Parts marked with "!" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safty and performance of the set.
This document has been published to be used
SHARP CORPORATION
for after sales service only.
The contents are subject to change without notice.
AR-161AR-161
Warning!
This product is a class A product.
If it is operated in households, offices or similar surroundings, it
can produce radio interferences at other appliances, so that the
user has to take adequate countermeasures.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
VAROITUS!
LAITTEEN KÄYTTÄMINEN
MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA
TAVALLA SAATTAA ALTISTAA
KÄYTTÄJÄN
TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE
NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE.
VARNING
OM APPARATEN ANVÄNDS PÅ
ANNAT SÄTT ÄN I DENNA
BRUKSANVISNING
SPECIFICERATS, KAN
ANVÄNDAREN UTSÄTTAS FÖR
OSYNLIG LASERSTRÅLNING,
SOM ÖVERSKRIDER GRÄNSEN
FÖR LASERKLASS 1.
CAUTION
Laserstrahl
VORSICHT
ADVARSEL
INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.
USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER
UDE AF FUNKTION. UNDGA UDSAETTELSE FOR STRÅLING.
ADVERSEL
VARNING
VARO!
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES.
UNNGÅ EKSPONERING FOR STRÅLEN.
OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR
URKOPPLADE. STRÅLEN ÄR FARLIG. BETRAKTA EJ STRÅLEN.
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTÖNTÄ
LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
This model is a digital personal copier produced with key words of
"Comfort able copy, Clear copy, Easy copy" providing high copy performances and copy productivity.
• First-copy time is only 7.2 seconds (normal mode).
• Copying speed is 16 copies/min., which adapts to business use,
allowing improvement of working efficiency.
B. High-quality digital image
• High-quality copying at 600 dpi is performed.
• In addition to the automatic exposure mode, the manual exposure
can be adjusted in five steps.
• The photo mode copying function allows clear copying of delicate
halftone original images such as monochrome photos and color
photos. Photo mode is adjustable in five steps
C. Substantial copying features
• Zoom copying from 50% to 200% in 1% increments can be per-
formed.
• Continuous copying of maximum 99 sheets can also be per-
formed.
• Useful special features such as the XY zoom, black and white
reverse, and dual page copy are available.
• Toner save mode reduces toner consumption by approximately
10%.
• User programs allow setting/modification of functions for customer
needs. Also the user programs allow the internal auditor to be
controlled.
D. Scan once/ Print many (Only AR-161 for
USA/Canada)
• The copier is equipped with a 1-page memory buffer. This memory
allows the copier to scan an original 1 time only and make up to 99
copies. This feature allows for improved workflow, reduced operating noise from the copier and reduced wear and tear on the scanning mechanism, which provides for a higher reliability.
E. Optional features
• An optional single pass feeder (SPF) allows automatic document
feeding of up to 30 sheets.
• An optional electronic sort board allows many useful copier fea-
tures to be used. Multiple sets of copies can be sorted without the
aid of a sorter and each set can be offset from the previous set.
Also the erase, margin shift, and 4 in 1 and 2 in 1 functions are
available. (To use the 2 in 1 and 4 in 1 and sort/group functions,
an optional SPF is also needed.) (Offset only for AR-161)
• This copier can be used as a laser printer by installing an optional
printer upgrade kit. (Depends on the destination)
• This copier can be used as a facsimile machine by installing an
optional facsimile upgrade kit. (Depends on the destination)
F. Environmentally friendly design
• Paper output tray is housed in the copier for space saving.
• Preheat mode and auto power shut-off mode are provided to
reduce power consumption in standby mode.
4. System configuration
Single pass feeder
(AR-SP2)
500-sheet paper feed unit
(AR-DE6)
250-sheet paper feed unit
(AR-DE5)
Electronic sorting kit (AR-EB3)
*Facsimile expansion kit (AR-FX2)
*Printer expansion kit (AR-PB8)
*LCD panel kit (AR-PA1)
*Job separator tray (AR-TR2)
*PS2 expansion kit (AR-PS1)
*There may be no setting for AR-FX2, AR-PB8, AR-PA1,
AR-TR2, and AR-151 depending on the destination.)
5. Copier installation
Do not install your copier in areas that are:
• damp, humid, or very dusty
• exposed to direct sunlight
• poorly ventilated
• subject to extreme temperature or humidity changes, e.g., near an
air conditioner or heater.
• Be sure to allow the required space around the machine for servic-
ing and proper ventilation.
4" (10 cm)
1 – 1
AR-161
[2] SPECIFICATIONS
1. Copy mode
A. Type
TypeDesk-top
B. Copy speed
(1) Basic speed
1 scan 1 copy16 sheets/min
1 scan multi copyNot available
(Available for AR-161 for USA/Canada)
Condition: Copy speed in the normal copy from all the paper feed
reversion
2 in 1, 4 in 1v
Rotation copyv
Memory copy✕ (AR-161 for USA/Canada: Available)
Pre-heat functionF Conditions set by the user program
Auto power shut
off function
Auto tray
switching
Message displayv (FAX/Printer extension)
User programF
Total counterF
*
: By the document size set key
v: When an option is installed
F (APS not available by flowing in during
use of SPF)
F (AMS not available by flowing in during
use of SPF)
F Vertical/Horizontal: 50 ∼ 200%
the use of SPF
F Whole surface only
F Conditions set by the user program
F
2 – 2
AR-161
P. machine composition
Model
AR-160Standard model
AR-161Standard model (with shifter)
(USA/Canada: with memory copy)
(1) Option
MachineModelPower supply
250 sheets paper feed unitAR-DE5Supplied by the copier.
500 sheets paper feed unitAR-DE6Supplied by the copier.
SPFAR-SP2Supplied by the copier
Electronic sorting kitAR-EB3Supplied by the copier.
Printer expansion kitAR-PB8Supplied by the copier.
Facsimile extension kitAR-FX2Supplied by the copier.
LCD panel kit
DV blade× 10
6Protective coverMG cover× 10AR-200MG1
7Drum kitDrum
Drum fixing plate
8Blade kitBlade× 10AR-200CB1
Mocket (F/R)Each × 10
* 1 Production in China for USA
Note: Maintenance parts other than mentioned above must be ordered through the parts department using the proper part number.
