SHARP AM400DE User Manual

AM-400DE
MODEL SELECTION CODE DESTINATION
AM-400 DE
France
AM-400 F
AM-400 IT Italy
Germany
AM-400 SE
U.K.
AM-400 H
Sweden
SERVICE MANUAL
No. 00ZAM400DESME
DIGITAL MULTIFUNCTIONAL SYSTEM
Illustration: AM-400DE
CHAPTER 1. GENERAL DESCRIPTION
[1] Caution........................................................... 1-1
[2] Specifications ................................................. 1-3
[3] Operation panel.............................................. 1-4
[4] Transmittable documents ............................... 1-5
[5] Installation ...................................................... 1-6
CHAPTER 2. ADJUSTMENTS
[1] Adjustments ................................................... 2-1
[2] Diagnostics and service soft switches............ 2-7
[3] Troubleshooting ........................................... 2-30
[4] Error code table............................................ 2-31
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Mechanical description................................... 3-1
[2] Disassembly and assembly procedures....... 3-18
CHAPTER 4. DIADRAMS
[1] Block diagram ................................................ 4-1
[2] Wiring diagram ............................................... 4-2
[3] Point-to-point diagram.................................... 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description........................................... 5-1
[2] Circuit description of control PWB.................. 5-1
MODEL
[3] Circuit description of LIU PWB ....................5-19
[4] Circuit description of power supply PWB......5-21
[5] Circuit description of CIS unit ......................5-23
[6] Circuit description of operation panel
[7] Data flow chart.............................................5-25
[8] Troubleshooting...........................................5-26
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit .......................................6-1
[2] LIU PWB circuit ...........................................6-14
[3] Power Supply PWB circuit...........................6-17
[4] High Voltage PWB circuit.............................6-19
[5] Operation Panel PWB circuit .......................6-22
CHAPTER 7. OPERATION FLOWCHART
[1] Protocol .........................................................7-1
[2] Power on sequence.......................................7-2
CHAPTER 8. OTHER
[1] Service tools ..................................................8-1
[2] Rewriting version up the FLASH ROM ..........8-2
Parts Guide
AM-400DE
PWB ............................................................5-24
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION
This document has been published to be used for after sales service only. The contents are subject to change without notice.
AM-400DE
AM-400DE

CHAPTER 1. GENERAL DESCRIPTION

Service Manual

[1] Caution

1. Laser caution

This laser facsimile is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH or IEC60825-1 standard. This means that this machine dose not produce a hazardous laser radiation. The use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
This laser radiation isn't a danger to the skin, but when an exact focusing of the laser beam is achieved on the eyes retina, there is danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.
1) When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a unit, not an individual part.
2) Do not look into the machine with the main switch turned on after removing the toner/developer unit and drum cartridge.
3) Do not look into the laser beam exposure slit of the laser optical unit with the connector connected when removing and installing the optical sys­tem.
4) The cover of Laser Printer Unit contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
CLASS 1
LASER PRODUCT
LASER KLASSE 1
Laser Wave Length : 770 nm -795 nm Laser Pulse Times : 72.58 ns Laser Output Power : max. 4.0 mW

2. Life of consumable

Section Part Estimated Life Replaced by
Toner cartridge Replacement cartridge (AM-30DC) 3,000 prints (at Letter/5% chart) User Drum cartridge Replacement cartridge (AM-90DR) 20,000 prints (at Letter/5% chart) User Paper feed Transfer roller (Refer to the P/G No. 3-19)
(NROLR2525XHZZ)
Fuser Fusing unit (Refer to the P/G No. 5-901)
(CFRM-2265XH02)
Paper transport Feed roller (Refer to the P/G No. 3-29)
(NROLR2333XHZZ)
Unit AM-400 5 years or 50,000 prints of early either --------------------------
50,000 prints Service Engineer
50,000 prints Service Engineer
Cleaning as needed --------------------------
1 – 1

3. Precautions for using Lead-Free Solder

1. Employing lead-free solder
This model employs lead-free solder.
This is indicated by the "LF" symbol printed on the PWB and in the service manual.
The suffix letter indicates the alloy type of the solder.
Example:
2. Using lead-free solder
When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may
result in cold soldered joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommended that a
dedicated bit is used, and that the iron temperature is adjusted accordingly.
AM-400DE
Indicates lead-free solder of tin, silver and copper.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer melting point (flow), to prevent damage to the
land of the PWB, extreme care should be taken not to leave the bit in contact with the PWB for an extended period of time.
Remove the bit as soon as a good flow is achieved.
The high content of tin in lead free solder will cause premature corrosion of the bit.
To reduce wear on the bit, reduce the temperature or turn off the iron when it is not required.
Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their
characteristics, making good soldering more difficult.
It will be necessary to clean and replace bits more often when using lead-free solder. Toreduce bit wear, care should be
taken to clean the bit thoroughly after each use.
1 – 2
AM-400DE

[2] Specifications

1. Print specifications

Printer type: Toner cartridge yield*: (continuous printing, 5% page coverage, A4 paper) Drum cartridge yield*: (continuous printing, 5% page coverage, A4 paper) PC print speed: Resolution:
* The yields may vary depending on coverage and operating condi­tions.
Laser Initial starter cartridge (included with machine): Approx. 1500 pages Replacement cartridge AM-30DC: Approx. 3000 pages Initial starter cartridge (included with machine): 20,000 pages (average) Replacement cartridge AM-90DR: 20,000 pages (average) 12 ppm (pages per minute) 600 x 600 dpi (dots per inch)

2. Copy specifications

Copy speed: Copy quality settings: Copy resolution set­tings: Enlargement/Reduction: Contrast settings: Halftone: Multiple copies: Maximum copy size:
12 cpm (copies per minute) Text, Photo 300 dpi, 600dpi
25% to 400% 5 levels 256 levels Max. 99 copies per original Document glass: A4 Auto document feeder: A4

3. Fax specifications

Automatic dialing: Modem speed:
Transmission time*: Communication method: Compression scheme: Applicable telephone line: Memory size*:
Resolution:
Halftone: Reception modes:
* Based on Sharp Standard Chart at standard resolution, excluding time for protocol signals (i.e., ITU-T phase C time only).
100 Speed Dial numbers 33,600 bps with automatic fallback to lower speeds (lowest speed 2400 bps) Approx. 3 seconds Super G3, G3 MMR, MR, MH Analog public switched telephone net­work (TBR21) 2 MB (approx. 125 average A4 pages)
Horizontal: 8 dots/mm Vertical: Standard: 3.85 lines/mm
Fine/Halftone: 7.7 lines/mm Super fine: 15.4 lines/mm 256 levels FAX ONLY, EXT. TEL

4. Scanning specifications

Scanner type: Resolution: Scan speed: (TWAIN scanning using the auto document feeder; reading time only)
Compatibility: Grayscale: Color:
CIS (Contact Image Sensor) 300/600 x 300 dpi, 300/600 x 600 dpi Black and white: 300/600 x 300 dpi: 6 sec/page 300/600 x 600 dpi: 6 sec/page Color and grayscale: 300/600 x 300 dpi: 22 sec/page 300/600 x 600 dpi: 22 sec/page TWAIN, WIA 256 levels 24-bit color

5. General specifications

Auto document feeder: Computer connection:
Effective scanning width: Effective printing width: Display: Paper tray capacity: (A4-size plain paper)
Power requirements:
Operating temperature: Humidity: Noise emission:
Power consumption:
Dimensions:
Weight:
A4 size: 20 sheets max. (80 g/cm USB 2.0 or 1.1 port (USB 2.0 or 1.1 cable must be purchased separately) 208 mm max.
202 mm max. 16-digit LCD display 250 sheets (80 g/cm (At room temperature and normal humidity) 220 - 230 V AC, 50 Hz (U.K., Eire: 230 V AC, 50 Hz) 10 - 30°C 20 - 85% RH German Products and Equipment Safety Law, Part 3: Noise emission: The max. Acoustic Noise is 70 dB(A) or less according to EN ISO7779. Idle: 9 W Maximum: 870 W Width: 475 mm Depth: 420 mm Height: 370 mm Approx. 12.7 kg (including trays and toner and drum cartridges)
2
)
2
)
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specifications figures indicated are nominal values of production units. There may be some deviations from these values in individual units.
Trademark information
Microsoft, Windows and Internet Explorer are trademarks of Microsoft Corporation in the U.S.A. and other countries.
1 – 3

[3] Operation panel

1
2
3
4
6
7
8
AM-400DE
9
COPY SCAN FAX
HELP
10511 12
1. Display
This displays messages and prompts to help you operate the machine.
2. ZOOM key
Press this key to select an enlargement or reduction setting when making a copy.
3. E-SORT key
Press this key when making multiple copies to have the copies collated (sorted into sets with the pages ordered 1, 2,
3..., 1, 2, 3..., etc.).
4. QUALITY key
When making a copy, press this key to select the type of original you are copying (TEXT, PHOTO). When sending a fax, press this key to select a resolution setting.
5. Right/left arrow keys
When making a copy, press either of these keys after selecting an enlargement/reduction setting with the ZOOM key to increase or decrease the setting by 1%. When sending a fax, press either of these keys to search through your auto­dial fax numbers.
6. MENU key
Press this key, followed by the left or right arrow key, to access special functions and settings.
7. CONTRAST key
Press this key to select a contrast setting when making a copy or sending a fax.
8. REDIAL key
Press this key followed by the Start key to automatically redial the last number dialed.
9. Stop key
Press this key to cancel operations before they are completed.
10. COPY key
Press this key to select copy mode.
13
!
14
DUPLEX SCAN
15
QUALITY
E-SORT
ZOOM
PRINT STOP
16
CONTRAST
MENU
ZA
ENTER
17 18 19
11. SCAN key
Press this key to select scan mode.
12. HELP (FAX key and SCAN key)
Press the FAX key and SCAN key simultaneously to print the HELP list, a brief guide to the operation of the machine.
13. FAX key
Press this key to select fax mode. When in fax mode, press this key to select the Line Monitor function.
14. Alarm indicator
This blinks when the toner cartridge nears empty or the drum cartridge is near or at the end of its life. This lights steadily when the toner cartridge is empty, the machine is out of paper, the print compartment cover is open, or when a paper jam has occurred (a message will appear to indicate the problem).
15. DUPLEX SCAN key
Press this key to copy or fax multiple two-sided pages.
16. PRINT STOP key
Press this key to cancel a print job sent to the machine from a computer.
17. ENTER key
Press this key to enter or select a setting.
18. BROADCAST key
Press this key to send the same fax to multiple destinations.
19. SPEED key
Press this key to dial a fax number using an abbreviated 2­digit Speed Dial number.
20. Number keys
Use these keys to enter the number of copies, dial fax numbers, and enter numbers and letters when storing auto­dial numbers.
21. Start key
Press this key when you are ready to begin copying, faxing, or scanning. The key can also be pressed in the date and time display of fax mode to show the percentage of memory currently used.
REDIAL
BROADCAST
SPEED
20
21
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AM-400DE
m
h

[4] Transmittable documents

1. Document Sizes

Normal size Width 148 - 210 mm
Length 148 - 297 mm
(Max.)

5. Automatic Document Feeder Capacity

Number of pages that can be placed into the feeder at anytime is as follows:
Normal size: max. ADF 20 pages
Special size: single sheet only (manual feed) NOTE: When you need to send or copy more pages than the feeder
limit, place additional pages in feeder when last page in feeder is being scanned.
Place additional pages carefully and gently in feeder. If force is used, double-feeding or a document jam may result.
(Min.)
182mm
148mm 210mm
Use document carrier sheet for smaller documents.
• With special sizes, only one sheet can be fed into the machine at a time. Insert next page into feeder as current page is being scanned.
(Max.) A4 size
[Normal size]
297mm
216mm
[Special size]
356m

2. Paper Thickness & Weight

20 sheets 1 sheet(Manual)
Paper weight 21.5 lbs.
Paper thickness (ref.) 0.1 mm 0.1 mm ~ 0.18mm Paper size LGL (216 mm x 355.6 mm)
Feeder capacity A4/LTR: 10 sheets max.
2)
(80 g/m
A4 (210 mm x 297 mm) LTR (216 mm x 279 mm)
LGL : 1 sheet max.
14 lbs. ~ 42 lbs.
2
(52 g/m
~ 157g/m
2)

3. Document Types

• Normal paper
Documents handwritten in pencil (No. 2 lead or softer), fountain pen, ball-point pen, or felt-tipped pen can be transmitted.
Documents of normal contrast duplicated by a copying machine can also be transmitted.
• Diazo copy (blue print)
• Diazo copy documents of a normal contrast may be transmitted.
• Carbon copy
A carbon copy may be transmitted if its contrast is normal.

6. Readable Width & Length

The readable width and length of a document are slightly smaller than the actual document size.
Note that characters or graphics outside the effective document scan­ning range will not be read.
Readable width
208mm, max
Readable widt
Readable length
This is the length of the document sent minus 4mm from the top and bottom edges.
4mm
Readable length
4mm

4. Cautions on Transmitting Documents

• Documents written in yellow, greenish yellow, or light blue ink can­not be transmitted.
• Ink, glue, and correcting fluid on documents must be dry before the documents can be transmitted.
• All clips, staples and pins must be removed from documents before transmission.
• Patched (taped) documents should be copied first on a copier and then the copies used for transmission.
• All documents should be fanned before insertion into the feeder to prevent possible double feeds.
1 – 5

[5] Installation

1. Site selection

Take the following points into consideration when selecting a site for this model.
ENVIRONMENT
• The machine must be installed on a level surface.
• Keep the machine away from air conditioners, heaters, direct sun­light, and dust.
• Provide easy access to the front, back, and sides of the machine. In particular, keep the area in front of the machine clear, or the orig­inal document may jam as it comes out after scanning.
• The temperature should be between 10 - 30°C.
• The humidity should be between 20% and 85% (without conden­sation).
ELECTRICITY: AC 220 - 230 V, 50 Hz, earthed AC outlet (U.K., Eire:230 V, 50 Hz, earthed (3-prong) outlet).
Caution!
• Connection to a power source other than that specified will cause damage to the equipment and is not covered under the warranty.
• If your area experiences a high incidence of lightning or power surges, we recommend that you install a surge protector for the power and telephone lines. Surge protectors can be purchased at most telephone specialty stores.
If the machine is moved from a cold to a warm place...
Condensation may form on the reading glass if machine is moved from a cold to a warm place, this will prevent proper scanning of documents for transmission. Turn on the power and wait approximately 2 hours before using machine.
TELEPHONE JACK
A standard telephone jack must be located near the machine. This is the telephone jack commonly used in most homes and offices.
• Plugging the fax machine into a jack which is not jack may result in damage to the machine or your telephone system. If you do not know what kind of jack you have, or need to have one installed, contact the telephone company.
AM-400DE
2) Releasing the scanner.
Before plugging in the power cord, pull the scanner release toward you to release the scanner lock.
Caution: Plugging in the power cord without releasing the scan- ner lock may damage the machine.
If you need to move the machine:
In the event that you need to move the machine to a new location, disconnect the telephone line cord before unplugging the power cord. After you have unplugged the power cord, push the scanner release back in to lock the scanner.
After moving, release the scanner lock first and then plug in the power cord. Connect the telephone line last.
3) Connecting the power cord.
Plug the power cord into a 220 - 230 V, 50 Hz, earthed AC outlet (U.K., Eire:230 V, 50 Hz, earthed (3-prong) outlet).
Caution: Make sure the scanner has been released as explained on the previous page before plugging in the power cord.
The power outlet must be installed near the equipment and must be easily accessible.
Note: The shape of the power plug varies by country.

2. Attaching the trays

1) Attach the document feeder tray.
Slide the output tray into the machine as shown. When it stops, lift the end slightly and push in so that the tray locks in place.
Important: The output tray must be attached correctly or the machine will not operate.
POWER CORD
The machine does not have a power on/off switch. The power is turned on and off by simply plugging in or unplugging the power cord.
Whenever you unplug the power cord, wait at least 5 seconds before plugging it back in.
If you area experiences a high incidence of lightning or power surges, it is recommended that you install surge protectors for the power and telephone lines. Surge protectors can be purchased from your dealer or at most telephone specialty stores.
1 – 6
AM-400DE
4) Connecting the telephone line cord.
Insert one end of the line cord into the socket on the back of the machine marked TEL. LINE. Insert the other end into a wall tele­phone socket.
Note: The shape of the line cord plug varies by country.
Italy: Use the provided adapter to connect the line cord to the wall socket.
Make sure that the line cord is inserted into the TEL LINE socket. Do not insert it into the TEL. SET socket!
1) Press the side cover release , open the side cover ,
and then open the front cover .
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1
2
TEL. LINE
TEL. SET
Germany: In Germany, the machine is supplied with a N-coded line cable, enabling you to use an extension (cordless) telephone on the same line. If you don’t have the standard NFN-outlet of TELEKOM, you can purchase an NFN-adapter at your retailer.
Important: The facsimile function of this machine is not designed for use on a line which has call waiting, call forwarding, or certain other special services offered by your telephone company. If you attempt to use the facsimile function in conjunction with any of these services, you may experience errors during transmission and reception of facsimile messages. The facsimile function of this machine is not compatible with digital telephone systems.
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2
Caution! The fusing unit inside the print compartment becomes very hot during operation. Do not touch the inside of the print com­partment after the machine has been in operation.
2) Remove the new drum cartridge from its packaging.
3) Insert the drum cartridge into the print compartment, sliding it along the guides.
Do not touch or allow other objects to contact the drum (the green cylinder). This may damage the drum. If fingerprints, dust, or other contaminants get on the drum, wipe it gently with a clean cloth.
Exposure to light for more than several minutes will damage the drum. Be sure to insert the drum cartridge promptly into the machine.
If you find it necessary to leave the cartridge out of the machine for move than several minutes, wrap the cartridge in black paper.

3. Installing the toner cartridge and drum cartridge

The laser printer in the machine uses a toner cartridge and drum car­tridge.
• The starter toner cartridge included with the machine can print approximately 1,500 A4-size pages at 5% page coverage.
• When replacing the toner cartridge, use a SHARP AM-30DC toner cartridge. One cartridge can print about 3,000 A4-size pages at 5% coverage.
• The drum cartridge can print approximately 20,000 A4-size pages. When replacing the drum cartridge, use a SHARP AM-90DR drum cartridge.
Follow the steps below to install the toner cartridge and the drum car­tridge.
Note: The quality of the toner cartridge is guaranteed for 18 months after the date of manufacture indicated on the package. The quality of the drum cartridge is guaranteed for 24 months after the date of manu­facture indicated on the package.
Grasp this handle to
push the cartridge in.
4) Remove the new toner cartridge from its packaging. Shake the car­tridge side to side four or five times to distribute the toner evenly within the cartridge.
1 – 7
5) Grasp the cartridge handle and insert the toner cartridge into the
1 Press and then or
repeatedly until the display at right
appears.
MENU
Z
A
Display:
LIFE
2 Press .
3 Press .
4 Press repeatedly to exit.
CLEAR: START KEY
DRUM COUNTER
1: LIFE COUNTER
1 Press and then or
repeatedly until the display at right
appears.
2 Press .
3 Press .
4 Press repeatedly to exit.
MENU
Z
A
Display:
CLEAR: START KEY
LIFE
TONER COUNTER
3: CLR DRUM COUNT
print compartment, sliding it along the guides.
After inserting the cartridge, press on the arrow mark to mark sure it “clicks” into place.
Do not touch the roller in the toner cartridge.
Grasp this handle to insert the cartridge.
Press on this mark to make sure the cartridge "clicks" into place.
6) Close the front cover and then the side cover .
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AM-400DE

4. Resetting the drum counter

Each time you install a new drum cartridge, follow the steps below to reset the drum counter to zero.

5. Manually resetting the toner counter

When a new toner cartridge is installed, the toner counter is reset in Step 7 on the previous page. The procedure below is normally not nec­essary; however, it can be used in the event that you need to reset the toner manually.
Make sure the side cover is completely closed. Otherwise, light may enter the print compartment and damage the drum.
Display:
TONER EXCHANGED?
1
2
1=YES,2=NO
7) If you installed a new toner cartridge, press to select YES
(this will reset the toner counter to zero).
NEW TONER?
OK: PRESS START
If you temporarily removed and then replaced an old toner car-
tridge for maintenance or other reason, press to continue

6. Loading paper

You can load approximately 250 sheets of A4 paper (80 g/cm2) in the paper tray.
Caution! Do not use the blank side of paper that has already been printed on.
1) Remove the output tray.
using the previous toner count. (Note: Be sure to press ,
or the machine will not alert you when the toner cartridge is out of toner.)
8) Press .
9) If you installed a new drum cartridge, reset the drum counter as explained below.
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AM-400DE
2) Insert a stack of paper into the tray, print side up.
Important! The stack of paper must not be higher than the paper height line on the paper tray.
Paper height line
3) Squeeze the sides of the paper guide as shown and slide it to the slot for the length of the paper you are loading (A4).
4) Replace the output tray.

7. Installing the software

To use the machine as a printer and scanner for your computer, you must install the software and connect a USB cable. The CD-ROM that comes with the machine contains the following software:
MFP Drivers: These consist of the printer driver that allows the machine to be used as a printer, and the scanner driver that allows you scan using TWAIN and WIA compliant applications.
Sharpdesk: This is an integrated software environment that makes it easy to manage image files and launch applications. (Note that Internet Explorer this is not installed, you will be prompted during the installation pro­cedure to install Internet Explorer
Button Manager: This allows you to initiate scanning from the operation panel of the machine by selecting one of six preset scan menus.
®
5.5 or higher is required to install Sharpdesk; if
®
6.0SP1 from the CD-ROM.)
Minimum system requirements
Operating system: Windows
®
Me / 2000 Professional/ XP Port: USB 2.0 or 1.1 port Display: 800 x 600 (SVGA) with 256 colors or more Free hard-disk space: 150 MB or more Other requirements: An environment in which the operating system can freely operate.
Comments:
• USB 2.0 Hi-Speed is only possible if your computer has a USB 2.0 port and you are using a USB 2.0 cable. In addition, the Microsoft USB 2.0 driver must be preinstalled in your computer, or the USB
2.0 driver for Windows
®
2000/XP provided through Windows
Update must be installed. Note that USB 2.0 Hi-Speed is not possi­ble in Windows
®
Me.
• To scan the maximum document length (356 mm) using the auto document feeder at 1200 dpi in full colour, at least 1GB of memory is required. In addition, at least 600MB or more of free hard disk space is required on the drive where your operating system is installed. In Windows
®
Me, it is not possible to scan an A4 size document at 1200 dpi in full color or grayscale (a lower resolution or a smaller scanning area must be selected).
Note for Windows
®
Me: In the Power Management settings in the Control Panel, System stand-by must be set to Never. In addition, do not use the stand-by feature that appears when you shut down Windows.
Installing the software
• A USB cable is required to connect the machine to your computer. Please purchase a USB 2.0 or USB 1.1 cable. The USB cable will be connected during the software installation procedure. (If you wish to use USB 2.0 Hi-Speed mode and your system meets the requirements for Hi-Speed mode, purchase a USB 2.0 cable. A USB 2.0 certified cable is recommended.)
• To install the software on Windows you must log in with administrator’s rights.
• The windows shown in the following procedure appear in Win-
®
dows
XP. The windows that appear in other versions of Windows
may be slightly different.
Note: In the following instructions, “Windows 2000” indicates Win­dows 2000 Professional (the software cannot be installed on Win­dows 2000 Server).
1) Make sure that the USB cable is not connected to your com- puter. (The cable will be connected in Step 11.)
If the USB cable is connected, a Plug and Play window will appear. Click the Cancel button to close the window and discon­nect the cable.
2) Insert the Sharp CD-ROM into your computer’s CD-ROM drive.
3) In Windows
®
XP, click the start button, click My Computer, and
then double-click the CD-ROM icon.
®
In Windows
Me/2000, double-click My Computer on the desktop
and then double-click the CD-ROM icon.
4) Double-click the setup icon ( ) in the CD-ROM window.
5) The Language Selection window will appear. Select the language that you wish to use and click Next. (The language selections vary depending on your country or region.)
®
2000/XP using the installer,
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6) Follow the instructions in the windows that appear.
When the Setup Type Selection window appears, select Stan­dard to install all of the software components (this should normally
be selected). If you only wish to install certain components, select
Custom and then select the components that you wish to install. Note: If you wish to select the folder where Sharpdesk and/or But-
ton Manager are installed, select Custom.
AM-400DE
10)The Search Setup Wizard will appear. Follow the on-screen instructions to create an index database for Sharpdesk.
11)Make sure that the power cord of the machine is not plugged in (the machine is powered off), and then connect the USB cable.
Insert one end of the USB cable into the USB port on the machine and the other end into your computer’s USB port.
Comments:
Do not connect the AM-400 to a hub to which another AM-400 is connected. If this is done, the AM-400 will not operate correctly.
If you find that your computer does not recognize the machine or operation is unstable, try connecting the USB cable to a different USB port on your computer, or try a different USB cable (use the shortest possible cable).
In Windows
®
2000/XP, if a warning message appears at any time regarding the Windows logo test or digital signature, be sure to click Continue Anyway or Yes .
7) When the Finish window appears to indicate that the selected packages have been installed, click Close.
8) If the installation was a Standard installation, the following window will appear. Click OK.
If you installed the MFP drivers using a Custom installation and did not install Sharpdesk, the following window will appear. Click OK and go to Step 11.
9) The following window will appear. Click Yes to restart your com­puter.
12)Plug in the power cord of the machine.
Windows
®
XP: Go to the procedure for completing installation of
the software on Windows XP below.
Windows
®
2000: This completes the installation of the software.
Note: If a warning message regarding the Windows logo test
appears (the warning may appear twice), click Yes each time the window appears. This will complete the installation of the software.
Windows
Completing installation of the software on Windows
®
Me: This completes the installation of the software.
®
XP
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AM-400DE
13)In Windows® XP, the Found New Hardware Wizard will appear. Make sure that Install the software automatically (Recom- mended) is selected and click Next (this will install software for using the machine as a scanner).
14)When the wizard finishes installing the scanner software, click Fin- ish to close the wizard.
15)After a brief interval, the Found New Hardware Wizard will appear again to install software for using the machine as a printer. Make sure that Install the software automatically (Recommended) is selected and click Next.
Note for Windows first. Select No, not this time and click Next. Continue from the previous window.
If the following warning message appears regarding the Windows logo test, click Continue Anyway.
®
XP SP2: The following window will appear
If the following warning appears regarding the Windows logo test, click Continue Anyway.
1 – 11
16)When the wizard finishes installing the printer software, click Finish to close the Wizard. This completes the installation of the software on Windows
®
XP.
Sharpdesk online guide
For information on using Sharpdesk, view the Sharpdesk online guide on the CD-ROM. To view the online guide, open the Manual folder and then the EnglishA folder on the CD-ROM, and double­click SDUG_Enu.pdf.
Removing the software
In the event that you need to remove the software from your com­puter, follow the steps below.
1) Disconnect the USB cable from your computer and the machine.
2) Open the Control Panel and select Add or Remove Programs (or Add/Remove Programs).
3) Select SHARP AM-400 Series MFP Driver (or Sharpdesk) from the list, and click the Change/Remove button (or the Add/ Remove button).
AM-400DE

8. Clearing a jammed document

If the original document doesn’t feed properly during transmission or copying, or DOCUMENT JAMMED appears in the display, first try
pressing . If the document doesn’t feed out, open the auto
document feeder cover and remove it.
Important:
Do not try to remove a document without opening the auto document feeder cover. This may damage the feeder mechanism.
1) Squeeze the cover release and open the auto document
feeder cover. Open the document glass cover.
1
1
4) Click OK to confirm the removal.
2) Remove the document.
• The document can be removed from either the top or the bottom slot, whichever is easiest.
3) Close the auto document feeder cover, pressing down on both sides to make sure it clicks into place.
Press down on the marks
1 – 12
AM-400DE
1
2

