Kyocera FS-6950DN Service manual

Download

Page 1

FS-6950DN

SERVICE

MANUAL

Published in January 2006

842F7110

2F7SM060

First Edition

Page 2

Revision history

Revision Date Replaced pages Remarks

Page 3

Safety precautions

This booklet provides safety warnings and precautions for our service personne l to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.

Page 4

Safety warnings and precautions

Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below:

DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

WARNING: Serious bodily injury or death may result from insufficient attention to or incorrect compliance

with warning messages using this symbol.

CAUTION: Bodily injury or damage to property may result from insufficient attention to or incorrect

compliance with warning messages using this symbol.

Symbols

The triangle ( ) symbol indicates a warning including danger and caution. The specific point of attention is shown inside the symbol.

General warning.

Warning of risk of electric shock.

Warning of high temperature.

indicates a prohibited action. The specific prohibition is shown inside the symbol.

General prohibited action.

Disassembly prohibited.

indicates that action is required. The specific action required is shown inside the symbol.

General action required.

Remove the power plug from the wall outlet.

Always ground the copier.

Page 5

1.Installation Precautions

WARNING

• Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check

that it is adequate for the rated current. .............................................................................................

• Connect the ground wire to a suitab le g rou nd ing point . No t g roun ding the co pier may cause fir e o r electric shock. Connecting the earth wire to an object not approved for the purpose may cause explosion or electric shock. Never connect the ground cable to any of the following: gas pipes, lightning rods, ground cables for telephone lines and water pipes or faucets not approved by the

proper authorities. ............................................................................................................................

CAUTION:

• Do not place the copier on an infirm or angled surface: the copier may tip over, causing injury. .......

• Do not install the copier in a humid or dusty place. This may cause fire or electric shock. ................

• Do not install the copier near a radiator, heater, other heat source or near flammable material.

This may cause fire. .........................................................................................................................

• Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool

as possible. Insufficient ventilation may cause heat buildup and poor copying performance. ...........

• Always handle the machine by the correct locations when moving it. ...............................................

• Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may cause

the copier to move unexpectedly or topple, leading to injury. ...........................................................

• Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is accidentally ingested, drink a lot of water to dilute it in the stomach and obtain medical attention immediately. If it gets into the eyes, rinse immediately with copious amounts of water and obtain medical

attention. ......................................................................................................................................

• Advice customers that they must always follow the safety warnings and precautions in the copier’s

instruction handbook. .....................................................................................................................

Page 6

2.Precautions for Maintenance

WARNING

• Always remove the power plug from the wall outlet before starting machine disassembly. ...............

• Always follow the procedures for maintenance described in the service manu al and other related

brochures. ....................................... ... ... ... .... ... .......................................... ... ... .... ............................

• Under no circumstances attempt to bypass or disable safety features in cluding safety mechanisms

and protective circuits. .......................................... .... ... ... ... .......................................... ... .................

• Always use parts having the correct specifications. ..........................................................................

• Always use the thermostat or thermal fuse specified in the service manual or other related brochure when replacing them. Using a piece of wire, for example, could lead to fire or other serious

accident. ..........................................................................................................................................

• When the service manual or other serious brochure specifies a distance or ga p for inst alla tion of a

part, always use the correct scale and measure carefully. ................................................................

• Always check that the copier is correctly connected to an outlet with a ground connection. .............

• Check that the power cable covering is free of damage. Check that the power plug is dust-free. If it

is dirty, clean it to remove the risk of fire or electric shock. ..............................................................

• Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may

damage eyesight. ....................................... ... .... ... ... ... ... .... ... ... .......................................................

• Handle the charger sections with care. They are charged to high potentials and may cause electric

shock if handled improperly. ............................................................................................................

CAUTION

• Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are

safely secured so they will not be caught in rotating sections. ..........................................................

• Use utmost caution when working on a powered machine. Keep away from chains and belts. ........

• Handle the fixing section with care to avoid burns as it can be extremely hot. ..................................

• Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause

abnormally high temperatures. ........................................................................................................

Page 7

• Do not remove the ozone filter, if any, from the copier except for routine replacement. ....................

• Do not pull on the AC power cord or connector wires on high-voltage components when removing

them; always hold the plug itself. ................................ ... .... ... ... ... .... ... ..............................................

• Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a

cable cover or other appropriate item. .............................................................................................

• Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks. ........

• Remove toner completely from electronic components. ...................................................................

• Run wire harnesses carefully so that wires will not be trapped or damaged. ....................................

• After maintenance, always check that all the parts, screws, connectors and wires that were removed, have been refitted correctly. S pecial atte ntion shou ld be p aid to an y forgot ten connector,

trapped wire and missing screws. ...................................................................................................

• Check that all the caution labels that should be present on the machine according to the instruction

handbook are clean and not peeling. Replace with new ones if necessary . ......................................

• Handle greases and solvents with care by following the instructions below: .....................................

Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely. Ventilate the room well while using grease or solvents. Allow applied solvents to evaporate completely before refitting the covers or turning the power switch on. Always wash hands afterwards.

• Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to

fire in a furnace, etc. .......................................................................................................................

• Should smoke be seen coming from the copier, remove the power plug from the wall outlet imme-

diately. ............................................................................................................................................

3.Miscellaneous

WARNING

• Never attempt to heat the drum or expose it to any organic solvents such as alcohol, other than the

specified refiner; it may generate toxic gas. .....................................................................................

Page 8

This page is intentionally left blank.

Page 9

CONTENTS

1-1 Specifications

1-1-1 Specifications..........................................................................................................................................1-1-1

1-1-2 Parts names............................................................................................................................................1-1-3

(1) Overall...............................................................................................................................................1-1-3

(2) Operation panel.......................................................... ... ....................................................................1-1-4

1-1-3 Machine cross section ............................................................................................................................1-1-5

1-2 Installation

1-2-1 Installation environment..........................................................................................................................1-2-1

1-2-2 Unpacking and installation......................................................................................................................1-2-2

(1) Installation procedure........................................................................................................................1-2-2

1-2-3 Installing the expanding memory (optional) ..........................................................................................1-2-10

1-2-4 Installing the memory card or hard disk (optional)................................................................................1-2-11

1-2-5 Installing the network interface card (optional) .....................................................................................1-2-12

1-3 Maintenance Mode

1-3-1 Maintenance mode .................................................................................................................................1-3-1

(1) Executing a maintenance item..........................................................................................................1-3-1

1-4 Troubleshooting

1-4-1 Paper misfeed detection.........................................................................................................................1-4-1

(1) Paper misfeed indication............................................ ... .. ........................................ ..........................1-4-1

(2) Paper misfeed detection....................................................................................................................1-4-1

1-4-2 Self-diagnostic function...........................................................................................................................1-4-2

(1) Self-diagnostic function.....................................................................................................................1-4-2

(2) Self diagnostic codes ........................................................................................................................1-4-2

1-4-3 Image formation problems......................................................................................................................1-4-8

(1) Completely blank printout..................................................................................................................1-4-9

(2) All-black printout..............................................................................................................................1-4-10

(3) Dropouts..........................................................................................................................................1-4-11

(4) Black dots........................................................................................................................................1-4-11

(5) Black horizontal streaks..................................................................................................................1-4-12

(6) Black vertical streaks.......................................................................................................................1-4-12

(7) Unsharpness...................................................................................................................................1-4-12

(8) Gray background........................................................... ..................................................................1-4-13

(9) Dirt on the top edge or back of the paper........................................................................................1-4-13

(10) Undulated printing at the left edge (scanning start position)...........................................................1-4-13

1-4-4 Electric problems ..................................................................................................................................1-4-14

1-4-5 Mechanical problems............................................................................................................................1-4-16

1-5 Assembly and Disassembly

1-5-1 Precautions for assembly and disassembly............................................................................................1-5-1

(1) Precautions .......................................................................................................................................1-5-1

1-5-2 Outer covers ...........................................................................................................................................1-5-2

(1) Detaching and refitting the top cover.................................................................................................1-5-2

(2) Detaching and refitting the right cover and left cover........................................................................1-5-3

1-5-3 Paper feed section..................................................................................................................................1-5-4

(1) Detaching and refitting the paper feed assembly (paper feed roller and pickup roller).....................1-5-4

(2) Detaching and refitting the retard roller.................................... ... .................................... ... ...............1-5-5

(3) Detaching and refitting the registration upper and lower roller..........................................................1-5-6

(4) Detaching and refitting the MP tray paper feed roller........................................................................1-5-8

1-5-4 Developer section...................................................................................................................................1-5-9

(1) Detaching and refitting the developer unit.........................................................................................1-5-9

1-5-5 Drum section.........................................................................................................................................1-5-10

(1) Detaching and refitting the drum unit ..............................................................................................1-5-10

(2) Detaching and refitting the main charger unit..................................................................................1-5-11

1-5-6 Transfer section.............................................. ... ...................................................................................1-5-12

(1) Detaching and refitting the transfer roller........................................................................................1-5-12

1-5-7 Fuser section ................................................................ ... .................................... ... ..............................1-5-14

(1) Detaching and refitting the fuser unit...............................................................................................1-5-14

(2) Detaching and refitting the fuser heater lamp M and S...................................................................1-5-15

(3) Detaching and refitting the heat roller .............................................................................................1-5-17

(4) Detaching and refitting the press roller................. ..................................... .. ....................................1-5-18

(5) Detaching and refitting the fuser thermistor M, fuser thermistor S and thermal cutout...................1-5-19

1-5-8 PWBs....................................................................................................................................................1-5-21

(1) Detaching and refitting the engine PWB .........................................................................................1-5-21

(2) Detaching and refitting the main PWB ............................................................................................1-5-25

Page 10

(3) Detaching and refitting the power source unit.................................................................................1-5-27

1-5-9 Others...................................................................................................................................................1-5-29

(1) Detaching and refitting the paper feed drive unit.............................................................................1-5-29

(2) Detaching and refitting the main drive unit......................................................................................1-5-30

(3) Detaching and refitting the laser scanner unit.................................................................................1-5-31

1-6 Firmware

1-6-1 Downloading firmware ............................................................................................................................1-6-1

(1) Downloading the firmware from the parallel interface .......................................................................1-6-2

(2) Downloading the firmware from the memory card..................................................... ........................1-6-3

(3) Downloading the firmware from the USB memory ............................................................. ...............1-6-5

2-1 Mechanical construction

2-1-1 Paper feed section..................................................................................................................................2-1-1

(1) Paper cassette paper feeding...........................................................................................................2-1-1

(2) MP tray paper feed section ...............................................................................................................2-1-2

(3) Paper feed conveying section...........................................................................................................2-1-3

2-1-2 Drum section...........................................................................................................................................2-1-4

(1) Drum section.....................................................................................................................................2-1-4

2-1-3 Expose section........................................................................................................................................2-1-5

(1) Laser scanner unit.............................................................................................................................2-1-5

2-1-4 Developing section..................................................................................................................................2-1-7

(1) Developer unit................................... .................................... ... .........................................................2-1-7

2-1-5 Transfer/separation section ....................................................................................................................2-1-8

(1) Transfer/separation section....................................................................................... ........................2-1-8

2-1-6 Cleaning section .....................................................................................................................................2-1-9

2-1-7 Fuser section ................................................................ ... .................................... ... ..............................2-1-10

(1) Fuser unit ........................................................................................................................................2-1-10

2-1-8 Paper exit section/rear unit...................................................................................................................2-1-12

(1) Paper exit section/rear unit..............................................................................................................2-1-12

2-1-9 Duplex conveying section.....................................................................................................................2-1-14

(1) Duplex conveying section................................................................................................................2-1-14

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout ..............................................................................................................................2-2-1

(1) Electrical parts layout........................................................................................................................2-2-1

2-3 Operation of the PWBs

2-3-1 Power source unit...................................................................................................................................2-3-1

2-3-2 Engine PWB............................................................................................................................................2-3-3

2-3-3 Main PWB...............................................................................................................................................2-3-8

(1) Wiring diagram..................................................................................................................................2-4-1

(2) Repetitive defects gauge...................................................................................................................2-4-2

Page 11

1-1 Specifications

1-1-1 Specifications

Printing method...............................Semiconductor laser and electrophotography

Printing speeds...............................Simplex:

A3: 16 ppm A4: 32 ppm A5: 32 ppm

Duplex:

A3: 10 ppm A4: 23 ppm

Paper sizes.....................................Paper cassette:

A3, A4, A5, B4, B5, ledger, letter, legal, envelope C4, envelope C5, ISO B5, executive, oficio II, 8 kai, 16 kai, folio, and custom

MP tray:

A3, A4, A5, A6, B4, B5, B6, ledger, letter, legal, envelope monarch, envelope DL, envelope C4, envelope C5, ISO B5, executive, envelope # 6, envelope # 9, envelope # 10, hagaki, oufuku hagaki, oficio II, 8 kai, 16 kai, statement, folio, yokei 2, yokei 4, and custom

Paper types.....................................Paper cassette:

Plain, preprinted, bond, recycled, rough, letterhead, color, prepunched, high quality, and custom

MP tray:

Plain, transparency, preprinted, labels, bond, recycled, vellum, rough, letterhead, color, prepunched, envelope, cardstock, thick, high quality, and custom

Paper feed source capacity............Paper cassette: 250 sheets (80 g/m

MP tray: 100 sheets (80 g/m

Output ray capacity.........................Top tray: 250 sheets (80 g/m

Face up tray (optional): PT-430: 250 sheets (80 g/m

Photo conductor..............................a-Si (diameter: 30mm)

Charging system.............................Contact charger roller method (positive charging)

Developing system .........................Single component developer

Transfer system..............................Transfer roller

Separation system..........................Separation brush (DC bias)

Fixing System.................................Heat fusing with a heat roller and a press roller

Charge erasing system...................Light emitted by LED

Cleaning system.............................Counter blade cleaning

Warm-up time (22

°C, 60%RH) ......Power on: 15 seconds or less

Sleep: 15 seconds or less

First print out (A4)...........................23 seconds or less (Ready)

Resolution.......................................Fine 1200, Fast 1200, 600 dpi, 300 dpi

Monthly duty ...................................Average: 5,000 pages

Maximum: 150,000 pages

Operating systems..........................Microsoft Windows 95/98/Me/2000/XP,

Microsoft Windows NT4.0,

Microsoft Windows Server 2003,

Apple Macintosh OS 9,

Apple Macintosh OS X

Controller........................................PowerPC750CXr 400 MHz

Memory...........................................Standard: 64 MB

Maximum: 576 MB

Interface..........................................Standard:

USB: Hi-Speed USB, Full-Speed USB (USB memory slot) Parallel: IEEE1284 Network: 10BASE-T/100BASE-TX, KUIO-LV slot

Option.............................................IB-11: Serial

IB-21E: 10BASE-T/100BASE-TX

Operation environment...................Temperature: 10 to 32.5

°C

Relative Humidity: 15 to 80 %

Altitude: 2,500 m maximum

Illumination: 1,500 lux maximum

Dimensions.....................................469 × 395 × 285 mm

)

2F7

)

1-1-1

Page 12

2F7

Weight (without toner container)..... 19.5 kg

Operating noise ..............................During printing: LpA = 50 dB (A)

During standby: LpA = 40 dB (A)

During sleep mode: immeasurably low

(in accordance with EN ISO7779 [Bystander position, sound pressure level at the

front])

1-1-2

Page 13

1-1-2 Parts names



(1) Overall

2F7





































1. Top cover

2. Paper stopper

3. Top tray

4. Operation panel

5. Toner container

6. Right side cover

7. Paper cassette

8. MP (Multi-Purpose) tray

9. Left side cover

10. Power switch

Figure 1-1-1

11. Waste toner box

12. Rear unit

13. USB memory connector

14. USB interface con nector

15. Network indicators

16. Parallel interface connector

17. Option interface slot (Network/ Serial/Memory card/Hard disk)

18. Network interface connector

19. AC inlet

1-1-3

Page 14

2F7

(2) Operation panel





Ready PAR A4 PLAIN

Figure 1-1-2

1. Message display

2. Indicators

3. Menu key

4. OK key

5. Cursor keys

6. GO key

7. Cancel key











1-1-4

Page 15

1-1-3 Machine cross section

2F7











Paper path Paper path (optional)

  

 







Figure 1-1-3 Machine cross section

1. MP (Multi-Purpose) tray

2. MP tray paper feed unit

3. Toner container

4. Developer unit

5. Main charger unit

6. Drum unit

7. Laser scanner unit

8. Paper exit section

9. Rear unit

10. Fuser unit 1 1. Transfer/separation section

12. Duplex paper conveying section

13. Paper cassette

14. Paper conveying section

15. Paper cassette paper feed section

16. Face-up tray (optional)

1-1-5

Page 16

2F7

This page is intentionally left blank.

1-1-6

Page 17

1-2 Installation

1-2-1 Installation environment

1. Temperature: 10 - 32.5°C/50 - 90.5°F

2. Humidity: 15 - 80%RH

3. Power supply: 120 V AC, 9.0 A 220 - 240 V AC, 5.0 A (Average)

4. Power source frequency: 50 Hz ±0.3%/60 Hz ±0.3%

5. Installation location Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams. Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto the machine. Avoid dust and vibration. Choose a surface capable of supporting the weight of the machine. Place the machine on a level surface (maximum allowance inclination: 1 Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases and chlorine-based organic solvents. Select a room with good ventilation.

6. Allow sufficient access for proper operation and maintenance of the machine. Machine front: 60 cm, Machine rear: 20 cm Machine right: 10 cm, Machine left: 30 cm Machine top: 75 cm

75 cm

°).

2F7

20 cm 60 cm30 cm 10 cm

Figure 1-2-1

1-2-1

Page 18

2F7

1-2-2 Unpacking and installation

(1) Installation procedure

Installing the toner container and waste toner box.

Start

Unpacking.

Attacihng the label.

Adding paper to paper cassette.

Connecting the printer cables.

Connecting the power cord and toner installing.

Printing a status page for test.

Installing the software.

Completion of the machine installation.

1-2-2

Page 19

Unpacking.

2F7













Figure 1-2-2 Unpacking

1. Printer

2. Toner container

3. Waste toner box

4. Power cord

5. CD-ROMs

6. Manuals and other printed matter

7. Plastic waste bag

8. Language label sheet





1-2-3

Page 20

2F7

Attaching the label.

1. Attach the included language label sheet on

the indicator as shown in the figure.

Ready PAR A4 PLAIN

Language label sheet

Installing the toner container and waste toner box.

1. Open the top cover.

2. Remove the tape.

Figure 1-2-3

Top cover

1-2-4

Tape

Figure 1-2-4

Page 21

2F7

3. Shake the new toner container at least 10

times as shown in the figure in order to distribute the toner evenly inside the container.

4. Carefully remove the protective seal (orange

colored).

5. Install the toner container into the printer.

6. Push on the PUSH HERE marks on the

toner container until the container clicks into place.

7. Close the top cover.

Toner container

Protective seal (orange colored)

Figure 1-2-5

REMOVE THIS TAG BEFORE ADDING TONER

8. Open the cap of the waste toner box.

9. Open the left side cover.

10.Insert the new waste toner box as shown in

the figure. When the box is set correctly, it will snap into place.

11.Close the left side cover.

Toner container

Figure 1-2-6

Left side cover

Cap

Waste toner box

Figure 1-2-7

1-2-5

Page 22

2F7

Adding paper to the paper cassette.

1. Pull out the paper cassette and remove the

cassette cover.

2. Push the bottom plate down until it locks.

Cassette cover

Bottom

plate

Paper cassette

Figure 1-2-8

3. Turn the paper size dial so that the size of

the paper you are going to use appears in the paper size window.

Paper size dial

Paper size window

Figure 1-2-9

1-2-6

Page 23

4. Pull the release lever on the right side guide

and slide to the desired paper size.

5. Pull the release lever and slide the paper

stopper to the desired paper size. If using A3 or Ledger paper, pull out the extension paper cassettes pushing the lock lever one by one and adjust them to the desired paper size.

6. Place the paper in the cassette, with side to

be printed downward, so that the leading edge is aligned against the paper stopper. Put the cassette cover.

7. Insert the paper cassette into the slot in the

printer. Push it straight in as far as it will go.

2F7

Side guide

Release lever

Side guide

Figure 1-2-10

Lock lever

Release lever

Paper stopper

Figure 1-2-11

Extension paper cassette

Lock lever

1-2-7

Page 24

2F7

Connecting the printer cables.

1. Connect the printer cable (parallel, USB or

network) to the printer and the PC.

USB

Network

Parallel

USB cable

Network cable

Parallel cable

Figure 1-2-12

Connecting the power cord and toner installing.

1. Connect the power cord to the printer’s AC

inlet and the other end into a power outlet.

2. Turn the power switch to on ( | ).

The printer will begin replenishing the toner; this will take approximately 20 minutes.

3. Wait until the message display indicates [>

MSG language]. The default message language is English.

4. Press T or S key repeatedly until the mes-

sage display shows the desired language and then press OK key. If you do not wish to change the setting, press Cancel key.

5. The display returns to Ready.

> MSG language ? English

AC inlet

Power cord

Power switch

1-2-8

Figure 1-2-13

Page 25

Printing a status page for test.

1. Press the Menu key when [Ready] is dis-

played.

2. Press T or S key to display [Print Status

Page].

3. Press OK key to display [Print Status

Page?].

4. Press OK key. [Processing] will be dis-

played and the status page will be printed. When printing is complete, [Ready] will appear again.

5. Check to see if the status page is properly

printed.

Installing the software.

1. Switch on the PC and activate Windows.

If the Welcome to the Found New Hardware Wizard dialog box displays, select [Cancel].

2. Insert the CD-ROM (Software Library) sup-

plied with the printer into the optical drive of the PC.The installation program launches and the License Agreement displays. If the installation program fails to launch, use Windows Explorer to access the CDROM and select [Setup.exe].

3. Select [View License Agreement] to read

the information and select [Accept] to proceed.

4. Select [Install KX Driver] and follow the on

screen instructions to complete the software installation. When the Select the Printer Port window is displayed, select a USB port (ex. USB001) in the list below the Use the following port radio button.

5. Once the installation is complete, the

[Printer Installed Successfu lly ] d ial og bo x displays. When the test page prints correctly, printer setup is complete. For details on using the printer, refer to the operation guide.

2F7

Completion of the machine installation.

1-2-9

Page 26

2F7

1-2-3 Installing the expanding memory (optional)

1. Power off the printer and unplug the printer

power cord.

2. Open the right side cover

3. Remove the screw and open the inner

cover.

Right side cover

Inner cover

Screw

4. Push out the clamps on both ends of the

memory socket.

5. Remove the memory from its package.

Aligning the cutouts of the memory with the matching keys of the socket, carefully plug the memory into the memory socket until it clicks in place.

6. Push the two socket clamps to secure the

memory.

7. Close and secure the inner cover by the

screw.

8. Close the right side cover.

Testing the expanded memory

1. To verify that the memory module is working

properly, test it by printing a status page (refer to operation guide).

Clamp

Memory socket

Figure 1-2-14

Cutout

Clamp

Memory

Cutout

1-2-10

Figure 1-2-15

Page 27

1-2-4 Installing the memory card or hard disk (optional)

1. Turn off the printer and disconnect the

power cord and printer cable.

2. Remove the two screws and then open the

option interface slot cover.

3. Install the memory card or hard disk into the

memory card slot.

4. Close the option interface slot cover.

2F7

Memory card or hard disk

Memory card slot

Option interface slot cover

Screw

Figure 1-2-16

1-2-11

Page 28

2F7

1-2-5 Installing the network interface card (optional)

1. Turn off the printer and disconnect the

power cord and printer cable.

2. Remove the two screws and then open the

option interface slot cover.

3. Install the network inte rface card.

4. Secure the network interface card by two

screws.

Network interface card

Option interface slot

Option interface

slot cover

Screw

Figure 1-2-17

1-2-12

Page 29

1-3 Maintenance Mode

1-3-1 Maintenance mode

The printer is equipped with a maintenance function which can be used to maintain and service the machine.

(1) Executing a maintenance item

Message display

Ready

 Press the MENU key.

Print Menu Map

 Press the  or  key several times until [Others >] is displayed.

2F7

Others >

Service mode items

 Press the  key.

>>Print Status Page

>>Print Event Log

>>Paper Feed

>>Maintenance

>MSG Language English

 Press the  or  key several until [>Service >] is displayed.

>Service >

 Press the  key.

To print a status page for service purpose.

(See page P.1-3-2)

To print an event log (EVENT LOG) (Displayed when FRPO I1 is set to 1)

(See page P.1-3-8)

To set paper feed operation as printer driver priority mode.

(See page P.1-3-14)

To reset counter for the maintenance kit.

(See page P.1-3-14)

times

>>Developer

>>DRUM-CTRL

>>Drum

To scroll these items, press the  or  key repeatedly.

To initialize the

developer unit. (toner install mode)

(See page P.1-3-15)

To perform a automatic drum refreshing.