DV blade× 10
6Protective coverMG cover× 10AR-200MG-C
7Drum kitDrum
Drum fixing plate
8Blade kitBlade× 10AR-200CB-C1
Mocket (F/R)Each × 10
Note: Maintenance parts other than mentioned above must be ordered through the parts department using the proper part number.
× 115K AR-200TD-C4Life setting by A4 6%
× 130K AR-200CR-C10
Product name of
other company
PackageRemark
document
document
3 – 2
AR-161
2. Environment conditions
A. Transport condition
(1) Transport conditions
Humidity (%)
Temperature
(2) Storage conditions (packed conditions)
3. Production number identification
<TD cartridge>
The label on the drum cartridge shows the date of production.
B
Destination
(∗)
Indicates production in China.
The end digit of production year
∗: Destination
DivisionNo.
Japan option1
Ex option2
Japan, same pack6
Ex, same pack7
Serial number
(00001-99999)
Production
month
January
~
September
October
November
December
1
~
9
0
X
Y
Humidity (%)
B. Use conditions
Humidity (%)
Temperature
Use environment
conditions
Temperature
<Drum cartridge>
The label on the drum cartridge shows the date of production.
Ver. A
The end digit of production year
1
Serial number (for each
month) (00001-99999)
Factory
DivisionNo.
Ex production1
Option2
Same pack3
Production
month
January
~
September
October
November
December
1
~
9
0
X
Y
C. Life (packed conditions)
Photoconductor drum (36 months from the production month)
Developer, toner (24 months from the production month)
3 – 3
AR-161
4. Consumable parts recycling procedure
A. TD cartridge
1) Check the external view.
Note: Be careful especially of breakage of the pins and the ATC
sensor connector shown below.
2) Remove the waste toner box unit.
4) Remove the DV blade.
Note: Be sure to remove adhesive completely.
Remove adhesive together with the base PET.
5) Tilt the developing unit, rotate the DV gear clockwise, and
remove developer.
6) Clean and remove developer on the MG roller and toner on the
developing doctor completely with a vacuum cleaner or an air
blower.
7) Shake the developer bottle about 10 times and supply developer
to the developing unit.
Turn the stirring roller to distribute developer evenly.
8) Install the toner box.
9) Shake the toner bottle about 20 times and install the toner supply hose to the toner bottle.
10) Remove the toner cap. While visually inspecting from the toner
supply port, stop the TH shaft at the vertical position. (The TH
mylar is on the lower side.) (Turn the gear on the back of the
toner box counterclockwise to set the TH mylar on the lower
side.)
3) Remove the developing unit.
3 – 4
AR-161
11) Face the toner supply port of the toner box upward with the
toner bottle put straight, and insert the supply hose into the toner
supply port.
17) Shake the developing unit 5 times left and right horizontally.
18) Check the distribution state of developer on the MG roller.
Rotate the MG roller and visually check for no improper distribution of developer which may be caused by foreign materials.
19) Mark the number of times of recycling on the back of the toner
box with white paint.
Max. times of recycling: 5 times
12) Lift the toner bottle and supply toner.
13) Remove the supply hose from the toner box with care not to spill
toner, and attach the toner cap.
Note: If the toner cap is not attached properly, toner splash may
occur.
14) Install the waste toner box.
15) Check the operations of the DV lever and the toner box shutter.
16) Wipe and clean the developer unit with alcohol, and attach the
DV blade to it.
(Note) • Dry alcohol completely before attaching the DV blade,
• When attaching the DV blade, be careful not to scratch it
and eliminate slack.
• After attaching, be careful not to scratch and damage the
DV blade.
B. Drum unit
1) Check the external view.
• Check for damage or cracks on the boss and the boss hole.
• Check to insure that the waste toner pipe shutter slides
smoothly.
• Check to insure that the start ring and the CRU washer rotate
smoothly.
3 – 5
AR-161
2) Remove the drum cover.
3) Remove the drum fixing plate and the photoconductor drum.
(Note) Dispose the drum fixing plate which was removed.
6) Remove the cleaning blade.
Note: Dispose the cleaning blade which was removed.
7) Clean the cleaning section and the waste toner pipe to remove
waste toner completely with a vacuum cleaner.
8) Remove the felt and duplex tape completely.
Note: Be careful not to scratch or bend the sub blade.
9) Attach the cleaning blade.
10) Attach the felt.
4) Check the cleaning blade and the red felt for no damage.
• If there is any damage, execute all procedures from item 5)
and later.
• If there is no damage, execute the procedure of item 12).
5) Remove the main charger.
(Cleaning the screen grid and the sawteeth.)
3 – 6
AR-161
11) Attach the main charger.
12) Attach the drum fixing plate and the photoconductor drum.
Apply grease to the inside of the photoconductor drum. (Dia. 2)
13) Attach the detection gear.
Note:• The detection gear is not installed to the drum cartridge
packed with the main body. Add a new one.
14) Attach the drum cover.
Note: After attaching the drum cover, do not make a copy.
15) Mark the number of times of recycling on the side of the cover
with white paint.
Max. times of recycling: 5 times
1Interrupt key and indicator2Copy quantity display3ZOOM indicator
4Copy ratio display key5Zoom keys6PAPER SIZE ENTER key
7AUDIT CLEAR key8PAPER SIZE indicators9Alarm indicators
10 POWER SAVE indicator11 SPF indicator12 Output tray full indicator
13 B/W REVERSE key and indicator14 XY-ZOOM key and indicator15 SORT/GROUP key and indicators
16 ORIGINAL DATA indicator17 2 IN 1 / 4 IN 1 key and indicators18 AUTO/MANUAL/PHOTO key and
indicators
19 Light and dark keys and indicators20 Numeric keys21 Zero key
22 CLEAR key23 START key and indicator24 CLEAR ALL key
25 PRESET RATIO selector keys and
indicators
28 TRAY SELECT key29 AUTO IMAGE key and indicator30 Paper feed location/misfeed location
31 DUAL PAGE COPY key and indicator32 ERASE key and indicators33 MARGIN SHIFT key and indicator
26 ORIGINAL SIZE ENTER key and
indicators
27 AUTO PAPER SELECT indicator
indicators
* 1
ON: Indicates that the machine is in the energy saving (pre-heat)
mode.
Blink: Indicates that the machine is in the process of resetting from
the energy saving mode or just after supplying the power.