9. Clearing jammed printing paper

4) If the jammed page cannot be pulled out directly, open the front
1) Press the side cover release and then open the side cover
2
.
2) Push the two heater roller release levers down to release the heater roller.
Caution! The fusing unit (indicated in white at right) becomes very hot during operation. Do not touch the fusing unit.
1
1
2
cover and rotate the white knob in the direction
shown to feed the jammed page out into the output tray.
2
1
5) After the jammed page has been removed, push the two heater roller release levers back up.
2
3) If the jammed page is protruding from the side of the machine, gen­tly pull it out. Take care not to tear the paper or leave any torn pieces of paper in the print compartment.
If this clears the jam, go to Step 5.
If you are unable to clear the jam in this way, go to Step 4.
Take care not to touch or allow other objects to contact the drum
(the green cylinder). This damage the drum.
6) Close the front cover (if you opened it) and then the side
cover .
1
2
1
Note: If you find that another paper jam occurs immediately after clearing a paper jam, open the side cover and then the front cover and remove the jammed paper as explained above. With the front cover and side cover still open, remove the output tray and remove the printing paper from the paper tray. Replace the output tray and close the front cover and then the side cover. Remove the output tray once again, fan printing paper, replace it in the paper tray, and then replace the output tray.
1 – 13

10. Troubleshooting

1. Display
ADD PAPER Check the printing paper. If the tray is empty, add
BYPASS MISFEED The paper is not inserted correctly in the bypass tray.
BYPASS PAPER! / IF COPY, PRESS (alternating messages)
CHK SCANNER LOCK/ PLS RETURN POWER (asternating messages)
COVER OPEN One or both of the print compartment covers are
DATE/TIME UNSET The date and time need to be set. Note
DOCUMENT JAMMED The original document is jammed. See the following
DOCUMENT READY A document has been inserted in the auto document
DRUM LIFE OVER This appears when the drum cartridge needs
FAX RX IN MEMORY A fax has been received in memory because the
GRP. SPACE FULL This appears if you attempt to store a Group when
LINE ERROR Transmission or reception was not successful. Press
MEMORY IS FULL If faxes have been received to memor y because
NO # STORED This appears if you attempt to search for a Speed Dial
OFF HOOK This appears when an extension phone connected as
paper. If there is paper in the tray, make sure it is inserted correctly (take out the stack, align the edges evenly, and then reinsert it in the tray). Printing will resume automatically when the output tray is replaced.
Remove the paper and insert it again.
Paper has been inserted in the bypass tray. If the
paper has been inserted for a copy job, press to
set the paper size. If the paper is for a print job, the message can be disregarded.
Make sure that the scanner lock has been released and then unplug the power cord, wait at least 5 seconds, and plug it back in.
open. Make sure both covers are closed.
that the date and time settings will be lost if the machine is unplugged or a power failure occurs.
section, Clearing Paper Jams. Document jams will occurifyouloadmorethan20pagesatonceorload documents that are too thick. The document may also jam if the receiving machine doesn’t respond properly when you attempt to send a fax.
feeder and the machine is waiting for you to begin faxing or copying.
replacement.
toner cartridge needs replacement, you have run out of printing paper, the paper is jammed, or paper is inserted in the bypass tray. The fax will print out automatically when the problem is fixed.
both Groups are already programmed.
the STOP key to clear the message and then try again. If the error persists, see Line error.
printing is not possible (an additional message will indicate the problem), resolve the problem so that printing can continue (see Substitute Reception to Memory) If you are attempting to send a fax, see If the memory becomes full. If you are copying, see If MEMORY IS FULL appears.
number when none have been stored.
explained is lifted. Only can be pressed in
fax mode when this message appears.
REMOVE / BYPASS PAPER (alternating messages)
SYSTEM ERROR [XX] (a number appears in “XX”)
(Refer to Printer error code/ Scanner message)
SET BYPASS PAPER /
A
SIZE: XXXX (alternating messages; a paper size appears in “XXXX”)
TONER EMPTY The toner cartridge must be replaced. Printing will be
TONER NEAR EMPTY The toner cartridge is almost out of toner
TOTAL PAGE(S) 01 Number of fax pages transmitted or received.
A fax has been received to memory because paper is inserted in the bypass tray (faxes cannot be printed while paper is in the bypass tray). Remove the paper from the bypass tray to allow the fax to be printed.
If this message appears, unplug the power cord, wait about 10 seconds, and then plug it back in. If the message still appears, unplug the power cord and call for service.
Paper must be inserted in the bypass tray for a print job or copy job that requires use of the bypass tray. Insert the indicated size of paper in the tray.
possible (although the output will be increasingly faint) until a fax is received. Once a fax is received, it will be held in memory and printing will not be possible until the toner cartridge is replaced.
(approximately 200 pages can be printed).
2. Audible signals
Continuous tone 3 seconds Indicates the end of transmission or
Intermittent tone (3 beeps)
Rapid intermittent tone
5 seconds (1 second on, 1 second off)
35 seconds (0.7 seconds on,
0.3 seconds off)
reception.
Indicates incomplete transmission or reception.
Indicates that an extension phone connected as explained is off hook.
3. Printer error code (Troubleshooting Refer to page 5-27 to 5-29)
PAPER JAM The roller sensor could not detect its home position
SYSTEM ERROR [P2]
SYSTEM ERROR [P3]
SYSTEM ERROR [P4] ROM or RAM error was detected on the printer
SYSTEM ERROR [P5] High temperature error was detected.
SYSTEM ERROR [P6] Low temperature error was detected.
SYSTEM ERROR [P7]
after driving the pick up motor for the specified period.
The roller sensor could not become NOT-Active after passing the specified period from picking up paper.
The printer controller detected the optical unit (LSU) error.
The external interrupt signal for optical unit (LSU) or High-voltage control did not become active after passing the specified period.
Thermistor error was detected.
control unit.
Communication error between the main controller and the printer controller was detected.
AM-400DE
OUTPUT TRAY OFF The output tray is not attached correctly. Attach it as
PAPER JAMMED The printing paper is jammed.
PAPER MISMATCHED This appears after printing if the size of the printed
explained. The machine will not operate if the output tray is not attached correctly.
image did not match the paper size on some pages of the job. Check the printed pages and reprint as needed.
4. Scanner message (Troubleshooting Refer to page 5-29)
CHK SCANNER LOCK The scanner unit could not detect change point of
home postion. (ON-> OFF or OFF->ON)
1 – 14
AM-400DE

11. Quick setup guide

For detailed instructions
on setting up and using the AM-400, see the online guide on the CD-ROM. To open the guide, double-click the Manual folder on the CD-ROM, double-click English, and then double­click Online Manual.pdf. (Note: Acrobat Reader 5.05 or higher is required to view the manual.To install Version 5.05, double-click Acrobat Reader, English, and then ar505enu.exe on the CD-ROM.)
All company names and product names appearing in this
setup guide are the trademarks of their respective owners.
Important:
3
Pull the scanner release toward you to release the scanner lock. Caution: Be sure to release the scanner lock
before plugging in the power cord.
Install the toner cartridge and drum cartridge.
6
1. Press
5. Insert the toner cartridge, sliding it along
1
ı
. Open the side cover
2
and then the front cover .
ı
3
3
ı
1
Caution!
Do not touch the fusing unit under the side cover after the
2
machine has been in operation, as it may become very hot.
the guides until it clicks into place.
Press on the arrow mark to make sure the cartridge clicks into place
Make sure you have the following items. If any
1
are missing, contact your dealer or retailer.
Note: The shape of the line cord plug varies by country. An adapter (not shown) is provided in some countr ies.
Telephoneline cord
Output tray
Plug the powercord into a standard,ear thed
4
power outlet. Note: The power outlet must be installed near the equipment and must be easily accessible.
Note: The shape of the power plug varies by country
2. Remove the drum cartridge from its packaging.
6. Close the front coverıand then the side cover
1
2
Document feeder tray
1
ı
2
ˇ
.
ı
Toner cartridge
Display:
TONER EXCHANGED?
1:YES, 2:NO
Drum cartridge
Setup
CD-ROM
Guide
3. Inser t the drum cartridge, sliding it along the guides.
Grasp this handle to push the cartridge in
7. Press
to select
then press . (This resets
the toner cartr idge counter.)
2
When the tray stops, lift the end slightly and push in.
5
Note: The
shape of the line cord plug varies by country.
"YES" and
Attach the trays.
Connect the phone line cord to the TEL. LINE jack and a wall jack.
Italy: Use the provided adapter to connect the line cord to the wall socket.
T
EL.
LINE
TE
L.
S
E
T
4. Remove the toner cartridge from its packaging. Shake the car tridge side to side four or five times to distribute the toner evenly within the cartridge.
8. Reset the drum car tridge counter :
MENU
a.Press
A
display.
b. Press and then .
c. Press repeatedly to exit.
once and then or
until "LIFE" appears in the
Z
Load paper.
7
1. Remove the output tray.
3. Squeeze the sides of the paper guide and slide it to the slot for the length of paper loaded.
2. Inser t a stack of paper into the tray, print side up.
The stack should not be higher than this line
4. Replace the output tray.
Set the date and time that appear
8
in the fax mode display.
1. In the date and time display of faxmode
FAX
(press if needed to select fax
mode), press , , .
2. Enter a two-digit number for the day ("01" to "31").
MENU
Example: the 5th
To clear a mistake press .
Z
3. Enter a 2-digit number for the month.
Example: February
4. Enter the year (four digits)
Example:
1 – 15
5. Enter a two-digit number for the hour (00 to 23) and a two-digit number for the minute (00 to 59).
Example: 9:25
6. Press .
ENTER
7. Press repeatedly to exit.
AM-400DE
Install the software on your computer. (The software
9
allows the machine to be used as a printer and scanner.)
1. Make sure that a USB cable is not connected to the machine and your computer. (The cable
will be connected in Step 11.)
If a cable is connected and a Plug and Play window appears, close the window and disconnect the cable.
2. Insert the Sharp CD-ROM into your computer's CD-ROM drive.
3. Windows
R
XP: Click the start button, click My
Computer, and double-click the CD-ROM icon.
R
Windows Me/2000: Double click the desktop and double-click the CD-ROM icon.
My Computer
4. Double-click the setup icon ( ) in the CD-
ROM window.
5. If the Language Selection window appears, select the language that you wish to use and click Next (the language selections will vary depending on your country or region).
6. Follow the on-screen instructions.
When the Setup Type Selection window appears, select
Standard to install all of the software components (this should normally be selected). If you only wish to install certain components, select Custom and then select the components that you wish to install.
7. When the
8. If the installation was a Standard installation, the
R
In Windows 2000/XP, if a warning message appears at any time regarding the Windows logo test or digital signature, be sure to click
Continue AnywayorYes
selected packages have been installed, click
following window will appear. Click OK.
.
Finish
window appears to indicate that the
Close
Note: A USB 2.0 or 1.1 cable is required to connect the
machine to your computer. Please purchase this separately.
If you installed the MFP drivers using a and did not install Sharpdesk, the following window will
OK
appear. Click
9.
The following window will appear. Click Yes to restart your computer.
and go to Step 11.
on
10. The Search Setup Wizard will appear. Follow the on-screen instructions to create an index database for Sharpdesk.
11. Make sure that the machine's power cord is not plugged in, and then connect the USB cable to the USB port on the machine and on your computer.
12. Plug in the machine's power cord.
Windows XP: Follow Steps 13 through 16 to
Windows 2000: This completes the installation of the
.
R
complete the installation of the software.
R
software.
Note:
If a warning message regarding the Windows logo test appears (the warning may appear twice), click each time the window appears. This will complete the installation of the software.
Custom
installation
Yes
Windows Me: This completes the installation of the
Completing the installation on Windows XP
13. In Windows XP, the Found New Hardware
If a warning message appears regarding the Windows
14. When the wizard finishes installing the software, click
15. After a brief interval, the Found New Hardware
If a warning message appears regarding the Windows
16. When the wizard finishes installing the software,
R
software.
Note:
In the power management settings in the
Panel
,
System stand by
Wizard will appear. Make sure that Install the software automatically (Recommended) is selected and click Next.
Note for Windows XP SP2
wizard will ask you if the wizard can connect to Windows Update. Select
logo test, click Continue Anyway.
Finish to close the wizard.
Wizard will appear again. Make sure that Install the software automatically (Recommended) is
selected and click Next.
logo test, click Continue Anyway.
click Finish to close the wizard. This completes the installation of the software on Windows XP.
must be set to
R
R
No, not this time
: The first window of the
and click
Never
R
Next
Control
.
.
R
Configure Button Manager (one of the programs installed in the above step) as
10
the program on your computer that handles scanner events from the machine.
R
Windows XP/Me
1. Click the start button, click Control Panel,and double-click Scanners and Cameras.
If
Scanners and Cameras
click view all Control Panel options
Me,
2. Right-click the SHARP AM-400 icon and select Properties.
does not appear in Windows
.
3. The SHARP AM-400 Properties appear. Click on the Events tab.
4. Select SC1 from the Select an event list.
5. In the Actions field, select Start this program and then select Sharp Button Manager I from the list of programs. Click Apply.
6. Repeat Steps 4 and 5 for each of events SC2 through SC6. When finished, click the OK button.
R
Windows 2000
1. Click the Star t button, point to Settings,and select Control Panel.
2. In the Control Panel, double-click Scanners and Cameras.
3. Select SHARP AM-400 and click Properties.
4. Click the Event s tab in the SHARP AM-400 Properties.
5. Select SC1 from the Scanner events list.
6. In Send to this application,selectSharp Button Manager I.
If other applications appear in the list, make sure that
none are selected.
7. Click the Apply button.
8. Repeat Steps 5 through 7 for each of events SC2 through SC6. When finished, click the OK button.
1 – 16
AM-400DE
AM-400DE

CHAPTER 2. ADJUSTMENTS

[1] Adjustments

1. General

Since the following adjustments and settings are provided for this model, make adjustments and/or setup as necessary.

2. Adjustments of output voltage (FACTORY ONLY)

1. Install the power supply unit in the machine.
2. Set the recording paper and document.
3. When the document is loaded, power is supplied to the output lines. Confirm that outputs are within the limits below.
2.1. Output voltage settings
Service Manual
CNLSR
CNPM
CNHV
CNMM
CNPUM
CNTCT
CNFM
CNROLSNS
CNTCVR
CNBYPE
CNPIN
CNPW
1
FUSING UNIT
CNRTH
CNOUT1
CNOUT2
CONTROL PWB
(TOP SIDE)
14
CNHT
3
1
THERMAL
FUSE-2
CNSCM
CNCIS
CNLIU
CN6
3
1
1
1
2
CN2
POWER SUPPLY PWB (TOP SIDE)
INTERLOCK
SWITCH
CNPN
CNORG
CNHPS
CNUSB
CNPW
CNFRT
CNSP
14
Output Voltage limits +24VSUB 23.04V~24.96V
+24VMAIN 23.04V~24.96V
+5VMAIN 4.75V~5.25V
+3.3VMAIN 3.201V~3.399V
Connector CNPW
Pin No.
1
2 3 4 5 +24VMAIN 6 +24VMAIN
7DG
8
9
10
11
12
13
14
Connector
Pin No.
1
2 3
Connector
Pin No.
1
2 3
Connector
Pin No.
1
2
CNPW MG +24VSUB
MG MG
+5VMAIN
DG
+3.3VMAIN
DG
/HEATER ON
/PWRLY
/ZC
CN6
+24VMAIN N.C.
+24VS
CNHT
N N.C.
L
CN2
1 2
2 – 1

3. High voltage power check

3.1. General
Note: Since the parts of this PWB cannot be supplied, change it as a unit.
CAUTION
DO NOT TOUCH!
CN1
CN3
(VR51)
Q3
D3
D10
J1
QJ005
VR1
D1
D58
J6
D2
D8
J3
VR51
D61
D62
D60
D52
D54
C1
J5
R1
J2
Q52
B51
C9
Q38
B1
QJ071
D9
D53
J4
C56
C65
VR31
C31
CAUTION HIGH VOLTAGE AREA MAX. 4000V
D4
C6
CN4
R93
D5
C5
J52
J51
R15
C7
D7
R16
R67
D31
J12
J11
J22
J21
J42
J41
J32
J31
CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson. There are many high voltage parts inside the unit, and touching them is dangerous.
AM-400DE
CAUTION HIGH VOLTAGE AREA MAX. 4000V
R10
R3
R9
R8
R3
C2
R44
R65
R66
R59
R94
R5
R98
R6
C55 R60
C52
R43
R74
R73
R103
R80
R79
R81
Q34
D42
R42
D41
R102
Q31
D59
Q33
Q32
D57 D56 D55
Q35
R32 R31
R41
R78
Q36
C32
R36
R34
R33 R35
R72
R71
R40
R70
R39
R38
Q37
R37
R86
IC1
C8
R92
R61
C53
R58
R75
R101
R69
R46
R76
R77
R83
R84
R85
R87
R88 R89 R90
C4 R13 R14
R7
R91
C54
R66
R11
R4
R18
R14
R47
Q51
R3
Q1
R19
R63
R53
R100
CN1
C61
R51
Q57
R54
R52 C62 R55 C51
CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson. There are many high voltage parts inside the unit, and touching them is dangerous.
R2
R17
R57
R56
R99
C66
R48
Q58
R62
R50
R49
R64
2 – 2
AM-400DE
3.2. MC Voltage Check Point
D3
CN3
CN1
C1
J5
R1
J2
Q52
VR1
D8
D10
VR51
D1
D58
J1
QJ005
B51
J3
D60
D52
Q3
B1
GND (-)
D4
C6
D5
C7
D7
R16
R67
D61
QJ071
C9
Q38
D53
D9
J4
C56
C5
R15
D31
VR31
J6
D2
D62
D54
J52
J11
J41
J51
J12
J22
J21
J42
J32
J31
CN4
R93
MC Voltage Check Point (-)
(There is danger of an electric shock!) Use Measuring instrument:
Input Resistance : more than 100 M Maximum Voltage : more than 2 kV
VOLTAGE MC:-950V±20V(PRINTING) MC:-850V±20V(CLEANING)
C65
C31
1) MC Voltage
Voltage(v)
CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson. There are many high voltage parts inside the unit, and touching them is dangerous.
300Hz
Time(s)
Type
-570V
-950V
-1330V
Tolerance
± 67V
± 20V
± 67V
2 – 3
3.3. TC Voltage Check Point
D3
CN3
CN1
C1
J5
R1
J2
Q52
VR1
D8
D10
D1
D58
J1
QJ005
B51
VR51
J3
D60
D52
AM-400DE
Q3
J6
D2
D61
D62
D54
QJ071
C9
Q38
D53
D9
C56
B1
GND (-)
D4
R15
C6
D5
C5
C7
D7
J52
J11
J51
J12
CN4
R93
TC Voltage Check Point (+)
(There is danger of an electric shock!) Use High Voltage Tester: Requirement of Measuring instrument:
Input Resistance : more than 100 M Maximum Voltage : more than 5 kV
R16
J22
R67
J4
D31
VR31
J21
J42
J41
J32
J31
VOLTAGE TC(+):+3600V±72V(PRINTING) TC(-):-500V±50V(CLEANING)
1) TC Voltage
Voltage(v)
C65
C31
CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson. There are many high voltage parts inside the unit, and touching them is dangerous.
300Hz
Type
-3980V
-3600V
-3220V
Time(s)
Tolerance
± 72V
2 – 4
AM-400DE
3.4. SV/DV Voltage Check Point and SV (-) Voltage Adjustment Volume
Q3
CN3
CN1
D3
VR1
C1
J5
R1
D10
D58
J1
J2
Q52
J6
D2
D8
J3
VR51
D1
D60
C9
D61
D62
D52
QJ005
B51
D54
CAUTION - HIGH VOLTAGE The unit's back cover should never be opened by anyone other than a qualified serviceperson. There are many high voltage parts inside the unit, and touching them is dangerous.
QJ071
D9
D53
Q38
J4
C56
C65
B1
VR31
C31
R15
D31
D4
C6
R93
D5
C5
J52
J51
C7
D7
R16
R67
J12
J11
J22
J21
J42
J41
J32
J31
GND (-)
CN4
DV Voltage Check Point (+) VOLTAGE DV(+):+300V±5V(CLEANING) DV(-):-220V±5V(PRINTING)
SV Voltage Check Point (+) VOLTAGE SV(+):+400V±15V(CLEANING) SV(-):-320V±15V(PRINTING)
DV (-) Voltage adjustment Volume VR31 It can be made to change with VR31. In the range of ± 50V. DV(-):-220V±50V(PRINTING)
2 – 5

4. IC protectors replacement

1 Make sure that the date and time
display of fax mode appears (if needed
press ) and then press .
2 Press .
3 Press (Press in Russia and
Poland).
4 Press a number key to select the
desired volume setting:
:HIGH
: MIDDLE
:LOW
:OFF
5 Press repeatedly to exit.
FAX
MENU
Display:
1: DATE&TIME SET
FAX SETTING
1: HIGH
The display briefly shows your selection, then:
4: ALARM VOLUME
ICPs (IC Protectors) are installed to protect the CIS unit, LIU PWB unit, Scanner motor drive circuit, Pickup motor drive circuit, Main motor drive circuit and IC22 circuit. ICPs protect various ICs and elec­tronic circuits from an overcurrent condition.
The location of ICPs are shown below:
AM-400DE
5. Settings
5.1. Dial mode selector
DIAL mode (Soft Switch No. SW5 Data No. 5)
Setting is not required since the required mode is TONE ONLY.

6. Volume setting

CNLSR
F5
CNPM
F7
CNHV
CNMM
CNPUM
F6
CNTCT
CNFM
CNROLSNS
CNTCVR
CNBYPE
CNPIN
F6/F8:Top side F3/F4/F5/F7:Bottom side
1) F8 (KAB5002 201) is installed in order to protect IC’s from an overcurrent generated in the CIS unit. If F8 is open, replace it with a new one.
2) F4 (KAB5002 251) is installed in order to protect IC’s from an overcurrent generated in the LIU PWB unit. If F4 is open, replace it with a new one.
3) F3 (KAB3202 202) is installed in order to protect IC’s from an overcurrent generated in the scanner motor drive circuit. If F3 is open, replace it with a new one.
4) F5 (KAB5002 251) is installed in order to protect IC’s from an overcurrent generated in the IC22 circuit. If F5 is open, replace it with a new one.
5) F6 (KAB3202 102) is installed in order to protect IC’s from an overcurrent generated in the pickup motor drive circuit. If F6 is open, replace it with a new one.
6) F7 (KAB2402 402) is installed in order to protect IC’s from an overcurrent generated in the main motor drive circuit. If F7 is open, replace it with a new one. In addition to the replacement of F3, F4, F5, F6, F7 and F8, the fac­tor causing F3, F4, F5, F6, F7 and F8 to open must also be repaired. If not, F3, F4, F5, F6, F7 and F8 will open again. Replacement parts
KAB3202 202 (Sharp code: QFS-L1027YCZZ)
KAB5002 251 (Sharp code: QFS-L2021XHZZ)
KAB3202 102 (Sharp code: QFS-L0004QCZZ)
KAB2402 402 (Sharp code: QFS-L2025XHZZ)
KAB5002 201 (Sharp code: QFS-L2016XHZZ)
CNRTH
CNOUT2
CONTROL PWB
CNPW
CNCIS
CNOUT1
(TOP SIDE)
F4
F8
CNSCM
F3
CNIU
CNPN
CNFRT
CNORG
CNHPS
CNSP
CNUSB
6.1. Ringer
Like a telephone, the machine will ring to alert you when a call comes in. To adjust the volume of the ringer or turn it off, follow the steps below.
6.2. Alarm volume
The machine sounds a three-beep alarm to alert you when an error occurs during fax transmission or reception. To adjust the volume of the alarm or turn it off, follow the steps below.
1 Make sure that the date and time
display of fax mode appears (if needed
FAX
press ) and then press .
MENU
2 Press .
3 Press (Press in Russia and
Poland).
4 Press a number key to select the
desired volume setting:
:HIGH
:LOW
:OFF
Display:
FAX SETTING
1: DATE&TIME SET
1: HIGH
The display briefly shows your selection, then:
1: DATE&TIME SET
5 Press repeatedly to exit.
2 – 6
AM-400DE
Press
, and
the
following
display will appear.
MENU
9 8
6
M/C Ver:TE53
(Diag•specifications)
MENU
9 8 6
ENTER SINGLE PRINT
ENTER CONTINUOUS PRINT
ENTER
COPY AGING
ENTER
LIFE MODE
ENTER
TOP VOID ADJUST
ENTER
PRINT ADJUST
ENTER
TEST MODE
START
START
ENTER
Then press the
key. Select the desired item with the
key and the key or select with the rapid key.
Enter the mode with the key.
PRINT DIAG MODE
: PRINTER ROM version
M/C Ver:TE53
(The alternate display of two screens.)
MEMORY CLEAR
1:CLEAR
[1]Key
[2]Key
Stand-by display

[2] Diagnostics and service soft switches

1. Entering the diagnostic mode

1.1. Fax diagnosis
This diagnosis is concerned with the main body of fax which is used for production and service support.
Entering the diagnostic mode
1.2. Print diagnosis
This diagnosis is concerned with the print which is used for production and service support.
Entering the diagnostic mode
Press
MENU
9 8
display will appear.
TE37 / x x x x (AM-400DE) or
TE44 / x x x x (AM-400IT) or
TE42 / x x x x (AM-400H)
Then press the
START
TE39 / x x x x (AM-400F) or
TE48 / x x x x (AM-400SE) or
: FAX ROM version
xxxx:Checksum
key. Select the desired item with the
and the key or select with the rapid key.
Enter the mode with the
(Diag
specifications)
9 8 7
MENU
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER key.
DIAG MODE COUNTRY NAME
SOFT SWITCH MODE
ROM & RAM CHECK
PANEL CHECK MODE
CHECK PATTERN MODE
SIGNAL SEND MODE 1
SIGNAL SEND MODE 2
TE37 / x x x x or TE39 / x x x x or TE44 / x x x x or TE48 / x x x x or TE42 / x x x x
(The alternate display of three screens.)
START
7
,and
the
following
key
Memory clear when power is turned on
Pressing the START and STOP keys, turn on the main power, and the following message will be indicated.
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
MEMORY CLEAR
CIS ADJUSTING MODE
DIAL TEST MODE
AUTO FEEDER MODE
FLASH MEMORY TEST
GEAR CHANGE MODE
FLATBED AGING
MESSAGE PRINT (AM-400DE/F/IT/SE only)
MEMORY CLEARING
When 1 is selected, the memory will be cleared to be ready to opera­tion.
If 2 is selected, memory will not be cleared and the machine enters standby mode.
2 – 7