(See page P.1-3-15)

To perform a drum refreshing.

(See page P.1-3-16)

1-3-1

Page 30

2F7

DN:SPL9200007 SN:SPL9200010

[XXXXXXXX/XXXXXXXX][XXXXXXX][XXXXXXXX][01/00] Printed Page(s) 9690

/t/P00/S00/U00/F00/N00/D50:DM0301.DAN:0002001001210052

/0020/0020/1061/0811/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ /AAAAAAA/AAAAAAA/AAAAAAA/ /AAAAAAA/AAAAAAA/AAAAAAA/ /AAAAAAA/AAAAAAA/ /AAAAAAA/ /AAAAAAA/

/AAAAAAA/

/003D/0005/0005/0005/0000/ /0000/

/RS2/FF/00/[0003-0003]/81/31/50/50/0

00.00.00.00.00.00

Service items Description

Printing a status page for service purpose Description

>>Print Status Page

Prints a status page for service purpose. The status page includes various printing settings and service cumulative.

Purpose

To acquire the current printing environmental parameters and cumulative information.

Procedure

1. Enter the service mode [>>Print Status Page].

2. Press the OK key. [Print Status Page?] will be displayed.

3. Press the OK key. Five pages will be printed. (The second page includes service information.

Service information (Refer to next page) Firmware release date

Firmware version: 132.00

Service Information

Main PWB firmware version

Released: 25/Nov/2005

1-3-2

Figure 1-3-1Service status page

Page 31

Service items Description

Service information

[XXXXXXXX/XXXXXXXX][XXXXXXX][XXXXXXXX][01/00] Printed pages(s) 9690



/t/P00/S00/U00/F00/N00/D50:DM0301.DAN:0002001001210052

 

      

/0020/0020/1061/0811/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/ 0/





/AAAAAAA/AAAAAAA/AAAAAAA/ /AAAAAAA/AAAAAAA/AAAAAAA/



/AAAAAAA/AAAAAAA/



/AAAAAAA/



/AAAAAAA/





/AAAAAAA/

/003D/0005/0005/0005/0000/

  

 

/0000/



2F7

/RS2/FF/00/[0003-0003]/81/31/50/50/0

        

00.00.00.00.00.00



A:1234567890123456





/03030303/03030303/03030303/03000000/00000000/03030303/03030303/

SPD1:0203040508090A0B0C0D0F101112131415161718191A1B1C1D1E1F202122235E





/00/ /00000000000000000000000000000000/00000000000000000000000000000000

 

/0/0000000000000000000000000000000000000000000000000000000000000000



1-3-3

Page 32

2F7

Service items Description

/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/



/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/ /00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/00000000/



/8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /8088808880808000/8088808880808000/8088808880808000/8088808880808000 /00000000/00000000/00000000000000000000000000000000/00000000000000000000000000000000/0000/00/00



DN:SPL9200007 SN:SPL9200010

 

Detail of service information

No. Items Description

 Engine ROM information [Flash ROM version]  Operation panel ROM

information

 Boot ROM information [Boot ROM version]

1-3-4

[Operation panel mask ROM version]

Page 33

Service items Description

No. Items Description

 Software jumper switch

information (hexadecimal) [First byte/second byte (displayed in OEM mode only)]

 Total page -  Toner install information -  Parallel I/O information -  Serial information 00: Not connected

 USB information 00: Not connected

 Operation panel lock sta-

tus (displayed only when locked)

 NVRAM error (displayed

only when any error has occurred)

First byte bit 0 = 1: (Fixed) bit 1 = 0: Overseas, 1: Domestic (Japan) bit 2, 3 (Not used) bit 4 = 0: Kyocera, 1: OEM bit 5 = 0: For Europe, 1: For US bit 6 = 0: Non MICR mode, 1: MICR mode bit 7 (Not used) Second byte: Displayed in OEM mode only

bit0: Framing error bit1: Overrun error bit2: Parity error

01: Full-Speed 02: Hi-Speed

Code conversion

01: Partial lock 02: Full lock

ABCDEFGHI J

0123456789

01: ID error 02: Version error

03: Checksum error 04: NVRAM crush error

2F7

 NVRAM download 00: Normal

bit0: Font data bit1: Host data bit2: Macro data bit3: Program data bit4: Operation panel message data download (file name displayed) bit5: OEM data bit6: Web template data (version displayed) bit7: Error occurred

 Printable area setting /Top offset/Left offset/Page length/Page width  Left offset for each paper

source

 Top offset for each paper

source

 Offset for rotation /Top offset/Left offset/

 Paper source life counter Total counter large/Total counter small/MP tray  Paper source life counter /Paper feeder 1 total

 Paper source life counter /Paper feeder 4 total

/MP tray/Paper cassette1/Paper cassette 2/Paper cassette 3/Paper cassette 4/Paper cassette 5/Duplex (1/600 inches unit)

/MP tray/Paper cassette 2/Paper cassette 3/Paper cassette 4/ Paper cassette 5/Duplex/ (1/600 inches unit)

(1/600 inches unit)

/Paper feeder 2 total /Paper feeder 3 total

/Paper feeder 5 total

1-3-5

Page 34

2F7

Service items Description

No. Items Description

 Paper source position counter /Duplex  Unit life counter /Drum unit  Maintenance kit life counter -  Unit version /Paper feeder 2/Paper feeder 3/Paper feeder 4/Paper feeder 5/  Unit EEPROM error bit0: Paper feeder 2

bit1: Paper feeder 3 bit2: Paper feeder 4 bit3: Duplex bit4 to 6: Reserved bit7: Drum unit

 Drum ID -  Serial interface information RS2: RS-232C

RS4: RS-422A

 Drum sensitivity information -  Calibration table settings Setting value (FRPO I4), Hexadecimal  Optional paper feeder/stacker

information

1st 2 bytes bit0: MP tray bit1 to 6: Paper feeder 1 to 6 bit7: Duplex bit8: Reserved bit9: Reserved

2nd 2 bytes bit0: Face up bit1: Face down bit2: Reserved bit3: Reserved bit4 to 15: Reserved

bit10 to 15: Reserved

 Operation panel message lan-

PMSG command setting (decimal)

guage

 Current temperature

0 to 50 °C (in 1 °C increment, “-” = Temperature/humidity sensor is abnormal.)

 Current humidity 25 to 90% RH (in 1% increment)  Absolute humidity

 Number of rebooting for verti-

g/m

cal distortion check

 MAC address  Fixed asset number (maximum 16 characters)  Media type attributes Media type setting value from 1 to 28 (paper weight)

(unused media type are always 0x00.)

 Memory SPD information (slot 1)2 to 6 bytes, 8 to 36 bytes, 94 to 95 bytes (total 32 bytes)

 Drum status information -  Drum surface potential infor-

mation

 Drum sensitivity information -

1-3-6

Page 35

Service items Description

No. Items Description

 LSU luminous power distribu-

tion information

 DRT correction coefficient  Engine parameter Hexadecimal, 128 bytes (256 digits)

 Toner container information -

 Drum serial number -

 Machine serial number -

NOTE:

Code conversion

ABCDEFGH I J 0123456789

APC PWB table information (1 byte)/actual data (32 bytes)

4 bytes × 11 × 23 groups

2F7

1-3-7

Page 36

2F7

Service items Description

Printing an event log (EVENT LOG) Description

>>Print Event Log

Prints the history of paper misfeeds and self-diagnostic errors including up to 16 items from the latest occurrence of such an error. (If the number of errors exceeds 16, errors will be deleted sequentially from the oldest one.)

Purpose

To allow machine malfunction analysis based on the frequency of paper misfeeds and selfdiagnostic errors.

Procedure

1. Enter the service mode [>>Print Event log].

2. Press the OK key. [>>Print Event Log?] will be displayed.

3. Press the OK key. A sheet of event log will be printed.

[EB20MA001/2F7_1000.001.0200][E1][B33.01FLB][03]

(1)

Total page 12345 DN:SPL0000000

Firmware version: 2F7_3000.001.35

(4)(2)(3)(5)(6)

(7)(8)

(9)

# Count. Event # Count. Service Code

16 11111 10.48.01.88.01.01 15 10000 10.48.01.88.01.01 14 9999 10.48.01.88.01.01 13 9998 10.48.01.88.01.01 12 9997 10.48.01.88.01.01 11 9996 10.48.01.88.01.01 10 9995 10.48.01.88.01.01 9 9994 10.48.01.88.01.01 8 9993 10.48.01.88.01.01 7 9992 10.48.01.88.01.01 6 9991 10.48.01.88.01.01 5 9990 10.48.01.88.01.01 4 9989 10.48.01.88.01.01 3 9979 10.48.01.88.01.01 2 9969 10.48.01.88.01.01 1 1 10.48.01.88.01.01

10.48.01.88.01.01

(a) (b) (c) (d) (e) (f)

(10)

8 11234 01.6000 7 10000 01.6000 6 9999 01.6000 5 9998 01.6000 4 9997 01.6000 3 9996 01.6000 2 9995 01.6000 1 9994 01.6000

(11)

# Count. item

8 11234 02.00 7 10000 02.00 6 9999 02.00 5 9998 02.00 4 9997 02.00 3 9996 02.00 2 9995 02.00 1 9994 02.00

(12)

J00: 0 J43: 0 C:6000: 4 M00: 1 J05: 0 J44: 0 C:6050: 1 J09: 0 J46: J10: 0 J47: J11: 0 J50: J12: 0 J51: J13: 0 J52: J14: 0 J53: J15: 0 J60: J16: 0 J61:

(g)

J17: 0 J80: J18: 0 J81: J19: 0 J82: J20: 0 J83: J21: 0 J84: J22: 0 J85: J23: 0 J86: J30: 0 J87: J35: 0 J88: J40: 0 J89: J41: 0 J42: 0

SN:SPL0000000

(13)

(h)

(i)

Released: 10/Nov/2005

1-3-8

Figure 1-3-2

Page 37

Service items Description

Detail of event log (EVENT LOG) information

No. Items Description

(1) Engine PWB mask version [Engine mask version/Engine software version] (2) Operation panel PWB mask ver-

sion (3) BROM version (4) Software jumper switch informa-

tion

(hexadecimal)

[First byte/second byte (dis-

played in OEM mode only)]

(5) Main PWB mask version (6) Main PWB firmware release

date (7) Total page counter (8) Drum serial number -

2F7

(9) Printer serial number -

(10) Paper Jam Log # Count. Event

Remembers 1 to 16 of occurrence. If the occurrence of the previous paper jam is less than 16, all of the paper jams are logged. When the occurrence execeeds 16, the oldest occurrence is removed.

The total page count at the time of the paper jam.

Log code (2 digit, hexadecimal, 6 categories)

(a) Cause of a paper jam (b) Posistion of paper jam (c) Paper source (d) Paper size (e) Paper type (f) Paper exit

Refer to the next page for the details of each log code.

1-3-9

Page 38

2F7

Service items Description

No. Items Description

(10)

cont.