(During warmup)
OFF: Indicates that resetting from the energy saving mode is com-
pleted and that the fusing temperature is in ready state.
The combinations of the above display lamps are as follows:
(F = ON, D = OFF)
Lamp
Pre-heat lampBlinkDD
Ready lampDFD
Other lampsFFF
Lamp
Pre-heat lampFFBlinkBlink
Ready lampFDFD
Other lampsFDFF
Immediately after
power ON
Energy
saving mode
(Pre-heating)
Energy
saving mode
(Auto power
shut off)
ReadyCopying
Resetting
from energy
saving mode
Copy is
started during
resetting from
energy saving
mode
* 2
Maintenance lamp
When the set count number (set by the simulation) is reached,
the lamp lights up. The machine does not stop.
TD cartridge replacement required indicator
When toner density is lower than a specified level, the TONER
DEVELOPER CARTRIDGE REPLACEMENT indicator lights up
to warn the user.
If toner is not added after approximately 10 sheets are copied,
the indicator starts blinking and machine starts to supply toner.
(Toner Developer cartridge replacement indicator keeps lighting
up)
If toner density is not back to specific level after two minutes, the
READ indicator goes out and Toner Developer indicator starts
blinking, and the copier stops.
Photoconductor cartridge replacement lamp
When the copy count reaches 29,000 after installing a
Photoconductor cartridge, the lamp lights up.
When 1,000 copy is made after that, the lamp blinks instead of
lighting. The machine does not stop.
Press and hold the clear key for 5 sec in the user simulation
mode to display the remaining life of the photoconductor
cartridge in 3 digits x 2 lines on the copy quantity display.
Paper required indicator
Misfeed indicator
4 – 2
4. Motor, solenoid, clutch
AR-161
1
23
4
5
6
7
8
9
13
No.NameCodeFunction, operation
1Exhaust fan motorVFMCools the inside of the machine.
2Shifter motorShifts the paper exit tray. (AR-161)
3Toner motorTMToner supply
4Mirror motorMRMDrives the optical mirror base (scanner unit).
5Cooling fan motorCFMCools the inside of the machine.
6Main motorMMDrives the machine.
7Paper feed solenoidCPFS1Solenoid for paper feed from cassette
8Resist roller solenoidRRSResist roller rotation control solenoid
9Manual paper feed solenoidMPFSManual paper feed solenoid
10Manual paper transport clutchMPTCDrives the manual paper transport roller.
11Manual paper feed clutchMPFCDrives the manual paper feed roller.
12Paper feed clutchCPFC1Drives the cassette paper feed roller.
13PS clutchRRCDrives the resist roller
11 1012
4 – 3
AR-161
5. Sensor, switch
1234765
8
9
10
11
15
13
12
14
No.NameCodeFunction, operation
1Mirror home position sensorMHPSDetects the mirror (scanner unit) home position.
2Cassette detection switchCSD1Cassette detection
3Toner density sensorTCSToner quantity detection
4Paper exit sensor (paper exit side)POD1Detects paper exit.
5Right door switchDSWRSide door open/close detection
6Paper full sensorPaper exit tray section full detection <For JOB separator>
7Lift sensorPaper feed tray lift up detection <For JOB separator>
8Paper exit sensor (DUP side)POD2Paper transport detection
9ThermistorFusing section temperature detection
10ThermostatFusing section abnormally high temperature detection
11Paper transport sensorPPDPaper transport detection
12Manual sensorMPEDManual transport detection
13Cassette paper sensorPED1Cassette paper empty sensor
14Drum reset switchDRSTNew drum detection switch
15Power switchMAIN SWTurns ON/OFF the main power source.
4 – 4
6. PWB unit
AR-161
12
8
3
4
5
6
7
No.NameFunction, operation
1Copy lamp invertor PWBCopy lamp control
2Power PWBAC power input/DC power control
3High voltage PWBHigh voltage control
4CCD sensor PWBImage scanning
5Main PWB (MCU)Machine control/Image process
6Paper exit interface PWBPaepr exit, finishing control
7Electronic sort functionOperation panel input/Display
8Operation main PWBOperation panel input/Display, operation panel section control
4 – 5
AR-161
7. Cross sectional view
12345
6
18
7
8
9
19
10
11
12
17
No.NameFunction/Operation
1Copy lampImage radiation lamp
2Copy lamp unitOperates in synchronization with No. 2/3 mirror unit to radiate documents sequentially.
3LSU unitConverts image signals into laser beams to write on the drum.
4Lens unitReads images with the lens and the CCD.
5MC holder unitSupplies negative charges evenly on the drum.
6Paper exit rollerUsed to discharge paper.
7Transport rollerUsed to transport paper.
8Upper heat rollerFuses toner on paper (with the teflon roller).
9Lower heat rollerFuses toner on paper (with the silicon rubber roller).
10Drum unitForms images.
11Transfer charger unitTransfer images (on the drum) onto paper.
12Resist rollerTakes synchronization between the paper lead edge and the image lead edge.
13Manual paper feed trayManual paper feed tray
14Manual paper feed rollerPicks up paper in manual paper feed.
15Manual transport rollerTransports paper from the manual paper feed port.
16Paper feed roller (semi-circular roller)Picks up paper from the cassette.
17MG rollerPuts toner on the OPC drum.
18No. 2/3 mirror unitReflects the images from the copy lamp unit to the lens unit.
19Waste toner transport rollerTransports waste toner to the waste toner box.
13141516
4 – 6
AR-161
[5] UNPACKING AND
INSTALLATION
1. Installation of machine
A. Installing conditions
Since the machine performance is largely affected by the installing
place conditions, take enough considerations on the following items
1) Environment
• Avoid installation at a place with direct sunlight. If not, the plastic
parts may be deformed.
• Avoid installation near a heater, a humidifier, or an air conditioner
where humidity and temperature are extremely high or low. If not,
paper may be dampened and dew is formed inside the machine,
causing paper jam or dirty copies.
• Avoid installation at a dusty place. If dust enters the machine, dirty
copy or a trouble may be caused.
• Avoid installation at a place with vibrations. If not, a machine
trouble may be caused.
• Avoid installation at a poorly ventilated place.
• Avoid installation at a place that is filled with ammonium gas. If the
copier is installed near a diazo-copier, dirty copies may be
resulted.