2. Diagnostic items description

ROM& RAM CHECK
ROM = RAM=
Start checking
by pressing [ENTER] key
ROM=OK,RAM =OK
PRINTING
ALL KEY OK !!
2.1. Fax diagnosis
2.1.1 Soft switch mode
In this mode, the soft switches are set and the soft switch list is printed.
1. Operation
Soft switch mode screen
SOFTSWITCH MODE
[ENTER] Key
SW01=01010010
Switch No.
2. Switch number selection and data setting
1) Enter two digits of a soft switch number to set the switch num-
ber. Of a switch number of non-existing soft switch is entered, key error buzzer sounds to reject the input.
SW01=01010010
cursor position
2) Press [ENTER] key for setting of the next soft switch.
12345678:DataNo.
SW01 =
[1]key
SW16=01010010
[ 6] key
AM-400DE
5. Storage of data
In the following cases, the data if the soft switches set will be stored.
• It is shifted to set the next soft switch by pressing [ENTER] key.
• It is shifted to set the next soft switch with the [>] key.
• It is shifted to the last soft switch with the [<] key.
• It is shifted to set another soft switch by inputting two digits as the switch number.
• Output of the soft switch list starts.
6. Protocol monitor
If the SW No. 8 Data No. 5 is set to 1, the protocol monitor result is printed after fax communication.
2.1.2 ROM & RAM check
To check the sum value of Firmware or RAM.
No. Device Alarm Buzzer Remarks
1
2 D-RAM1(*1) 2 times <Short
*1 WORK MEMORY (SDRAM 16M).
1. Display
ROM (PROGRAM FLASH)
Main
1 time <Short sound>
sounds>
SW01=01010010
cursor position
[ENTER]Key
SW02=01001100
SW03=01001100
[ENTER]Key
3) Data number selection
(a) Pressing [>] key moves the cursor to the right.
If the cursor is on data number 8, pressing [>] key shifts the cur­sor to data number 1 of the next switch number. If the switch number is the final, pressing [>] key will exit the soft switch mode.
SW01=01010010
cursor position
SW02=01001100
[>]Key
SW03=01001100
with the cursor on bit8 [>]Key
(b) Pressing [<] key moves the cursor to the left.
If the cursor is on data number 1, pressing [<] key shifts the cur­sor to data number 1 of the former switch number. If the switch number is 1, pressing [<] key do not move the cursor.
SW03 = 01010010
cursor po sition
SW03 = 0 1001100
cursor po sition
SW03=01001100
[<]Key
SW02=01001100
[<]Key
SW03=01001100
[<]Key
SW01=01001100
with the cursor on bit 1 [<]Key
3. Data setting
Press the [MENU] key, and the data to the position of the cursor will be reversed to 1 when it is 0, or to 0 when it is 1.
4. Outputting method of soft switch list
In the soft switch mode, press [QUALITY] key, and the soft switch list will be printed. If the recording paper runs out or is clogged, the key error buzzer will sound with the process not received.
2. Result printing
After checking, the results print starts.
2.1.3 Panel key test
This is used to check whether each key is normally operated or not. When the test is started, a LED will blink (1000ms cycle) for the LED test. During the test. After the test, the test result will be printed.
* When any numeric key is pressed during the panel test, the DTMF signal correspond to the key number is sent to the line. If another key is pressed the DTMF signal will stop. This function becomes valid by changing the value of soft switch. (Default: Disable)
1) Flow
Press any key except [STOP] key. At this time, the name of each key will be displayed every push of the key.
PANEL CHECK MODE
1
To finish this mode, press [STOP] key
PRESS EACH KEY
[ENTER] key
START
[START ]Key
Go to (a or b).
a) When all keys can be inputted, the following message will be dis­played.
Then the screen will be all displayed in blank (Refer to (2)) and the test result will be printed.
1
[1]Key
..... (oth er key)
2 – 8
AM-400DE
SIGNAL SEND2
CML ON
[ENTER]Key
V.34 33600bps
V.34 26400bps V.34 28800bps
[ENTER]Key
V.34 31200bps
V.34 24000bps V.34 21600bps
[ENTER]Key
V.34 19200bps
V.34 12000bps V.34 14400bps
[ENTER]Key
V.34 16800bps
V.34 9600bps
V.34 7200bps
[ENTER]Key
V.34 4800bps
V.34 2400bps
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
ANSam V.21 0 - 300bps
[ENTER]Key
[ENTER]Key
CIS ADJUST
[ENTER]Key
The motor will move to the specified position and the reading lamp is lit on.
1: COLOR
1 key
2: MONO
2 key
b) If any key skipped, the following message will be displayed.
KEY ERROR !!
A key name that is not pressed yet is displayed so that this test can be continued.
At that time, pressing the [STOP] key will exit this mode. And the result will be printed.
2) Black screen
2.1.4 Check pattern mode
The effective printing area frame is printed in the specified sheet size of the standard tray (Letter/Legal/A4).
1. Printing the pattern
Printing size depends on Paper Size setting in Common Setting.
2.1.6 Signal send mode 2
The specified signals about V.34 and V.8 mode transmitted in the fol­lowing sequence to check the modem.
1. Press the [ENTER] key, and no signals with the loop state starts.
[ 1] No signals (making the loop) [ 9] 16800bps (V.34) [ 2] 33600bps (V.34bis) [10] 14400bps (V.34) [ 3] 31200bps (V.34bis) [11] 12000bps (V.34) [ 4] 28800bps (V.34) [12] 9600bps (V.34) [ 5] 26400bps (V.34) [13] 7200bps (V.34) [ 6] 24000bps (V.34) [14] 4800bps (V.34) [ 7] 21600bps (V.34) [15] 2400bps (V.34) [ 8] 19200bps (V.34) [16] 0-300bps (V. 21)
[17] ANSam
CHECKP ATTERN
[ENTER]Key
NOW AGING
2.1.5 Signal send mode 1
The specified signals are transmitted in the following sequence to check the modem.
1. Press the [ENTER] key, and no signals with the loop state starts.
[ 1] No signals (making the loop) [ 9] 9600bps (V.29) [ 2] 4800bps (V.27ter) [10] 7200bps (V.29) [ 3] 14400bps (V.33) [11] 4800bps (V.27ter) [ 4] 12000bps (V.33) [12] 2400bps (V.27ter) [ 5] 14400bps (V.17) [13] 300Hz (FLAG) [ 6] 12000bps (V.17) [14] 2100Hz (CED) [ 7] 9600bps (V.17) [15] 1100Hz (CNG) [ 8] 7200bps (V.17)
SIGNAL SEND1
V.17 14400bps V.33 12000bps
[ENTER]Key
V.17 12000bps V.17 9600bps
V.27ter 4800bps V.29 7200bps
[ENTER]Key
V.27ter 2400bps
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
CML ON
FLAG (300bps)
2. Pressing the [ENTER] key during transmitting CNG signal, or pressing the [STOP] key will stop the output of signal and exit the mode.
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
V.27ter 4800bps
[ENTER]Key
V.33 14400bps
V.17 7200bps
[ENTER]Key
V.29 9600bps
2100 Hz (CED TONE)
[ENTER]Key
1100 Hz (CNG)
2. Pressing the [ENTER] key during transmitting ANSam signal, or pressing the [STOP] key will stop the output of signal and exit the mode.
2.1.7 Memory clear
Clear the backup memory including the soft switches, registration data. After executing this mode, the memory clear report is printed.
Note: The following data is not cleared. Values for Printer life including the adjusted value of printing void.
2.1.8 CIS adjusting mode
When the "color scan" or "monochrome scan" is selected in this mode, the scanner motor moves from its home position to the specified value. Then, the document reading lamp is turned on.
1. Press the [STOP] key to exit the mode.
2 – 9
2.1.9 Dial test mode
GEAR CHARGE MODE
ADF : COUNT = 00001
FBED : COUNT = 00001
ADF : COUNT = 00002
FBED : COUNT = 00002
[ENTER]Key
Drive the gear as Flatbed mode.
Move from Home Position to the reading direction. After pause, move to the reading position from ADF.
Drive the gear as ADF mode.
Pause and drive reversely.
Move from Home Position to the reading direction.
After pause, move to the reading position from ADF.
Pause and drive reversely.
This sequence will be terminated by pressing STOP key.
Drive the gear as ADF mode.
Drive the gear as Flatbed
Press STOP key to terminate this aging.
MOTOR AGING MODE
300 MONO
600 MONO
300 COLOR
600 COLOR
[ENTER]Key
[>] Key
[>] Key
[>] Key
Aging will start by pressing ENTER key.
The mode is used to inspect whether dialing is accurate in two kinds of dial modes or not. All data which can be dialed in this mode are auto­matically called up in both PB and DP mode.
When this mode is activated, the following operations will be automati­cally executed to their ends. Whenever the dialed content is right or not is judged with the external instrument which is connected to the line cable.
1. After pressing [ENTER] key, the CML relay is turned on, and the following numbers are dialed in the PB mode.
“1”, “2”, “3”, “4”, “5”, “6”, “7”, “8”, “9”, “ “, “0”, “#”
2. And the following numbers are dialed in the DP mode.
“1”, “5”, “9”, “0”
3. After dialing, the CML relay is turned off.
AM-400DE
2.1.12 Gear change mode
The gear to drive ADF and flatbed mechanism will be aging continu­ously and the number of switching will appear on the LCD.
1. Operation
DIAL TEST
123456789 #
[ENTER]Key
1590
2.1.10 Auto feeder mode
Inserting and discharging the document can check the auto feeder.
The information of document sensor (A4 sensor) and ORG sensor is displayed when the documents are inserted to the Auto Feeder.
1. Operation
AUTO FEEDER
[ENTER]Key
300 MONO
[>] Key
600 MONO
[>] Key
300 COLOR
[>] Key
600 COLOR
without documents
()
with documents
A4 (A4 )
2. Press [STOP] key to exit the mode.
2.1.11 Flash memory test
The Flash memory is checked.
No. Flash memory Alarm Buzzer Remarks
1 NOR-Flash 1 time <Long sound>
FLASHM EMORY
Note: If this is excessively repeated, it will shorten the life of the Flash memory.
NOW CHECKING
FLASH OK
[ENTER]Key
When an error occurs, the alarm will sound.
End
Go to Auto Feeder Mode
Feeding documents will start by pressing ENTER key.
A4 (A4 ORG)
2. Note
ADF and FLATBED counter will be 0 over 65535.
Press [STOP] key to exit the mode.
2.1.13 Flatbed aging
Scanner motor will be driven based on the motor speed for each reso­lution. By pressing the [>] key or the [<] key, you can select the motor speed preliminary.
1. Operation
2. Press [STOP] key to exit the mode.
2.1.14 Message print (AM-400DE/F/IT/SE only)
In this mode, all the message data, which are used for displaying indi­cation and list print are printed as a contrast table of the selected lan­guage and English.
2 – 10
AM-400DE
1
2
3
4
5
6
7
8
9

3. Print diagnosis

3.1. Single print
In this mode, a sheet with selected pattern is printed.
Printing size depends on Paper Size setting in Common Setting.
[>]Key
2: ALL WHITE
[>]Key
8: GENERAL CHART
[>]Key
[>]Key
3: ALL BLACK
[>]Key
4: AREA PATTERN
[>]Key
5: STRIPE PATTERN
[>]Key
6: H-TONEPATTERN
[>]Key
7: PHIL CHART
SINGLE PRINT
[ENTER]Key
1: CHECK PATTERN
[>]Key
11: IDBG CHART
[>]Key
10: SG CHRAT
[>]Key
9: 5% CHART
Select the desired pattern with the [>] key and [<] key and press the [ENTER] key.
1: Check Pattern : same as Figure 1 2: All White pat-
: Not printed tern 3: All Black pat-
: Printed with black within print area tern 4: Area pattern : Frame line is printed within print area 5: Stripe pattern : Lateral stripe (Black 2 lines and White 2 lines)
6: Halftone pat-
: same as Figure 3 tern
7: Phil chart : PHIL CHART pattern 8: General chart 9: 5 % chart 10: SG chart 11: IDBG chart
(a) Area pattern
It prints 30 mm long per a pattern.
1: Full Black pattern 2: Halftone 2 pattern (The Figure 2 is repeated.) 3: Halftone 1 pattern (The Figure 3 is repeated.) 4: Mesh point pat-
(The Figure 4 is repeated.) tern 5: Longitudinal stripe
(Black 2 dots and White 2 dots are repeated
in the line.) 2 pattern
6: Lateral stripe 2 pattern
7: Lateral stripe
(Black 2 lines and White 2 lines are
repeated.)
(Black 1 line and White 1 line are repeated.) 1 pattern
8: Full White pattern 9: Full Black pattern
Figure 1 Check Pattern
Figure 2 Halftone 2 Pattern
Figure 3 Halftone 1 Pattern
Figure 4 Mesh point Pattern
2 – 11
3.2. Continuous print
COPY AGING
[ENTER]Key
Start aging
CYCLE=000(s)
CYCLE=000(m)
Enter the cycle and press the [ENTER] key.
COUNT=0000(time)
Enter the counter and press the [ENTER] key.
PAGE=000(sheet)
Enter a number of pages and press the [ENTER] key.
[>]Key
LIFE MODE
[ENTER]Key
1: LIFE SETMODE
2: LIFE CLEAR
[>]Key
[ENTER]Key
0000000000
0000000000
0000000000
0000000000
[ENTER]Key
1: SCAN(ADF)
3: PRINT
4: DRUM
5: TONER PAGE
6: TONER DOTCOUNT
LIFE MODE
[ENTER]Key
[ENTER]Key
[ENTER]Key
[ENTER]Key
cursor position
[>]Key
[>]Key
[>]Key
[>]Key
[>]Key
0000000000
0000000000
2: SCAN(FB)
[ENTER]Key
[>]Key
This mode is used for print aging.
Select the desired pattern and input cycle, counter, pages for aging.
Printing size depends on Paper Size setting in Common Setting.
CONTINUOUS PRINT
[ENTER]Key
1: CHECK PATTERN
[>]Key
11: IDBG CHART
[>]Key
10: SG CHRAT
[>]Key
9: 5% CHART
Select the desired pattern with the [>]k ey and [<]key and press the [ENTER] key.
CYCLE=000(s)
Enter the cycle and press the [ENTER] key.
COUNT=0000(time)
Enter the counter and press the [ENTER] key.
PAGE=000(sheet)
Enter a number of pages and press the [ENTER] key.
Start aging
1. Printing pattern
1: Check Pattern : same as Figure 1 2: All White pat­tern 3: All Black pat­tern 4: Area pattern : Frame line is printed within print area 5: Stripe pattern : Lateral stripe (Black 2 lines and White 2 lines) 6: Halftone pat-
tern 7: Phil chart : PHIL CHART pattern 8: General pattern 9: 5 % chart 10: SG chart 11: IDBG chart
2. Printing interval [CYCLE]: The time from printing end to next print­ing start.
Input Range: 001 to 999 seconds or 001 to 999 minutes.
3. Repeat printing [COUNT]: The number of printing cycle.
Input Range: 0001 to 9999 times.
4. Printing pages [PAGE]: The printing pages in one cycle of printing.
Input Range: 001 to 999 pages.
2: ALL WHITE
[>]Key
8: GENERAL CHART
[>]Key
[>]Key
CYCLE=000(m)
3: ALL BLACK
[>]Key
4: AREA PATTERN
5: STRIP PATTERN
6: H-TONE PATTERN
7: PHIL CHART
[>]Key
: Not printed
: Printed with black within print area
: same as Figure 3
AM-400DE
3.3. Copy aging
This mode is used for COPY Aging. The document on the flatbed or ADF will be scanned at the beginning of each cycle and printed it. The meaning of “CYCLE”, “COUNT” and “PAGE” are same as the case “CONTINUOUS PRINT”.
Printing size depends on Paper Size setting in Common Setting.
[>]Key
[>]Key
[>]Key
[>]Key
3.4. Life mode
This mode is used to set the life counter of the printer and the counter of the scanner at desired values and to clear them.
3.4.1 Life set mode
The values of life counter can be set in this mode.
1. Enter life set mode.
2. The cursor blinks at the top data. Four counters can be selected. Select the desired counter and input the counter value of 10 digits using the numeric keys. Pressing the [ENTER] key changed the counter value.
Note: Toner page counter cannot be changed.
Caution: These counters are not cleared after memory clear mode
is executed. If it is necessary to execute the memory clear mode on repairing the PWB, these life counters should be set again at the same time.
2 – 12
TRAY TEMP.
ON temp.=190 deg
OFF temp.=190 deg
FEED temp.=190 deg
TIME=10(s)
[ENTER]Key
[>]Key
[>]Key
[>]Key
[>]Key
Input temperature using the numeric keys
Input temperature using the numeric keys
Input temperature using the numeric keys
Input temperature using the numeric keys
AM-400DE
3.4.2 Life clear mode
This mode is used for clearing life counters.
2: LIFE CLEAR
[ENTER]Key
1: LIFE CLEAR ALL
[>]Key
2: LIFE CLR EACH
[>]Key
(a) Life all clear
Press the [ENTER] key, and the life counters of the printer and the life counter of the scanner are set to 0.
Note: The value for Top void is not cleared.
(b) Life each clear
This mode is used to respectively clear the life counter of the printer and the counter of the scanner. Select the desired counter and press [ENTER] key.
Note: If “5: TONER” is executed, both “TONER PAGE” and “TONER DOTCOUNT” are cleared.
3.5. Top void adjust
This mode is used for adjusting the top margin for printing.
TOP VOID ADJUST
[ENTER]Key
1: PATTERN PRINT
3.5.1 Pattern print
For the print pattern, a graduation scale is printed on the leading edge of the paper with figures. Enter the smallest figure as a top void value.
3.5.2 Void setting
Enter a top void value.
Input range: [0 - 40]
3.6. Print adjust
This mode is used to set some values about the printer.
PRINT ADJUST
[ENTER]Key
FAN MD_TIME SET TRAY TEMP.
[>]Key
(a)[ENTER]Key
LI FE CLE AR
(b)[ENTER]Key
1: SCAN(ADF)
[>]Key
2: SCAN(FB)
[>]Key
3: PRINT
[>]Key
4: DRUM
[>]Key
5: TONER
[>]Key
[>]Key
2: VOID SETTING
[>]Key
PARAMETERLIST
[>]Key
[ENTER]Key
LI FE CLE AR
[ENTER]Key
LI FE CLE AR
[ENTER]Key
LI FE CLE AR
[ENTER]Key
LI FE CLE AR
[ENTER]Key
LI FE CLE AR
BYPASS TEMP.
[>] Key
FLICKER ADJUST
[>]Key
3.6.1 Fan MD time set
This mode is used to set the driving time of the fan motor after stop­ping the main motor.
[ENTER]Key
FAN MD_TIME SET
FAN MD_TIME( 02 )
Cursor position
• Default value: 02
• Input Range: MIN: 00, MAX: 63
• Unit: Minute
After entering the value, the Printer Adjust mode ends and the next mode is displayed.
3.6.2 Tray temp.
This mode is used to set the temperature of fixing when printing from the standard tray.
1. ON TEMP.
The temperature to start turning on the heater.
• Default value: 190
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
2. OFF TEMP.
The temperature to start turning off the heater.
• Default value: 190
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
3. FEED TEMP.
The temperature to start feeding the paper.
• Default value: 190
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
4. TIME
Warming up time after reaching the temperature that the printing can be done.
• Default value: 10
• Range: MIN: 10, MAX: 63
• Unit: Second
2 – 13
3.6.3 Bypass temp.
TEST MODE
[ENTER]Key
1: MOTOR AGING 2: CHARGER ADJUST
[>]Key
[>]Key
3: PAPER FEED
[>]Key
5: PRINT SIZE
[>]Key
4: COM TEST
[>]Key
1: MOTOR AGING
[ENTER]Key
HT 1: ON 2: OFF
MM_AGING: HT_ON
MM_AGING: HT_OFF
[1]Key
[2]Key
2: CHARGER ADJUST
[ENTER]Key
NOW ADJUSTING
3: PAPER FEED
[ENTER]Key
NOW AGING
This mode is used to set the temperature of fixing when printing from the bypass tray.
BYPASS TEMP.
[ENTER]Key
ON temp.=200 deg
[>]Key
OFF temp.=200 deg
[>]Key
FEED temp.=200 deg
[>]Key
TIME=10(s)
[>]Key
Input temperature using the numeric keys
Input temperature using the numeric keys
Input temperature using the numeric keys
Input temperature using the numeric keys
1. ON TEMP.
The temperature to start turning on the heater.
• Default value: 200
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
2. OFF TEMP.
The temperature to start turning off the heater.
• Default value: 200
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
3. FEED TEMP.
The temperature to start feeding the paper.
• Default value: 200
• Range: MIN: 170, MAX: 233
• Unit: Centigrade
4. TIME
Warming up time after reaching the temperature that the printing can be done.
• Default value: 10
• Range: MIN: 10, MAX: 63
• Unit: Second
3.6.4 Flicker adjust
This mode is specified the number of table for the countermeasures of “FLICKER”.
[ENT ER]K ey
FLICKER ADJUST
FLICKER NO.=06
AM-400DE
3.7. Test mode
This mode is used for printer aging on the two modes.
3.7.1 Motor aging
1. The motor aging starts with heater on or with heater off.
2. To exit the aging, press [STOP] key.
3.7.2 Charger adjust
This mode is used to check the high-pressure control.
1. Operation
1. Press the [ENTER] key to operate the mode.
2. Press the [STOP] key to exit this mode.
3.7.3 Paper feed
This mode is used to check Mechanical Controller in the High speed mode.
Note: This mode is not used actual printing.
1. Operation
1. Press the [ENTER] key to operate the mode.
2. Press the [STOP] key to exit this mode.
• Default value: 06
• Input Range: MIN: 00, MAX: 63
• Unit: -
3.6.5 Parameter list
Printing the parameter for fixing.
PARAMETER LIST
[ENT ER]K ey
PRINTING
2 – 14
AM-400DE
Enter paper size on bypass tray with numeric key and press the [ENTER] key.
PRINT SIZE
Press [ENTER]Key
SIZE=215. 9x279. 4
3.7.4 COM test mode
You can check the communication between the main CPU and the printer controller on this mode. Concretely, input the command number from the main CPU and can read the response from the printer control­ler.
1. Operation
4: COM TEST
[ENTER]Key
SR =
[>]Key
EC =
[>]Key
EEC , =
[>]Key
[>]Key
ESR =
(a) cursor position
1. Press the [ENTER] key to enter the mode.
2. Select the mode “SR”, “EC”, “EEC”, or “ESR” using the “<“ or the “>” key. The “>” key can be used to select the mode only when a cursor is in the position of (a).
3. Enter the value using the numeric keys.
“SR”, “EC”, “ESR”
Range MIN: 00, MAX: 31
“EEC”
Range MIN: 00, MAX: 63
4. Press the [STOP] key to exit this mode.
ex)[1],[ 2]Key
SR12 =01
ex)[1],[ 2]Key
EC12 =10
ex)[1],[ 2],[3],[4] Key
EEC12,34 = 80 13
ex)[1],[ 2]Key
ESR12 =15
3.7.5 Print size
This function is prepared for the function in the future. Now there is no meaning.
1. Operation

4. How to make soft switch setting

To enter the soft switch mode, press the following key entries in sequence.
Press
MENU
DATA No. 1 2 3 4 5 6 7 8
SW01=00000000
SW01=10000000
SW01=10000000
SW01=10000000
SW01=10000000
SW02=00000000
SW99=00000000
9 8 7 START
ENTER
Press MENU key.
Press key.
Press key.
Bit1 - 8 are set.
Press key during setting.
ENTER
Soft SW01 - SW99 are set.
To finish the settings halfway between SW01 and SW99, press the STOP key. In this case, the setting being done to the SW No. on display will be nullified while settings done to the preceding SW No. remain in effect.
When the QUALITY key is pressed, the contents of soft switches are printed.
The soft switch mode is terminated.
2 – 15