(a) Cause of paper jam 10: Paper does not arrive at the registration sensor. (MP tray) [42]

10: Paper does not arrive at the registration sensor. (Cassette 1) [31] 10: Paper does not arrive at the registration sensor. (Cassette 2) [31] 10: Paper does not arrive at the registration sensor. (Cassette 3) [31] 10: Paper does not arrive at the registration sensor. (Cassette 4) [31] 10: Paper does not arrive at the registration sensor. (Cassette 5) [31] 10: Paper does not arrive at the registration sensor. (Duplex conveying) [31] 11: Paper does not pass the registration sensor. [48] 12: Paper remains at the registration sensor when power is turned on. [48] 20: Paper does not arrive at the exit sensor. [48] 21: Paper does not pass the exit sensor. [47] 22: Paper remains at the exit sensor when powe r is turned on. [47] 30: Paper does not arrive at the paper feeder 1 paper feed sensor. (Cassette 2) [32] 30: Paper does not arrive at the paper feeder 1 paper feed sensor. (Cassette 3) [33] 30: Paper does not arrive at the paper feeder 1 paper feed sensor. (Cassette 4) [33] 30: Paper does not arrive at the paper feeder 1 paper feed sensor. (Cassette 5) [33] 31: Paper does not pass the paper feeder 1 paper sensor. [32] 32: Paper remains at the paper feeder 1 paper feed sensor when power is turned on. [32] 40: Paper does not arrive at the paper feeder 2 paper feed sensor. (Cassette 3) [33] 40: Paper does not arrive at the paper feeder 2 paper feed sensor. (Cassette 4) [34] 40: Paper does not arrive at the paper feeder 2 paper feed sensor. (Cassette 5) [34] 41: Paper does not pass the paper feeder 2 paper sensor. [33] 42: Paper remains at the paper feeder 2 paper feed sensor when power is turned on. [33] 50: Paper does not arrive at the paper feeder 3 paper feed sensor. (Cassette 4) [34] 50: Paper does not arrive at the paper feeder 3 paper feed sensor. (Cassette 5) [35] 51: Paper does not pass the paper feeder 3 paper sensor. [34] 52: Paper remains at the paper feeder 3 paper feed sensor when power is turned on. [34] 60: Paper does not arrive at the paper feeder 4 paper feed sensor. (Cassette 5) [35] 61: Paper does not pass the paper feeder 4 paper sensor. [35] 62: Paper remains at the paper feeder 4 paper feed sensor when power is turned on. [35] A1: Paper does not arrive at the duplex sensor. (Rear unit) [47] A2: Paper does not pass the duplex sensor. (Rear unit) [47] A3: Paper does not arrive at the duplex jam sensor. (Rear unit) [49] A4: Paper does not pass the duplex jam sensor. (Rear unit) [49] A5: Paper remains at the duplex jam sensor when power is turned on. [49] E0: Paper misfeed occurs due to forced stop when an error occurs during printing. (such as opening of a cover) [00] E1: The length of paper is shorter than designated for the paper cassette. [47] E2: A5 lengthwise paper has been fed despite the paper cassette is set to A4 widthwise (see reference 1 below). [00] E3: Paper cassette 1 was opened in the middle of duplex printing (see reference 2 below). [49] F0: Paper does not arrive at the face down tray paper full sensor. [47] F1 to FE: Paper misfeed by another cause. [00]

1-3-10

Note: Values (hexadecimal) within [ ] indicate paper misfeed locations. Reference 1: Widthwise A4 size and lengthwise A5 are identical in length, however, the fuser temperature differs. Detecting the fuser temperature depending on this temperature difference allows detection of paper misfeed due to a wrong paper size. Reference 2: The DU cover of the duplex paper conveying section is designed to operate as being held against the main unit as the paper cassette is installed. (Paper feeding fails when the paper cassette is not properly installed because of the resultant space between the DU cover and the main unit.) Therefore, paper jam occurs if the paper cassette is opened in the middle of duplex printing.

Page 39

Service items Description

(Fuser)

(Inside the printer)

(Rear unit)

(Duplex conveying)

(Face down tray)

No. Items Description

(10)

(b) Detail of jam location

cont.

Printer

(Face down tray)

(Inside the printer)

(Duplex conveying)

(Cassette 1)

(Cassette 2)

(Cassette 3)

(Cassette 4)

(Cassette 5)

(Rear unit)

Face up tray

Paper feeder 1

Paper feeder 2

Paper feeder 3

Paper feeder 4

(Fuser)

2F7

(MP tray)

Sensors

Registration sensor

Paper exit sensor

Face down tray paper full sensor

Duplex sensor

Duplex jam sensor

6 7 8 9

Paper feed sensor (Paper feeder)

Figure 1-3-3

1-3-11

Page 40

2F7

Service items Description

No. Items Description

(10)

cont.

01: Paper cassette 1 (printer) 02: Paper cassette 2 (paper feeder 1) 03: Paper cassette 3 (paper feeder 2) 04: Paper cassette 4 (paper feeder 3) 05: Paper cassette 5 (paper feeder 4) 06 to 09: Reserved

(d) Detail of paper size (Hexadecimal) 01: Monarch

02: Business 03: International DL 04: International C5 05: Executive 06: Letter-R 86: Letter-E 07: Legal 08: A4R 88: A4E 09: B5R 89: B5E 0A: A3 0B: B4

(e) Detail of paper type (Hexadecimal) 01: Plain

02: Transparency 03: Preprint 04: Labels 05: Bond 06: Recycle 07: Vellu m 08: Rough 09: Letter head

(f) Detail of paper exit location (Hexadecimal)

0C: Ledger 0D: A5R 8D: A5E 0E: A6 0F: B6 10: Commercial #9 11: Commercial #6 12: ISO B5 13: Custom size 1E: C4 1F: Postcard 20: Reply-paid postcard 21: Oficio II 22: Special 1

0A: Color 0B: Prepunched 0C: Envelope 0D: Cardstock 0E: Coated 0F: 2nd side 10: Media 16 11: High quality

23: Special 2 24: A3 wide 25: Ledger wide 26: Full bleed paper (12 ¥ 8) 27: 8K 28: 16K-R A8: 16K-E 32: Statement-R B2: Statement-E 33: Folio 34: Western type 2 35: Western type 4

15: Custom 1 16: Custom 2 17: Custom 3 18: Custom 4 19: Custom 5 1A: Custom 6 1B: Custom 7 1C: Custom 8

1-3-12

01: Face down tray 02: Face up tray 03: Reserved 04: Reserved 05: Reserved 0B: Reserved 0C: Reserved 0D: Reserved 0E: Reserved

15: Reserved 16: Reserved 1F: Reserved 20: Reserved 29: Reserved 2A: Reserved 33: Reserved 34: Reserved

3D: Reserved 3E: Reserved 47: Reserved 48: Reserved

Page 41

Service items Description

No. Items Description

(1 1) Service Call (Self diagnostic

error) Log

# Count. Self diagnostic error

2F7

code

Remembers 1 to 8 of occurrence of self diagnostics error. If the occurrence of the previous diagnostics error is less than 8, all of the diagnostics errors are logged.

(12) Maintenance Log # Count. Item

Remembers 1 to 8 of occurrence of replacement. If the occurrence of the previous replacement of toner container is less than 8, all of the occurrences of replacement are logged.

(13) Counter Log

Comprised of three log counters including paper jams, self diagnostics errors, and replacement of the toner container.

(g) Jam (h) Self diagnostic error (i) Maintenance

Indicates the log counter of paper jams depending on location.

Refer to Paper Jam Log. All instances including

those are not occurred are displayed.

The total page count at the time of the self diagnostics error.

The total page count at the time of the replacement of the toner container. This is virtually logged as the occurrence of the Toner Empty condition since the replacement of the toner container is not precisely detectable.

Indicates the log counter of self diagnostics errors depending on cause. (See page P.1-4-2)

Example: C6000: 4

Self diagnostics error 6000 has happened four times.

(See page P.1-4-2)

Code of maintenance replacing item (1 byte, 2 category)

01: Toner container

item replacing Indicates the log

counter depending on the maintenance item for maintenance.

T: Toner container 00: Black M: Maintenance kit 00: MK-430

Example: T00: 1 The (black) toner container has been replaced once.

1-3-13

Page 42

2F7

Service items Description

Setting the paper feed operation (printer drive r priority mode)

>>Paper Feed

Description

With printer driver priority mode, when selecting the specific paper feed location (a paper cassette or MP tray) with the printer driver (it is not automatic selection), paper is fed from the selected location. Message "Add Paper" is displayed when there is no paper in that location. When selecting the MP tray as the paper feed location, paper is fed with the timing of maximum size (Ledger). As for the setting media type (setting the paper type), setting of the printer driver is notified to the engine PWB. Duplex printing operation is still the ordinary operation, and paper jam occurs if paper size is different from the setting of the printer.

Purpose

To set the printer driver priority mode which priority is given to the setup of a printer driver when the ordinary paper feed operation mode is not suitable for the usage condition of the user.

Method

1. Enter the service mode [>>Paper feed].

2. Press the OK key. Message [Paper feed?] will be displayed.

3. Select the mode (Special? or Normal?) pressing the T key or S key.

Special Ordinary paper feed operation mode (Default) Normal Printer driver priority mode

>>Maintenance

4. Press the OK key .

Completion Counter reset for the maintenance kit

Description

The "Install MK" message means that maintenance kit should be replaced at 300,000 images of printing. The interval counter must be manually reset using this service item. Maintenance kit MK-430 includes the following units: Drum unit Developer unit Fuser unit Transfer roller Paper feed system rollers

Purpose

To reset the life counter for the developer unit and drum unit included in maintenance kit.

Procedure for replacing the maintenance kit

Drum unit (See page P.1-5-10) Developer unit (See page P.1-5-9) Fuser unit (See page P.1-5-14) Transfer roller (See page P.1-5-12) Paper feed system rollers: Paper feed assembly [paper feed roller and pickup roller] (See page P.1-5-4) Retard roller (See page P.1-5-5) MP tray paper feed roller (See page P.1-5-8)

Procedure

1. Enter the service mode [>>Maintenance].

2. Press the OK key. [>>Maintenance?] will be displayed.

3. Press the OK key twice. The counter for each component is reset immediately.

Completion

Note: Occurrences of resetting the maintenance kits are recorded on the service status page in number of pages or images at which the maintenance kit was replaced (See page P.1-3-2). This may be used to determine the possibility that the counter was errorneously or unintentionally reset.

1-3-14

Page 43

Service items Description

Initializing the developer unit (toner install mode)

>>Developer

>>DRUM-CTRL

Description

The new developer unit is shipped from the factory with no toner contained. The developer can be automatically replete with toner when a toner container is installed onto it and the printer is turned on. However, because the toner reservoir in the developer has a large capacity , it requires a lengthy period of time until a substantial amount of toner has been fed to get the printer ready. (A new developer needs approximately 260 g for triggering the sensor inside.)

Purpose

To execute when the developer unit has been replaced.

Method

1. Enter the service mode [>>Developer] .

2. Press the OK key. [>>Developer?] will be displayed.

3. Press the OK key. [Ready] will be displayed.

4. Turn off and on the printer . [Self test] [Please wait (Adding toner)] will displayed. The printer continually engages in this mode for a pe riod of approximately 10 minutes, after which the printer reverts to the [Ready] state. [Ready] will displayed. Developer initialization is finished.

Completion Automatic drum surface refreshing

Description

The drum surface refreshing operation is normally performed when the power is turned on to the printer or during warm-up when the printer is recovering from the Sleep mode, but even then only at those times that the temperature/humidity sensor detects the drum surface to be in a state of dew condensation. By using this mode, it is possible to force the drum surface refreshing operation to be performed automatically at a predetermined period of time, regardless of the status detected by the temperature/humidity sensor.

Purpose

To prevent bleeding of the output image when the printer's operating environment is one of high humidity.

Method

1. Enter the service mode [>>DRUM-CTR L ].

2. Press the OK key. [>>DRUM-CTRL?] will be displayed.

3. Press the OK key .

4. Press the T key or S key and select the desire mode (from 00 to 02)

2F7

00 Mode turned OFF (default) 01 Refreshing operation time (short) 02 Refreshing operation time (long)

5. Press the OK key. The new value is set.

Completion

1-3-15

Page 44

2F7

Service items Description

Drum surface refreshing

>>Drum

Description

Rotates the drum approximately 3 minutes with toner lightly on the overall drum using the high-voltage output control of the engine PWB. The cleaning blade in the drum unit scrapes toner off the drum surface to clean it.

Purpose

To clean the drum surface when image failure occurs due to the drum. This mode is effective when dew condensation on the drum occurs.

Method

1. Enter the service mode [>>Drum].

2. Press the OK key. [>>Drum?] will be displayed.

3. Press the OK key. Drum surface refreshing will start and finish after approximately 3 minutes, after which the printer reverts to the [Ready] state. [Ready] will displayed. Drum surface refreshing is finished.

Completion

1-3-16

Page 45

2F7

Paper exit sensor

Paper feed sensor

Duplex sensor

Duplex jam sensor

Registration sensor

1-4 Troubleshooting

1-4-1 Paper misfeed detection

(1) Paper misfeed indication

When a paper misfeed occurs, the printer immediately stops printing and displays the paper misfeed message on the operation panel. To remove paper misfed in the printer, pull out the paper cassette, pull out the rear unit, remove the developer unit or open the duplex cover.

(2) Paper misfeed detection

Paper Jam MP tray

Paper misfeed location

Figure 1-4-1

Face down tray paper full sensor

Paper

Paper exit sensor

exit sensor

Duplex

sensor

Paper misfeed message

Duplex jam

sensor

Registration

sensor

Paper

feed

feed sensor

sensor

Figure 1-4-2

Paper

feed

sensor

Paper

Paper feed

feed

sensor

Paper

Paper feed

feed

sensor

1-4-1

Page 46

2F7

1-4-2 Self-diagnostic function

(1) Self-diagnostic function

This printer is equipped with self-diagnostic function. When a problem is detected, the printer stops printing and display an error message on the operation panel. An error message consists of a message prompting a contact to service personnel, total print count, and a four-digit error code indicating the type of the error. (The display varies depending on the type of the error.)