2) Space around the copier
• Allow a space of more than between the copier rear side and the
wall.
3) Power source
• Use an exclusive-use power outlet of 15A and 100V or more. If the
power plug of this machine is inserted into a power outlet commonly used with other illumination units, flickers of the lamp may
be resulted. Use a power outlet which is not used commonly with
any illumination units.
• Avoid complex wiring.
4) Grounding wire connection.
• To avoid danger, be sure to connect a grounding wire. If no groun
ing wire is connected and a leakage occurs, a fire or an electric
shock may be resulted.
3. Installation of developing cartridge
1) Open the manual paper feed tray.
2) Lift the knob and slide the side cover gently.
3) Open the front cover.
• Hold the both edge gently and open the front cover.
4) Remove the screw from the upper section of the insertion port of
the developer cartridge.
2. Removal of protective material and
fixing screw
1) Remove all tapes and protective material.
• Remove all tapes, then open the document cover and remove
the protective material of sheet shape
2) Remove the fixing screw.
• Use a coin to remove the fixing screw.
• The fixing screw is required when transporting the machine.
Keep it in the tray. (Refer to the later description.)
5) Shake a new developer cartridge a few times as shown.
• Shake it horizontally as shown with the arrow.
5 – 1
AR-161
6) Remove the pawls (3 positions) of the protective cover at therear
side.
7) Remove the protective cover.
• Pull the cover in the arrow direction to remove.
8) Insert the developer cartridge.
• Gently insert the developer cartridge along the guide until it
locks.
4. Removal and storage of fixing screw
1) Lift the knob and gently pull out the tray.
2) Hold the paper pressure plate and turn the fixing screw in the
arrow direction.
3) Store the fixing pin and the fixing screw in the tray.
• Store the fixing screw which was removed in the above proce-
dure 2 and the fixing screw which was removed in procedure 2
of 2.
• Removal of protective material and fixing screw in the storage
place in the tray.
9) Fix the developer cartridge with the fixing screw which is packed
together with the machine.
10) Close the front cover A, then close the side cover B.
• When closing the front cover, gently press the both sides.
• When closing the side cover, hold the knob.
• When closing the covers, be sure to close the front cover first,
then close the side cover. If closed in a wrong sequence, the
covers may be broken.
B
Pressure
plate
lock
Screw
A
5 – 2
Front guide
Left guide
AR-161
5. Changing the copy paper size in the tray
1) Gently lift and pull out the paper tray until it stops.
2) Push the pressure plate down until it locks in place.
3) Squeeze the lock lever of the front guide and slide the front guide
to match the width of the paper.
4) Move the left guide to the appropriate slot as marked on the tray.
• When using 11" ×17" copy paper, store the left guide in the slot
at the left front of the paper tray.
10) Use the ORIGINAL SIZE ENTER key to select the paper size
which is set.
• Each time the ORIGINAL SIZE ENTER key is pressed, a
paper size will be indicated with a blinking paper size indicator.
11) Press the START key and then the PAPER SIZE ENTER key.
• To change the paper size setting of another tray, repeat steps
9 to 10 after pressing the START key.
5) Load copy paper into the tray.
6) Place the paper size plate in the front of the paper tray.
• The paper size indication which shows through the slot on the
front of the copier should match the selected paper size.
7) Push the paper tray firmly back into the copier.
8) To set the selected paper size, press and hold down the PAPER
SIZE ENTER key. The selected paper feed location indicator and
the corresponding paper size (which has been set) indicator will
blink. All other indicators will go out.
• For paper size setting, ensure that the COPY mode has been
selected. However, if printer or facsimile output is being performed, paper size setting cannot be made even in the COPY
mode.
9) Use the TRAY SELECT key to select the paper tray of which the
paper size has been changed.
• Each time the TRAY SELECT key is pressed, a paper tray is
indicated with a blinking paper feed location indicator. If an
optional paper feed unit is not installed, this operation is not
needed.
5 – 3
AR-161
[6] OPERATIONAL DESCRIPTIONS
1. Outline of operation
The outline of operation is described referring to the basic configuration.
(Basic configuration)
Operation
section
Printer section
Scanner section
MCU (Main control/image process section)
LSU (Laser unit)
Laser diode, Polygon mirror lens
Laser beam
Process section
Cassette paper
feed section
Paper exit
CCD
Manual paper
feed section
Fusing section
Paper transport section
G. Fusing: Fusing section
• Heat and a pressure are applied to the toner image on the copy
paper to fuse the image on the paper.
2. Scanner section
A. Scan process
The scanner has sensors that are arranged in a line. These sensors
scan a certain area of a document at a time and deliver outputs
sequentially. When the line is finished, the next line is scanned, and
this procedure is repeated. The figure below shows the case where
an image which is scanned is shown with solid lines.
The direction of this line is called main scanning direction, and the
scanning direction sub scanning direction. In the figure above, one
line is divided into 5 sections. Actually, however, one line is divided
into thousands of sections. For scanning, the light receiving element
called CCD is used.
Sub scanning direction
Sensor scanning area
Main
scanning
direction
Outline of copy operation
A. Setting conditions: Operation panel
• Set copy conditions such as the copy quantity and the copy den-
sity with the operation section, and press the START key. The
information on copy conditions is sent to the MCU.
B. Image scanning: Scanner section
• When the START key is pressed, the scanner section starts scan-
ning of images.The light from the copy lamp is reflected by the
document and passed through the lens to the CCD.
C. Photo signal/Electric signal conversion:
Scanner section
• The image is converted into electrical signals by the CCD circuit
and passed to the MCU.
D. Image process: MCU
• The document image signal sent from the CCD circuit is processed
under the revised conditions and sent to the LSU (laser unit) as
print data.
E. Electric signal/Photo signal (laser beam)
conversion: LSU
• The LSU emits laser beams according to the print data. (Electrical
signals are converted into photo signals.)
• The laser beams are radiated through the polygon mirror and
various lenses to the OPC drum.
F. Printing: Process section
• Electrostatic latent images are formed on the OPC drum according
to the laser beams, and the latent images are developed to be
visible images (toner images).
• Meanwhile the paper is fed to the image transfer section in
synchronization with the image lead edge.
• The toner image is transferred on the paper.