5. Soft switch description

5.1. Soft switch
AM-400DE
SW
NO.
SW1
DATA
NO.
Recall interval 0
1 2 3 4
Recall times 0
5 6 7 8
Memory retransmission
1
times
2 3 4
ITEM
Switch setting and function Initial setting
10DEFITSEH
Binary input
No. = 8 4 2 1
1234(DataNo.)
EX0101
eg. Recall interval is set 5 min.
Binary input
No.=8421
5678(DataNo.)
EX0010
eg. Recall times is set 2 times
Binary input
No.=8421
1 2 3 4 (Data No.)
EX0001
eg. Retransmission time set to 1 time.
Remarks
0
0
0
0
1
1
1
1
1 0 1
0 1 0
0 0 0 1
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
1
SW2
SW3
Memory retransmission
5
interval
6 7 8
Number of rings for auto-
1
receive (0: No ring receive)
2 3 4
COPY/FAX/SCAN mode 5 6
7 Receive mode AUTO MANUAL 1 1 1 1 1 8 Reserved 00000
No. 5 0 0 1 1 No. 6 0 1 0 1
COPY FAX SCAN SCAN
Binary input
No.=8421
5678(DataNo.)
EX0010
eg. Retransmission interval to 2 minutes.
Binary input
No.=8421
1234(DataNo.)
EX0001
eg. Number of rings for auto receive is set to 1.
0
0
0
0
0
0
1
1
1
1
0
0
0
0 0
0
0
0
1
1
000000000
0
0
0
0
0
0
0
0
1
1
0 1 0
0 0 0 1
0
0
0
0
2 – 16
AM-400DE
SW
NO.
SW4
SW5
SW6
SW7
SW8
DATA
NO.
1 Reserved 0000 0 2 Reserved 0000 0 3 Reserved 0000 0 4 Reserved 0000 0 5 Time display format 24 hours 12 hours-AM/PM 1 1 1 1 1 6 Date display format Month-Day-Year Day-Month-Year 0 0 0 0 0 7 Summer time (Daylight sav-
ing) 8 Flatbed document size of TX
mode
Alarm volume Off High Low Low
1 2
Ringer volume Off High Middle Low
3 4 5 Dial mode PULSE TONE 0 0 0 0 0 6 Header registration No Yes 0 0 0 0 0
Auto clear Off 30sec 60sec 120sec
7 8
Communication results print-
out
1 2 3
4 Automatic printing of activity
report 5 Printout of total time and total
number of pages on activity
report
Fax default resolution Stan-
6 7
8 Reserved 0000 0 1 ECM mode Off On 0 0 0 0 0 2 Reserved 0000 0 3 Header print Off On 0 0 0 0 0 4 Footer print On Off 0 0 0 0 0 5 Reserved 0000 0 6 Reserved 0000 0 7 MMR On Off 1 1 1 1 1 8MR On Off 11111 1 CIS transmission Off On 0 0 0 0 0 2 DIS receive acknowledge dur-
ing G3 transmission 3 Non-modulated carrier in V.29
transmission mode 4 CNG send when manual TX On Off 1 1 1 1 1 5 Protocol monitor On Off 0 0 0 0 0 6 Signal monitor On Off 0 0 0 0 0 7 Reserved 0000 0 8 Reserved 1111 1
ITEM
No Yes 0 0 0 0 1
LETTER A4 0 0 0 0 0
No. 10011 No. 20101
No. 30011 No. 40101
No. 70011 No. 80101
No. 100011 No. 200101 No. 310000
Yes (When memory full) No (1st data is cleared
Off On 0 0 0 0 0
No. 6001 No. 7010
Twice Once in NSF reception,
On Off 0 0 0 0 1
Switch setting and function Initial setting
10DEFITSEH
101010101
111111111
101010101
Printed at error
only
dard
At
error/
timer
FINE S-FINE
Send
only
when memory full)
twice in DIS reception
Never
prints
Always
prints
0
0
0
1
1 0000 0
000000000
0000 0
0
0
1
1
0
0
0
Remarks
0
1
0
0 0 1
0
2 – 17
AM-400DE
SW
NO.
SW9
SW10
SW11
SW12
DATA
NO.
1 Action when RTN received Handle to no error Handle to error 0 0 0 0 1 2 Reserved 00000 3 Reserved 00000 4 Reserved 11111 5 Reserved 00000 6 V.34 mode function in case
of manual communication 7 V.34 mode function On Off 1 1 1 1 1 8 V.34 control channel com-
munication speed
Modem speed No. 1 No.2 No. 3 No. 4
1 2 3 4
Reception speed fixed No V.17-
5 6
Compromised equalizer 0Km 1.8Km 3.6Km 7.2Km
7 8
CED tone signal interval 75ms 500ms 750ms 1000ms
1 2
EOL detection timer 13sec 25sec 5sec 5sec
3 4
Processing of DIS reception
after DIS transmission
5 6 7 Reserved 00000 8 Reserved 00000
Signal transmission level 0
1 2 3 4 5
ITEM
On Off 1 1 1 1 1
2400bps 1200bps 0 0 0 0 0
V.33 14400bps 0 1 0 0 V.33 12000bps 0 1 1 0 V.17 14400bps 1 0 0 0 V.17 12000bps 1 0 1 0
V.17 9600bps 1 0 0 1 V.17 7200bps 1 0 1 1 V.29 9600bps 0 0 0 1
V.29 7200bps 0 0 1 1 V.27ter 4800bps 0 0 1 0 V.27ter 2400bps 0 0 0 0
No. 50101 No. 60110
No. 70011 No. 80101
No. 10011 No. 20101
No. 30011 No. 40101
No. 50011 No. 60101
Switch setting and function Initial setting
10DEFITSEH
1
1
1
1
0
0
0
0
0
0
0
V.29-
14400
BPS
Com­mand
retrans-
mitting
No.= 168421
EX0 1011
eg. Signal transmission level is set to -10dBm
A line is
cut
Binary input
1 2 3 4 5 (Data No.)
9600
BPS
Apply to
T. 30
V.27 ter-
4800
T.30 +
alpha
BPS
0
0
0
000000000
000000000
00000
000000000
000000000
0 1
1
0
0
1
1
1
1
0
0
000
0
0
0
1
1
0
0
1
1
1
1
Remarks
1 0 0 0
0
0
0
0
0
0 1 0 1 1
6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
2 – 18
AM-400DE
SW
NO.
SW13
SW14
DATA
NO.
DTMF output level (High) 1
1 2 3 4 5
6 Reserved 000 00 7 Reserved 000 00 8 Reserved 000 00
DTMF output level (Low) 1
1 2 3 4 5
6 Reserved 000 00 7 Reserved 000 00 8 Reserved 000 00
V.34 mode transmission
1
speed
2 3 4
ITEM
Switch setting and function Initial setting
10DEFITSEH
1
1
Binary input
No.= 168421
1 2 3 4 5 (Data No.)
EX1 0001 eg. Signal transmission level is set to -10dBm
Binary input
No.= 168421
1 2 3 4 5 (Data No.)
EX1 0110 eg. Signal transmission level is set to -10dBm
Sending speed = 2400(bps) x n
Example:
2400(bps) x 12 = 28800(bps)
2400(bps) is set for N=0. 33600(bps) is set for N=15.
1 0
0
0
0
0
0
1
1
1 0
0
1
1
1
1
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
1
1
1
1
1
1
0
0
Remarks
1 0 0 0 1
1 0 1 1 0
1 1 1 0
SW15
SW16
SW17
1
V.34 mode receiving speed 1
5 6 7 8
1 Reserved 000 00 2 Reserved 000 00 3 Reserved 000 00 4 Reserved 110 00 5 Reserved 000 00 6 Reserved 000 00 7 Reserved 010 00 8 Reserved 000 00
Delay time before line con­nect auto dial
1 2
Delay timer after line con­nect auto dial
3 4
Calling time 45s 90s 55s
5 6
CNG timing 3.5s 1.5s 3.0s
7 8
Receving speed = 2400(bps) x n
Example:
2400(bps) x 12 = 28800(bps)
2400(bps) is set for N=0. 33600(bps) is set for N=15.
0s 1.5s 3.0s No. 1 0 0 1 No. 2 0 1 0
1.7s 3.0s 3.6s 4.0s No. 3 0 0 1 1 No. 4 0 1 0 1
No. 5 0 0 1 No. 6 0 1 0
No. 7 0 0 1 No. 8 0 1 0
1 1
1
1
1
0
0
010101010
111111111
010101010
010101010
1 1
1
1
1
0
0
1 1 1 0
1
1
1
1
2 – 19
AM-400DE
SW
NO.
SW18
SW19
SW20
SW21
DATA
NO.
1 Key push sound On Off 1 1 1 1 1 2 Line monitor type Fax and Dial dial only 0 0 0 0 0 3 Pause time 4sec 2sec 1 1 1 1 1 4 Ringing Display (if ringer vol-
ume is OFF)
5 Dial tone detection (before
autodial)
6 Busy tone detection (after
autodial) 7 Reserved 000 00 8 Line monitor On Off 0 0 0 0 0
CI signal frequency No. 1 No.2 No. 3 No. 4
1 2 3 4
CI signal OFF detect enable
time
5 6 7 8 Method of detecting CI fre-
quency 1 Pulse Format of D.P. N+1 N 0 0 0 1 0
Inter digit pause time 800ms 840ms 880ms 900ms 1000ms
2 3 4
5 Pulse Mark/Break Ratio 40/60 33/67 1 0 1 1 0 6 The change to DB from DP
by ( ) 7 Reserved 000 00 8 Reserved 000 00 1 Reserved 111 11 2 DTMF sending by panel test
mode
Number of busy tone pulse
detection
3 4
5 Reserved 000 00 6 Reserved 111 11 7 Reserved 000 00 8 Reserved 111 11
ITEM
On Off 1 1 1 1 1
On Off 0 0 0 0 0
On Off 0 0 0 0 0
11.6-76.9 0 0 0 0
14.0-76.9 0 0 0 1
14.5-76.9 0 0 1 0
15.5-76.9 0 0 1 1
20.0-58.8 0 1 0 0
20.0-66.6 0 1 0 1
19.6-76.9 0 1 1 0
25.0-58.8 0 1 1 1
35.0-76.9 1 0 0 0
200ms 0 0 0 300ms 0 0 1 350ms 0 1 0 400ms 0 1 1 500ms 1 0 0 700ms 1 0 1
1200ms 1 1 0
Not used 1 1 1
Modem FW 0 0 0 0 0
No. 200001 No. 300110 No. 401010
Yes N o 1 1 1 1 1
Yes N o 0 0 0 0 0
No. 3 0 0 1 1 No. 4 0 1 0 1
Switch setting and function Initial setting
10DEFITSEH
0
0
0
No. 5No. 6No. 7
2pulse 4pulse 6pulse 8pulse
0
0
0
0
0
0
0
1
1
0
0
1
1
0
1
1
0
1
0
000000000
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
0
Remarks
0 0 0 0
1 0 1
0 0 0
0
2 – 20
AM-400DE
SW NO.
SW22
SW23
SW24
SW25
SW26
DATA
NO.
1 Print mode when printer life
over
2 Print mode when drum life
over 3 Print mode when toner empty Continue Stop 0 0 0 0 0 4 Print mode when toner
unsuitable 5 Print mode when paper size
error 6 Print mode when paper tray
removed 7 Reserved 11111 8 Reserved 11111
Paper size at tray Letter A4 Legal N/A
1 2 3 4
Fan time after printing 10min. 20min. 30min. 5min.
5 6
7 Reserved 00000 8 Reserved 00000 1 Automatic reduce of receive 100% Auto reduce 0 0 0 0 0 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
Copy default content type 1 2
Copy default quality 3 4
Copy default center contrast
(for TEXT)
5 6
Copy default center contrast
(for PHOTO)
7 8
Speaker volume 1 2 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
ITEM
Continue Stop 1 1 1 1 1
Continue Stop 1 1 1 1 1
Continue Stop 0 0 0 0 0
Continue Stop 1 1 1 1 1
Continue Stop 0 0 0 0 0
No. 1 0 0 0 x No. 2 0 0 0 x No. 3 0 0 1 x No. 4 0 1 0 x
No. 5 0 0 1 1 No. 6 0 1 0 1
No. 1 0 1 No. 2 0 0
No. 3 0 1 No. 4 0 1
No. 5 0 0 1 1 No. 6 0 1 0 1
No. 7 0 0 1 1 No. 8 0 1 0 1
No. 1 0 0 1 1 No. 2 0 1 0 1
Switch setting and function Initial setting
10DEFITSEH
0
0
0
0
0
0
0
0
0
0
0
Text Photo
300 600
Dark Normal Light Normal
Dark Normal Light Normal
Low Middle High Low
0
1
1
000000000
000000000
000000000
010101010
000000000
000000000
1
1
Remarks
0 0 0 1
0
0
0
1
0
0
2 – 21
AM-400DE
SW NO.
SW27
SW28
SW29
SW30
SW31
SW32
DATA
NO.
Fax default center contrast No. 1 No. 2
1 2 3 Reserved 00000
Copy default contrast No. 4 No. 5 No. 6
4 5 6
7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 11111 5 Reserved 00001 6 Reserved 00000 7 Reserved 00001 8 Reserved 00000 1 Reserved 00001 2 Reserved 11110 3 Reserved 11110 4 Reserved 00001 5 Reserved 11110 6 Reserved 11110 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 USB high speed setting Disable Enable 0 0 0 0 0 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 11111 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 11111 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
ITEM
Darker 0 0
Dark 0 0
Normal 0 1
Light 0 1 Lighter 1 0 Normal Other setting
Darker000
Dark001 Normal010
Light 0 1 1 Lighter 1 0 0
Lightest 1 1 0 Darkest101
Normal Other setting
Switch setting and function Initial setting
10DEFITSEH
010101010
0
0
0
0
1
1
1
1
0
0
00000
0
0
Remarks
1
0 1 0
2 – 22
AM-400DE
SW NO.
SW33
SW34
SW35
SW36
SW37
SW38
SW39
DATA
NO.
1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
ITEM
Switch setting and function Initial setting
10DEFITSEH
00000
Remarks
2 – 23
AM-400DE
SW NO.
SW40
SW41
SW42
SW43
SW44
SW45
SW46
DATA
NO.
1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
ITEM
Switch setting and function Initial setting
10DEFITSEH
00000
Remarks
2 – 24
AM-400DE
SW NO.
SW47
SW48
SW49
SW50
l
SW99
DATA
NO.
1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000 1 Reserved 00000 2 Reserved 00000 3 Reserved 00000 4 Reserved 00000 5 Reserved 00000 6 Reserved 00000 7 Reserved 00000 8 Reserved 00000
ITEM
Switch setting and function Initial setting
10DEFITSEH
Remarks
2 – 25
5.2. Soft switch function description

SW1 No. 1 ~ No. 4 Recall interval

Choice is made for a recall interval for speed and rapid dial numbers. Use a binary number to program this. If set to 0 accidentally, 1 will be assumed.
SW1 No. 5 ~ No. 8 Recall times
Choice is made as to how many recall times should be made. Use a
binary number to program this.
SW2 No. 1 ~ No. 4 Memory retransmission times
The number of memory retransmissions is set.
SW2 No. 5 ~ No. 8 Memory retransmission interval
The interval between memory retransmissions is set.
SW3 No. 1 ~ No. 4 Number of rings for auto-receive (0: No ring receive)
When the machine is set in the auto receive mode, the number of rings before answering can be selected. It may be set from one to nine rings using a binary number. If the soft switch was set to 1, a direct connec­tion is made to the facsimile. If it was set to 0 accidentally, receive ring is set to 1. If it was above 9, receive rings are set to 9.
SW3 No.5, No.6 COPY/FAX/SCAN mode
An operation mode for each copy, fax, or PC scan is set.
SW-3 No. 7 Receive mode
Auto/extension telephone receiving mode is set.
SW-3 No. 8 Reserved
Set to “0”.
SW-4 No. 1 ~ No. 4 Reserved
Set to “0”.
SW4 No. 5 Time display format
When this switch is set to "0", time is displayed in 12-hour system.
When set to "1", 24-hour system.
SW4 No. 6 Date display format
Used to select date display/print formats.
0: DAY-Month-Year
1: Month-Day-Year
SW4 No. 7 Summer time (Daylight saving)
The daylight saving function ON/OFF is set.
SW4 No. 8 Flatbed document size of TX mode
Used to set a document scan length for fax transmission from the flat­bed.
SW5 No. 1, No. 2 Alarm volume
Used to set volume of the end buzzer or error buzzer for facsimile transmission/reception.
SW5 No. 3, No. 4 Ringer volume
Ringer volume:
The calling sound volume of CI signal receiving is set.
SW5 No. 5 Dial mode
Switch the type according to the telephone circuit connected to the facsimile.
0: PULSE DIAL
1: TONE DIAL
SW5 No. 6 Header registration
When setting this switch to "1", registering senders is protected.
AM-400DE
SW5 No. 7, No. 8 Auto Clear
Used to set the retention time for the copy settings. After the specified auto clear time elapses, the default settings return.
SW6 No. 1 ~ No. 3 Communication results printout
It is possible to obtain communication results after each transaction. Normally, the switch is set (No. 1: 0, No. 2: 0, No. 3: 1) so that the communication result is produced only a communication error is encountered.
If No. 1 was set to 1, No. 2 was set to 1 and No. 3 was set to 0, the communication result will be produced every time a communication is done, even if the communication was successful. If No. 1 was set to 0, No. 2 to 1 and No. 3 to 0, the communication result will be produced every transmission. Setting No. 1 to 1 No. 2 to 0 and No. 3 to 0 will dis­able this function. No transaction report will be printed. If No. 1 was set to 0, No. 2 to 0 and No. 3 to 0, the communication result is produced only after a timer and memory transmission or when a communication error is encountered.
SW6 No. 4 Automatic printing of activity report
This soft switch is used to select; whether or not to produce the activity report when the memory is full (about 30 items). An activity report can be produced from Report&List mode.
After producing the activity report, all the data in the memory will be cleared. When the switch function is set to "0" (NO), the data in mem­ory will be deleted from the oldest as it reaches the maximum memory capacity (approx. 30 items).
SW6 No. 5 Print out total time and total number of pages on activ­ity report
Used to print out the total communication time and the total pages sent/received on the activity report.
SW6 No. 6, No. 7 Fax default resolution
Used to set the transmission mode which is automatically selected when the QUALITY key is not pressed. In the copy mode, however, the fine mode is automatically selected unless the QUALITY key is manually set to another mode.
SW6 No. 8 Reserved
Set to "0".
SW7 No. 1 ECM mode
Used to determine ECM mode function.
SW7 No. 2 Reserved
Set to "0".
SW7 No. 3 Header print
When it is set at 0, sender’s name, sending page number and so on are automatically printed in the recording paper on the receiving side during transmission. Thus, the sender can be known on the receiving side.
0: Applied.
1: Not applied.
SW7 No. 4 Footer print
When set to "1", the date of reception, the sender machine No., and the page No. are automatically recorded at the end of reception.
SW7 No. 5, No.6 Reserved
Set to "0".
SW7 No. 7 MMR
MMR (Modified MR) selects presence of the compression function.
SW7 No. 8 MR
MR (Modified READ) selects presence of the compression function.
2 – 26
AM-400DE
SW8 No.1 CSI transmission
CSI signal contains the sender’s phone number registered in the machine. If this switch is set to "1", no sender’s name will be printed at the receiving side.
SW8 No. 2 DIS receive acknowledge during G3 transmission
Used to make a choice of whether reception of NSF (DIS) is acknowl­edged after receiving two NSFs (DISs) or receiving one NSF (two DISs). It may be useful for overseas communication to avoid an echo suppression problem, if set to 1.
SW8 No. 3 Non-modulated carrier in V.29 transmission mode
Though transmission of a non-modulated carrier is not required for transmission by the V29 modem according to the CCITT Recommen­dation, it may be permitted to send a non-modulated carrier before the image signal to avoid an echo suppression problem. It may be useful for overseas communication to avoid an echo suppression problem, if set to 1.
SW8 No. 4 CNG send when manual TX
CNG signal sending ON/OFF in case of manual transmission is set.
SW8 No. 5 Protocol monitor
Normally set to "0". If set to "1", communication can be checked, in case of troubles, without using a G3 tester or other tools. When com­munication FSK data transmission or reception is made, the data is taken into buffer. When communication is finished, the data analyzed and printed out. When data is received with the line monitor (SW7-No.
7) set to "1" the reception level is also printed out.
SW8 No. 6 Signal monitor
Normally set to "0". If set to "1", the transmission speed and the recep­tion level are displayed on the LCD. Used for line tests.
SW8 No. 7 Reserved
Set to "0".
SW8 No.8 Reserved
Set to "1".
SW9 No.1 Action when RTN received
The operation is set when the RTN signal is received in the G3 trans­mission mode.
SW9 No. 2, No.3 Reserved
Set to "0".
SW9 No. 4 Reserved
Set to "1".
SW9 No. 5 Reserved
Set to "0".
SW9 No. 6 V.34 mode function in case of manual communication
Used to select whether the V.34 mode is made valid when automati­cally transmitting/receiving.
SW9 No. 7 V.34 mode function
Used to select the V.34 mode for communication when set to “1” com­munication method is V.34 mode.
SW9 No. 8 V.34 control channel communication speed
Used to select the control channel communication speed for V.34 mode.
SW10 No. 1 ~ No. 4 Modem speed
Used to determine the initial modem speed. The default is 14400BPS(V.17). It may be necessary to program it to a slower speed when frequent line fallback is encountered, in order to save the time required for the fallback procedure.
SW10 No. 5, No. 6 Reception speed fixed
The transferable speed of modem in the receiving mode is set.
SW10 No. 7, No. 8 Compromised equalizer
The specific line equalizer is inserted.
No. 1 No. 2
0 0: The line equalizer built in the modem is turned off.
0 1: Line equalizer corresponding to 1.8 km.
1 0: Line equalizer corresponding to 3.6 km.
0 1: Line equalizer corresponding to 7.2 km.
SW11 No. 1, No. 2 CED tone signal interval
For international communication, the 2100Hz CED tone may act as an echo suppressor switch, causing a communication problem. Though this soft switch is normally set to "0", it should be set to "1" so as to change the time between CED tone and DIS signal from 75ms to 500ms to eliminate the communication problem caused by echo.
SW11 No. 3, No. 4 EOL detection timer
Used to make a choice of whether to use the 25-second or 13-second timer for detection of End of line This is effective to override communi­cation failures with some facsimile models that have longer End of line detection.
SW11 No. 5, No. 6 Processing of DIS reception after DIS transmis­sion
When receiving, operation in case of DIS reception after DIS transmis­sion is selected. Retransmitting command: To retransmit DIS in disre­gard of DIS reception.
Breaking circuit: To break circuit instantly. (Abnormal finish)
T. 30: To operate in accordance with T. 30.
T. 30+<: To operate in accordance with T. 30+<. (To operate differently according to cases.)
SW11 No. 7, No.8 Reserved
Set to "0".
SW12 No. 1 ~ No. 5 Signal transmission level
Used to control the signal transmission level in the range of -0dB to ­31dB.
SW12 No. 6 ~ No.8 Reserved
Set to "0".
SW13 No. 1 ~ No. 5 DTMF output level (High)
To set the level to output high group DTMF signals. -15 to 0 dBm (0.5 dBm unit)
SW13 No. 6 ~ No. 8 Reserved
Set to "0".
SW14 No. 1 ~ No. 5 DTMF output level (Low)
To set the level to output low group DTMF signals. -15 to 0 dBm (0.5 dBm unit)
SW14 No. 6 ~ No. 8 Reserved
Set to "0".
SW15 No. 1 ~ No. 4 V.34 mode transmission speed
Used to determine the initial modem speed when communication method is V.34 transmission mode.
SW15 No. 5 ~ No. 8 V.34 mode receiving speed
Used to determine the initial modem speed when communication method is V.34 reception mode.
SW16 No. 1 ~ No. 3 Reserved
Set to "0".
2 – 27
SW16 No. 4 Reserved (AM-400DE/IT)
Set to "1".
SW16 No. 4 Reserved (AM-400F/SE/H)
Set to "0".
SW16 No. 5, No. 6 Reserved
Set to "0".
SW16 No. 7 Reserved (AM-400DE/IT/SE/H)
Set to "0".
SW16 No. 7 Reserved (AM-400F)
Set to "1".
SW16 No. 8 Reserved
Set to "0".
SW17 No. 1, No. 2 Delay timer before line connect in auto dial
Set a time period between start of dial operation and line connection in the auto dial mode.
SW17 No. 3, No. 4 Delay timer after line connect in auto dial
Set a time period between dial-up line connection and dial data trans­mission in the auto dial mode.
SW17 No. 5, No. 6 Calling time
Set the call time for dialing in the auto dial mode.
SW17 No. 7, No. 8 CNG timing
Set a time period between dialing in the auto dial mode and CNG sig­nal transmission.
SW18 No. 1 Key push sound
Used to toggle the key sound between on and off.
SW18 No. 2 Line monitor type
The time period to monitor the sound on the line is set.
0: From the start of dialing, and until the call reaches receiving party
1: From the start of dialing to the end of the communication
SW18 No. 3 Pause time
The dial pause time is set.
SW18 No. 4 Ringing display (if ringer volume is OFF)
When set to “1” and ringer volume is OFF, “RINGING” display informs you that the CI signals are received.
SW18 No. 5 Dial tone detection (before auto dial)
When set to “1”, a number is dialed after detecting the dial tone.
SW18 No. 6 Busy tone detection (after auto dial)
When set to “1”, the busy tone is detected after dialing a number.
SW18 No. 7 Reserved
Set to "0".
SW18 No. 8 Line monitor
When set to “1”, sound on the line is monitored in transmission.
SW19 No.1 ~ No. 4 CI signal frequency
Used to set a frequency that is considered as the CI signal.
SW19 No. 5 ~ No. 7 CI signal OFF detect enable time
Used to set the maximum length of CI signal OFF time, which is used to determine a sequence of CI signals.
SW19 No. 8 Method of detecting CI frequency
CI frequency detection method is set.
AM-400DE
SW20 No. 1 Pulse format of D.P.
Used to set pulse format of D.P. mode.
SW20 No. 2 ~ No. 4 Inter digit pause time
Used to set the pause time between pulses
SW20 No. 5 Pulse Make/Break ratio.
Used to set pulse ratio of D.P. mode.
SW20 No. 6 The change to DB from DP by ( )
When setting to 1, the mode is changed by pressing the key from the pulse dial mode to the tone dial mode.
SW20 No. 7, No. 8 Reserved
Set to "0".
SW21 No. 1 Reserved
Set to "1".
SW21 No. 2 DTMF sending by panel test mode
With this switch set to “1”, the DTMF signal is sent when a numeric key is pressed in the panel test mode.
SW21 No. 3, No. 4 Busy tone detection pulse number
Used to set detection of Busy tone intermittent sounds.
SW21 No. 5 Reserved
Set to "0".
SW21 No. 6 Reserved
Set to "1".
SW21 No. 7 Reserved
Set to "0".
SW21 No. 8 Reserved
Set to "1".
SW22 No. 1 Print mode when printer life over
Used to set whether the printing operation stops or not when the PRINTER LIFE OVER error occurs.
SW22 No. 2 Print mode when drum life over
Used to set whether the printing operation stops or not when the DRUM LIFE OVER error occurs.
SW22 No. 3 Print mode when toner empty
Used to set whether the printing operation stops or not when the TONER EMPTY error occurs.
SW22 No. 4 Print mode when toner unsuitable
Used to set whether the printing operation stops or not when the TONER UNSUITABLE error occurs.
SW22 No. 5 Print mode when size error
Used to set whether the printing operation stops or not when the SIZE ERROR occurs.
SW22 No. 6 Print mode when paper tray removed
Used to set whether the printing operation stops or not when the PAPER TRAY REMOVED error occurs.
SW22 No. 7, No. 8 Reserved
Set to "1".
SW23 No. 1 ~ No. 4 Paper size at tray
The paper size in the tray is set.
SW23 No. 5, No. 6 Fan time after printing
Set the FAN rotation time for completed print operation.
2 – 28
AM-400DE
SW23 No. 7, No. 8 Reserved
Set to "0".
SW24 No. 1 Automatic reduce of receive
If set to 1, it is reduced automatically.
SW24 No. 2 ~ No. 8 Reserved
Set to "0".
SW25 No. 1, No. 2 Copy default content type
The default copy scanning quality is set.
SW25 No. 3, No. 4 Copy default quality
Copy scanning resolution is set.
SW25 No. 5, No. 6 Copy default center contrast (for TEXT)
When the copy scanning quality is set to the TEXT mode, this switch is used to set the reference contrast of the center value for the default contrast setting (SW27 No. 4 ~ No. 6).
SW25 No. 7, No. 8 Copy default center contrast (for PHOTO)
When the copy scanning quality is set to the PHOTO mode, this switch is used to set the reference contrast of the center value for the default contrast setting (SW27 No. 4 ~ No. 6).
SW26 No. 1, No. 2 Speaker volume
The line monitor volume is set.
SW26 No. 3 ~ No. 8 Reserved
Set to "0".
SW27 No. 1, No. 2 Fax default center contrast
Used to set the reference contrast of the center value for the fax con­trast setting.
SW27 No. 3 Reserved
Set to "0".
SW27 No. 4 ~ No. 6 Copy default contrast
The default is set in the copy contrast setting.
SW27 No. 7, No. 8 Reserved
Set to "0".
SW28 No. 1 ~ No. 3 Reserved
Set to "0".
SW28 No. 4 Reserved
Set to "1".
SW28 No. 5 Reserved (AM-400DE/F/IT/SE)
Set to "0".
SW28 No. 5 Reserved (AM-400H)
Set to "1".
SW28 No. 6 Reserved
Set to "0".
SW28 No. 7 Reserved (AM-400DE/F/IT/SE)
Set to "0".
SW28 No. 7 Reserved (AM-400H)
Set to "1".
SW28 No. 8 Reserved
Set to "0".
SW29 No. 1 Reserved (AM-400DE/F/IT/SE)
Set to "0".
SW29 No. 1 Reserved (AM-400H)
Set to "1".
SW29 No. 2, No. 3 Reserved (AM-400DE/F/IT/SE)
Set to "1".
SW29 No. 2, No. 3 Reserved (AM-400H)
Set to "0".
SW29 No. 4 Reserved (AM-400DE/F/IT/SE)
Set to "0".
SW29 No. 4 Reserved (AM-400H)
Set to "1".
SW29 No. 5, No. 6 Reserved (AM-400DE/F/IT/SE)
Set to "1".
SW29 No. 5, No. 6 Reserved (AM-400H)
Set to "0".
SW29 No. 7, No. 8 Reserved
Set to "0".
SW30 No. 1 ~ No. 8 Reserved
Set to "0".
SW31 No. 1 USB high speed setting
Used to set whether the USB high speed mode is activated or not.
SW31 No. 2 ~ No. 5 Reserved
Set to "0".
SW31 No. 6 Reserved
Set to "1".
SW31 No. 7, No. 8 Reserved
Set to "0".
SW32 No. 1 ~ No. 4 Reserved
Set to "0".
SW32 No. 5 Reserved
Set to "1".
SW32 No. 6 ~ No. 8 Reserved
Set to "0".
SW33 ~ SW99 No. 1 ~ No. 8 Reserved
Set to "0".
2 – 29

[3] Troubleshooting

p
Refer to the following actions to troubleshoot any of the problems mentioned in 1-4.
[1] A communication error occurs.
[2] Image distortion produced.
[3] Unable to do overseas communication.
[4] Communication speed slow due to FALLBACK.
• In crease the transmission level SOFT SWITCH 12-1, 2, 3, 4, 5. May be used in case [1] [2] [3].
• Decrease the transmission level SOFT SWITCH 12-1, 2, 3, 4, 5. May be used in case [3].
• Apply line equalization SOFT SWITCH 10-7, 8. May be used in case [1] [2] [3] [4].
TO: ATT: Ref.No. :
CC: ATT: Date :
FM: Dept :
***** Facsimile communication problem ***** Ref.No.:
Our customer Name Tel No.
Other party Name Tel N o .
Problem mode Line: Domestic / international Model: G3 Phase: A, B, C, D.
Frequency: % ROM version:
Confirmation item
Address Fax No.
Contact person Model name
Address Fax No. Contact person Model name
Reception / Transmission
Our customer
Automatic reception / Manual reception Automatic dialing / Manual dialing / Others
B1 B2
AM-400DE
• Slow down the transmission speed SOFT SWITCH 10-1, 2, 3, 4. May be used in case [2] [3].
• Replace the LIU PWB. May be used in all cases.
• Replace the control PWB. May be used in all cases.
• If transmission problems still exist on the machine, use the follow­ing format and check the related matters.
Sign :
Date:From: Mr. Fax Tel No.:
Other party
Please mark problem with an X. No problem is: 0.
A1 A2 B1 B2 C1 C2 D1 D2 E1 E2
A1 A2
Our service
Comment
Countermeasure
**** Please attach the G3 data and activity report on problem. ****
C1 D2
C2 D1
E1 E2
Other
arty's service
Transmission level setting is ( ) dB at our customer
Transmission level ( ) dBm Reception level ( ) dBm By level meter at B1 and B2
2 – 30
AM-400DE

[4] Error code table

1. Communication error code table

1.1. G3 Transmission
Code Final received signal Error Condition (Receiver side)
0 Incomplete signal frame Cannot recognize bit stream after flag 1 NSF, DIS Cannot recognize DCS signal by echo etc.
Cannot recognize NSS signal (FIF code etc.) 2 CFR Disconnects line during reception (carrier missing etc.) 3 FTT Disconnects line by fall back 4 MCF Disconnects line during reception of multi page
Cannot recognize NSS, DCS signal in the case of mode change 5 PIP or PIN The line is hung up without replying to telephone request from the receiving party.
6 RTN or RTP Cannot recognize NSS, DCS signal after transmit RTN or RTP signal. 7 No signal or DCN No response in receiver side or DCN signal received* (transmitter side) 8 - Owing to error in some page the error could not be corrected although the specified number of
11 - Error occurred after or while reception by the remote (receiving) machine was revealed to be
12 - Error occurred just after fallback. 13 - Error occurred after a response to retransmission end command was received.
1.2. G3 Reception
error retransmissions were attempted.
impossible.
Code Final received signal Error Condition (Receiver side)
0 Incomplete signal frame Cannot recognize bit stream after flag 1 NSS, DCS Cannot recognize CFR or FTT signal
Disconnects line during transmission (line error) 2 NSC, DTC Cannot recognize NSS signal (FIF code etc.) 3 EOP Cannot recognize MCF, PIP, PIN, RTN, RTP signal 4 EOM Cannot recognize MCF, PIP, PIN, RTN, RTP signal in the case of mode change 5 MPS The line is hung up without replying to communication request. 6 PR1-Q Cannot recognize PIP, PIN signal in the case of TALK request 7 No signal or DCN No response in transmitter (cannot recognize DIS signal) or DCN signal received* (receiver side) 8 - Error occurred upon completion of reception of all pages. 9 - Error occurred when mode was changed or Transmission/Reception switching was performed.
10 - Error occurred during partial page or physical page reception. 11 - Error occurred after or during inquiry from the remote (transmitting) machine as to whether recep-
tion is possible or not.
12 - Error occurred during or just after fallback. 13 - Error occurred after the retransmission end command was received.
1.3. Super G3 mode 1.4. <Reference> Details of E-29 ~ E31
Error Code Transmission Errors Reception Errors
E-16 Same as E-0 Same as E-0 E-17 Same as E-1 Same as E-1 E-18 Same as E-2 Same as E-2 E-19 - Same as E-8 E-20 Same as E-4 Same as E-9 E-21 - Same as E-10 E-22 - ­E-23 Same as E-7 Same as E-7 E-24 Same as E-8 ­E-25 Same as E-11 Same as E-11 E-26 Same as E-12 Same as E-12
E-27 Same as E-13 Same as E-13
E-28 - ­E-29 E-30 E-31
Error occurred during handshaking for super G3 mode
E-29 Handshaking error in V.8 negotiation procedure E-30 Handshaking error in V.34 line probing procedure E-31 Handshaking error in V.34 HDX training procedure
2 – 31
AM-400DE

CHAPTER 3. MECHANICAL DESCRIPTION

Service Manual
AM-400DE

[1] Mechanical description

1. Facsimile block

1.1. Document feed block and diagram
Rear plate
Front sensor
Document
Separation rubber plate
Exit pinch roller
Document
Exit roller
Feed roller
Separate spring
Transfer roller
Transfer pinch roller
ORG sensor
CIS
Fig. 1

2. Document feed operation

1) As shown in Fig.1, the document set in the hopper (the front sensor is on) is fed with the let out roller and paper feed roller which rotate together with the pulse motor.
2) When a specified number of pulses are received from the docu­ment sensor after the document lead edge is sensed, scanning will be started.
3) When a specified number of pulses are received from the docu­ment sensor after the document rear edge is sensed, scanning will be ended to discharge the document to the tray.
4) If the front sensor is on (the document is set up in the hopper), the next document is supplied and fed nearly when the last document is completely read and discharged. If the front sensor is off (no doc­ument is set up in the hopper), the drive will be stopped when the document is discharged to the tray.