Call service 6000:012345

Error code Total print

(2) Self diagnostic codes

Code Contents

0150 Engine PWB EEPROM error

Detecting engine PWB EEPROM communication error.

0420 Paper feeder communication error

Communication error between engine PWB and optional paper feeder.

Call service F000

Error code

Causes Check procedures/corrective measures

Improper installation engine PWB EEPROM.

Defective engine PWB

Improper installation paper feeder.

Defective harness between connect-L PWB (YC2) and paper feeder interface connector, or improper connector insertion.

Defective harness between connect-L PWB (YC6) and engine PWB (YC4), or improper connector insertion.

Defective engine PWB.

Defective paper feeder.

Error power off F030

Error code

Remarks

Check engine PWB EEPROM installation, Remedy.

Replace the engine PWB (See page P.1-5-

21). Follow installation instruction carefully again.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the engine PWB (See page P.1-5-

21). Replace the paper feeder.

1-4-2

Page 47

2F7

Code Contents

2000 Main motor error

MMOTRDYN signal does not go low within 2 s after MMOTONN signal goes low.

2200 Drum motor error

DMOTRDYN signal does not go low within 2 s after DMOTONN signal goes low.

Remarks

Causes Check procedures/corrective measures

Defective harness between main motor and engine PWB (YC10), or improper connector insertion.

Defective main motor drive transmission system.

Defective main motor.

Defective engine PWB.

Defective harness between drum motor and engine PWB (YC11), or improper connector insertion.

Defective drum motor drive transmission system.

Defective drum motor.

Defective engine PWB.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

Replace the main motor.

Replace the engine PWB (See page P.1-5-

21). Reinsert the connector. Also check for conti-

nuity within the connector harness. If none, remedy or replace the harness.

Check if the gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any.

Replace the drum motor.

Replace the engine PWB (See page P.1-5-

21).

4000 Polygon motor (laser scanner unit)

error

POLRDYN signal does not go low within 2 s after POLONN signal goes low.

Defective harness between polygon motor and main PWB (YC10), or improper connector insertion.

Defective harness between main PWB (YC11) and engine PWB (YC12), or improper connector insertion.

Defective laser scanner unit.

Defective engine PWB.

Defective main PWB.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the laser scanner unit (See page P.1-5-31).

Replace the engine PWB (See page P.1-5-

21). Replace the main PWB (See page P.1-5-

25).

1-4-3

Page 48

2F7

Code Contents

4200 Laser output (pin photo sensor) error

The pin photo signal (PDN) is not output within a specified time after the polygon motor ready signal (POLRDYN) becomes ready (L level).

5100 Short-circuited main charger output

Five pages have been printed with the main charger output shortcircuited.

6000 Broken fuser heater lamp M wire

The temperature does not rise 1 the fuser heater lamp M has been turned on continuously 15 s during waming-up or at standby. The temperature does not rise 1 the fuser heater lamp S has been turned on continuously 15 s during waming-up or at standby. The temperature does not rise 1 the fuser heater lamp S has been turned on continuously 5 s.

°C after

Remarks

Causes Check procedures/corrective measures

Defective harness between PD PWB (YC1) and main PWB (YC12), or improper connector insertion.

Defective APC PWB.

Defective PD PWB.

Defective main PWB.

Drum unit installed incorrectly.

Engine PWB installed incorrectly.

Defective engine PWB.

Poor contact in the fuser thermistor M connector terminals.

Fuser thermistor M installed incorrectly.

Thermal cutout triggered.

Fuser heater lamp M installed incorrectly.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the laser scanner unit (See page P.1-5-31).

Replace the main PWB (See page P.1-5-

25). Verify harness is not pinched in the drum

unit. Verify harness is not pinched in the engine

PWB.

Replace the engine PWB (See page P.1-5-

21). Reinsert the connector (See page P.1-5-19).

Check and reinstall if necessary (See page P.1-5-19).

Check for continuity. If none, replace the thermal cutout (See page P.1-5-19).

Check and reinstall if necessary (See page P.1-5-19).

6020 Abnormally high fuser thermistor M

temperature

Fuser thermistor M detects abnormally temperature.

1-4-4

Broken fuser heater lamp M wire.

Shorted fuser thermistor M.

Defective engine PWB.

Check for continuity. If none, replace the fuser heater lamp M (See page P.1-5-15).

Measure the resistance. If it is 0 Ω, replace the fuser thermistor M (See page P.1-5-19).

Replace the engine PWB (See page P.1-5-

21).

Page 49

2F7

Code Contents

6030 Broken fuser thermistor M wire

Input (A/D value) from fuser thermistor M is less than 1 for more than 2 s. Input (A/D value) from fuser thermistor S

is less than 1 for more than 3 s.

6100 Broken fuser heater lamp S wire

After changing to fuser thermistor S, input from of fuser thermistor S control temperature compared to 10 in 5 s.

°C was low

Remarks

Causes Check procedures/corrective measures

Poor contact in the fuser thermistor M connector terminals.

Broken fuser thermistor M wire.

Fuser thermistor M installed incorrectly.

Thermal cutout triggered.

Fuser heater lamp M installed incorrectly.

Broken fuser heater lamp M wire.

Fuser heater lamp S installed incorrectly.

Broken fuser heater lamp S wire.

Reinsert the connector (See page P.1-5-19).

Measure the resistance. If it is ∞ Ω, replace the fuser thermistor M (See page P.1-5-19).

Check and reinstall if necessary (See page P.1-5-19).

Check for continuity. If none, replace the thermal cutout (See page P.1-5-19).

Check and reinstall if necessary (See page P.1-5-15).

Check for continuity. If none, replace the fuser heater lamp M (See page P.1-5-15).

Check and reinstall if necessary (See page P.1-5-15).

Check for continuity. If none, replace the fuser heater lamp S (See page P.1-5-15).

6120 Abnormally high fuser thermistor S

temperature

Fuser thermistor S detects abnormally temperature.

6130 Broken fuser heater lamp S wire

Input (A/D value) from fuser thermistor S is less than 1 for more than 500 ms.

6400 Zero cross signal error

The ZCROSS signal does not reach the engine PWB for more than 1 s.

Shorted fuser thermistor S.

Defective engine PWB.

Poor contact in the fuser thermistor S connector terminals.

Broken fuser thermistor S wire.

Fuser thermistor S installed incorrectly.

Defective harness between connect-L PWB (YC8) and engine PWB (YC3), or improper connector insertion.

Defective connection between power source unit (YC103) and connect-L PWB (YC1).

Defective power source unit.

Measure the resistance. If it is 0 Ω, replace the fuser thermistor S (See page P.1-5-19).

Replace the engine PWB (See page P.1-5-

21). Reinsert the connector (See page P.1-5-19).

Measure the resistance. If it is ∞ Ω, replace the fuser thermistor S (See page P.1-5-19).

Check and reinstall if necessary (See page P.1-5-19).

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Reinsert the connector.

Replace the power source unit (See page P.1-5-27).

Defective engine PWB.

Replace the engine PWB (See page P.1-5-

21).

1-4-5

Page 50

2F7

Code Contents

7000 Toner motor lock error

A motor over-current signal is detected continuously for 5 seconds since the toner motor is activated.

7410 Drum unit non- installing error

The drum unit is not installed or not installed properly. The drum PWB EEPROM does not communicate normally.

Remarks

Causes Check procedures/corrective measures

Lump of toner inside toner container.

Defective toner replenishment drive system.

Defective toner motor.

Defective engine PWB.

The drum unit is not installed.

Defective connection drum PWB (YC1) and connect-L PWB (YC3).

Defective drum PWB EEPROM.

Defective engine PWB.

Replace the toner container.

Replace the developer unit (See page P.1-5-

9).

Replace the developer unit (See page P.1-5-

9). Replace the engine PWB (See page P.1-5-

21). Install the drum unit (See page P.1-5-10).

Check the connection of connectors drum PWB (YC1) and connect-L PWB (YC3). (See page P.1-4-9, refer to figure 1-4-3)

Replace the drum unit (See page P.1-5-10).

Replace the engine PWB (See page P.1-5-

21).

F000 Communication problem between the

main PWB and operation panel PWB

Communication is failed between the operation panel PWB and the main PWB.

F010 Main PWB (system DIMM PWB)

checksum error

Checksum failed with system DIMM PWB on the main PWB.

F020 Main or expanded memory error

Checksum failed with main memory (RAM) on the main PWB or expanded memory (DIMM).

F030 General failure

Miscellaneous failure with the main PWB, other than F000, F010, and F020, above.

Defective system DIMM PWB.

Defective main PWB.

Defective operation panel PWB.

Defective main PWB.

Defective system DIMM PWB.

Defective system main memory (RAM) on the main PWB.

Defective main PWB.

Defective expanded memory (DIMM).

Defective mainPWB.

Replace the system DIMM PWB.

Replace the main PWB (See page P.1-5-

30). Replace the operation panel PWB.

Replace the main PWB (See page P.1-5-

30). Replace the system DIMM PWB.

Replace the main PWB (See page P.1-5-

30).

Replace the main PWB (See page P.1-5-

30). Replace the expanded memory (DIMM)

(See page P.1-2-10).

Turn the power off/on to restart the printer.If the error is not resolved, replace main PWB (See page P.1-5-30).

1-4-6

Page 51

2F7

Code Contents

Causes Check procedures/corrective measures

F040 Main PWB - engine PWB communica-

tion error

Communication between main PWB and engine PWB is failed.

F226 Main PWB video data control error Defective main-

Defective harness between engine PWB (YC12) and main PWB (YC1 1), or improper connector insertion.

Defective engine PWB.

PWB.

Remarks

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the engine PWB (See page P.1-5-

21). Turn the power off/on to restart the printer.If

the error is not resolved, replace main PWB (See page P.1-5-30).

1-4-7

Page 52

2F7

1-4-3 Image formation problems

(1)Completely blank printout.

P.1-4-9 P.1-4-10 P.1-4-11 P.1-4-11 P.1-4-12

(6)Black vertical streaks.

ABC 123

P.1-4-12 P.1-4-12 P.1-4-13 P.1-4-13 P.1-4-13

(2)All-black printout. (3)Dropouts. (4)Black dots. (5)Black horizontal

ABC 123

(7)Unsharpness. (8)Gray background. (9)Dirt on the top

ABC 123

edge or back of the paper.

ABC 123

streaks.

ABC 123

(10)Undulated printing at the left edge (scanning start position).

This vertical line should be straight.

1-4-8

Page 53

(1) Completely blank printout.

Print example Causes Check procedures/corrective measures

2F7

No transfer charging.

No developing bias output.

Poor contact of engine PWB’s transfer bias out-

Check the installation position of the engine PWB.

Refer to figure 1-4-3 below. put terminal and printer’s contact (spring).

Printer bottom

Engine PWB

Contact (spring)

Main charger output terminal

Developing bias output terminal

Contact (spring)

Separation bias output terminal

Defective engine PWB. Replace the engine PWB (See page P.1-5-21). Poor contact of engine

PWB’s developing bias

Check the installation position of the engine PWB.

Refer to figure1-4-3 above. output terminal and printer’s contact (spring).

Poor contact of engine PWB’s developing bias

Check the installation of the developer unit.

Refer to figure 1-4-4 below. output terminal and develper unit’s contact.

Contact (spring)

Transfer bias output terminal

No laser beam output.

Developing unit

Developing

bias output terminal

Contact

Printer inside

Figure 1-4-3

Defective engine PWB. Replace the engine PWB (See page P.1-5-21). Defective laser scanner

Replace the laser scanner unit (See page P.1-5-31). unit.

Defective main PWB. Replace the main PWB (See page P.1-5-25).

1-4-9

Page 54

2F7

(2) All-black printout.

Print example Causes Check procedures/corrective measures

No main charging.

Defective main charger unit.

Poor contact of engine PWB’s main charger output terminal and main charger unit’s contact (spring).

Drum PWB connector (YC1)

Main charger unit

Drum unit

Contact (spring)

Replace the main charger unit (See page P.1-5-11).

Check the installation of the drum (main charger) unit. Refer to figure 1-4-5 below.

Printer left side

Contact (spring)

Connect-L PWB connector (YC3)

Drum unit

Main charger output terminal

Figure 1-4-4

Drum grounding terminal

Poor contact of engine PWB’s main charger out-

Check the installation position of the engine PWB.

(See page P.1-5-21 and P.1-4-9, refer to figure 1-4-3) put terminal and printer’s contact (spring).

Defective engine PWB. Replace the engine PWB (See page P.1-5-21).

1-4-10

Page 55

(3) Dropouts.

Print example Causes Check procedures/corrective measures

2F7

ABC 123

Defective developing roller (developer unit).