1
2
3
4
5
5432
1
To MCU PWB
The basic resolution indicates the scanner capacity. The basic resolution is expressed in dpi (dot/inch) which shows the number of light
emitting elements per inch on the document.
The basic resolution of this machine is 400dpi.
In the sub scanning direction, at the same time, the motor that drives
the optical system is controlled to scan the image at the basic resolution.
6 – 1
AR-161
B. Basic structure of scanner section
1Copy lamp (Xenon lamp)Generate photo energy to scan documents.
2Reflector (Converging plate)Collects light emitted from the copy lamp and radiate the document.
3No. 1 mirrorRefracts the reflection light from the document to No. 2 mirror.
4No. 2 mirrorRefracts the reflection light from No. 1 mirror.
5No. 3 mirrorRefracts the reflection light from No. 2 mirror.
6LensConverges reflected light from the document to form images on the CCD element.
7No. 2/3 mirror unitIncludes No. 2/3 mirror. Driven in synchronization with the copy lamp unit.
8Copy lamp unitIncludes the copy lamp, the reflector, and No. 1 mirror. Driven in synchronization with No. 2/3
mirror unit by the mirror motor.
9CCD PWBReflected light (image) formed on the CCD is converted into electrical signals (analog signals)
10Mirror motorDrives the copy lamp unit and No. 2/3 mirror unit according to the scanning speed.
11MHPS (Mirror home position sensor)Detects the home position of No. 2/3 mirror unit.
12Reference white plateReference white sheet for scanning documents. The reference line of magnification ratio
13OC glassGlass table to put a document on it.
The light from the light source (Xenon lamp) is reflected by a document and passed through three mirrors and reduction lenses to the CCD element
(image sensor) where images are formed. This system is known as the reduction image sensor system. Photo energy on the CCD element is
converted into electrical signals (analog signals). (Photo-electric conversion). The output signals (analog signals) are converted into digital signals
(A/D conversion) and passed to the MCU (main control/image process section). The resolution at that time is 400dpi. The mirror unit in the scanner
section is driven by the mirror motor. The MHPS is provided to detect the home position of the copy lamp unit.
then into digital signals and sent to the MCU.
adjustment during SIM is also drawn.
3. Process section
A. Basic structure
1Main charger unitCharges the OPC drum.
2Cleaning bladeCollects waste toner on the OPC
drum.
3OPC drumImages are formed by laser beams
electrically, and toner is attached to
the image.
4Transfer unitToner on the OPC drum is transferred
to the print paper by the potential
difference.
5Resist rollerMakes synchronization between the
paper and the print image.
6MG rollerMagnetic brush is formed by
developer to put toner on the OPC
drum.
7(Laser beam)Forms images on the OPC drum.
6 – 2
AR-161
Operation cycle
High voltage power
Laser scanning unit
Paper exit roller
Paper exit
Main charger
Waste toner box
Laser beam
Cleaning blade
Charging
Heat roller
Fusing
Exposure
Cleaning
Developing
Developer
Separation
Transfer
Separation charger
Transfer
Synchronization
with drum
Transfer charger
Resist roller
High voltage power
High voltage power
High voltage
power
Developing unit
Toner hopper
B. Outline of print process
The printer section of this machine employs the laser print system
where print images are formed by the laser beams on the OPC drum.
A high voltage (corona) is applied from the main charger to the OPC
drum to charge the OPC drum.
Laser beams are radiated to the charged OPC drum to form electrical
images on the OPC drum. (Exposure)
(At that time, the print image on the OPC drum cannot be seen: latent
electrostatic image)
By the potential difference between the unexposed area and the
latent electrostatic images, toner ia attracted only to the images.(Developing)
(At that time, the print image formed by toner on the OPC drum can
be seen. Visible images)
The toner image on the OPC drum is transferred on the print paper
by the transfer corona (voltage).
After that, the print paper with the toner image on it is subject to heat
and pressure in the fusing section to fuse the image on the paper.
This machine employs the following organic photoconductor (OPC)
drum.
An OPC drum is used for the photoconductor.
(Structure of the OP C dru m layers)
A high voltage is applied to the main charger, and negative charges
are discharged to the OPC drum. A screen grid is provided between
the main charger and the OPC drum, and negative charges are
uniformly charged on the OPC drum surface.
Positive charges are attracted by the negative electrode on the OPC
drum surface and excited in the aluminum layer in the OPC drum.
DC5.5KV
(-525V/-400V)
6 – 3
AR-161
(2) Exposure
A Laser beam is generated from the semiconductor laser and controlled by the print pattern signal. The laser writes onto the OPC drum
surface through the polygon mirrors and lens. The resistance of the
OPC layer decreases for an area exposed by the laser beam (corresponding to the print pattern signal). The beam neutralizes the
negative charge. An electrostatic latent image is formed on the drum
surface.
Semiconductor laser
Exposure
(semiconductor laser)
OPC layer
Pigment
layer
Aluminum
layer
Drum surface charge
sfter the exposure
Non-image area Image area
OPC layer
Pigment
layer
Aluminum
layer
Non-image area
-600
Drum surface potential
-400
Developing bias
Image area
Residual potential (-50 to -100V)
0
ChargeExposureDevelopingTransfer
Toner at tract
potential
Time
Charge
Discharge
Toner is attracted over the shadowed area because of the developing
bias.
(4) Transfer
The visible image on the drum surface is transferred onto the print
paper by applying a positive charge from the transfer corona to the
backside of the print paper.
(3) Developing (DC bias)
A bias potential is applied to the MG roller in the two component
magnetic brush developing method, and the toner is charged negative through friction with the carrier. Non-image area of the drum
surface charged with negative potential repel the toner, whereas the
laser exposed portions where no negative charges exist, attract the
toner. As a result, a visible image appears on the drum surface.
: Carrier (Magnetized particle)
: Toner (Charge negative by friction)
(N) (S) : Pemanent magnet
(provided in three locations)
N
S
N
DC
-400v
MG roller
-8V
(5) Separation
Since the print paper is charged positively by the transfer corona, it is
discharged by the separation corona. The separation corona is connected to ground.
(6) Cleaning
Toner remaining on the drum is removed and collected by the cleaning blade. It is transported to the waste toner collecting section in the
cleaning unit by the waste toner transport roller.