3. Hopper mechanism

3.1. General view
Fig. 2
The hopper is used to align documents with the document guides adjusted to the paper width.
NOTE: Adjust the document guides before and after inserting the doc-
ument.
3.2. Automatic document feed
1) Use of the paper feed roller and separation rubber plate ensures error-free transport and separation of documents. The plate spring presses the document to the paper feed roller to assure smooth feeding of the document.
2) Document separation system:
Separation rubber plate/speed reduction ratio/roller backlash sepa­ration system
Feed roller
Separate spring
First document
Last document
Separation rubber plate
Separation plate
Fig. 3
3.3. Loading the documents
1) Make sure that the documents are of suitable size and thickness, and free from creases, folds, curls, wet glue, wet ink, clips, staples and pins.
2) Place documents face down in the hopper.
• Adjust the document guides to the document width.
• Align the top edge of documents and gently place them into the
hopper. The first page under the stack will be taken up by the feed roller to get ready for transmission.
NOTE: 1) Curled edge of documents, if any, must be straighten out.
2) Do not load the documents of different sizes and/or thick­nesses together.
3.4. Documents applicable for automatic feed
Product specifications
Indication Lower Limit Upper Limit Weight indication
Thickness indication Document size
Number of ADF sheets
Paper quality
NOTE: Double-side coated documents and documents on facsimile
Documents heavier than 80g/m duplicated on a copier to make it operative in the facsimile.
Metric system indication
Metric system indication Document size Range
Document size Weight
Kind Paper of fine quality/bond paper/
recording paper should be inserted manually.
2
2
52g/m
0.06mm 0.1mm
Minimum (148mm x 182mm) A4 (210mm x 297mm) Letter (216mm x 279mm) Legal (216mm x 356mm)
Minimum ~ Letter/A4 size 20sheets Legal 1 sheet
Kent paper
in terms of the paper weight must be
80g/m
2
3 – 1
AM-400DE

4. Paper path

Document input
Print exit
Paper(250 sheets)

5. Components layout

CIS
Document exit
Fusing unit
Optical unit (LSU)
Drum cartridge
Envelope
Toner cartridge
Fig. 4
11
1
2
13
12
3
4
10
5
9
8
7
6
Fig. 5
No. PARTS NAME No. PARTS NAME
1 Feed roller 8 Drum cartridge 2 Transfer roller 9 Optical unit (LSU) 3 Transfer pinch roller 10 Fusing unit 4 CIS 11 Document feeder tray 5 Output tray 12 Exit roller 6 PU roller assay 13 Exit pinch roller 7 Toner cartridge
3 – 2

6. Switch/Sensor layout

AM-400DE
2
1
10
9
8
7
11
14
12
6
5
Fig. 6
No. PARTS NAME TYPE DESCRIPTION
1 Front sensor Microcircuit When the document is set up in the hopper, the front sensor is on. 2 ORG sensor Microcircuit When the ORG sensor is on, the document is fed and scanning will be
started. 3 P-IN sensor Microcircuit When this switch is turned on, paper transport. 4 Bypass PE sensor Microcircuit When this switch is turned on, paper transport. 5 Inter lock switch Microcircuit Detects the opening or closing of the Right Cover. 6 PO2 sensor Microcircuit Detects when the paper is fed out. 7 Roller switch Microcircuit Detects when the Pickup Roller is home position. 8 Toner sensor Microcircuit Detects when the Toner Cartridge is set. 9 Home position sensor Microcircuit Detects when CIS is ADF scanning position.
10 Tray cover sensor Microcircuit Detects when the Paper Tray is set up. 11 PO1 sensor Photo transistor Detects when the paper is fed out. 12 Temperature fuse 216°C Thermal fuse When the heat roller temperature rises abnormally, this fuse cuts off the
power relay power line (+24 V line).
13 Temperature fuse 152°C Thermal fuse When the heat roller temperature rises abnormally, this fuse cuts off the
heater lamp power line.
14 Thermistor Thermistor Detects the temperature on the heat roller.
4
13
3
3 – 3
AM-400DE

7. Scanner drive block and diagram

7.1. Overall layout
Drive switching unit
7.2. Gear layout
System gear
Gear
Lever
Pin
Sheet scan drive side gear train
Planet gear A
Scanner unit
A
Hold lever
Hold rib
Home position sensor
Motor gear (drive source)
Scan unit drive side gear train
Planet gear B
System gear biasing spring
System gear
Drive belt
Scan unit locking lever
3 – 4
7.3. Fixed scan mode
AM-400DE
Scan unit drive side gear train
Planet gear B
7.4. Sheet scan mode
Sheet scan drive side gear train
Planet gear A
System gear biasing spring
Motor gear
(drive source)
Counterclockwise rotation: The scanner unit moves toward the sheet scan position.
(Clockwise rotation: The scanner unit moves toward the fixed scan position.)
System gear
Scan unit locking lever
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Locking rib
System gear biasing spring
(Scanner unit)
Motor gear (drive source)
Counterclockwise rotation: Sheets are fed to the sheet scan section.
System gear
Scan unit locking lever
3 – 5
AM-400DE
7.5. Switching operation (1) from the sheet scan mode to the fixed scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Locking rib
System gear biasing spring
The planet gear A moves toward the scan unit drive side gear and stops at the intermediate position because the pin A on the planet gear A mounting arm is restricted its movement by the cam groove A. The planet gear B moves into engagement with the system gear so that the system gear rotates. Along with the rotation of the system gear, the scan unit locking lever starts rotating in the release direction.
(Scanner unit)
Motor gear
(drive source)
Clockwise rotation: switching operation
System gear
Scan unit locking lever
7.6. Switching operation (2) from the sheet scan mode to the fixed scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Locking rib
System gear biasing spring
Rotation of the system gear releases the pin A on the planet gear A mounting arm from the cam groove A, and the planetary gear A is engaged with the scan unit drive side gear. The scan unit starts mov­ing toward the fixed scan side.
(Scanner unit)
Motor gear
(drive source)
Clockwise rotation: switching operation
System gear
Scan unit locking lever
3 – 6
7.7. Switching operation (3) from the sheet scan mode to the fixed scan mode
AM-400DE
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Locking rib
Due to the system gear rotation, the pin B is guided in the cam groove B to turn the planet gear B mounting arm. The planet gear B is disen­gaged from the system gear, and the system gear loses its power.
(Scanner unit)
System gear biasing spring
Motor gear
(drive source)
Clockwise rotation: switching operation
System gear
Scan unit locking lever
7.8. Switching operation (4) from the sheet scan mode to the fixed scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
System gear biasing spring
Motor gear
(drive source)
Counterclockwise rotation: The scanner unit moves toward the sheet scan position.
(Clockwise rotation: The scanner unit moves toward the fixed scan position.)
Scan unit locking lever
System gear
The system gear is driven by the system gear biasing spring until it reaches the stopper at the release position of the scan unit locking lever.
3 – 7
AM-400DE
7.9. Switching operation (1) from the fixed scan mode to the sheet scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
System gear biasing spring
When the scan unit's lever that comes back to the sheet scan position pushes the system gear pin, the system gear starts rotating in clock­wise direction.
Pin
Motor gear (drive source)
Counterclockwise rotation: The scanner unit moves toward the sheet scan position.
System gear
Scanner unit
Lever
Scan unit locking lever
7.10. Switching operation (2) from the fixed scan mode to the sheet scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Pin A
Cam groove A
System gear biasing spring
Due to the system gear rotation, the pin B on the planet gear mounting arm is guided in the cam groove B, and the planet gear B is engaged with the system gear. Along with the system gear rotation, the scan unit locking lever moves toward the lock position.
Pin
Motor gear (drive source)
Counterclockwise rotation: The scan unit moves toward the sheet scan position.
Cam groove B
Pin B
System gear
Scan unit locking lever
Scanner unit
Lever
3 – 8
7.11. Switching operation (3) from the fixed scan mode to the sheet scan mode
AM-400DE
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Pin A
Cam groove A
Scan unit
Lever
System gear biasing spring
Rotation of the system gear releases the pin A on the planet gear A mounting arm from the cam groove A. The planet gear A moves to the intermediate position between the scan unit drive side gear and the sheet scan drive side gear. At this time, the belt stops moving, and the scan unit stops accordingly just before the sheet scan position.
Pin
Motor gear (drive source)
Counterclockwise rotation: switching operation
System gear
Scan unit locking lever
7.12. Switching operation (4) from the fixed scan mode to the sheet scan mode
Sheet scan drive side gear train
Planet gear A
Scan unit drive side gear train
Planet gear B
Locking rib
System gear biasing spring
Rotation of the system gear releases the pin B on the planet gear B mounting arm from the cam groove B, and the planet gear B is disen­gaged from the system gear. After the disengagement, the system gear is kept rotating in clockwise direction by the system gear biasing spring. The scan unit locking lever is moved by the system gear, and it stops after pushing the scan unit to the locking rib. Keep rotating the motor in the counterclockwise direction for the sheet feeding opera­tion.
(Scanner unit)
Motor gear
(drive source)
Counterclockwise rotation: Sheets are fed to the sheet scan section.
System gear
Scan unit locking lever
3 – 9
AM-400DE

8. Print process

8.1. Image forming process
Normal paper is used as print paper. A laser beam is used to expose on the OPC surface to form latent electrostatic images, which are developed into visible images (toner images) and are transferred on paper. The basic operation is composed of the five processes: charg­ing, exposure, development, transfer, and cleaning.
8.2. System diagram (1)
High Voltage Power Supply Unit
Paper
Main charger brush
Separation electrode
Transfer charge roller
Paper
8.3. System diagram (2)
CONTROL PWB
57
56
TCON
MCON
16bit CPU IC21
Heat roller
Heater lamp
Pressure roller
Laser beam
Developing roller
Photoconductor drum (OPC)
Constant voltage control circuit
Short protection circuit
Constant voltage control circuit
Laser Scanning Unit
Supply roller
Toner
High Voltage PWB Unit
Oscillation circuit
Feedback circuit
Oscillation circuit
Fig. 7
B1 Transformer
B51 Transformer
FU-EARTH
DV
Development Roller Voltage
SV
Supply Roller Voltage
TC
Transfer Charger Roller Voltage
MC
Main Charger brush Voltage
HV(+) Rectifier circuit
HV(-) Rectifier circuit
HV(-) Rectifier circuit
100V
100MOHM
4.7MOH M 4 .7MOHM
Print
Cleaning
print
cleaning
250M
110M
Constant voltage(-) circuit
Short circuit
TC
SV
DV
MC
DC: -220V
DC: -280V
DC: +400V
DC: +3600V (D6 Cathode)
DC: -500V
DC: -950V AC: -570V <--> -1330V
LASER MFP
Transfer Roller
OPC DRUM
Separation electrode
Supply Roller
Developing Roller
Doctor
Charger Roller
Logic circuit
PWMSIN
PWM control circuit
Feedback circuit
Fig. 8
3 – 10
Constant voltage(+) circuit
FU-EARTH
Heat Roller
Pressure Roller
8.4. Image forming process diagram
AM-400DE
Paper exit
High voltage circuit
Main charger brush
Fusing
Heat roller Pressure roller
Cleaning, Charge
Separation electrode
Separation
Scanning mirror
Mirror
Exposure
Transfer
Transfer roller
Lens Laser diode
Development cleaning
Paper feed roller Paper tray Paper
Toner
Developing roller
High voltage circuit
Heater lamp
High voltage circuit
Fig. 9
3 – 11
AM-400DE
8.5. Functions and operations of major parts
4
Fig. 10
Paper
3
8
9
6
1
7
5
Optical unit(LSU)
2
Toner
1 Developing roller 6 Separation electrode 2 Doctor 7 OPC drum 3 Toner stirring plate 8 Discharge plate 4 Toner supply roller 9 Main charger brush 5 Transfer roller
8.5.1 OPC drum unit
The OPC drum is charged and latent electrostatic images are formed on it and developed into visible toner images.
a. OPC drum
Latent electrostatic images are formed and developed into toner images on the OPC drum.
Organic Photo Conductor is used. The OPC surface is charged nega­tively by the main charger brush.
When the OPC is exposed to laser beam, the electric resistance of the exposed section falls and electric charge is generated in the OPC. As a result, electric charge on the OPC surface is removed. This principle is used to form latent electrostatic images.
8.5.2 Developing unit
Latent electrostatic images formed by laser beam on the OPC drum are developed to visible images by the developing unit. Toner is filled in the developing unit.
a. Developing roller
The developing roller is made of urethane and has a high electric resistance. It is flexible and is in close contact with the OPC drum. Toner on the developing roller is attached to latent electrostatic images on the OPC drum to form visible images on the OPC drum.
A voltage of DC-220V is applied the developing roller.
b. Doctor
The doctor is in close contact with the developing roller. It adjusts toner quantity on the developer roller surface.
The doctor is made of conductive material.
c. Toner supply roller
Toner is supplied to the developing roller by the sponge roller which is connected to the developing roller.
d. Toner stirring plate
This plate stirs toner in the developing unit to transport it to the devel­oping roller smoothly.
8.5.3 Transfer charger roller
The transfer charger roller is made of urethane and has a high electric resistance. It is flexible and is in close contact with the OPC drum.
A high voltage of AC 760V (P-P) and DC +3600V are applied to charge.
It positively charges paper transported from the paper feed section, which transfers negatively charged toner on the OPC drum onto the paper.
8.5.4 Separation electrode
This electrode is connected to the drum ground. It discharges paper which was positively charged in the transfer section to reduce the potential difference with the OPC drum to reduce static electricity between the paper and the OPC drum, thus facilitating separation of paper.
OPC layer
CTL (Charge transfer layer)
CGL (Charge generation layer)
Aluminum layer
Fig. 11
b. Main charger brush
The main charger brush charges the OPC drum surface. It is com­posed of brush fiber, and is in the shape of a roller. A high voltage of AC 760V (P-P) and DC-950V are applied to charge the brush.
The main charger brush is in contact with the OPC drum. BY applying electric charge to the OPC drum, the OPC drum is charged to about DC-900V.
3 – 12
8.6. Image forming operation
STEP 1 (Cleaning, Charg­ing):
The main charger is a rotating brush roller.
The main charger removes residual toner from the OPC drum by its rotating sweeping action and causes it to stick to the brush.
At the same time, a high voltage of -950V is applied to the main charger roller to generate a discharge of electricity between the roller and the OPC drum, generating positive and negative charges. The negative charges are attracted to the OPC drum, and evenly distrib­uted on the OPC drum. (The OPC drum surface is evenly charged.)
Residual toner the OPC drum is stirred and negative charges are scattered evenly on the OPC drum. (The OPC drum surface is evenly charged.)
AM-400DE
STEP 2 (Exposure): Laser beam scanning light corresponding to
the print data is radiated on the OPC drum.
Positive and negative charges are generated in the OPC drum CGL exposed with the laser beam.
Positive charges generated in the CGL are attracted toward the OPC drum surface (negative charges), and negative charges toward the aluminum layer (positive charges).
Therefore, the positive and negative charges neutralize each other in the laser-exposed area of the OPC drum surface and the aluminum layer, decreasing the potential of the OPC drum surface.
The area which is not exposed to laser beam has no change, and the OPC drum surface remains negatively charged to keep a high poten­tial. As a result, latent electrostatic images are formed on the OPC drum.
AC760V (P-P)
DC-950V
CTL
Residual toner
OPC drum
Aluminum layer (drum base)
CGL
Fig. 12
Main charger brush
Exposed area
CTL
CGL Aluminum layer (Drum base)
CTL
CGL
Aluminum layer (Drum base)
Laser beam
Non-exposed area
Fig. 13
3 – 13
AM-400DE
STEP 3 (Development): Toner is attached to the latent electro-
static images on the OPC drum to form visible images.
: Toner (Negatively charged)
Aluminum layer (Drum base)
CTL
CGL
On the other hand, when an area of OPC drum which was not exposed to the laser beam and did not lose its charge comes in con­tact with the developing roller, any residual toner attached to the OPC drum is transferred to the developing roller which is more positively charged.
As a result, unnecessary toner on the OPC drum is collected by the developing unit.
The operating principle for that case is contrary to that for transfer of toner from the developing roller to the OPC drum surface. (The electric field energy direction is contrary.)
STEP 4 (Trans­fer):
Visible images of toner on the OPC drum are transferred to the paper.
Doctor
Toner supply roller
DC
-280V
DC-180V
Developing roller
Exposed area (exposed to laser beam)
Non-exposed area (Not exposed to laser beam)
OPC drum
Fig. 14
Toner is transported to the scraper area by the toner supply roller and the developing roller. The quantity of toner to be transported to the doctor section is controlled by the scraper. Toner transported to the doctor section is then passed between the developing roller and the doctor to form a thin toner layer on the developing roller by the pres­sure applied by the doctor.
When toner passes between the developing roller and the doctor, it is charged negatively by friction.
When an area of OPC drum which was exposed to laser beam and lost its charge comes in contact with the developing roller, toner moves from the developing roller to the OPC drum surface.
The principle of toner movement from the developing roller to the OPC drum surface is as follows.
The bias voltage of DC-280V is applied to the developing roller. Toner is charged negatively by the difference (electrical energy) between the bias voltage and the OPC drum surface potential and is attracted to the OPC drum surface which is positively charged.
At that time, the potential of the area of the OPC drum which was exposed to the laser beam and lost its charge is higher than that of the developing roller.
CTL CGL
Paper
Aluminum layer (Drum base)
OPC drum
Transfer roller
DC+3600V AC760V(P-P)
Fig. 15
The high voltage of DC+3600V plus AC760V (P-P) is applied to the transfer roller to generate electric discharge between the roller and the OPC drum, generating positive and negative charges. Positive charges are attracted to the OPC drum and attached to the paper transported between the transfer roller and the OPC drum. Therefore the paper has a strong positive charge.
Negatively charged toner on the OPC drum is attracted by the paper which is positively charged, and the visible images of toner are trans­ferred onto the paper.
3 – 14
AM-400DE
STEP 5 (Paper separation): The paper is separated from the
OPC drum.
Paper
STEP 6 (Dis­charge):
The drum surface is discharged to facilitate cleaning of the drum surface. (The remaining toner is easily collected by the main charger roller.)
Main charger roller (brush)
Separation electrode
OPC drum
Aluminum layer (Drum base)
CGL
CTL
Transfer roller
Fig. 16
There is an electrostatic force between the paper which is positively charged in transfer operation and the OPC drum which is negatively charged. The positive charge on the paper is released to the separa­tion electrode, which is the same potential as the aluminum layer of the OPC drum, to reduce the potential difference between the OPC drum and the paper, reducing the electrostatic force.
This operation facilitates separation of the paper from the OPC drum.
AC760V (P-P)
DC-950V
Residual toner
OPC drum
Aluminum layer (Drum base)
CGL
CTL
Fig. 17
STEP 7 (Clean-
Residual toner on the OPC drum is removed.
ing):
The main charger is a rotating brush roller.
The main charger removes residual toner from the OPC drum by its rotating sweeping action and causes it to stick to the brush. The main charger brush is in close contact with the mesh-type brush cleaning plate which removes toner and paper dust from the main charger brush mechanically.
3 – 15
AM-400DE
-180V
OPC drum surface potential (-V)
Light area potential
Time (OPC drum rotation angle)
Start
During developing
Stop
Dark area potential
Developing bias
8.7. OPC drum surface potential
8.7.1 Transition of OPC drum surface potential by print operation
Laser
Dark area
beam
-950V
potential
8.7.2 OPC drum surface potential and developing bias voltage in development
-250V
OPC surface potential (-V)
Charging/ cleaning
Toner attachment potential
Light area potential
Exposure Residual
toner collection /Developing
Timer(OPC drum rotating angle)
Transfer Charging
Fig. 18
Developing bias
Fig. 19
3 – 16

9. Timing chart

9.1. Print process
AM-400DE
PRINT PROCESS
Signal Name
MCON Signal
PWMSIN Signal
TCON Signal
High Voltage
Power Supply Unit
MC Output
TC Output
SV Output
Soft Control
PMD (Polygon motor)
MM (Main motor)
MC (Main charger)
MC
(Superposing) (Duty)
TC (Transfer Charger)
SV (Supply Roller Voltage)
Laser Lighting (discharge)
MC (Main charger)
GND
Voltage MC
TC (Transfer Charger) Voltage TC(+)
GND
Voltage TC(-)
SV (Supply Roller Voltage) Voltage SV(+)
GND
Voltage SV(-)
DC(-950V)+AC(760Vp-p)
DC(+3600V)+AC(760Vp-p)
DC(-500V)
DC(+400V)
DC(-280V)
1
Pre-Printing period
max 5.0sec
DC AC DC
2sec
Lighting
CLEANING PRINTING
Printing period
One or more page printing
Printing
After Printing period
3.0sec
5sec
5sec
Lighting
CLEANING
9.2. Cleaning process
CLEANING PROCESS
MCON Signal
PWMSIN Signal
TCON Signal
Power Supply Unit
MC Output
TC Output
SV Output
Soft Control
PMD (Polygon motor)
MM (Main motor)
MC (Main charger)
MC
(Superposing) (Duty)
TC (Transfer Charger)
SV (Supply Roller Voltage)
Laser Lighting (discharge)
High Voltage
MC (Main charger)
Voltage MC
TC (Transfer Charger) Voltage TC(+)
Voltage TC(-)
SV (Supply Roller Voltage) Voltage SV(+)
Voltage SV(-)
GND
GND
GND
DC(-850V)
DC(-500V)
DC(+400V)
max 5.0sec
3.0sec
DC
7sec
Lighting
3 – 17
CLEANING
AM-400DE

[2] Disassembly and assembly procedures

• This chapter mainly describes the disassembly procedures. For the assembly procedures, reverse the disassembly procedures.
• Easy and simple disassembly/assembly procedures of some parts and units are omitted. For disassembly and assembly of such parts and units, refer to the Parts List.
• The numbers in the illustration, the parts list and the flowchart in a same section are common to each other.
• To assure reliability of the product, the disassembly and the assembly procedures should be performed carefully and deliberately.
1
Rear cover
Parts list (Fig. 1)
No. Part name Qty
1 Mechanism unit 1
2 Screw (3x10) 5
3 Hook 4
4 Rear cover 1
2
2
2
3
2
2
3
3
3
4
1
Mechanism unit
Rear cover
Fig.1
3 – 18
AM-400DE
2
High voltage
13
12
10
9
PWB unit and PWB plate
PWB unit
14
15
16
17
15
11
Power supply
10
PWB unit
2
2
15
Parts list (Fig. 2)
No. Part name Qty No. Part name Qty
1 Mechanism unit
2 Connector 23
3 Screw (3x8) 3
4 Screw (3x10) 1
5 Control PWB unit 1
6 Screw (3x10) 1
7 Screw (3x8) 1
8 LIU PWB unit 1
9 Connector 4
10 Screw (3x8) 2
11 Power supply PWB unit 1
12 Screw (3x8) 4
1
13 Earth cable 1
14 High voltage PWB unit 1
15 Screw (3x10) 4
16 Screw 1
17 AC cord earth cable 1
18 Screw (3x8) 1
19 Earth cable 1
20 Screw (3x6) 1
21 Earth cable 1
22 PWB plate 1
18
19
20
21
22
PWB plate
2
2
3
2
4
3
5
Control
PWB unit
1
Mechanism unit
2
2
6
8
7
LIU PWB unit
Fig.2
3 – 19
AM-400DE
3
Flatbed unit
2
Flatbed unit
3
2
Parts list (Fig. 3)
No. Part name Qty
1 Mechanism unit
2 Screw (4x12) 5
3 Flatbed unit 1
1
2
2
1. Right cover open
2
2. Front cover open
1
Mechanism unit
Fig.3
3 – 20
AM-400DE
4
Flatbed cover/Scanner unit/ Flatbed upper/ Drive unit/Flatbed lower
NOTE: For disassembly of the inside of the unit,
refer to the exploded view in the parts guide.
Scanner unit
2
Screwdriver
4
Stopper
plate
4
3
Parts list (Fig. 4)
No. Part name Qty No. Part name Qty
1 Flatbed cover 1
2 Scanner unit 1
3 Screw (3x12) 1
4 Screw (3x10) 4
5 Hook 6
6 Flatbed upper 1
Flatbed cover
1
7 Hook 1
8 Screw (3x6) 1
9 Earth spring 1
10 Earth spring 1 1
11 Screw (3x10) 1
12 Drive unit 1
13 Flatbed lower 1
4
4
Caution
5
Flatbed
lower
13
b
a
5
12
Drive
unit
Drive unit
12
10
6
Flatbed upper
Drive unit
5
5
11
5
5
8
IMPORTANT!
7
9
Hold lever
Flatbed lower
Pin exist upper End
Push
Mark point the drive unit
Mark point hold lever
Position assembly mark point same line.
Drive unit
Push
Must push this point when ass'y Drive unit.
Drive Unit
13
Flatbed lower
7
Hook
Fig.4
3 – 21
Hold lever touch the bottom of Flatbed lower.
Hold lever
When mounting the drive unit, the hold lever and the teeth of the system gear must be aligned.
AM-400DE
5
Right cover/Front cover/Paper exit unit/ Optical unit(LSU)/Fusing unit/
NOTE: For disassembly of the inside of the unit,
refer to the exploded view in the parts guide.
6
7
Paper exit
unit
6
11
Parts list (Fig. 5)
No. Part name Qty No. Part name Qty
1 Mechanism unit 1
2 Right cover pivot 1
3 Right cover 1
4 Screw (3x10) 1
5 Front cover 1
6 Screw (3x14) 4
7 Paper exit unit 1
8
10
8 Screw (3x10) 4
9 Screw (3x8) 1
10 Earth cable 1
11 Connector 2
12 Optical unit (LSU) 1
13 Screw 2
14 Fusing unit 1
9
8
11
12
Optical unit (LSU) Since the parts of this Optical unit (LSU) cannot be supplied, change it as a unit.
5
Front cover
4
1
Mechanism unit
2
Right cover
3
13
14
Fusing unit
13
Fig.5
3 – 22
AM-400DE
6
Wire treatment
LSU Earth cable
5
1
Parts list (Fig. 6)
No. Part name Qty
1 Band (100mm) 6
2 Screw 1
3 Wire holder 1
4 Core (F2154) 1
5 Screw (3x8) 1
6 Core (F2146) 1
7 Core (F2147) 1
The LSU earth cable pass to the core 1 time.
7
1
6 The CNLSR cable pass to the core 2 times.
CNLSR
CNPN
1
4
The AC cord earth cable pass to the core 2 times.
High voltage PWB unit
1
AC cord
1
CNBYPE
CNHT
2
CNSCM
CNCIS
CNPOUT1
CNPOUT2
CNTCT
CNMM
CNRTH
CNPM
CNHV
CNPUM CNFM
CNROLSNS CNTCVR
CN6
CNLIUCNPW
CNPINCN2
Power supply PWB unit LIU PWB unit
1
3
CNFRT
CNORG CNHPS CNSP
Control PWB
Fig.6
3 – 23
AM-400DE
AM-400DE