Defective drum (drum unit). If the defects occur at regular intervals of 94 mm (See page

Fuser unit (heat roller or press roller). If the defects occur at regular intervals of 82 mm or 93 mm

Defective paper specifications. Paper with rugged surface or dump tends to cause dropouts.

If the defects occur at regular intervals of 39 mm (See page

P.2-4-2), the problem may be the damaged developing roller

(in the developer unit). Replace developer unit.

If a developer unit which is known to work normally is available

for check, replace the current developer unit in the printer with

the normal one. If the symptom disappears, replace the devel-

oper unit with a new one (See page P.1-5-9).

P.2-4-2), the problem may be the damaged drum (in the drum

unit). Replace drum unit.

If a drum unit which is known to work normally is available for

check, replace the current drum unit in the pri nte r with the nor-

mal one. If the symptom disappears, replace the drum unit

with a new one (See page P.1-5-10).

(See page P.2-4-2), the problem may be the damaged heat

roller or press roller (in the fuser unit). Replace fuser unit (heat

roller or press roller).

If a fuser unit which is known to work normally is available for

check, replace the current fuser unit in the printer with the nor-

mal one. If the symptom disappears, replace the fuser unit

(heat roller or press roller) with a new one (See page P.1-5-

14).

Replace paper with the one that satisfies the paper specifica-

tions.

Defective transfer roller installation. The transfer roller must be supported by the bushes at the

both ends. Clean the bush to remove oil and debris. Replace

the transfer roller if necessary (See page P.1-5-12).

Defective engine PWB (transfer bias output circuit).

(4) Black dots.

Print example Causes Check procedures/corrective measures

Defective drum unit. If the defects occur at regular intervals of 94 mm (See page

ABC 123

Replace the engine PWB (See page P.1-5-21).

P.2-4-2), the problem may be the damaged drum (in the drum

unit). Replace drum unit.

If the defects occur at random intervals, the toner may be leak-

ing from the developer unit or drum unit. Replace developer

unit or drum unit (See page P.1-5-9 or P.1-5 - 10).

1-4-11

Page 56

2F7

(5) Black horizontal streaks.

Print example Causes Check procedures/corrective measures

Defective drum unit's ground. Defective drum unit's ground. The contact (spring) in the drum

ABC 123

Defective drum unit. If a drum unit which is known to work normally is available for

(6) Black vertical streaks.

Print example Causes Check procedures/corrective measures

Flawed main charger roller. Replace the main charger unit (See page P.1-5-11).

ABC

Dirty or flawed drum. Clean the drum or, if it is flawed, replace the drum unit (See

123

Defective drum unit. A streak of toner remaining on drum after printing means that

unit and its counter part, the drum grounding terminal in the

printer, must be in a good contact. (See page P.1-4-9, refer to

figure 1-4-3)

check, replace the current drum unit in the pri nte r with the nor-

mal one. If the symptom disappears, replace the drum unit

with a new one (See page P.1-5-10).

page P.1-5-10).

the cleaning blade (in the drum unit) is not working properly.

Replace the drum unit (See page P.1-5-10).

If a drum unit which is known to work normally is available for

check, replace the current drum unit in the pri nte r with the nor-

mal one. If the symptom disappears, replace the drum unit

with a new one (See page P.1-5-10).

Defective developing roller (developer unit).

(7) Unsharpness.

Print example Causes Check procedures/corrective measures

Defective paper specifications. Paper with rugged surface or dump tends to cause unsharp

EcoPrint setting. The EcoPrint mode can provides faint, unsharp printing

Defective transfer roller. If the transfer roller is contaminated with toner, clean the trans-

Poor contact of engine PWB’s transfer bias output terminal and printer’s contact (spring).

If a developer unit which is known to work normally is available

for check, replace the current developer unit in the printer with

the normal one. If the symptom disappears, replace the devel-

oper unit with a new one.

printing. Replace paper with the one that satisfies the paper

specifications.

because it acts to conserve toner for draft printing purpose.

For normal printing, turn the EcoPrint mode off by using the

operation panel. For details refer to the printer's operation

guide.

fer roller using a vacuum cleaner or by continuously printing a

low density page until the symptom has faded away.

Check the installation position of the engine PWB.

(See page P.1-5-21 and P.1-4-9 , refer to figure 1-4-3)

1-4-12

Page 57

(8) Gray background.

Print example Causes Check procedures/corrective measures

Print density setting. The print density may be set too high. Try adjusting the print

ABC 123

(9) Dirt on the top edge or back of the paper.

Print example Causes Check procedures/corrective measures

Defective drum surface potential. If a drum unit which is known to work normally is available for

Defective main charger unit. Replace the main charger unit (See page P.1-5-11). Defective developing roller (developer

unit).

Toner contamination in various parts. Dirty edges and back of the paper can be caused by toner

ABC 123

Defective transfer roller. If the transfer roller is contaminated with toner, clean the trans-

density. For details refer to the printer's operation guide.

check, replace the current drum unit in the pri nte r with the nor-

mal one. If the symptom disappears, replace the drum unit

with a new one (See page P.1-5-10).

If a developer unit which is known to work normally is available

for check, replace the current developer unit in the printer with

the normal one. If the symptom disappears, replace the devel-

oper unit with a new one (See page P.1-5-9).

accumulated on such parts as the paper chute, paper trans-

portation paths, the bottom of the drum and developer, and the

fuser unit inlet. Clean these areas and parts to remove toner.

fer roller using a vacuum cleaner or by continuously printing a

low density page until the symptom has faded away.

2F7

(10) Undulated printing at the left edge (scanning start position).

Print example Causes Check procedures/corrective measures

This vertical line should be straight.

Defective polygon motor (laser scanner unit).

Defective engine PWB. Replace the engine PWB (See page P.1-5-21).

Replace the laser scanner unit (See page P.1-5-31).

1-4-13

Page 58

2F7

1-4-4 Electric problems

Problem Causes Check procedures/corrective measures

(1) Defective waste toner box detecting.

(2) Defective paper jam detecting. Paper jam frequently occurs. False paper jam message display.

Defective waste toner sensor.

Defective connection between drum PWB (YC1) and connect-L PWB (YC3).

Defective harness between connect-L PWB (YC6) and engine PWB (YC4), or improper connector insertion.

Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21). Defective registration sen-

sor or duplex jam sensor. Defective paper exit sensor,

duplex sensor or face down tray paper full sensor.

Actuators of registration sensor, duplex jam sensor, duplex sensor or face down tray paper full sensor does not operate smoothly.

Replace the drum unit (See page P.1-5-10).

Check the connection of connectors between drum PWB (YC1) and connect-L PWB (YC3). (See page P.1-4-10, refer to figure 1-4-5)

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the engine PWB (See page P.1-5-21).

Replace the paper exit sensor, duplex sensor or face down tray paper full sensor.

Repair or replace.

(3)Defective paper gauge sensing. False paper gauge indication.

(4)Defective paper size detecting. False paper size message display.

(5) Defective message displaying (LCD) [1]. No message appears on the message display (LCD), though the message background is faintly illuminated. (Power is supplied to the operation panel PWB.)

A piece of paper torn from a sheet is caught around actuator of registration sensor, paper exit sensor, duplex sensor, duplex jam sensor or face down tray paper full sensor.

Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21). Defective paper gauge sen-

sor 1 or 2. Actuator of paper gauge

sensor 1 and 2 does not operate smoothly.

Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21). Defective cassette size

switch. Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21).

Defective harness between operation panel PWB (YC1) and main PWB (YC13), or improper connector insertion.

Defective operation panel PWB.

Defective main PWB (system DIMM PWB).

Defective operation panel PWB.

Check visually and remove it, if any.

Replace the engine PWB (See page P.1-5-21).

Repair or replace.

Replace the cassette size switch.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the operation panel PWB.

Replace the main PWB [system DIMM PWB] (See page P . 1-5-25).

Replace the operation panel PWB.

1-4-14

Page 59

Problem Causes Check procedures/corrective measures

2F7

(6) Defective message displaying (LCD) [2]. No message appears on the message display (LCD), even thought the message background does not illuminate faintly. (The power is not supplied to the operation panel PWB.)

(7) "Close rear unit" display is not cancelled to closing the rear unit.

Broken power cord. Replace the power cord. The power cord is not

plugged in properly. No electricity at the AC

power outlet. Defective power source

unit. Defective harness between

operation panel PWB (YC1) and main PWB (YC13), or improper connector insertion.

Defective operation panel PWB.

Defective main PWB (system DIMM PWB).

Defective fuser unit’s drawer connector.

Defective harness between engine PWB (YC6) and fuser drawer connector, or improper connector insertion.

Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21).

Check the contact between the printer’s AC inlet and the AC power outlet.

Measure the AC input voltage.

Replace the power source unit (See page P.1-5-27).

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

Replace the operation panel PWB.

Replace the main PWB [system DIMM PWB] (See page P . 1-5-25).

If a fuser unit which is known to work normally is available for check, replace the current fuser unit in the printer with the normal one. If the symptom disappears, replace the fuser unit with a new one.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

(8) "Close top cover" display is not cancelled to closing the top cover.

(9) "Close left side cover" display is not cancelled to closing the left side cover.

Deformed interlock switch 1's actuator lever.

Defective power source unit.

Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21). Deformed interlock switch

2's actuator lever. Defective harness between

interlock switch 2 and connect-L PWB (YC12), or improper connector insertion.

Defective interlock switch 2. Replace the interlock switch 2. Defective engine PWB. Rep lace the engine PWB (See page P.1-5-21).

Check the bending of the actuator lever of the interlock switch 1, if there is trouble, remedy or replace.

Replace the power source unit (See page P.1-5-27).

Check the bending of the actuator lever of the interlock switch 2, if there is trouble, remedy or replace.

Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.

1-4-15

Page 60

2F7

1-4-5 Mechanical problems

Problem Causes/check procedures Corrective measures

(1) No primary paper feed.

(2) No secondary paper feed.

(3) Skewed paper feed.

(4) Multiple sheets of paper are fed at one time.

(5) Paper jams.

Check if the surfaces of the following rollers are dirty with paper powder: pickup roller, paper feed roller, and MP tray feed roller .

Check if the pickup roller, paper feed roller and MP tray feed roller are deformed.

Defective installation position of paper feed drive unit (paper feed clutch, MP tray paper feed clutch and middle feed clutch) or MP tray paper feed solenoid.

Defective installation position of paper feed motor.

Check if the surfaces of the upper and lower registration rollers are dirty with paper powder.

Defective installation position of paper feed drive unit (paper feed clutch, MP tray paper feed clutch and middle feed clutch) or MP tray paper feed solenoid.

Defective installation position of paper feed motor.

Check if the paper is curled. Change the paper.

Check if the paper is excessively curled. Change the paper. Deformed guides along the paper conveying

path. Check if the contact between the upper and

lower registration rollers is correct.

Check if the press roller is extremely dirty or deformed.

Clean with isopropyl alcohol.

Check visually and replace any deformed rollers.

Check the installation position of paper feed drive unit (paper feed clutch, MP tray paper feed clutch and middle feed clutch) or MP tray paper feed solenoid.

Check the installation position of paper feed motor.

Clean with isopropyl alcohol.

Check the installation position of paper feed drive unit (paper feed clutch, MP tray paper feed clutch and middle feed clutch) or MP tray paper feed solenoid.

Check the installation position of paper feed motor.

Check visually and replace any deformed guides.

Check visually and remedy if necessary. Replace the pressure spring if it is deformed.

Clean or replace the press roller (See page P.1-5-18).

(6) T oner drops on the paper conveying path.

(7) Abnormal noise is heard.

1-4-16

Check if the contact between the heat roller and its separation claws is correct.

Check if the developer unit or drum unit is extremely dirty.

Check if the pulleys, rollers and gears operate smoothly.

Check if the following drive unit are installed correctly: Paper feed drive unit Main drive unit

Repair if any springs are off the separation claws.

Clean the developer unit or drum unit (See page P.1-5-9 or P. 1-5-10).

Grease the bearings and gears.

Correct.

Page 61

2F7

1-5 Assembly and Disass embly

1-5-1 Precautions for assembly and disassembly

(1) Precautions

Be sure to turn the power switch off and disconnect the power plug before starting disassembly. When handling PWBs, do not touch connectors with bare hands or damage the PWB. Do not touch any PWB containing ICs with bare hands or any object prone to static charge. Use only the specified parts to replace the fixing unit thermostat. Never substitute electric wires, as the printer may be seriously damaged.