6 – 4
AR-161
(7) Optical discharge (Semiconductor laser)
Before the drum rotation is stopped, the semiconductor laser is
radiated onto the drum to reduce the electrical resistance in the OPC
layer and eliminate residual charge, providing a uniform state to the
drum surface for the next page to be printed.
When the electrical resistance is reduced, positive charges on the
aluminum layer are moved and neutralized with negative charges on
the OPC layer.
Semiconductor laser
a. Charge by the Scorotron charger
<1> Function
The Scorotron charger functions to maintain the surface potential of
the drum even at all times which. It is used to control the surface
potential regardless of the charge characteristics of the photoconductor.
<2> Basic function
A screen grid is placed between the saw tooth and the photoconductor. A stable voltage is added to the screen grid to maintain the
corona current on the photoconductor. As the photoconductor is
charged by the saw tooth from the main corona unit, the surface
potential increases. This increases the current flowing through the
screen grid. When the photoconductor potential nears the grid potential, the current turns to flow to the grid so that the photoconductor
potential can be maintained at a stable level.
b. Process controlling
<1> Function
The print pattern signal is converted into an invisible image by the
semiconductor laser using negative to positive (reversible) developing
method. Therefore, if the developing bias is added before the drum is
charged, toner is attracted onto the drum. If the developing bias is not
added when the drum is charged, the carrier is attracted to the drum
because of the strong electrostatic force of the drum.
To avoid this, the process is controlled by adjusting the drum potential and the grid potential of the Scorotron charger.
<2> Basic function
Voltage added to the screen grid can be selected, high and low.
To make it easily understood, the figure below shows voltage transition at the developer unit.
STARTSTOP
0
Toner at tract
potential
2)
3)
1)
Low
4)
High
<3> Start
1) Because the grid potential is at a low level, the drum potential is at
about –400V. (Carrier may not be attracted though the carrier is
pulled towards the drum by the electrostatic force of –400V.)
2) Developing bias (–400V) is applied when the photoconductor
potential is switched from LOW to HIGH.
3) Once developing bias (–400V) is applied and the photo conductor
potential rises to HIGH, toner will not be attracted to the drum.
Print potentioal
Developing bias
Drum potential
Time
<4> Stop
The reverse sequence takes place.
c. Retaining developing bias at an abnormal occurrence
<1> Function
The developing bias will be lost if the power supply was removed
during print process. In this event, the drum potential slightly abates
and the carrier makes deposits on the drum because of strong static
power. To prevent this, the machine incorporates a function to retain
the developing bias for a certain period and decrease the voltage
gradually against possible power loss.
<2> Basic function
Normally, the developing bias voltage is retained for a certain time
before the drum comes to a complete stop if the machine should stop
before completing the normal print cycle. The developing bias can be
added before resuming the operation after an abnormal interruption.
Therefore, carrier will not make a deposit on the drum surface.
4. Laser unit
The image data sent from the MCU (image process circuit) is sent to
the LSU (laser uni t), where it is converted in to laser beams.
A. Basic structure
The LSU unit is the writing section of the digital optical system.
The semiconductor laser is used as the light source, and images are
formed on the OPC drum by the polygon mirror and fθ lens, etc.
The laser beams are passed through the collimator lens, the cylindrical lens, the polygon mirror, the fθ lens, and the mirror to form images
on the OPC drum in the main scanning direction. The laser emitting
PWB is provided with the APC (auto power control) in order to
eliminate fluctuations in the laser power. The BD PWB works for
measurement of the laser writing start point.
6Laser emitting PWBEmits laser beams according to the
Reflects laser beams at a constant
rpm
Detects start timing of laser
scanning
on the drum.
Makes the laser scanning speeds
at both ends of the drum same as
each other. (Refer to the figure
below.)
image data.
6 – 5
AR-161
Makes the laser scanning speeds at both ends of the drum same as
each other.
a ≠ b ≠ c
ab
c
d = e = f
de
f
5. Paper feed section
A. Basic structure
B. Laser beam path
1No. 1 cassette paper feed roller (Semi-circular roller)Picks up paper from No. 1 cassette.
2Main motorDrives the process section and the paper transport section.
3No. 1 cassette paper feed solenoidRotates and controls No. 1 cassette paper feed roller.
4No. 1 cassette paper feed roller clutchDrives No. 1 cassette paper feed roller.
5Manual paper feed rollerPicks up paper from the manual paper feed tray.
6Manual paper transport rollerTransport paper which was picked up from the manual paper feed tray.
7Manual paper feed roller clutchDrives the manual paper feed roller.
8Manual paper transport roller clutchDrives the manual paper transport roller.
9Manual paper feed roller solenoidRotates and controls the manual paper feed roller.
10Manual paper transport roller solenoidRotates and controls the manual paper transport roller.
11Resist rollerTakes synchronization between the paper lead edge and the image lead edge.
12Resist roller clutchDrives the resist roller.
13Resist roller solenoidRotates and controls the resist roller.
B. Brief descriptions of operations
This machine allows two ways of paper feed system: cassette paper
feed and manual paper feed.
The cassette of universal type is employed to hold 250 sheets. The
front loading system allows to attach or detach the cassette from the
front of the machine.
Paper size can be selected by the user.
Paper size detection is set by the software. (User setting is allowed.)
By installing the optional 1-step paper feed unit or the multi-step
paper feed unit, the capacity of paper can be increased.
(1) Cassette paper feed operation
Select the cassette and press the START button, and the paper feed
roller solenoid will be turned on and the paper feed clutch will be
released.
The drive power of the main motor is transmitted through the paper
feed roller clutch to the paper feed roller, rotating the paper feed roller
and feeding paper.
6 – 6
AR-161
(2) Manual paper feed tray operation
Select the manual paper feed tray and press the START button, and
the manual paper feed roller will be turned on to bring the paper feed
roller in contact with paper and lift the shutter simultaneously.
The drive power of the main motor is transmitted through the manual
paper feed roller clutch to the manual paper feed roller, rotating the
manual paper feed roller and feeding paper.
(3) Resist roller
In order to make synchronization between the paper lead edge fed
from the paper feed port and the image lead edge, the roller is kept
stationary for a certain time after the paper reaches at the roller to
warp the paper a little.
When the paper is warped to a certain level, the resist roller solenoid
is turned on to release the resist roller clutch.