CHAPTER 4. DIADRAMS

[1] Block diagram

Host PC
Service Manual
PO1 Sensor
PO2 Sensor
Heater
Interlock
Switch
[ENGINE]
: 12 ppm, 600 x 600dpi
[Flatbed & ADF Scanner Unit]
Color CIS : 600dpi, 208mm
Image Sensor Unit
AFE
&GPIO
Stepper Motor/
ORG Sensor/Front Sensor
Drive Mechanism
GPIO
Main Controller
USB 2.0 USB port
OA-2000 (OASIS)
: 32bit ARC CPU-core Client
: Internal 96MHz
PIXEL
GPIO OUT USART
Clocked Synchronous
Serial Communication
GPIO
16bit CPU/20MHz
Printer Controller
Timer-Out GPIO GPI Timer-Out ADC GPO GPI
Thermistor
HIGH VOLTAGE
Sensor
Tray Cover
Motor
Stepper
Main Motor
PWB UNIT
Bypass PE
Fusing Unit
Sensor
Motor
Stepper
Pickup Motor
(LSU)
Optical Unit
P-IN Sensor
Roller
Switch
Toner C/T
Sensor
Paper Pick-up Mechanism
CONTROL PWB UNIT
Program Memory Work Memory
NOR Flash SDRAM
: 2MB : 16MB
Memory-Bus
Peripheral-Bus
8
16
FM336Plus
I/F Logic Circuit V.34 Fax Modem
4 – 1
LIU PWB UNIT
PWB UNIT
Entering Key
OPERATION PANEL
Tact SW (31)
LED
LCD Module
Redx 1
: 16 x 1line

[2] Wiring diagram

AM-400DE
LCD(16x1)
14
UNIT
CNPN1
PANEL PWB
OPERATION
MOTOR
SCANNER
CIS
PO1
SENSOR
PO2
SENSOR
16
4
12
3
2
2
FRONT SENSOR
2
(JST)
CNFRT
CNPN(FFC)
CNSCM
(JST)
CNCIS
(FFC)
CNPOUT1
(JST)
CNPOUT2
(JST)
ORG SENSOR
2
(JST)
CNORG
SENSOR
HOME POSITION
2
(JWT)
CNHPS
SPEAKER
2
(JWT)
CNSP
CONTROL PWB UNIT
PC
CNUSB
CNLIU
(Board-In)
CNPW
TEL LINE
LINE
12
CNLIU
LIU PWB UNIT
FUSE-2
THERMAL
2
AM-400DE/F/IT/SE
CN6
CNLN
14
CNPW
PWB UNIT
POWER SUPPLY
AM-400H
(LSU)
OPTICAL UNIT
THERMISTOR
8
LSU-L
5
LSU-P
CNRTH
(JST)
CNLSR
(JST)
CNPM
(JWT)
HIGH VOLTAGE
CNHV
5
CN1
PWB UNIT
CNMM(JST)
CNPUM(JWT)
4
6
MAIN MOTOR
PICKUP MOTOR
CNFM(JWT)
2
4
FAN
CNTCT(JWT)
CNBYPE(JST)
2
2
TONER C/T SENSOR
BYPASS PE SENSOR
CNPIN(JST)
CNROLSNS(JWT)
2
P-IN SENSOR
ROLLER SWITCH
CNTCVR(JST)
2
TORAY COVER SW
CN2
2
SW
INTERLOCK
CNHT
2
FUSING UNIT
4 – 2
AM-400DE
3
6
7
9

[3] Point-to-point diagram

CIS
FRONT
SENSOR
ORG
SENSOR
SCANNER
HOME POSITION
SENSOR
SCANNER
MOTOR
SPEAKER
PRINTER
MAIN MOTOR
PRINTER
PICKUP MOTOR
FAN
THERMISTOR
PRINTER
P-IN SENSOR
PRINTER
BYPASS PE
SENSOR
PRINTER
PAPER OUT 1
SENSOR
PRINTER
PAPER OUT 2
SENSOR
PRINTER
TRAY COVER
SENSOR
PRINTER ROLLER SWITCH
TONER
CARTRIDGE
SENSOR
CNCIS
Ao GND GND VDD
VREF
SP CLK
V-LED B-GND G-GND R-GND
N.C.
/FRSNS
GND
/ORGSNS
GND12
/HOME
GND
A
B /A /B
SP+ SP-
MA+ MB+ MA­MB-
/PUMBD /PUMAD
PUMBD PUMAD
VMT VMT
VFM+
N.C. 2
VFM- 3
+5V 1
RTH 2
/PIN 1 GND 2
PE_BY 1
GND 2
/POUT1 1
GND 2
POUT1_AN 3
/POUT2
GND 2
OPEN_TRAY
GND 2
/ROLSNS 1
GND 2
TCT2 1 COM 2 TCT1 3 TCT0 4
CNCIS
AO
1 2 3 4 5 6 7 8
9 10 11 12
1
2
1
2
1
2
3
4
1
2
1
2
3
4
1
2
3
4
5
6
1
1
1
1
GND(VDD)
2
GND
3
VDD(SEL)
4 5
VREF(GND)
6
SP
7
CLK
8
VLED
9
BLED_GND
10
GLED_GND
11
RLED_GND
12
N.C.
CNFRT
1 /FRSNS 2GND
CNORG
/ORGSNS
1 2GND
CNHPS
1/HOME
GND
2
CNSCM
1A 2B 3/A 4/B
CNSP
1 SP+ 2 SP-
CNMM
1MA+ 2MB+ 3MA­4MB-
CNPUM
1 /PUMBD 2 /PUMAD 3 PUMBD 4
PUMAD 5 VMT 6 VMT
CNFM
1 VFM+ 2 N.C. 3 VFM-
CNRTH
1+5V 2RTH
CNPIN
1 /PIN 2GND
CNBYPE
1 PE_BY 2GND
CNPOUT1
1 /POUT1 2GND 3 POUT1_AN
CNPOUT2
1 /POUT2 2GND
CNTCVR
1
OPEN_TRAY
2GND
CNROLSNS
1 /ROLSNS 2
GND
CNTCT
1TCT2 2COM 3
TCT1
4TCT0
E-RLY
+24V MAIN 5 +24V MAIN 6
CONTROL PWB UNIT
CNPN
E1 VLED 2 +3.3V 3
DG 4
/STRB7 5
/SEN0 6
/STRB6 7
/SEN1 8
/STRB5 9
/SEN2 10
/STRB4 11
/SEN3 12 /STRB3 13 /STRB0 14 /STRB2 15 /STRB1 16
CNPN1
16 E 15 LEDON 14 +3.3V 13 DG 12 /STRB7 11 /SEN0 10 /STRB6
9 /SEN1 8 /STRB5 7 /SEN2 6 /STRB4 5 /SEN3 4 /STRB3 3 /STRB0 2 /STRB2 1 /STRB1
OPERATION PANEL
CNLIU
RXIN 1
TXOUT 2
/CI 3
/EXHS 4
DPON
CML 6
+5V 7
DG 8
+24VA 9
(N.C.)
DPMUTE
(N.C.)
10 11 12
CNLIU
RXIN
1
TXOUT
2
/CI
/EXHS
4
DPON
5
5
CML
+5V
8
DG
+24VA
E-RLY
10 11
DPMUTE
(N.C.)
12
LIU PWB UNIT
CNUSB
PC
CNPW
MG 1
+24V_SUB 2
MG 3 MG 4
DG 7
+5V 8
DG 9
+3.3V 10
DG 11
/HLON 12
/PWRLY 13
/ZC 14
CNPW
1MG 2 +24V_SUB 3
MG 4MG 5 +24V MAIN
+24V MAIN
6 7DG 8 +5VMAIN
DG
9
10 +3.3VMAIN 11 DG
/HEATER ON
12
/PWRLY
13 14 /ZC
POWER SUPPLY UNIT
CNHV
PGND 1 1 PGND
PWMSIN 2 2 PWMSIN
MCON 3 TCON 4
+24V 5
CNLSR
DGND 1
-S/H 2
-VIDEO 3
-LDEN 4 DGND 5
+5V 6
DGND 7
-HSYNC 8
CNPM
CLK 1
-READY 2
-START 3 GND 4
+24V 5
CN1
3MCON 4 TCON 5+24V
CNLSR
1DGND 2 -S/H 3 -VIDEO 4-LDEN 5DGND 6+5V 7DGND 8 -HSYNC
CNPM
1CLK 2 -READY 3 -START 4GND 5+24V
DG
+3.3V
VO
RS
R/W
E N.C. N.C. N.C. N.C. LD0 LD1 LD2 LD3
PWB UNIT
(N.C.)
HIGH
VOLTAGE
PWB UNIT
OPTICAL
UNIT
(LSU)
CNLCD1
1 2 3 4 5 6 7 8
9 10 11 12 13 14
CN2
1111
2
2
CN6
1
+24VMAIN 2 N.C. 3+24VS
CNHT 1N 2 N.C. 3L
1DG 2 +3.3V 3VO 4
RS 5R/W 6E 7N.C. 8N.C. 9N.C.
10 N.C. 11 LD0 12 LD1 13 LD2 14 LD3
22
1
+24VMAIN 2N.C. 3+24VS
1N 2N.C. 3L
LCD UNIT
INTERLOCK
SWITCH
THERMAL
FUSE-2
FUSING
UNIT
4 – 3
AM-400DE

CHAPTER 5. CIRCUIT DESCRIPTION

AM-400DE
Service Manual

[1] Circuit description

1. General description

The compact design of the control PWB is obtained by using MFP ASIC OA-2000 in the main control section and high density printing of surface mounting parts. Each PWB is independent according to its function as shown in Fig. 1.

2. PWB configuration

FAN
OPERATION PANEL PWB
HEATER
LAMP
LINE CABLE
AC CORD
POWER
SUPPLY
PWB
LIU
PWB
2.1. Control PWB
The control PWB controls peripheral PWBs, mechanical parts, trans­mission, and performs overall control of the unit.
2.2. LIU PWB
This PWB controls connection of the telephone line to the unit.
2.3. Power supply PWB
This PWB provides voltages of +3.3V, +5V and +24V to the another PWB.
2.4. Panel PWB
The panel PWB allows input of the operation keys.
2.5. High voltage PWB
This PWB provides the high voltage to printer process units.
2.6. LCD PWB
This PWB controls the LCD display.
CONTROL
PWB
CIS
Fig. 1
HIGH VOLTAGE PWB
SCANNER
MOTOR
LCD
OPTICAL UNIT (LSU)
ROLLER SENSOR
MAIN MOTOR
TONER C/T SENSOR
FUSING UNIT
THERMISTOR
SPEAKER
PICKUP MOTOR

[2] Circuit description of control PWB

1. General description

The control PWB is composed of the following blocks..
1.1. Main control block
1) Controller block
2) Memory block
3) Modem block
4) Scanner I/F block
5) Panel I/F block
1.2. Printer control block
1.3. Power section