1-5-1

Page 62

2F7

1-5-2 Outer covers

(1) Detaching and refitting the top cover

Procedure

1. Open the top cover.

2. Remove the two screws.

3. Remove the one connector and then remove the top cover.

Screw

Top cover

Screw

Connector

Figure 1-5-1

1-5-2

Page 63

(2) Detaching and refitting the right cover and left cover

Procedure

1. Remove the paper cassette.

2. Open the MP tray.

3. Open the rear unit.

4. Remove the top cover (See page P.1-5-2).

5. Unlatch the three latches and then remove the right cover.

Right cover

2F7

Latch

6. Unlatch the six latches and then remove the left cover.

Latch

Left cover

Figure 1-5-2

Latch

Figure 1-5-3

Latch

1-5-3

Page 64

2F7

1-5-3 Paper feed section

(1) Detaching and refitting the paper feed assembly (paper feed roller and pickup roller)

Procedure

1. Remove the paper cassette.

2. Slide the paper feed roller pin.

3. While pressing the lever and then remove the paper feed roller assembly.

4. Check or replace the paper feed assembly and refit all the removed parts.

Lock

Paper feed roller pin

Paper feed assembly

(Paper feed roller)

(Pickup roller)

Lever

Figure 1-5-4

1-5-4

Page 65

(2) Detaching and refitting the retard roller

Procedure

1. Remove the paper cassette.

2. Push the bottom plate down until it locks.

3. Unlatch the two latches and then remove the retard guide.

2F7

Paper cassette

Bottom plate

Latch

4. Remove the retard holder (roller) from the retard guide.

5. Check or replace the retard roller and refit all the removed parts.

Retard guide

Latch

Figure 1-5-5

Retard holder (Retard roller assembly)

Retard guide

Figure 1-5-6

1-5-5

Page 66

2F7

(3) Detaching and refitting the registration upper and lower roller

Procedure

1. Remove the developer unit (See page P.1-5-

9).

2. Remove the spring.

3. Pull the registration upper roller.

Spring

Registration upper roller

4. Remove the registraton upper roller from the bush.

5. Remove the gear and bush from the registration upper roller.

Registration upper roller

Bush

Figure 1-5-7

Bush

Gear

Registration upper roller

1-5-6

Figure 1-5-8

Page 67

6. Remove the stopper.

7. Slide the bush.

2F7

Stopper

8. Remove the registration lower roller.

9. Remove the gear and three bushes from the registration lower roller.

10.Check or replace the registration upper and lower roller and refit all the removed parts.

Registration lower roller

Bush

Registration lower roller

Bush

Figure 1-5-9

Bush

Gear

Figure 1-5-10

1-5-7

Page 68

2F7

(4) Detaching and refitting the MP tray paper feed roller

Procedure

1. Remove the MP tray.

MP tray

2. Pull the MP tray paper feed roller holder.

3. Slide the MP tray paper feed roller holder.

4. Remove the MP tray paper feed roller.

5. Check or replace the MP tray paper feed roller and refit all the removed parts.

Figure 1-5-11



MP tray paper feed roller holder

MP tray paper feed roller



1-5-8

Figure 1-5-12

Page 69

1-5-4 Developer section

(1) Detaching and refitting the developer unit

Procedure

1. Open the top cover.

2. Open the MP tray.

3. Remove the developer unit.

4. Check or replace the developer unit and refit all the removed parts.

2F7

Top cover

Developer unit

MP tray

Figure 1-5-13

1-5-9

Page 70

2F7

1-5-5 Drum section

(1) Detaching and refitting the drum unit

Procedure

1. Remove the developer unit (See page P.1-5-

9).

2. Open the left side cover and then remove the waste toner box.

3. Unlock the drum unit lock and then remove the drum unit.

4. Check or replace the drum unit and refit all the removed parts.

Left side cover

Drum unit

Drum unit lock

Figure 1-5-14

1-5-10

Page 71

(2) Detaching and refitting the main charger unit

Procedure

1. Remove the drum unit (See page P.1-5-10).

2. Unlock the lock lever and then remove the main charger unit.

3. Check or replace the main charger unit and refit all the removed parts.

2F7

Main charger unit

Lock lever

Drum unit

Main charger unit

Drum unit

Figure 1-5-15

1-5-11

Page 72

2F7

1-5-6 Transfer section

(1) Detaching and refitting the transfer roller

Procedure

1. Remove the developer unit (See page P.1-5-

9).

2. Remove the drum unit (See page P.1-5-10).

3. Slide the paper chute guide and unhook the hooks.

4. Remove the paper chute guide.

Hook

Paper chute guide

Hook

1-5-12

Figure 1-5-16

Page 73

2F7

5. Remove the shaft from the bushes.

6. Check or replace the transfer roller and refit all the removed parts.

Transfer roller

Shaft

Bush

Transfer roller

Shaft

Bush

Transfer roller

Figure 1-5-17

1-5-13

Page 74

2F7

1-5-7 Fuser section

(1) Detaching and refitting the fuser unit

Procedure

1. Open the rear unit.

2. Insert a flat-blade screwdriver to push the fuser lock (gray colored) on the rear unit and the fuser unit is separated from the rear unit (rails). Do it both ends of the rear unit.

3. Check or replace the fuser unit and refit all the removed parts. Place the fuser unit on the rear unit (rails) and push the fuser lock so that the fuser lock catches the fuser unit. Do it for the both ends of the fuser unit.

Flat-blade screwdriver

Fuser unit

Rail

Rear unit

Fuser unit

Rail

Fuser lock (gray colored)

Rail

Figure 1-5-18

Flat-blade screwdriver

1-5-14

Page 75

(2) Detaching and refitting the fuser heater lamp M and S

Procedure

1. Remove the fuser unit (See page P.1-5-14).

2. Remove the two screws and then open the fuser unit.

2F7

Screw

Fuser unit

Figure 1-5-19

3. Remove the two screws form the fuser heater lamp M and S.

Fuser heater lamp M

Screw

Fuser heater lamp S

Nut

Figure 1-5-20

1-5-15

Page 76

2F7

4. Remove the two screws form the fuser heater lamp M and S.

5. Remove the fuser heater lamp M and S.

6. Check or replace the fuser heater lamp M and S, and refit all the removed parts.

Seat the fuser heater lamp M and S aligning its wattage mark and welding mark faced with the correct direction and side.

Terminal

Nut

Screw

Fuser heater lamp M

Screw

Terminal

Fuser heate lamp S

Nut

Rating mark

Welding side

Screw

Fuser heater lamp M

Fuser heater lamp S

Rating mark

Welding side

Figure 1-5-21

1-5-16

Page 77

(3) Detaching and refitting the heat roller

Procedure

1. Remove the fuser heater lamp M and S (See page P.1-5-15).

2. Remove the heat roller from the fuser upper frame.

3. Remove the heat R bush, heat L bush, heat gear Z46 and heat roller ground plate from the heat roller.

4. Check or replace the heat roller and refit all the removed parts.

Heat L bush

Fuser upper frame

Heat roller

Heat R bush

2F7

Heat gear Z46

Heat roller ground plate

Figure 1-5-22

1-5-17

Page 78

2F7

(4) Detaching and refitting the press roller

Procedure

1. Remove the fuser unit (See page P.1-5-14).

2. Open the fuser unit (See page P.1-5-15).

3. Remove the press roller from the fuser lower frame.

4. Remove the two bearings.

5. Check or replace the press roller and refit all the removed parts.

Bearing

Press roller

Bearing

Fuser lower frame

Figure 1-5-23

1-5-18

Page 79

(5) Detaching and refitting the fuser thermistor M, fuser thermistor S and thermal cutout

Procedure

1. Remove the fuser unit (See page P.1-5-14).

2. Turn the fuser unit bottom side up.

Cord cover

3. Unlatch the two latches and then remove the cord cover.

4. Unlatch the four latches and then remove the fuser drawer connector.

5. Remove the two connectors.

Latch

2F7

6. Remove the heat roller (See page P.1-5-17).

7. Remove the one screw and then remove the fuser thermistor S.

Fuser drawer connector

Fuser thermistor S

Latch

Connector

Figure 1-5-24

Connector

Fuser unit

Screw

Figure 1-5-25

1-5-19

Page 80

2F7

8. Remove the one screw (nut) and then remove the fuser thermistor M.

Screw

Fuser thermistor M

Nut

Figure 1-5-26

9. Remove the two screws (nuts) and then remove the terminal and cord plate.

10.Remove the thermal cutout

11.Check or replace the fuser thermistor S and M and thermal cutout and refit all the removed parts.

Screw

Cord plate

Terminal

Thermal

cutout

Nut

Figure 1-5-27

1-5-20

Page 81

1-5-8 PWBs

(1) Detaching and refitting the engine PWB

2F7

Procedure

1. Remove the fuser unit (See page P.1-5-9).

2. Remove the top cover (See page P.1-5-2).

3. Remove the left cover (See page P.1-5-3).

4. Remove the PSU fan motor (See page P.15-27).

5. Stand the printer front side up.

6. Remove the five screws and then remove the bottom plate 1.

7. Remove the four screws and then remove the bottom plate 2.

Screw

Bottom palte 1

Screw

Bottom palte 2

Screw

8. Remove the two wires from the hooks and notches.

9. Open the DU guide (duplex cover).

Figure 1-5-28

DU guide (duplex cover)

Notch

Wire

Hook

Figure 1-5-29

1-5-21

Page 82

2F7

10.Detach the joint.

11.Remove the eight screws and then remove the DU base.

Joint

DU base

12.Remove the four snaps.

13.Remove the one tab.

14.Remove the one screw and then remove the grounding terminal.

Screw

Figure 1-5-30

1-5-22

Snap

Tab

Grounding terminal

Screw

Figure 1-5-31

Snap

Page 83

2F7

15.Remove the seven connectors (A).

16.Remove the left wire guide.

17.Remove the three screws and then remove the engine PWB assembly.

18.Remove the two connectors (B) from the engine PWB.

Screw

Engine PWB assembly

Connector (A)

Left wire guide

Connector (B)

Screw

Connector (A)

Screw

Connector (B)

Engine PWB assembly

Figure 1-5-32

1-5-23

Page 84

2F7

19.Remove the one connector.

20.Remove the two screws (A) and then remove the HV plate.

21.Remove the two screws (B) and then remove the engine R ground plate, engine L ground plate and shield plate.

22.Check or replace the engine PWB and refit all the removed parts. To replace the engine PWB, remove the EEPROM from the old engine PWB and mount it to the new engine PWB.

HV plate

Screw (A)

Connector

Screw (A)

Screw (B)

Engine PWB

EEPROM

Screw (B)

Engine R

grounding plate

Engine L grounding plate

Shield plate

Figure 1-5-33

1-5-24

Page 85

(2) Detaching and refitting the main PWB

Procedure

1. Remove the top cover (See page P.1-5-2).

2. Remove the right and left cover (See page P.1-5-3).

3. Remove the six connectors from the main PWB.

4. Remove the two screws and then remove the connect-R PWB.

2F7

Connectors (five)

Main PWB

Screw

Connect-R PWB

5. Remove the six screws and then remove the controller box (main PWB).

Screw

Controller box

Screw

Figure 1-5-34

Screw

Figure 1-5-35

1-5-25

Page 86

2F7

6. Remove the screw and then open the inner cover.

7. Remove the connector.

Inner cover

Screw

Connector

8. Remove the five screws and then remove the main PWB from the controller box.

9. Check or replace the main PWB and refit all the removed parts.

Screw

Main PWB

Figure 1-5-36

Screw

Controller box

Screw

1-5-26

Figure 1-5-37

Page 87

(3) Detaching and refitting the power source unit

Procedure

1. Remove the top cover (See page P.1-5-2).

2. Remove the right and left cover (See page P.1-5-3).

3. Remove the one connector (YC11) form the connect-L PWB.

4. Remove the two hooks and then remove the PSU fan motor.

2F7

Connector (YC11)

Connect-L PWB

Hook

PSU fan motor

Figure 1-5-38

Hook

1-5-27

Page 88

2F7

5. Remove the seven screws and two grounding terminals.

Screw

Grounding terminal

Screw

6. Remove the AC inlet.

7. Remove the one connector.

8. Remove the PWB connector between connect-L PWB and then remove the power source unit.

9. Remove the power source unit.

10.Check or replace the power source unit and refit all the removed parts.

Screw

Figure 1-5-39

PWB connector

Connect-L PWB

AC inlet

Connector

Power source unit

1-5-28

Figure 1-5-40

Page 89

1-5-9 Others

(1) Detaching and refitting the paper feed drive unit

2F7

Procedure

1. Remove the paper cassette.

2. Remove the developer unit (See page P.1-5-

9).