The drive power of the main motor is transmitted through the resist
roller clutch to the resist roller, rotating the resist roller and feeding
paper.
6. Fusing section
A. Basic composition
B. Heat roller
A pressure roller is used for the heat roller and a silicone rubber roller
is used for the lower heat roller for better toner fusing performance
and paper separation.
C. Separator pawl
Four separator pawls are used on the upper heat roller. The
separator pawls are teflon coated to reduce friction with the roller and
prevent a smear on the paper caused by the separator pawl.
D. Thermal control
1) The heater lamp, thermistor, main PWB, DC power supply PWB,
and triac within the power supply unit are used to control the
temperature in the fuser unit.To prevent against abnormally high
temperature in the fuser unit, a thermostat is used for safety purposes.
Heated by the
heater lamp.
(950W )
Safety device
(thermal breaker, thermal
fuse)
The surface temperature
of the upper heat roller
is sensed by the thermistor.
(Top view)
1Before-fusing
paper guide
2Upper heat rollerApplies heat and pressure to the
3ThermistorDetects the surface temperature of
4ThermostatStops power supply to the heat roller
5Separation pawlSeparates the print paper from the
6POD1Detects that the paper has been
7Heater lampHeats the heat roller.
8Lower heat rollerApplies a pressure to the paper
Guides the paper transported from
the process section to the fusing unit.
paper to fuse.
the upper heat roller.
in case of an abnormally high
temperature of the heat roller.
upper heat roller.
transported from the fusing section.
together with the upper heat roller.
Level of the thermistor is
Triac (in the
power supply unit)
2) The surface temperature of the upper heat roller is set to 180˚C ~
195˚C. The surface temperature during the power save mode is
set to 100˚C.
3) The self-check function comes active when one of the following
malfunctions occurs, and an "H" is displayed on the copy quantity
display.
Fusing temperature error value
H4 (Low temperature error)
controlled by the main PWB.
With the signal from the
main PWB, the triac is
controlled on and off.
(power supply PWB )
• During machine operation
The case where the fusing temperature (thermistor output
value) does not reach 155˚C within 55 sec from lighting of the
heater lamp. (If the toner motor rotates for 10 sec or more
continuously when starting the machine, the case where the
fusing temperature does not reach 155˚C within 60 sec.)
• During printing
When the fusing temperature (thermistor output value) falls
below 145˚C.
H3 (High temperature error)
Fusing temperature (thermistor output value) of about 220 to
240˚C (varies depending on the resistance.)
E. Fusing resistor
(1) Fusing resistor
Since the upper heat roller is conductive when copy paper is highly
moistured and the distance between the transfer unit and the fusing
unit is short, the transfer current leaks through the copy paper, the
upper heat roller and the discharging brush.
To prevent against this, a resistor of 150MOhm is provided between
the frame and the discharge brush to minimize leak current and
improve transfer efficiency.
AProcess section(1)Developing doctor gap adjustmentDeveloping doctor gap adjustment
(2)MG roller main pole position adjustmentMG roller main pole position adjustment
(3)Developing bias voltage output adjustmentSIM 8-1
(4)Main charger voltage output adjustmentSIM 8-2/SIM 8-3
(5)Transfer charger current adjustmentSIM 8-6
BMechanism section(1)Image position adjustmentSIM 50-1/SIM 50-10
(2)Main scanning direction (FR direction)
distortion balance adjustment
(3)Main scanning direction (FR direction)
distortion adjustment
(4)Sub scanning direction (scanning direction)
distortion adjustment
(5)Main scanning direction (FR direction)
magnification ratio adjustment
(6)Sub scanning direction (scanning direction)
magnification ratio adjustment
(7)Off center adjustmentaOC mode (SIM 50-13)
(8)Document size detection sensorSIM 41-2
CImage density adjustment(1)Copy modeSIM 46-1
No. 2/3 mirror base unit installing position
adjustment
Copy lamp unit installing position adjustment
F rail height adjustment
Winding pulley position adjustment
SIM 48-1
aOC mode in copying (SIM 48-2)
bSPF mode in copying (SIM 48-5)
cOC mode in FAX (SIM 48-6)
dSPF mode in FAX (SIM 48-7)
bSPF mode (SIM 50-16)
AR-161
2. Copier adjustment
A. Process section
(1) Developing doctor gap adjustment
1) Loosen the developing doctor fixing screw A.
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
and 130mm from the both ends of the developing doctor as
shown.
3) Push the developing doctor in the arrow direction, and tighten the
developing doctor fixing screw. (Perform the same procedure for
the front and the rear frames.)
4) Check the clearance of the developing doctor. If it is within the
specified range, then fix the doctor fixing screw with screw lock.
* When inserting a thickness gauge, be careful not to scratch the
developing doctor and the MG roller.
<Adjustment specification>
Developing doctor gap
Both ends (20mm from the both ends): 1.5±0.1mm
C (Center)(150mm from the both ends): 1.5±0.1mm
(2) MG roller main pole position adjustment
1) Remove and separate the waste toner box and put the developing
unit on a flat surface.
2) Tie a string to a needle or a pin.
3) Hold the string and bring the needle close to the MG roller
horizontally. (Do not use paper clip, which is too heavy to make a
correct adjustment.) (Put the developing unit horizontally for this
adjustment.)
4) Do not bring the needle into contact with the MG roller, but bring it
to a position 2 or 3mm apart from the MG roller. Mark the point on
the MG roller which is on the extension line from the needle tip.
7 – 1
AR-161
5) Measure the distance from the marking position to the top of the
doctor plate of the developing unit to insure that it is 18mm.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjustment plate in the arrow direction to adjust.
<Adjustment specification>
ModeSpecificationSIM
Developing bias voltageDC-400±8VSIM 8-1VR31
(4) Grid bias voltage adjustment (SIM 8-2, SIM 8-3)
Note: • Use a digital multi-meter with an internal resistance of
10MΩ or more.
• First adjust the grid LOW output, then adjust the grid HIGH
voltage.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the grid bias voltage
output check pin.
3) Execute SIM 8-3. (The grid bias voltage is outputted in the grid
bias LOW output mode for 30 sec.)
4) Adjust the adjustment volume VR52 so that the output voltage is
within the specified range shown below.
5) Execute SIM 8-2. (The grid bias voltage is outputted in the grid
bias HIGH output mode for 30 sec.)