2. Description of each block

2.1. Main control block
Main control block consisting of CPU OA-2000 with 32bit microproces­sor core, SDRAM (128Mbit), FLASH (16Mbit), FAX MODEM, etc., con­trols scanning, images processing, FAX communication, user interface, USB interface etc., that is all except for printer controlling.
2.1.1 Controller block
1) OA-2000 (IC1): pin-208 QFP (Main CPU)
This is a microcomputer with 32bit microprocessor (ARC) core, which periphery functions are integrated into.
This device is equipped with the following function. The clock inputs 24MHz from outside and operates at 4-times frequency (96MHz) inter­nally.
Feature
• SDRAM Controller
Addressing, Control and Refresh to SDRAM (IC4)
• USB 2.0 Client I/F (High Speed & Full Speed)
Connection for PC
• General Purpose I/O port
Controlling Panel, LIU, Motor driver, etc.
Inputting of each sensor and status signals
• Contact Image Sensor I/F and Analog Front End
Processing of SCAN video signal and its A/D conversion.
• Hardware Image Processing Accelerators
• JBIG & JPEG Hardware Image Compression and Decompression
• Serial communication I/F
Communicating with Printer CPU (IC21)
• Peripheral Bus I/F
FAX MODEM (IC18) and KEY & STATUS signal buffer (IC10) is connected via Peripheral Bus.
• Pulse Width Modulators
This generates key input sound, alarm sound and ringer sound.
• Real Time Clock Generator
It is oscillated with quartz oscillator of 32.768kHz and the clock is provided.
5 – 1
AM-400DE
OA-2000 (IC1) Terminal description (1/4)
No. Pin name I/O Pin Description
1 GP_L6 Bidirectional General Purpose IO 2 GP_L7 Bidirectional General Purpose IO 3 GP_M0 Bidirectional General Purpose IO 4 GP_M1 Bidirectional General Purpose IO 5 GP_M2 Bidirectional General Purpose IO 6 GP_M3 Bidirectional General Purpose IO 7 GP_M4 Bidirectional General Purpose IO 8 GP_M5/UA1_RX_DATA Bidirectional General Purpose IO/Serial Communication Interface(Receiving data) 9 GP_M6/UA1_SCLK Bidirectional General Purpose IO/Serial Communication Interface(Serial clock)
10 VSS GND digital Ground
11 CORE_VDD18 +1.8V digital Power 12 GP_M7/UA1_TX_DATA Bidirectional General Purpose IO/Serial Communication Interface(Sending data) 13 GP_N0/PB_CS0 Bidirectional General Purpose IO/Peripheral Bus Chip Select 0 14 GP_N1 Bidirectional General Purpose IO 15 IO_VDD33 +3.3V digital Power 16 GP_N2 Bidirectional General Purpose IO 17 GP_N3/PB_CS3 Bidirectional General Purpose IO/Peripheral Bus Chip Select 3 18 GP_N4/PB_NOE Bidirectional General Purpose IO/Peripheral Bus Output Enable 19 GP_N5/PB_NWE Bidirectional General Purpose IO/Peripheral Bus Write Enable 20 GP_O0/PB_ADDR0 Bidirectional General Purpose IO/Peripheral Bus Address 21 GP_O1/PB_ADDR1 Bidirectional General Purpose IO/Peripheral Bus Address 22 VSS GND digital Ground 23 GP_O2/PB_ADDR2 Bidirectional General Purpose IO/Peripheral Bus Address 24 GP_O3/PB_ADDR3 Bidirectional General Purpose IO/Peripheral Bus Address 25 GP_O4/PB_ADDR4 Bidirectional General Purpose IO/Peripheral Bus Address 26 GP_O5 Bidirectional General Purpose IO 27 GP_O6 Bidirectional General Purpose IO 28 GP_O7 Bidirectional General Purpose IO 29 GP_P0/PB_DATA0 Bidirectional General Purpose IO/Peripheral Bus Data 30 GP_P1/PB_DATA1 Bidirectional General Purpose IO/Peripheral Bus Data 31 IO_VDD33 +3.3V digital Power 32 GP_P2/PB_DATA2 Bidirectional General Purpose IO/Peripheral Bus Data 33 GP_P3/PB_DATA3 Bidirectional General Purpose IO/Peripheral Bus Data 34 GP_P4/PB_DATA4 Bidirectional General Purpose IO/Peripheral Bus Data 35 GP_P5/PB_DATA5 Bidirectional General Purpose IO/Peripheral Bus Data 36 GP_P6/PB_DATA6 Bidirectional General Purpose IO/Peripheral Bus Data 37 GP_P7/PB_DATA7 Bidirectional General Purpose IO/Peripheral Bus Data 38 VSS GND digital Ground 39 CORE_VDD18 +1.8V digital Power 40 IO_VDD33 +3.3V digital Power 41 ADC_AVSS GND analog Ground 42 ADC_VIN0 Input analog A/D Converter Input 0 43 ADC_VIN1 Input analog A/D Converter Input 1 44 ADC_VIN2 Input analog A/D Converter Input 2 45 ADC_VIN3 Input analog A/D Converter Input 3 46 ADC_AVDD33 +3.3V analog Power 47 ADC_VIN4 Input analog A/D Converter Input 4 48 ADC_VIN5 Input analog A/D Converter Input 5 49 ADC_VIN6 Input analog A/D Converter Input 6 50 ADC_VIN7 Input analog A/D Converter Input 7 51 ADC_AVSS GND analog Ground 52 IO_VDD33 +3.3V digital Power 53 IO_VDD33 +3.3V digital Power 54 GP_C0 Bidirectional General Purpose IO 55 GP_D0 Bidirectional General Purpose IO 56 GP_C1 Bidirectional General Purpose IO 57 GP_D1 Bidirectional General Purpose IO 58 GP_C2 Bidirectional General Purpose IO 59 GP_C3 Bidirectional General Purpose IO 60 IO_VDD33 +3.3V digital Power 61 GP_C4 Bidirectional General Purpose IO 62 GP_C5 Bidirectional General Purpose IO 63 GP_C6 Bidirectional General Purpose IO 64 GP_C7 Bidirectional General Purpose IO
5 – 2
OA-2000 (IC1) Terminal description (2/4)
No. Pin name I/O Pin Description
65 CORE_VDD18 +1.8V digital Power 66 VSS GND digital Ground 67 GP_F0/PO_PAGE_SYNC Bidirectional General Purpose IO/Print Page Synchronous Input 68 GP_F1/PO_LINE_SYNC Bidirectional General Purpose IO/Print Line Synchronous Input 69 GP_F2 Bidirectional General Purpose IO 70 GP_F3 Bidirectional General Purpose IO 71 IO_VDD33 +3.3V digital Power 72 GP_F4 Bidirectional General Purpose IO 73 GP_F5 Bidirectional General Purpose IO 74 GP_F6 GND digital General Purpose IO 75 GP_F7 +1.8V digital General Purpose IO 76 VSS GND digital Ground 77 ROM_CS_L Output ROM Chip Select 78 SDRAM_DATA0 Bidirectional SDRAM Data Bus 79 IO_VDD33 +3.3V digital Power 80 SDRAM_DATA1 Bidirectional SDRAM Data Bus 81 SDRAM_DATA2 Bidirectional SDRAM Data Bus 82 SDRAM_DATA3 Bidirectional SDRAM Data Bus 83 SDRAM_DATA4 Bidirectional SDRAM Data Bus 84 CORE_VDD18 +1.8V digital Power 85 VSS GND digital Ground 86 SDRAM_DATA5 Bidirectional SDRAM Data Bus 87 SDRAM_DATA6 Bidirectional SDRAM Data Bus 88 SDRAM_DATA7 Bidirectional SDRAM Data Bus 89 SDRAM_DATA8 Bidirectional SDRAM Data Bus 90 IO_VDD33 +3.3V digital Power 91 SDRAM_DATA9 Bidirectional SDRAM Data Bus 92 SDRAM_DATA10 Bidirectional SDRAM Data Bus 93 SDRAM_DATA11 Bidirectional SDRAM Data Bus 94 SDRAM_DATA12 Bidirectional SDRAM Data Bus 95 VSS GND digital Ground 96 SDRAM_DATA13 Bidirectional SDRAM Data Bus 97 SDRAM_DATA14 Bidirectional SDRAM Data Bus 98 SDRAM_DATA15 Bidirectional SDRAM Data Bus 99 SDRAM_DQMA0 Output SDRAM IO Mask
100 IO_VDD33 +3.3V digital Power 101 SDRAM_DQMA1 Output SDRAM IO Mask 102 SDRAM_CS0_L Output SDRAM Chip Select 0 103 SDRAM_CKE Output SDRAM Clock Enable 104 SDRAM_CLK Output SDRAM Clock 105 VSS GND digital Ground 106 SDRAM_ADDR12 Bidirectional SDRAM Address Bus 107 SDRAM_ADDR11 Bidirectional SDRAM Address Bus 108 SDRAM_ADDR10 Bidirectional SDRAM Address Bus 109 SDRAM_ADDR9 Bidirectional SDRAM Address Bus 110 IO_VDD33 +3.3V digital Power
111 SDRAM_ADDR8 Bidirectional SDRAM Address Bus 112 SDRAM_ADDR7 Bidirectional SDRAM Address Bus 113 SDRAM_ADDR6 Bidirectional SDRAM Address Bus 114 SDRAM_ADDR5 Bidirectional SDRAM Address Bus 115 VSS GND digital Ground 116 SDRAM_ADDR4 Bidirectional SDRAM Address Bus 117 IO_VDD33 +3.3V digital Power 118 SDRAM_CS1A_L Output SDRAM Chip Select 1 119 SDRAM_ADDR3 Bidirectional SDRAM Address Bus 120 CORE_VDD18 +1.8V digital Power 121 VSS GND digital Ground 122 SDRAM_ADDR2 Bidirectional SDRAM Address Bus 123 SDRAM_ADDR1 Bidirectional SDRAM Address Bus 124 SDRAM_ADDR0 Bidirectional SDRAM Address Bus 125 SDRAM_BA1 Bidirectional SDRAM Bank Select Address 126 IO_VDD33 +3.3V digital Power 127 SDRAM_BA0 Bidirectional SDRAM Bank Select Address 128 SDRAM_RAS_L Bidirectional SDRAM Row Address Strobe Command
AM-400DE
5 – 3
AM-400DE
OA-2000 (IC1) Terminal description (3/4)
No. Pin name I/O Pin Description
129 SDRAM_CAS_L Bidirectional SDRAM Column Address Strobe Command 130 SDRAM_WE_L Bidirectional SDRAM Write Enable 131 VSS GND digital Ground 132 GP_H0/PI_TGEN0 Bidirectional General Purpose IO/Timing Generator for CIS 133 GP_H1/BASE_CLK Bidirectional General Purpose IO/Base Clock Input 134 GP_H2/PI_TGEN2 Bidirectional General Purpose IO/Timing Generator for CIS 135 GP_H3 Bidirectional General Purpose IO 136 IO_VDD33 +3.3V digital Power 137 RTC_VSS GND digital Ground 138 RTC_XIN Crystal/Input Real Time Clock Crystal 139 RTC_XOUT Crystal Real Time Clock Crystal 140 RTC_VDD18 +1.8V digital Real Time Clock Power 141 VSS GND digital Ground 142 CORE_VDD18 +1.8V digital General Purpose IO 143 GP_H4 Bidirectional Power 144 GP_H5/PI_TGEN5 Bidirectional General Purpose IO/Timing Generator 145 GP_H6/PI_TGEN6 Bidirectional General Purpose IO/Timing Generator 146 GP_H7/PI_TR_TGEN Bidirectional General Purpose IO/Timing Generator 147 IO_VDD33 +3.3V digital Power 148 GP_J0 Bidirectional General Purpose IO 149 GP_J1 Bidirectional General Purpose IO 150 GP_J2 Bidirectional General Purpose IO 151 GP_J3 Bidirectional General Purpose IO 152 VSS GND digital Ground 153 GP_J4 Bidirectional General Purpose IO 154 GP_J5 Bidirectional General Purpose IO 155 GP_J6 Bidirectional General Purpose IO 156 GP_J7 Bidirectional General Purpose IO 157 IO_VDD33 +3.3V digital Power 158 GP_K0/PI_TGEN_AUX Bidirectional General Purpose IO/Timing Generator 159 GP_K1 Bidirectional General Purpose IO 160 VSS GND digital Ground 161 RESET_L Bidirectional Reset signal Input 162 AFE_VINB Input analog AFE Video Input 163 AFE_VING Input analog AFE Video Input 164 AFE_ANAREF GND analog AFE Reference Voltage Input 165 AFE_VINR Input analog AFE Video Input 166 AFE_AVSS GND analog Ground 167 AFE_VREFN Analog AFE Reference Voltage Input 168 AFE_VREFP Analog AFE Reference Voltage Input 169 AFE_VCM Analog AFE Reference Voltage Input 170 AFE_AVDD33 +3.3 V analog Power 171 VSS GND digital Ground 172 CORE_VDD18 +1.8V digital Power 173 TCK Input (Used only debug mode) 174 TMS Input (Used only debug mode) 175 TDI Input (Used only debug mode) 176 TDO Output (Used only debug mode) 177 CK_PWM1 Bidirectional Pulse Width Modulators 178 CK_PWM0 Bidirectional Pulse Width Modulators 179 IO_VDD33 +3.3V digital Power 180 XOUT Crystal Crystal 181 XIN Crystal/Input Crystal 182 VSS GND digital Ground 183 CORE_VDD18 +1.8V digital Power 184 PLL_AVDD18 +1.8V analog Power 185 PLL_AVSS GND digital Ground 186 HOST1_DM Bidir.analog USB Host Interface 187 HOST1_DP Bidir.analog USB Host Interface 188 HOST_AVDD33 +3.3V analog Power 189 HOST0_DM Bidir.analog USB Host Interface 190 HOST0_DP Bidir.analog USB Host Interface 191 HOST_AVSS GND analog Ground 192 DEV_RSDM Output analog USB Device Interface
5 – 4
OA-2000 (IC1) Terminal description (4/4)
No. Pin name I/O Pin Description
193 DEV_RSDP Output analog USB Device Interface 194 DEV_DP Bidir.analog USB Device Interface 195 DEV_DM Bidir.analog USB Device Interface 196 DEV_AVSS GND analog Ground 197 DEV_RREF Analog USB Device Reference Input 198 DEV_AVDD33 +3.3V analog Power 199 DEV_VSENSE Input USB Device Interface 200 DEV_RUP Output USB Device Interface 201 GP_L0/PO_DATA0 Bidirectional General Purpose IO/Print Video Data Output 202 GP_L1 Bidirectional General Purpose IO 203 GP_L2 Bidirectional General Purpose IO 204 GP_L3 Bidirectional General Purpose IO 205 GP_L4 Bidirectional General Purpose IO 206 GP_L5 Bidirectional General Purpose IO 207 VSS GND digital Ground 208 IO_VDD33 +3.3V digital Power
AM-400DE
2.1.2 Memory block
1) LH28F160BJE (IC6): pin-48 TSOP (FLASH MEMORY)
16Mbit FLASH Memory.
Firmware being compressed except for boot program, is stored in this device. All of the entry data, user setting and so on are also stored.
2) W9812G6DH-75 or IS42S16800A-7TL (IC4): pin-54 TSOP (SDRAM)
128Mbit (2M x 16bit x 4bank) Synchronous DRAM.
On power on sequence, the firmware being compressed and stored in FLASH memory (IC6) is decompressed to this device. After decom­pression, this device is used as a program execution memory. It is also used as various work memories and communication buffer etc.
2.1.3 MODEM block
1) MODEM
The block is mainly composed of the G3 FAX modem FM336PLus (IC18), and is provided with the following modem function.
1) G3 FAX modem
The modem satisfies the requirements specified in ITU-T recom­mendations V.34 half-duplex, V.17, V.33, V.29, V.27 ter, V.21, and meets the binary signaling requirements of V.8 and T.30 with Annex F. Internal HDLC support eliminates the need for an external serial input/output (SIO) device in the DTE for products incorporating error detection and T.30 protocol. The modem can perform HDLC framing per T.30 at all data speeds. CRC generation/checking along with zero insertion/deletion enhances SDLC/HDLC frame operations. Two FSK (V.21 Ch. 1 and V.21 Ch. 2) flag pattern detectors facilitate FSK detection during high-speed reception. The modem features a programmable DTMF transmitter/receiver and three programmable tone detectors.
2) Features
• 2-wire half-duplex fax modem modes with send and receive data rates up to 33.6 kbps.
- V.34 half-duplex, V.17, V.33, V.29, V.27 ter, and V.21 Channel 2
- Short train option in V.17 and V.27 ter
• 2-wire duplex data modem modes
- V.21, V.23 (75 bps TX/1200 bps RX or 1200 bps TX/75 bps RX)
• PSTN session starting
- V.8 and V.8 bis signaling
• HDLC support at all speeds
- Flag generation, 0-bit stuffing, ITU-T CRC-16 or CRC-32 cal­culation and generation
- Flag detection, 0-bit stuffing, ITU-T CRC-16 or CRC-32 check sum error detection
- FSK flag pattern detection during high-speed receiving
• Tone modes and features
- Programmable single or dual tone generation
- DTMF receiver
- Tone detection with three programmable tone detectors
• Serial and parallel synchronous data
• Automatic Rate Adaptation (ARA) in V.34 half-duplex
• Auto-dial and auto-answer control
• TTL and CMOS compatible DTE interface
- ITU-T V.24 (EIA/TIA-232-E) (data/control)
- Microprocessor bus (data/configuration/control)
• Receive dynamic range:
- 0 dBm to -43 dBm for V.17, V.33, V.29, V.27 ter and V.21
- -9 dBm to -43 dBm for V.34 half-duplex
• Caller ID Demodulation
• Single tone detection in Data Mode
• ADPCM Voice Mode (Conexant Proprietary)
• Programmable RSLD turn-on and turn-off thresholds
• Programmable transmit level: 0 to -15 dBm
• Adjustable speaker output to monitor received signal
• DMA support for interrupt lines
• Two 16-byte FIFO data buffers for burst data transfer with extension upto 255 bytes
• Diagnostic capability
• V.21 Channel 1 Flag detect and V.21 Channel 2 Flag detect
• +3.3 V operation with +5 V tolerant inputs
• +5 V analog signal interface
• 100-pin PQFP package
• Typical power consumption
- Normal mode: VDD1 = 250 mW (+3.3 V for DSP); VDD = 35 mW (+5 V for IA)
- Sleep mode: VDD1 = 20 mW (+3.3 V for DSP); VDD = 0.1 mW (+5 V for IA)
5 – 5
AM-400DE
3) Configurations, Signaling Rates, and Data Rates
Configuration Modulation Carrier Fre-
quency (Hz) ±
Data Rate
(bps) ± 0.01 %
0.01 %
V.90 PCM PCM 56000 R/V.34
rates T
(Note 4)
3
V. 34 33600 TCM
V. 34 31200 TCM
V. 34 28800 TCM
V. 34 26400 TCM
V. 34 24000 TCM
V. 34 21600 TCM
V. 34 19200 TCM
V. 34 16800 TCM
V. 34 14400 TCM
V. 34 12000 TCM
V. 34 9600 TCM
V. 34 7200 TCM
V. 34 4800 TCM
V. 34 2400 TCM
3
3
3
3
TCM Note 2 33600 3429 only Note 2 Note 2 Note 2
3
TCM Note 2 31200 3200 min Note 2 Note 2 Note 2
3
TCM Note 2 28800 3000 min Note 2 Note 2 Note 2
3
TCM Note 2 26400 2800 min Note 2 Note 2 Note 2
3
TCM Note 2 24000 2800 min Note 2 Note 2 Note 2
3
TCM Note 2 21600 2400 min Note 2 Note 2 Note 2
3
TCM Note 2 19200 Note 2 Note 2 Note 2 Note 2
3
TCM Note 2 16800 Note 2 Note 2 Note 2 Note 2
3
TCM Note 2 14400 Note 2 Note 2 Note 2 Note 2
3
TCM Note 2 12000 Note 2 Note 2 Note 2 Note 2
TCM Note 2 9600 Note 2 Note 2 Note 2 Note 2
TCM Note 2 7200 Note 2 Note 2 Note 2 Note 2
TCM Note 2 4800 Note 2 Note 2 Note 2 Note 2
TCM Note 2 2400 2400 only Note 2 Note 2 Note 2
V. 32 bis 14400 TCM TCM 1800 14400 2400 6 1 128 V. 32 bis 12000 TCM TCM 1800 12000 2400 5 1 64 V. 32 bis 9600 TCM TCM 1800 9600 2400 4 1 32 V. 32 bis 7200 TCM TCM 1800 7200 2400 3 1 16 V. 32 bis 4800 QAM 1800 4800 2400 2 0 4 V. 32 9600 TCM TCM 1800 9600 2400 4 1 32 V. 32 9600 QAM 1800 9600 2400 4 0 16 V. 32 4800 QAM 1800 4800 2400 2 0 4 V. 22 bis 2400 QAM 1200/2400 2400 600 4 0 16 V. 22 bis 1200 DPSK 1200/2400 1200 600 2 0 4 V. 22 1200 DPSK 1200/2400 1200 600 2 0 4 V. 22 600 DPSK 1200/2400 600 600 1 0 4 V. 23 1200/75 FSK 1700/420 1200/75 1200 1 0 — V. 21 FSK 1080/1750 Up to 300 300 1 0 — Bell 208 4800 DPSK 1800 4800 1600 3 0 8 Bell 212A DPSK 1200/2400 1200 600 2 0 4 Bell 103 FSK 1170/2125 Up to 300 300 1 0 — V. 17 14400 TCM/V.33 TCM 1800 14400 2400 6 1 128 V. 17 12000 TCM/V.33 TCM 1800 12000 2400 5 1 64 V. 17 9600 TCM TCM 1800 9600 2400 4 1 32 V. 17 7200 TCM TCM 1800 7200 2400 3 1 16 V. 29 9600 QAM 1700 9600 2400 4 0 16 V. 29 7200 QAM 1700 7200 2400 3 0 8 V. 29 4800 QAM 1700 4800 2400 2 0 4 V. 27 4800 DPSK 1800 4800 1600 3 0 8 V. 27 2400 DPSK 1800 2400 1200 2 0 4 V. 21 Channel 2 FSK 1750 300 300 1 0 — Notes:
1. Modulation legend:TCM:Trellis-Coded Modulation QAM:Quadrature Amplitude Modulation PCM:Pulse Coded Modulation FSK:Frequency Shift Keying DPSK:Differential Phase Shift Keying
2. Adaptive; established during handshake: Symbol Rate (Baud) V. 34 Low Carrier Frequency (Hz) V. 34 High Carrier Frequency (Hz) 2400 1600 1800 2800 1680 1867 3000 1800 2000 3200 1829 1920 3429 1959 1959
3. For both duplex and half-duplex modes.
4. Maximum data rate.
Symbol Rate
(Symbols/Sec.)
Bits/Symbol
Data
Bits/Symbol
TCM
8000 Dynamic
Constellation
Points
5 – 6
4) FM336Plus (IC18) Terminal description
PIN I/O Name Interface PIN I/O Name Interface
1 RESERVED NC 51 RESERVED NC 2 IA RS2 HOST Interface 52 GND VSUB — 3 IA RS3 HOST Interface 53 GND VSS — 4 IA RS4 HOST Interface 54 NC NC 5 IA /CS OHOST Interface 55 NC NC 6 IA /WR HOST Interface 56 MI SLEEP Modem Interconnect 7 IA /RD HOST Interface 57 PWR VDD1 — 8 OA /RDCLK DTE Serial Interface 58 NC NC
9 OA /RLSD DTE Serial Interface 59 RESERVED NC 10 OA TDCLK DTE Serial Interface 60 RESERVED NC 11 IA TXD DTE Serial Interface 61 MI SR1IO Modem Interconnect 12 OA /CTS DTE Serial Interface 62 PWR VCORE — 13 PWR VDD1 63 PWR VDD1 — 14 RESERVED NC 64 IA XTCLK DTE Serial Interface 15 RESERVED NC 65 GND VSS — 16 GND VSS 66 RESERVED NC 17 NC NC 67 OA RXD DTE Serial Interface 18 IA /RESET Modem Interconnect 68 IA /DTR DTE Serial Interface 19 OA SR4OUT Modem Interconnect 69 PWR VDD1 — 20 NC NC 70 MI IA SLEEP Modem Interconnect 21 IA SR4IN Modem Interconnect 71 PWR VGG — 22 OA CLK OUT Modem Interconnect 72 OA YCLK Overhead Signal 23 OA EYESYNC Diagnostic Signal 73 OA XCLK Overhead Signal 24 OA EYECLK Diagnostic Signal 74 OA EYEXY Diagnostic Signal 25 GND MAVSS 75 OA /DSR DTE Serial Interface 26 PWR MAVDD 76 OA /RI Telephone Line Interface 27 O(DF) SPKR Telephone Line Interface 77 IA RINGD Telephone Line Interface 28 O(DD) TXA2 Telephone Line Interface 78 IA /RTS DTE Serial Interface 29 O(DD) TXA1 Telephone Line Interface 79 OA IRQ HOST Interface 30 MI VREF Modem Interconnect 80 GND VSS — 31 MI VC Modem Interconnect 81 MI GP00 Modem Interconnect 32 I(DA) RIN Telephone Line Interface 82 RESERVED NC 33 AGND MAVSS 83 RESERVED NC 34 IA /POR Modem Interconnect 84 PWR VDD1 — 35 RESERVED NC 85 I XTALI/CLKIN Overhead Signal 36 RESERVED NC 86 O XTALO Overhead Signal 37 O(DD) /TALK Telephone Line Interface 87 IA/OB D0 HOST Interface 38 PWR VDD 88 IA/OB D1 HOST Interface 39 RESERVED NC 89 IA/OB D2 HOST Interface 40 RESERVED NC 90 IA/OB D3 HOST Interface 41 NC NC 91 IA/OB D4 HOST Interface 42 IA M CNTRL SIN Modem Interconnect 92 PWR VDD1 — 43 IA M CLKIN Modem Interconnect 93 IA/OB D5 HOST Interface 44 IA M TXSIN Modem Interconnect 94 IA/OB D6 HOST Interface 45 IA M SCK Modem Interconnect 95 IA/OB D7 HOST Interface 46 IA M RXOUT Modem Interconnect 96 IA/OB RS0 HOST Interface 47 IA M STROBE Modem Interconnect 97 IA/OB RS1 HOST Interface 48 RESERVED NC 98 PWR PLL VDD — 49 O(DD) OH Telephone Line Interface 99 GND VSS — 50 PWR VDD 100 GNDPLL GND
Notes:
1. I/O types: MI: Modem interconnect IA, IB:Digital input O(DD), O(DF):Analog input I(DA): Analog input OA, OB:Digital output
2. NC= No external connection required. RESERVED= No external connection allowed.
3. Interface Legend: HOST= Modem Control Unit (Host) DET= Data Terminal Equipment
AM-400DE
2) Speaker amplifier
The speaker amplifier (IC17) outputs the buzzer and ringer sound gen­erated by Main CPU (IC1).
5 – 7
AM-400DE
(
)
2.1.4 Scanner I/F block
1) CIS I/F block
The CIS is controlled through buffer (IC14) by Main CPU (IC1), and the output video signal from CIS is input into AFE block of Main CPU (IC1). CIS LED is controlled through LED driving circuit (IC36, Q29~Q34) by Main CPU (IC1).
CIS
LED R/G/B
Image sensor
2) Scanner Motor control
MTD2007F (IC12): pin-28 HSOP (Scanner Motor Driver)
The scanner motor is driven by this Motor Driver which is the constant current motor driver with bipolar, chopper system the rotation speed and its timing of the scanner motor are controlled by Main CPU (IC1).
Motor Driver
Scanner Motor
Motor Driver (IC12)
IC12)IC12
LED Driving circuit
Buffer IC
(IC14)
Video signal
Fig. 2
Main CPU (IC1)
AFE BLOCK
Main CPU (IC1)
2.1.5 Panel I/F block
The strobe signals for LCD control and key scanning of the operation panel PWB unit are output from the GPIO port of the Main CPU (IC1). The key switch sense signals from panel unit is connected to periph­eral bus via buffer IC (IC14).
LCD
Operation
Panel Control Signal
PWB
unit
Key Sense Signal
Fig. 3
Fig. 4
Strobe Signal
Control Signal
Buffer IC (IC14)
Main CPU
(IC1)
Peripheral Bus
5 – 8
2.2. Printer control block
Printer control block is composed by a single chip microcomputer "HD64F36049" which built in a 16bit CPU, 96kbyte flash ROM and 3kbyte RAM.
2.2.1 HD64F36049 (IC21): pin-80 QFP
Feature
High-speed H8/300H central processing unit with an internal 16bit architecture.
• Upward-compatible with H8/300 CPU on an object level
Sixteen 16bit general registers
62 basic instructions
• Various peripheral functions
Timer B1 (8bit timer)
OSC2
OSC1
X2
X1
Timer V (8bit timer)
Timer W (16bit timer)
Timer Z (16bit timer)
14bit PWM)
Watchdog timer
SC13 (Asynchronous or clocked synchronous serial communica­tion interface) x 3 channels
10bit A/D converter
• On-chip memory
ROM (F-ZTAT): 96kbytes
RAM: 4kbytes
• Operation frequency: 20MHz
NMI
TEST
VSS
VSS
RES
VCLVCC
AM-400DE
P17/IRQ3/TRGV
P16/IRQ2
P15/IRQ1/TMIB1
P14/IRQ0
P12
P11/PWM
P10/TMOW
P24 P23
P22/TXD
P21/RXD
P20/SCK3
P37 P36 P35 P34 P33 P32 P31 P31
P57/SCL
P55/WKP5/ADTRG
P56/SDA
P54/WKP4 P53/WKP3 P52/WKP2 P51/WKP1 P50/WKP0
Port 1 Port 2 Port 3
Port 5
Subclock
generator
System
clock
generator
CPU
H8/300H
Data bus(lower)
ROM
RTC
14-bit PWM
Timer Z
Timer V
Timer W
A/D converter
Data bus(upper)
Address bus
RAM
IIC2
SCI3
SCI3_2
SCI3_3
Watchdog
timer
Timer B1
P67/FTIOD1 P66/FTIOC1 P65/FTIOB1 P64/FTIOA1 P63/FTIOD0
Port 6Port 7Port 8
P62/FTIOC0 P61/FTIOB0 P60/FTIOA0
P77 P76/TMOV P75/TMCIV P74/TMRIV P72/TXD_2 P71/RXD_2 P70/SCK3_2
P87 P86 P85 P84/FTIOD P83/FTIOC P82/FTIOB P81/FTIOA P80/FTCI
P97 P96 P95 P94 P93
Port 9
P92/TXD_3 P91/RXD_3 P90/SCK3_3
Port B
PB7/AN7
PB6/AN6
PB5/AN5
PB4/AN4
Fig. 5
5 – 9
PB3/AN3
PB2/AN2
PB1/AN1
PB0/AN0
CC
AV
AVSS
AM-400DE
HD64F36049 (IC21) Terminal description
TYPE SYMBOL PIN NO. I/O FUNCTIONS
Power supply pins Vcc 12 I Power supply pin. Connect this pin to the system power supply.
Vss 9, 50 I Ground pin. Connect this pin to the system power supply (0V). AVcc 3 I Analog power supply pin for the A/D converter. When the A/D converter is not
used, connect this pin to the system power supply.
AVss 74 I Analog ground pin for the A/D converter. Connect this pin to the system power
supply (0V).
V
CL
Clock pins OCS1 11 I These pins connect with crystal or ceramic resonator for the system clock, or
OCS2 10 O X1 5 I These pins connect with a 32.768 kHz crystal resonator for the subclock. See X2 4 O
System control /RES 7 I Reset pin. The pull-up resistor (typ. 150 k) is incorporated. When driven low,
TEST 8 I Test pin. Connect this pin to Vss.
External interrupt pins /NMI 13 I Non-maskable interrupt request input pin.
/IRQ0 - /IRQ3 25 - 28 I External interrupt request input pins. Can select the rising or falling edge.
/WKP0 - /WKP5 36 - 31 I External interrupt request input pins. Can select the rising or falling edge. RTC TMOW 56 O This is an output pin for divided clocks. Timer B1 TMIB1 26 I External event input pin. Timer V TMOV 72 O This is an output pin for waveforms generated by the output compare function.
TMCIV 71 I External event input pin.
TMRIV 70 I Counter reset input pin.
TRGV 28 I Count start trigger input pin. Timer Z FTIOA0 42 I/O Output compare output/input capture input/external clock input pin.
FTIOB0 43 I/O Output compare output/input capture input/PWM output pin.
FTIOC0 44 I/O Output compare output/input capture input/PWM synchronous output pin (at a
FTIOD0 45 I/O Output compare output/input capture input/PWM output pin.
FTIOA1 46 I/O Output compare output/input capture input/PWM output pin (at a reset or in
FTIOB1 - FTIOD1 47 - 49 I/O Output compare output/input capture input/PWM output pin. Timer W FTCI 51 I External event input pin.
FTIOA - FTIOD 52 - 55 I/O Output compare output/input capture input/PWM output pin. 14bit PWM PWM 57 O 14bit PWM square wave output pin.
2
I
C bus interface 2 (IIC2)
Serial Communication interface 3 (SCI3)
A/D converter AN7 - AN0 2, 1, 80 - 75I Analog input pin.
SDA 30 I/O IIC data I/O pin. Can directly drive a bus by NMOS open-drain output. When
SCL 29 I/O
TXD, TXD_2,
TXD_3
RXD, RXD_2,
RXD_3
SCK3, SCK_2,
SCK_3
6 I Internal step-down power supply pin. Connect a capacitor of around 0.1µF
between this pin and the Vss pin for stabilization.
can be used to input an external clock.
Clock Pulse Generators, for a typical connection.
the chip is reset.
reset or in complementary PWM mode)
complementary PWM mode)
using this pin, external pull-up resistor is required.
39, 69, 61
40, 68, 60
41, 67, 59I/O Clock I/O pin.
O Transmit data output pin.
I Receive data input pin.
/ADTRG 31 I Conversion start trigger input pin. I/O ports PB7 - PB0 2, 1, 80 - 75I 8bit input port.
P17 - P14, P12 -
P10
P24 - P20 37 - 41 I/O 5bit I/O port.
P37 - P30 17 - 24 I/O 8bit I/O port.
P57 - P50 29 - 36 I/O 8bit I/O port.
P67 - P60 49 - 42 I/O 8bit I/O port.
P77 - P74, P72 -
P70
P87 - P80 14 - 16,
P97 - P90 66 - 59 I/O 8bit I/O port.
28 - 25, 58 - 56
73 - 70, 69 - 67
55 - 51
I/O 7bit I/O port.
I/O 7bit I/O port.
I/O 8bit I/O port.
5 – 10
This printer CPU executes the print action in accordance with the com­mand from Main controller. Printer CPU controls each component of Laser Beam Printer (LBP) as follows.
1) Main Motor control
2) Pickup Motor control
3) Fuser control
4) High Voltage Generator control
5) Laser Scanning control
6) Sensor monitor
7) Communication with Main controller
2.2.2 Signal connection
AM-400DE
POWER SUPPLY PWB UNIT
3.3 V Logic
RX_DATA
TX_DATA
Heater Lamp drive circuit
OA-2000 (OASIS)
PB_DATA
PAGE_SYNC
PIXEL_DATA
LINE_SYNC
SCLK
GPO
GPO
GPO
GPO
DRV
DRV HLON
5V Tolerance Buf.
/SCLK
/CMD
/CPRDY
/DSRDY
/DPAGE
3.3V->5V TRANS.
D7~5
PCURES
VIDEO IN
5V Tolerance Buf.
Buffer
5V
Tolerance
5V Tolerance Buf.
Digital Transistor
GND
20MHz
Circuit
LATCH F.F.
Laser Timing
WRLY
/ZC
/STS
EPRDY
/DCRDY
/DREADY
/VSYNC
/PCURES
APC_AUTO
SYNC_LON
/LASERON
/SAMPON
PMD
VIDEO
SAMP
GPO
GPO
IRQ0
5 V Logic
16bit
MICROCOMPUTER
TXD_3
SCK3_3
RXD_3G
GPI
GPI
GPI
GPO
GPO
GPO
GPO
RES
OSC1
OSC2
TMOV FTIOD0
GPO
GPO
GPO
GPO
HD64F36049
Remove chattering
AN0
GPO
GPO
GPO
FTIOB
GPO
GPO
GPO
GPO
GPO
GPI
GPI
GPI
GPI
GPI
GPI*3
GPO
GPO
FTIOB0
FTIOC0
IRQ1/
GPO
FTIOA1
IRQ2
TRGV
GPI
VFM
/MEN /MMRES
STEP
DIR
/DOP
GPI
PI
GPI
PUMA DRV
PUMB DRV
/PUMAD DRV
/PUMBD DRV
TC/BIASON
MCON
PWM0
PWM1
PWM2
PWMINT
LDEN
PMCLK
Open Collector
Open
Collector Open
Collector
COMP
Motor Driver
COMP
PWMSIN
Generation
Circuit
Open
Collector
Open
Collector
DRV
Limit Temp.
RTH
MA+ MA­MB+ MB-
+24V
TRY OPEN
PE BY
/CAMSW
/ROLSNS
/POUT1
/POUT2
TCT2~TCT0
PWMSIN
LDEN
/PMCLK
/HSYNC
/PMRDY
/PMD
/VIDEO
/S_H
5 V/24 V Control
FUSER Thermister
FAN
STEPPER MOTOR
R-COVER (F-COVER)
TORAY
BYPASS TORAY
STEPPER MOTOR for Paper Pickup
CAM SW
PU ROLLER
SENSOR
P_OUT
from FUSER
P_OUT
from ROLLER
/PIN
P_IN
Toner C/T
DETECT SW
HIGH VOLTAGE PWB UNIT
OPTICAL
UNIT
(LSU)
LBP ENGINE
Fig. 6
5 – 11
AM-400DE
2.2.3 Signal assignment to the Printer CPU pins
Control unit
OA-2000 I/F /STS TXD Video I/F signals to/from the main CPU (OA-2000)
LSU APC_AUTO TMOV APC timing generation signal for line cycle
High voltage PWM0 FTIOB0 Clock for high voltage control clock PWMSIN
Sensor /PIN GPI Main unit paper feed detection (Paper-In)
Fusing RTH AN Thermistor analog input (temperature detection)
Main motor /MEN GPO Excitation enable
Pickup motor PUMA GPO Excitation phase A
Fan VFM GPO Fan ON/OFF control Power supply /ZC IRQ AC zero-cross signal input
Mechanism control CPU
Signal Pin No.
/SCLK SCK /CMD RXD /PCURES RESET /DCRDY GPO /DREADY GPO /EPRDY GPO /VSYNC GPO /CPRDY GPI /DPAGE GPI /DSRDY GPI
/SYNC TRGV Laser main scanning sync signal
IRQ PMCLK FTIOA1 Polygon motor clock LDEN GPO Laser circuit driving signal PMD GPO Polygon motor driving signal /LASERON GPO Laser on SAMPON GPO APC circuit sample signal SYN_LON GPO Next line laser on (SYNC)
PWM1 FTIOC0 Clock for high voltage control clock PWMSIN PWM2 FTIOD0 Clock for high voltage control clock PWMSIN /PWMINT IRQ Timer setting change interrupt MCON GPO Charge control TC/BSON GPO Transfer/DC bias control
/POUT1 GPI Paper eject detection (Paper-Out/fusing section) /POUT2 GPI Paper eject detection (Paper-Out/exit roller section) PE_BY GPI Detection of paper presence in the bypass tray OPEN_TRAY GPI Tray cover open/close detection /DOP GPI Door open/close detection (front and right doors) /CAMSW GPI Cam home position detection /ROLSNS GPI PU roller rotational position detection TCT2 GPI Toner cartridge identification TCT1 GPI TCT0 GPI
HLON GPO Heater lamp ON/OFF control
/MMRES GPO Reset input (Home State) STEP FTIOA Step clock
PUMB GPO Excitation phase B /PUMA GPO Excitation phase /A /PUMB GPO Excitation phase /B
PWRLY GPO Power relay ON/OFF signal
(Destination and initial toner charge)
Description
5 – 12
1) Main Motor control: Control the rotation of Main Motor and its mechanism
Main Motor is the stepper motor and drives the whole of the mech­anism of LBP. Main Motor is driven in 2-phase excitation by the driver (IC34: A3982SLB). The driver circuit is provided with the fuse (F7) to shut the motor power supply for the safety.
2) Pickup Motor control: Control the rotation of Pickup Motor and its mechanism
Pickup Motor is the stepper motor and drives the pickup mecha­nism of print paper. Pickup Motor is driven in 2-phase excitation by the driver (IC32: ULN2003A). The driver circuit is provided with the fuse (F6) to shut the motor power supply for the safety. Printer CPU controls the timing to pickup the paper with watching the roller sen­sor.
3) Fuser control: Control the temperature of the fuser unit
The heater lamp is controlled ON/OFF to adjust the temperature of the fusing unit. The heater lamp is driven by the driver (IC32: ULN2003A). The temperature of the fusing unit is monitored with the thermistor. The fuser control circuit is provided with the safety circuit to stop to light the heater lamp automatically when the ther­mistor detection temperature rises over unusual high temperature.
4) High Voltage Generator control: Control high voltage supplied to LBP
Main charger voltage to the drum unit
Developing bias voltage to the toner unit
Transfer charger voltage to the transfer roller
The high voltage outputted from High Voltage unit is controlled with PWM and ON/OFF signals ("MCON" and "TCON").
5) Laser Scanning control: Control Optical unit (LSU) to expose the OPC drum.
AM-400DE
The laser beam scanning light expose the OPC drum correspond­ing to the print data. The circuit of Optical unit (LSU) is composed with the scanning motor drive block and the laser beam drive block.
a) The control of the scanning motor drive block
The scanning motor is controlled by the clock of 2659.574Hz ("PMCLK") and ON/OFF signal ("PMD"). Optical unit (LSU) replies by the ready when the rotation of the motor becomes stable. The initialization of the laser beam control is started after the stable rotation of the scanning motor is confirmed.
b) The laser beam drive block
The timing of the signals is controlled in accordance with the specifications of Optical unit (LSU). Main CPU (IC1: OA-2000) outputs the print data ("PDATA") synchronized in the horizontal synchronous signal ("SYNC") from Optical unit (LSU). The print data is generated by Main CPU is directly transferred to Optical unit (LSU).
6) Sensor monitor: Monitor each sensor
Printer CPU controls the timing of the printing action with the follow­ing sensor information, and detect the paper jam, the paper empty and the paper size.
a) PIN: Detect carriage position of the paper
b) POUT1: Detect carriage position of the paper
c) POUT2: Detect carriage position of the paper
d) PEBY: Detect the paper on the bypass tray
e) OPEN_TRAY: Detect the tray cover setting
f) TCT2~0: Detect the toner cartridge setting
7) Communication with Main CPU
The printer information is communicated with Main CPU. At first, Main CPU transfers the command to Printer CPU on serial commu­nication I/F. Then, the action according to the command is exe­cuted, e.g. start printing and return the status of the printer.
2.2.4 Hardware controlled protection function
Device Protective action Circuit description Purpose Status to be activated
Heater lamp (fusing device)
Laser (LSU) 1 When the cover is
A fuse is installed in the following power supply lines: Optical unit (LSU) laser, Main motor, Pickup motor
1 The heater lamp is
forcibly turned off when the temperature of the fusing device (thermistor value) exceeds the upper limit.
open, the power sup­ply to the laser system circuits is shut off.
2 When the polygon
motor is inactive, the VIDEO signal is dis­abled (lighting prohib­ited).
3 The sampling of S/H
signal is disabled unless the VIDEO sig­nal is active (laser on).
The circuit forcibly turns off (resets) the relay control signal of the heater lamp when the ther­mistor value reaches 238 ± 6 °C. To turn on the heater lamp again, it is necessary to have the micro­computer change the relay con­trol signal PWRLY from 0 to 1. In other words, once the protective action is performed, the protec­tion is not canceled automatically even if the temperature detected by the thermistor decreases. Equipped with a regulator circuit for producing the laser system power (+5 V) supplied to the LSU from +24 V power supply inter­rupted by the interlock. Equipped with a circuit for enabling output of the VIDEO sig­nal when the polygon motor drive signal PMD is received.
Equipped with a circuit for enabling output of the S/H signal when the VIDEO signal is received.
Avoiding the abnormally high temperature of the fusing device.
Avoiding the exposure to laser beam.
Preventing the laser beam from focusing on only one point on the drum.
Avoiding abnormally high output of the laser.
The protection is activated when F/W is out of control, the microcomputer ADC is defec­tive, or other abnormality occurred. Normally, the heater lamp is turned on/off by moni­toring the temperature using F/W.
Malfunction due to the digital system circuit failure.
The polygon motor is stopped while debagging.
When F/W under develop­ment is defective or runs out of control, the protection is activated. Normally, each sig­nal is controlled following the sequence by F/W.
5 – 13
AM-400DE
2.3. Power section
The Control PWB requires multi voltage (+1.8V, +3.3V, +5V, +24V, +24VH).
+3.3V, +5V, +24V and +24VH are supplied from the power supply unit, and +1.8 V are generated by the regulator (IC8).
+3.3VR is generated by regulator (IC9) on the Control PWB, is the exclusive use as clean power for scanner.
INT5V is generated by regulator (IC22) on the Control PWB, is the exclusive use as interlocking power for Optical unit (LSU).
Its structure is as shown below.
Power Supply
Control PWB
Unit
+24VH(*) +24VH
+24V (**) +24V
KIA7805API (IC22)
INT5V
+5V +5V
XC6219B332PR (IC9)
+3.3VR
+3.3V +3.3V
FAN1117AD18X (IC8)
+1.8V
(*) Supplied always regardless of door open/close.
(**) Supplied only when door is close.
Fig. 7
5 – 14