3. Remove the top cover (See page P.1-5-2).

4. Remove the right cover (See page P.1-5-3).

5. Remove the five connectors from the connect-R PWB.

6. While opening the four hooks and then remove the wires.

7. Remove the wires from the notch of right fan motor.

8. Remove the right fan motor.

9. Remove the three screws and then remove the paper feed drive unit.

10.Check or replace the paper feed drive unit and refit all the removed parts.

11.To refit the paper feed drive unit, make sure mesh of gears.

Right fan motor

Hook

Notch

Hook

Figure 1-5-41

Connectors

Hook

(five)

Connect-R PWB

Gear

Paper feed drive unit

Screw

Figure 1-5-42

Screw

Paper feed drive unit

1-5-29

Page 90

2F7

(2) Detaching and refitting the main drive unit

Procedure

1. Remove the top cover (See page P.1-5-2).

2. Remove the right cover (See page P.1-5-3).

3. Remove the controller box (See page P.1-5-

25).

4. Remove five screws and then remove the main drive unit.

5. Check or replace the main drive unit and refit all the removed parts.

Screw

Main drive unit

Screw

Figure 1-5-43

1-5-30

Page 91

(3) Detaching and refitting the laser scanner unit

Procedure

1. Remove the top cover (See page P.1-5-2).

2. Remove the right cover (See page P.1-5-3).

3. Remove the three connectors from the main PWB.

4. Remove the four screws and then remove the laser scanner unit.

5. Check or replace the laser scanner unit and refit all the removed parts.

Screw

Laser scanner unit

2F7

Screw

Connectors (three)

Figure 1-5-44

Main PWB

1-5-31

Page 92

2F7

This page is intentionally left blank.

1-5-32

Page 93

2F7

1-6 Firmware

1-6-1 Downloading firmware

The system firmware can be update by downloading new firmware. Downloading can be made either by directly sending the new firmware from PC via the parallel interface or using a memory card that contains the new firmware.

Firmware file name example

Software ID

S2F7_1000001021.cmp

Product code 2F7: This machine

Pause (under bar)

Compression

Pause (period)

Build number

Update history

Classification (Normally: 0)

Supplement (Normally: 00)

Firmware category 10: Engine controller 30: Main controller

Figure 1-6-1

1-6-1

Page 94

2F7

(1) Downloading the firmware from the parallel interface

To download the system firmware using the parallel interface, use the procedure below. Note that you can’t download both the system and engine firmware at a time.

1. Turn printer and PC power off.

2. Connect the parallel printer cable between the PC and the printer.

Parallel interface connector

To PC

Parallel printer cable

3. Turn printer power on.

4. Confirm that display (1) is displayed.

5. At the DOS prompt, enter command (2). * Enter UPGR “SYS” in capitals.

6. Confirm that message display (3) is displayed.

7. At the DOS prompt, enter command (4) so that the system firmware (example: S2F7_3000001021.cmp) is copied to the printer.

8. Message display (5) is displayed during downloading. When message display (6) is displayed to indicate downloading is finished, turn printer power off and then turn on.

9. Confirm that message display (7) is displayed after warm-up.

10.Print a status page. Check that the status page shows the updated firmware version.

Figure 1-6-2

Message display

(1)

Ready

PC DOS display

(2)

c:/echo !R! UPGR'SYS';>prn

(3)

Supervisor mode parallel waiting

(4)

c:/>Copy /b S2F7_3000001021.cmp prn

(5)

Downloading

 

(6)

2F7_3000.001.021 05/10/26 [E1F9]



Power switch: Off/On

(7)

Ready







Product code 2F7: This machine



Firmware category 10: Engine controller 30: Main controller



Supplement (Normally: 00)



Classification (Normally: 0)



Update history



Build number



Release date: Year/Month/Day



Checksum

1-6-2

Figure 1-6-3

Page 95

(2) Downloading the firmware from the memory card

The procedure below provides how to download firmware from a memory card. Note that you can’t download both the system and engine firmware at a time.

1. Turn printer power off.

2. Remove two screws and then remove the interface slot cover.

3. Insert the memory card into the printer's memory card slot.

2F7

4. Turn printer power on.

5. Press Menu key on the printer's operation panel and carry out the memory card formatting procedure (1).

6. When formatting is complete, turn printer power off.

Memory card slot

Interface slot cover

Ready

Memory Card >

>Format

(1)

>Format ?

Processing

Figure 1-6-4

Message display

Press the Menu key.

Press the  key.

Press the OK key.

Memory card

Screw

Operation panel keys

Press the  or  key.

7. Remove the formatted memory card from the memory card slot.

8. Insert the memory card to the PC's slot or to the adaptor.

9. Copy the firmware file to download to the root directory of the memory card.

10.Remove the memory card from the PC's slot or the adaptor.

(Format information is automatically printed.)

Ready

Figure 1-6-5

To PC

Memory card

Adaptor (Memory card read/writer)

Figure 1-6-6

1-6-3

Page 96

2F7

11.Confirm that the printer's power switch is set to off.

12.Insert the memory card into the printer's memory card slot.

13.Turn printer power on.

14.When message display (1) is displayed to detect firmware in the memory card.

15.Message display (2) is displayed during downloading.

16.When message display (3) is displayed to indicate downloading is finished.

17.Turn printer power off.

18.Remove the memory card from memory card slot.

19.Turn printer power on.

20.Confirm that message display (4) is displayed after warm-up.

21.Print the status page. Print the status page to check that the firmware version has been updated.

Memory card slot

(1)

(2)

(3)

Figure 1-6-7

Power switch: On

Supervisor mode

Supervisor mode CF-card reading









2F7_3000.001.021 05/10/26 [E1F9]



Power switch: Off





Message display



Product code 2F7: This machine



Firmware category 10: Engine controlle 30: Main controller



Supplement (Normally: 00)



Classification (Normally: 0)



Update history



Build number



Release date: Year/Month/Day



Checksum

Memory card

1-6-4

Memory card

slot

(

Power switch: On

Ready

Figure 1-6-8

Page 97

(3) Downloading the firmware from the USB memory

The procedure below provides how to download firmware from a memory card. Note that you can’t download both the system and engine firmware at a time.

1. Turn printer power off.

2. Connect the USB memory to the PC.

3. Copy the firmware file to the root directory of the USB memory.

4. Remove the USB memory from the PC and then insert the USB memory into the

USB memory slot

printer's USB memory slot.

2F7

USB memory

5. Turn printer power on.

6. When message display (1) is displayed to detect firmware in the USB memory.

7. Message display (2) is displayed during downloading.

8. When message display (3) is displayed to indicate downloading is finished.

9. Turn printer power off.

10.Remove the USB memory from USB memory slot.

11.Turn printer power on.

12.Confirm that message display (4) is displayed after warm-up.

13.Print the status page. Print the status page to check that the firmware version has been updated.

Power switch: On

Supervisor mode

(1)

Supervisor mode

(2)

CF-card reading





2F7_3000.001.021

(3)

05/10/26 [E1F9]



Power switch: Off

USB memory slot

Figure 1-6-9

Message display

















  



Product code 2F7: This machine Firmware category 10: Engine controlle 30: Main controller

Supplement (Normally: 00)

Classification (Normally: 0)

Update history

Build number Release date:

Year/Month/Day

Checksum

Power switch: On

Ready

(

USB memory

Figure 1-6-10

1-6-5

Page 98

2F7

This page is intentionally left blank.

1-6-6

Page 99

2F7

2-1 Mechanical construction

2-1-1 Paper feed section

Paper feed section consists of the paper feed unit that feeds paper from the paper cassette and the MP tray paper feed unit that feeds paper from the MP tray, and the paper feed conveying section that conveys the fed paper to the transfer/ separation section.

(1) Paper cassette paper feeding

Paper cassette is the universal type that is applicable to various paper sizes by adjusting the side guides and paper stopper and approximate 250 pages can be put in. Mechanism in the paper cassette consists of the bottom plate that lifts the paper in order to let it touch the pickup roller and the retard roller that prevents papers from mult ipl e feed ing . P aper that is drawn out by the rotation of pickup roller of the paper cassette paper feed section is then sent in between the feed roller and the retard roller. Function of the built-in torque limiter in the retard roller gives weak resistance force against the rotation. Normally, when only a page is drawn out by the rotation of pickup roller, the paper is conveyed to the printer by the rotation of feed roller on its own. If the pickup roller drew out two lapped pages someway, the upper paper is conveyed by the feed roller and the lower paper stays due to the rotation resistant force of the retard roller because the friction force between papers is smaller than the rotation resistance force of the retard roller and then the multiple paper feed can be prevented.



YC10-3 YC10-4

YC10-5

Engine PWB

YC8-8



(1) Pickup roller (2) Paper feed roller (3) Feed holder (4) Retard roller

MMOTONN MMOTRDYN MMOTCLK

FEEDDRN







Figure 2-1-1 Paper cassette section

(5) Retard holder (6) Bottom plate (7) Retard guide (8) Cassette base

3 4 5

Connect-R PWB

Main

motor

Feed clutch







Figure 2-1-2Paper cassette section block diagram

2-1-1

Page 100

2F7

(2) MP tray paper feed section

The MP tray can contain about 100 pages. Feeding is performed by the rotation of the MP tray feed roller from the MP tray. Function of the MP tray friction pad prevents papers from multiple feeding.













Figure 2-1-3 MP tray paper feed section

Engine PWB

YC9-6

YC8-8

YC10-3 YC10-4 YC10-5

MPFDRN

FEEDDRN

MMOTONN MMOTRDYN MMOTCLK

(1) MP tray paper feed roller (2) Bottom plate (3) MP tray frame (4) MP tray separator (5) MPF base (6) MP tray cover

Connect-R PWB

3 4 5

Main motor

MP tray paper feed solenoid

Middle feed clutch

2-1-2

Figure 2-1-4MP tray paper feed section block diagram

Kyocera FS-6950DN Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1-1 Specifications

1-1-1 Specifications

1-1-2 Parts names

(1) Overall

(2) Operation panel

1-1-3 Machine cross section

1-2-1 Installation environment

1-2-2 Unpacking and installation

(1) Installation procedure

1-2-3 Installing the expanding memory (optional)

1-2-4 Installing the memory card or hard disk (optional)

1-2-5 Installing the network interface card (optional)

1-3 Maintenance Mode

1-3-1 Maintenance mode

(1) Executing a maintenance item

1-4-1 Paper misfeed detection

(1) Paper misfeed indication

(2) Paper misfeed detection

1-4-2 Self-diagnostic function

(1) Self-diagnostic function

(2) Self diagnostic codes

1-4-3 Image formation problems

(1) Completely blank printout.

(2) All-black printout.

(3) Dropouts.

(4) Black dots.

(5) Black horizontal streaks.

(6) Black vertical streaks.

(7) Unsharpness.

(8) Gray background.

(9) Dirt on the top edge or back of the paper.

(10) Undulated printing at the left edge (scanning start position).

1-4-4 Electric problems

1-4-5 Mechanical problems

1-5-1 Precautions for assembly and disassembly

(1) Precautions

1-5-2 Outer covers

(1) Detaching and refitting the top cover

(2) Detaching and refitting the right cover and left cover

1-5-3 Paper feed section

(1) Detaching and refitting the paper feed assembly (paper feed roller and pickup roller)

(2) Detaching and refitting the retard roller

(3) Detaching and refitting the registration upper and lower roller

(4) Detaching and refitting the MP tray paper feed roller

1-5-4 Developer section

(1) Detaching and refitting the developer unit

1-5-5 Drum section

(1) Detaching and refitting the drum unit

(2) Detaching and refitting the main charger unit

1-5-6 Transfer section

(1) Detaching and refitting the transfer roller

1-5-7 Fuser section

(1) Detaching and refitting the fuser unit

(2) Detaching and refitting the fuser heater lamp M and S

(3) Detaching and refitting the heat roller

(4) Detaching and refitting the press roller

(5) Detaching and refitting the fuser thermistor M, fuser thermistor S and thermal cutout

1-5-8 PWBs

(1) Detaching and refitting the engine PWB

(2) Detaching and refitting the main PWB

(3) Detaching and refitting the power source unit

1-5-9 Others

(1) Detaching and refitting the paper feed drive unit

(2) Detaching and refitting the main drive unit

(3) Detaching and refitting the laser scanner unit

1-6-1 Downloading firmware

(1) Downloading the firmware from the parallel interface

(2) Downloading the firmware from the memory card

(3) Downloading the firmware from the USB memory

2-1-1 Paper feed section

(1) Paper cassette paper feeding

(2) MP tray paper feed section