3. Printer mechanism control block

3.1. Unit control
3.1.1 High voltage unit control
The high voltage unit outputs the following voltages:
• Main charger voltage (DC-950V + AC760V peak to peak)
• Transfer charger voltage (DC+3600V + AC760V peak to peak)
• Developing bias voltage (DC-180V)
The following signals are outputted from the CPU and Logic to con­trol the above voltages.
MCON
This signal is to turn on/off the main charger.
When this signal is outputted.
As a result, the main charger voltage is outputted to the secondary side of the transformer (B51).
TCON
This signal is to turn on/off the transfer charger and the developing bias voltage.
PWMSIN
This signal is to control the main charger voltage and the transfer charger voltage. The PWM pulse of about 300Hz is outputted.
This pulse waveform adds the AC component to the main charger voltage and the transfer charger voltage.
By changing the pulse duty of this signal, the main charger voltage and the transfer charger voltage are controlled.
AM-400DE
3.1.2 Electrical connection
CONTROL PWB
57
56
TCON
MCON
PWMSIN
16bit CPU IC21
Logic circuit
Constant voltage control circuit
Short protection circuit
Constant voltage control circuit
PWM control circuit
High Voltage PWB Unit
Oscillation circuit
Feedback circuit
Oscillation circuit
B1 Transformer
B51 Transformer
Feedback circuit
HV(+) Rectifier circuit
HV(-) Rectifier circuit
HV(-) Rectifier circuit
Constant voltage(+) circuit
250M
110M
Constant voltage(-) circuit
Short circuit
TC
SV
DV
MC
FU-EARTH
LASER MFP
Transfer Roller
OPC DRUM
Separation electrode
Supply Roller
Developing Roller
Doctor
Charger Roller
Heat Roller
Pressure Roller
Fig. 8
5 – 15
AM-400DE
Laser
nHSYNC
ON
OFF
Non-Active
Active
16.26mm
27.88µs
216mm
370.34µs
1 LINE
328.95mm
564.0µs
>3.75mm
>6.43µs
1.0µ s max.
Effective printing width
Effective width of printing data
F-number/Focal Length:104.7mm
VIDEO CLK:13.7774MHz
Polygon rotation speed/Rotation speed:26595.7min
-1
3.1.3 Laser scanning unit
This unit controls the laser beam power and laser beam scanning.
The control is performed with the signals inputted outputted to or from the CPU and Logic circuit.
Laser scanning unit (LSU)
Laser
LD PWB
Laser start position sensor
Photodiode
Laser diode
LD PWB
Lens
Lens
Polygon mirror
Fig. 9
Laser Scanning Unit (LSU)
Scan
Lens
Polygon motor
1) Signal functions
PMCLK
Clock signal for driving the scanning motor. (2659.57Hz)
PMD
Scanning motor ON/OFF signal.
HSYNC
This signal is outputted when the laser beam scanned by the laser beam sensor signal is sensed by sensor (Photo diode). Used for the left margin control.
VIDEO
This signal is used to control the laser diode emitting. Not only when the laser beam is emitted to perform the LEND pro­cess, but also when the laser beam is emitted as image data, 16bit CPU (IC21) controls and the signal is outputted from video terminal.
2) Laser beam power control
The laser beam power is controlled in the laser scanning unit.
This circuit functions to keep the laser beam output power at a con­stant level.
The laser beam output is monitored with photo diode for monitor. When the laser beam output rises above the specified value, the impedance of photo diode is decreased to decrease the monitor input voltage of the laser diode control IC.
Then the laser diode drive voltage is decreased to decrease the laser beam output to the specified level.
When the laser beam output is decreased below the specified level, the contrary operation are performed.
3) Timing of scanning
nHSYNC
nLDEN
nVIDEO nS/H
+5V
GND
CLOCK nREADY
nSTART
GND
+24V
Amp.
8
Laser diode driver
4
3
2
6
1, 5, 7
Polygon motor
Motor driver
1
2
3
4
5
Photodiode
Laser diode
Motor
Fig. 10
Laser
Laser
Polygon motor
Polygon mirror
Fig. 11
a) Scanning motor interface
Pin No. Terminal I/O Function
1 CLOCK Input Clock input 2 nREADY Output Motor rotation detect signal
"L" : Synchronous "OPEN" : Asynchronous
3 nSTART Input Motor control signal
"L" : Start
"OPEN" : Stop 4GND-GND 5 +24V - Power supply (+24V)
5 – 16
b) Laser Drive circuit operation timing
Laser drive circuit/LD Drive Circuit
nHSYNC
nLDEN
nVIDEO
nS/H
Laser output
Settling time/Settling Time
3ms above/More than 3ms
APC correction time/Auto Power Control Time
10µs above/More than 10µs
Laser OFF time/LD OFF Time
3µs following/Less than 3µs
Fig. 12
c) Each signal injection timing of the scanner motor
24V
0V
H
L
H
L
UNLOCK
Asynchronous
LOCK
synchronous
UNCHECK
CHECK
GO
STOP
Min 10 ms
Min 0.1s Min 0.1s
Starting time
(Max 0.5s)
Min 1s
Min 1s
Min 10 ms
IN
OUT
CHECK
signal monitoring
DC24V
CLOCK
nSTART
nREADY
nREADY
Speed
Jitter etc.
Fig. 13
d) Laser Drive circuit interface
Pin No. Terminal I/O Function
4 nLDEN Input Signal enables Laser driven
"H" : Disable "L" : Enables
2 nS/H Input APC control signal
"H" : Hold "L" : Sampling
3 nVIDEO Input Laser control signal
"H" : Laser OFF
"L" : Laser ON 1 GND - GND 5 GND - GND 7 GND - GND 6 +5V - Power supply (+5V) 8 nHSYNC Output
(Open-
collector)
Horizontal synchronize signal
"H" : Asynchronous
"L" : Synchronous
Min 10 ms
AM-400DE
3.1.4 Fusing unit control
The fusing section is heated by the heater lamp (500W). The heater lamp is controlled (turned on/off) to keep the optimum temperature. The following signals are outputted by the CPU and Logic circuit for control.
1) Signal functions
HLON
This signal is to turn on/off the heater lamp. When this signal is outputted turn on triac TRA1. Then an AC power is supplied to the heater lamp to turn on the heater lamp.
RHT
This is the output signal of the thermistor which detects the sur­face temperature of the heat roller. It is inputted to the CPU. The heater lamp is turned on/off depending on the value of RTH volt­age.
2) Protect against overheat
Though the heater lamp ON signal (HLON-) is normal, if triac TRA1 are kept ON, overheat may result.
To prevent against this, temperature fuses are used.
When the fusing roller surface temperature exceeds about 214 degrees C, the temperature fuse blows off to open the +24V power line which drives the power relay RL1, opening the power line for the photo triac TRA1. Therefore, the power is not supplied to the heater lamp.
A temperature fuse is also provided in the heater lamp power line. In case of overheating, the heater lamp power line is opened directly.
3) Timing of temperature detection and heater control
As shown by the following timings, four values of software ther­mistor voltage are input as A/D conversion values. The mean value of two medians among these four is regarded as the newest ther­mistor value (temperature).
• The value is compared with the temperature (200°C) control value every 100 ms.
• If the value is higher than 200°C, the heater becomes OFF. If lower, the heater becomes ON.
• The heater ON timing is in accordance with the timing of Power Zero Cross interrupt.
Heater ON/OFF Control
Inputting thermistor values
Timings of thermistor value input and heater control
Heater ON/OFF Control
T (x 10ms)
4) Heater control (Temperature control)
Control method
a) Base machine printing (Copy, List, Receiving)
• Temperature control is started when data to be printed are
produced (or when slips are to be prepared).
• Temperature is controlled at 200 °C. (Heater OFF over 200
°C. Heater ON below 200 °C.)
• After printing, temperature is not controlled. (Heater is not
turned ON.)
• Fan motor starts revolving from the beginning of temperature
control and stops 120 seconds after printing is finished.
5 – 17
Fig. 14
AM-400DE
b) PC printing
• Temperature control is started when PC starts printing.
• Temperature is controlled at 200 °C. (Heater OFF over 200 °C. Heater ON below 200 °C.
• After printing, temperature is not controlled.
• Fan motor starts revolving from the beginning of temperature control and stops 120 seconds after printing is finished.
Temperature control is not started from the start of printing because the first copying time should be within 28 seconds.
In case of PC printing (Single sheet/continuous)
200°C
Printing started
Printing finished
Temperature control started
HLON
OFF
FAN
Fig. 15
3.1.5 Electrical connection
Heater lamp: The 500W halogen lamp is used. Thermistor: Thermistor of chip type with good response is
used to respond to rapid heating of the heat
roller. Temperature fuse 1 (152°C):
Temperature fuse 2 (216°C):
The heat roller surface temperature is maintained to the optimum level by controlling ON/OFF of the heater lamp according to the tempera­ture data (voltage) from the thermistor. The heat roller surface temper­ature is controlled to 200°C. Two temperature fuses are provided to protect the heat machine from an abnormally high temperature in the fusing section. The heater lamp is lighted by the AC power.
Temperature fuse 1 is installed to the fusing
cover. It blows off when the ambient tempera-
ture of the fusing cover rises abnormally
(152°C).
Temperature fuse 2 is in close contact with the
heat roller. It blows off when the heat roller tem-
perature rises abnormally high (216°C).
16bit CPU
(IC21)
CNPW
POWER PWBCONTROL PWB
IC32
71
11
6
73
PWRLY
RTH
75
CIRCUIT
+5V
HLON-
PW
CNRTH
+5V1
2RTH
RLY-
CNAC
ACN3
1ACL
PC2
+24VMAIN+24VS
CN6
+24VMAIN1
3+24VS
TRA1
RL1
CN
CNHT
HT
L3
N1
Heater lamp
Thermistor
Temperature fuse 1 (152°C)
Temperature fuse 2 (216
°
C)
Fig. 16
5 – 18

[3] Circuit description of LIU PWB

1. LIU block operation description

1.1. Block diagram
AM-400DE
LINE
EXT.TEL
SURGE
PROTECTION
CIRCUIT
CURRENT
CIRCUIT
LIU
TAXPULSE
FILTER
HI
LO
CI
CIRCUIT
REC
VREF
HI
ACTIVE
LO
HI
LO
TXOUT
RXIN RXIN
CHOKE
DPMUTE
DPON
CML /CML
/EXHS /EXHS
/CI
CONTROL
TXOUT
HI
LO
DPMUTE
DPON DPON
/CI
SPEAKER
+5V
+24VA
DG
VREF
TXA2
TXA1
RIN
CI
IC10
LOGIC IC
HI
LO
MODEM
(FM336PLUS)
DPMUTE
PB_DATA
BZOUT
SPMUTE
VOLC VOLB VOLA
CML
DA-2000
Fig. 17
1.2. Circuit description
The LIU PWB is composed of the following 9 blocks.
1. Surge protection circuit
2. On-hook status detection circuit
3. Dial pulse generation circuit
4. CML relay
5. Matching transformer
6. Hybrid circuit
7. Signal selection
8. CI detection circuit
9. Power supply and bias circuits
1.3. Block description
1.3.1 Surge Protection circuit
This circuit protects the circuit from the surge voltage occurring on the telephone line.
• The VA1 protects the circuit from the 300V or higher line surge volt­ages.
• The AR1 and AR2 protect the circuit from the 500V or higher verti­cal surge voltage.
• The ZD5 and ZD7 control the voltage generated on the secondary side of matching transformer to 4.7V.
1.3.2 On-hook status detection circuit
The on-hook status detection circuit detects the status of the push speaker key, and the status of the hook of a telephone externally con­nected.
• External telephone hook status detection circuit (/EXHS)
This circuit comprises the current sensor IC1, resistors R102 and capacitor C1. When an external telephone is connected and enters the on-hook mode, the output of current sensor IC1 responds. The status signal /EXHS is input to OA-2000 by way of IC10 (Logic IC).
/EXHS LOW: EXT. TEL OFF-HOOK
/EXHS HIGH: EXT. TEL ON-HOOK
1.3.3 Dial pulse generation circuit
The pulse dial generation circuit comprises the photo-coupler PC1 and PC2, polarity guard REC1, and transistor Q3. The dial pulse turns on CML, controls the base current of PC1 and PC2, supplying the DP and DPMUTE signal to the photo-coupler PC1 and PC2, and generates the DP and DPMUTE signal by making the TEL circuit make and brake.
1.3.4 CML relay
The CML relay switches over connection to the matching transformer T1 while the FAX is being used.
1.3.5 Matching transformer
The matching transformer performs electrical insulation from the tele­phone line and impedance matching for transmitting the FAX signal.
5 – 19
AM-400DE
1.3.6 Hybrid circuit
The hybrid circuit performs 2-wire-to-4-wire conversion using the IC of operational amplifier, transmits the voice transmission signal to the line, and feeds back the voice signal to the voice reception circuit as the side tone.
1.3.7 Signal selection
The following signals are used to control the transmission line of FAX signal. For details, refer to the signal selector matrix table.
[Control signals from output port]
Signal Name Description
Line connecting relay and DP generating relay
CML0
SP MUTE
VOL A VOL B
VOL C (the circuit is located in the
control PWB.)
DPON H: Active choke ON
DPMUTE H: DPMUTE ON
H: Line make L: Line break Speaker tone mute control signal H: Muting (Power down mode) L: Muting cancel (Normal operation)
Speaker volume control signal
VRSEL1 VRSEL2 matrix
VOL A
L H L
VOL B
L L L
VOL C
L L H
RING./
Receiving
High
Middle
Low
Buzzer
High
Low
L: Active choke OFF
L: DPMUTE OFF
-
DTMF
High
Middle
Low
[Signals for status recognition according to input signals]
Signal Name Function
CI Incoming call (CI) detection signal
H: The handset or external telephone is in the
/EXHS
on-hook state. L: The handset or external telephone in the off­hook state.
[Other signals]
Signal Name Function
TXOUT
RXIN
Transmission (DTMF) analog signal output from modem Reception (DTMF, others) analog signal input into modem
No. Signal Name (CNLIU1) No. Signal Name (CNLIU1)
1RXIN7 +5V 2TXOUT8 DG 3 /CI 9 +24VA 4 /EXHS 10 E-RLY 5 DPON 11 DPMUTE 6 CML 12 N.C.
1.3.8 CI detection circuit
The CI detection circuit detects the CI signals of 15.3 Hz to 68 Hz. A CI signal, which is provided to the photo-coupler PC4 through the C14 (0.47 µF), R5 (47K), and ZD4 when the ring signal is inputted from the telephone line.
1.3.9 Power supply and bias circuits
The voltages of +5V and +24VA are supplied from the control PWB unit.
(Example: Fax signal send)
CURRENT
LINE
EXT.TEL
SURGE
PROTECTION
CIRCUIT
CIRCUIT
LIU
TAXPULSE
FILTER
HI
LO
CI
CIRCUIT
REC
VREF
HI
ACTIVE
LO
CHOKE
HI
LO
TXOUT TXOUT
RXIN RXIN
DPMUTE
DPON
CML CML
/EXHS /EXHS
/CI
CONTROL
HI
LO
DPMUTE
DPON DPON
/CI
SPEAKER
+5V
+24VA
DG
VREF
TXA2
TXA1
RIN
CI
IC10
LOGIC IC
HI
LO
MODEM
(FM336PLUS)
DPMUTE
PB_DATA
BZOUT
SPMUTE
VOLC VOLB VOLA
CML
DA-2000
Fig. 18
5 – 20

[4] Circuit description of power supply PWB

This power supply unit has the function to convert the AC230 V (50/60 Hz) to DC+24V, and provide these output to the equipment. The fol­lowing explains the function of each block. (See Fig. 19)

1. Filter circuit block

This circuit reduces the outgoing noise through the input lines which is generated in the power supply unit, and prevents the invasion of the noise from the lines. (The excessive surge such as thunder is pre­vented by the varistor (Z1).)

2. Rectification and smoothing circuit block

This circuit rectifies and smoothes AC input, and provides the DC volt­age to the switching circuit block.

3. Switching circuit block

This circuit converts the DC voltage (provided from the rectification and smoothing circuit block) to the high-frequency pulse voltage by FET (Q1)’s switching (on/off repeat), and provides the energy to the transformer (T1). It discharges the energy (charged during the FET ON time) to the secondary side during the FET OFF time through the secondary windings. The output voltages on the secondary side pro­vided by the energy depend on the ratio of the winding turns (primary : secondary) etc..

4. Control circuit block

This circuit block controls the output voltage by transmitting the detected +24V voltage to the primary control circuit through the photo­coupler (PC1). In case of the over-current, this circuit reduces provid­ing the energy to the transformer. In case of the over-voltage, this cir­cuit reduces providing the energy to the transformer by letting the power-zener (D104 : connected between the +24V output voltage and GND) into the short mode and letting the over-current protection circuit work.
AM-400DE

5. +24 V SUB output circuit block

This circuit block rectifies and smoothes the high-frequency pulse volt­age provided by the transformer, and provides the DC+24V output to the equipment. The output voltage is adjusted by the variable resistor (VR101).

6. +24 V MAIN output circuit block

This circuit block supplies DC+24V output to equipment through a con­nector (CN2) from +24V provided by the transformer.

7. +5 V output circuit block

This circuit block rectifies and smoothes the high-frequency pulse volt­age provided by the transformer and provides about DC+7V output to the regulator IC, and provides the DC+5V output to the equipment.

8. +3.3 V output circuit block

This circuit block supplies +3.3V output that is stable by the chopper circuit which considered the above-mentioned +24V as the input. This system supplies energy to load through L271 during the ON of MOS FET Q271, and is making the energy accumulated L271 return to load by D271 during the OFF. Control of constant voltage is performing +5V output by applying detection and feedback by Integrated circuit regula­tor IC201. It maintains an output OFF state until Q274 turns off a short circuit protection circuit and it re-switches on a power supply, when output voltage becomes lower than the Zener potential of D274.

9. AC output circuit block

This circuit block supplies AC output from AC input to equipment through the optical-isolator (PC2) and the power-relay (RL1) by sig­nals (+24VS, /HEATER_ON, /PWRLY).

10. Zero cross circuit block

This circuit block rectifies the AC input, and provides the ZC signal to equipment through the photo-coupler (PC3).
Input
(1) Filter circuit block
AC OUT
(9) AC output circuit block
(2) Rectification and smoothing circuit block
(10) Zero-cross circuit block
(3) Switching circuit block
(4) Control circuit block
Power relay
Optical isolator
Transformer
Photo-coupler
Fig. 19
(5) +24V circuit block
(6) +24V Main circuit block
CN2
(7) +5V circuit block
(8) +3.3V circuit block
+24VS
/HEATER_ON
/PWRLY
+24V MAIN
+24V SUB
+5V
+3.3V
GND
/ZC
5 – 21
AM-400DE

11. Waveforms of Power circuit

At standby
C8
BEA1
BL02RN2
100P
Q1 2SK2717
T1
83D1
86
D101
680
1SS133
YG861S15R
5
4
3
1
100P
C11
2
C16
+
13
330/35
C101
12
D301 CB833-04
9
10
+
330/16
C301
7
11
FG
C15
0.010.01
HZS30
D2
R2
270K
270K
R3
C9
270K
R4
0.01
R19 10
R5
15K
Q2
D8
JUMPER
R13
1.2K
D7
R7
1SS133
220
R6 1K
R11
8.2K
D5
HZS9
33K
R8
D4
1SS133
R17
R9
100
R12
22K
D6
PC1
TLP421F
R10
6.8K
4700P
C10
When the over current protection circuit works
HZS30
D2
R2
270K
270K
C8
BEA1
BL02RN2
100P
Q1 2SK2717
R3
270K
R4
R19 10
R5
15K
R7 220
C9
0.01
R6 1K
D8
JUMPER
R11
8.2K
D5
R13
1.2K
Q2
HZS9
33K
R8
D7 1SS133
T1
83D1
86
D101
YG861S15R
5
4
1SS133
PC1
R10
6.8K
TLP421F
D6
R17
1SS133
3
680
1
100P
C11
2
C16
D4
R9
100
R12
22K
4700P
C10
+
13
330/35
C101
12
D301 CB833-04
9
10
+
330/16
C301
7
11
FG
C15
0.010.01
5 – 22

[5] Circuit description of CIS unit

1. CIS

CIS is an image sensor which scans the original paper in close contact with the full-size sensor, being a color type with the pixel number of 5,148 dots and the scanning density of 600 dpi. It is composed of sen­sor, rod lens, LED light source of Red, Green and Blue, Analog mem­ory circuits and so on.

2. Block diagram

CIS UNIT
12 8 1 5 2
9B10
NC
G11R
LED GND
AO
C
C
VLED VREF GND
Fig. 20

3. Waveform

3.1. Timing chart 1
1) CLK timing chart
4MHz
CISCLK (CNCIS 7pin)
4673
R
C
VDD SP CLK GND
C
RR
C
Approx. 3.3V
0V
AM-400DE
3.2. Timing chart 2
1) Reading color document
1.7ms 1.7ms 1.7ms
CIS R LED(*) (Q31-B) CIS G LED(*) (Q30-B)
CIS B LED(*) (Q29-B)
CIS CLK
CIS SP
Ao
Fig. 23
(*): The pulse width of CIS R LED/CIS G LED/CIS B LED are
adjusted automatically every scan, so it is a change.
2) Reading monochrome document
1.7ms 1.7ms 1.7ms
CIS R LED(*)
CIS G LED(*)
CIS B LED(*)
CIS CLK
CIS SP
Ao
Fig. 24
(*): The pulse width of CIS R LED/CIS G LED/CIS B LED are
adjusted automatically every scan, so it is a change.
4MHz
4MHz
CISSP (CNCIS 6pin)
Approx. 1~1.5V (White level)
Ao
(CNCIS 1pin)
Approx. 0.8V (Offset level) 0V
Fig. 21
2) Data output timing chart
After turning on the SP pulse, the analog output starts from the set­ting up point of 64 clock pulse.
1 2 52 53 54 64 65 66
CISCLK
CISSP
Ao
VREF Output Perlod(52pixels)
1~52pixels
Dummy Output
*1
53~64pixels
Analog Output Period
65~5212pixels
Fig. 22
5 – 23
AM-400DE

[6] Circuit description of operation panel PWB

1. Operational description

1) Operation panel PWB
The operation panel PWB consists of 30 keys.
This PWB includes the eight STRB lines (8bit) and the four SEN lines (4bit). The eight STRB lines are controlled by OA-2000 (CPU) on control PWB and the four SEN lines return signals to control PWB. The LED on this PWB is also controlled by LEDON (1bit sig­nal) from control PWB. The LD (5bit) include signal line for four LCD data lines and RS line.
2) LCD
The LCD uses the one-chip LCD driver IC to display 16 digits x 1 line. The LCD display density is not controlled.

2. Block diagram

SEN[3:0]
KEY MATRIX
STRB[7:0]
LED ON
LCD
LD[4:0]
E
R
LED
Fig. 25
5 – 24

[7] Data flow chart

1. COPY

AM-400DE
Control PWB

2. FAX/SEND

3. FAX RECEIVE

PSTN
CIS
CIS
TEL LINE
OA-2000
1
(IC1)
2
Control PWB
1
2
LIU PWB
SDRAM (IC4)
OA-2000 (IC1)
SDRAM (IC4)
1
4
3
4
3
Control PWB
FAX
MODEM
(IC18)
LSU I/F controlled by Printer CPU
FAX MODEM (IC18)
2
OA-2000
(IC1)
3
SDRAM (IC4)
4
6
5
5
LSU I/F controlled by Printer CPU
Laser Scan Unit
LIU PWB
Laser Scan
Unit
Printing
TEL LINE
PSTN
Printing

4. PC PRINT

5. PC SCAN

PC
1
USB
Control PWB
OA-2000
(IC1)
2
SDRAM
(IC4)
CIS
4
3
Control PWB
1
OA-2000
2
SDRAM
LSU I/F controlled by Printer CPU
(IC1)
3
(IC4)
4
USB
5
Laser Scan
Unit
PC
Printing
5 – 25
AM-400DE

[8] Troubleshooting

1. Printer error code

PAPER JAM The roller sensor could not detect its home position
after driving the pick up motor for the specified period.
The roller sensor could not become NOT-Active after passing the specified period from picking up paper.
SYSTEM ERROR [P2]
SYSTEM ERROR [P3]
SYSTEM ERROR [P4] ROM or RAM error was detected on the printer
SYSTEM ERROR [P5] High temperature error was detected.
SYSTEM ERROR [P6] Low temperature error was detected.
SYSTEM ERROR [P7]

2. Scanner message

The printer controller detected the optical unit (LSU) error.
The external interrupt signal for optical unit (LSU) or High-voltage control did not become active after passing the specified period.
Thermistor error was detected.
control unit.
Communication error between the main controller and the printer controller was detected.
CHK SCANNER LOCK The scanner unit could not detect change point of
home postion. (ON -> OFF or OFF -> ON)
5 – 26
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