6) Adjust the adjustment volume VR51 so that the output voltage is
within the specified range shown below.
(3) Developing bias voltage adjustment (SIM 8-1)
Note: • Use a digital multi-meter with an internal resistance of
10MΩ or more.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the developing bias
voltage output check pin.
3) Execute SIM 8-1. (The developing bias voltage is outputted for 30
sec.)
4) Adjust the adjustment volume VR31 so that the output voltage is
within the specified range shown below.
5) Set the laser radiation timing (image loss amount). Measure R in
the figure below.
Laser radiation timing = R (mm) × 10
6) Set the lead edge void.
Measure H in the figure below.
Lead edge void = H(mm) × 10
7) Enter the set value and press the start key.
The correction value is stored and a copy is made.
(Example)
Lead edge void H
Image loss R
5mm
10mm
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Laser radiation
timing
1 ~ 4mmSIM
45-1
1 step:
0.1mm shift
1 ~ 99
Lead edge void
adjustment
b. Rear edge void adjustment
1) Set a scale as shown in the figure below.
A4(8.5" x 11")
Paper rear edge
2) Set the document size to A4, and make two copies at 100%.
3) Check the second copy. If necessary, perform the following adjustment procedure.
* The first copy does not show the void. Be sure to check the
second copy.
Void amount (Standard value: 0
4mm)
4) Execute SIM 50-1 and set the density mode to AE + TEXT +
PHOTO (Rear edge void).
The currently set adjustment value is displayed.
5) Enter the set value and press the start key.
The correction value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Rear edge void4mm or lessSIM
50-1
1 step:
0.1mm shift
1-99
c. Paper off center adjustment
1) Execute SIM 50-1 and set the density mode of Manual (TEXT)
(Left edge void) to 0.
2) Set a test chart (UKOG-0089SCZZ) on the document table.
3) Select a paper feed port and make a copy.
Compare the copy and the test chart. If necessary, perform the
following adjustment procedure.
4) Execute SIM 50-10.
After completion of warmup, shading is performed and the cur-
rently set off center adjustment value of each paper feed port is
displayed.
5) Enter the set value and press the start key.
The correction value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Paper
off center
Single:
Center ±2.0mm
Duplex:
Center ±2.5mm
SIM
50-10
Add 1: 0.1mm
shift to R side.
Reduce 1:
0.1mm shift to
L side.
1 ~ 99
d. Left edge void area adjustment
Note: Before performing this adjustment, be sure to check that the
paepr off center adjustment (SIM 50-10) is completed.
1) Set a test chart (UKOG-0089SCZZ) on the document table.
2) Select a paper feed port and make two copies.
Compare the second copy and the test chart. If necessary, per-
form the following adjustment procedure.
* The first copy does not show the void. Be sure to check the
second copy.
3) Execute SIM 50-1 and set the density mode to Manual (TEXT)
(Left edge void).
The currently set adjustment value is displayed.
(When the off center adjustment previously described is performed, "0" is displayed.)
4) Enter the set value and press the start key.
The correction value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Left edge void1 ~ 4mmSIM
50-1
1 step:
0.1mm shift
1 ~ 99
* When the left edge void is set with the paper off center adjusted,
the both edge void is automatically adjusted.
Scale image
Paper rear edge
7 – 3
AR-161
(2) Main scanning direction (FR directional distortion
balance adjustment)
1) Remove the OC glass and the right cabinet.
2) Loosen the copy lamp unit wire fixing screw.
3) Manually turn the mirror base drive pulley and bring No. 2/3 mirror
base unit into contact with the positioning plate.
At that time, if the front frame side and the rear frame side of No.
2/3 mirror base unit are brought into contact with the positioning
plate at the same time, the mirror base unit parallelism is proper.
If one of them is in contact with the positioning plate, perform the
adjustment of 4).
4) Loosen the set screw of the scanner drive pulley which is not in
contact with No. 2/3 mirror base unit positioning plate.
5) Without moving the scanner drive pulley shaft, manually turn the
scanner drive pulley until the positioning plate is brought into contact with No. 2/3 mirror base unit, then fix the scanner drive pulley.
7 – 4
AR-161
6) Put No. 2/3 mirror base unit on the positioning plate again, push
the projections on the front frame side and the rear frame side of
the copy lamp unit to the corner frame, and tighten the wire fixing
screw.
2) Open the original cover and make a normal (100%) copy.
3) Measure the width of the black background at the lead edge and
at the rear edge.
If the width (La) of the black background at the lead edge is equal
that (Lb) at the rear edge, there is no need to execute the following procedures of 4) ~ 7).
4) Loosen the mirror base drive pulley fixing screw on the front frame
side or on the rear frame side.
• When La < Lb
Turn the mirror base drive pulley on the rear frame side in the
arrow direction B. (Do not move the mirror base drive pulley
shaft.)
• When La > Lb
Turn the mirror base drive pulley on the front frame side in the
arrow direction A. (Do not move the mirror base drive pulley
shaft.)
(3) Main scanning direction (FR direction) distortion
adjustment
This adjustment must be performed in the following cases:
• When the mirror base drive wire is replaced.
• When the lamp unit, or No. 2/3 mirror holder is replaced.
• When a copy as shown is made.
La
1) Set A3 (11" x 17") white paper on the original table as shown
below.
Lb
A
B
5) Tighten the mirror base drive pulley fixing screw.
<Adjustment specification>
La = Lb
(4) Sub scanning direction (scanning direction)
distortion adjustment
When there is no skew copy in the mirror base scanning direction and
there is no horizontal error (right angle to the scanning direction), the
adjustment can be made by adjusting the No. 2/3 mirror base unit rail
height.
Before performing this adjustment, be sure to perform the horizontal
image distortion adjustment in the laser scanner section.
This adjustment must be performed in the following cases:
• When the mirror base wire is replaced.
• When the copy lamp unit or No. 2/3 mirror unit is replaced.
• When the mirror unit rail is replaced or moved.
• When a following copy is made.
7 – 5
AR-161
1) Making of a test sheet
Make test sheet by drawing parallel lines at 10mm from the both
ends of A3 (11" x 17") white paper as shown below. (These lines
must be correctly parallel to each other.)
10mm
10mm
2) Make a normal (100%) copy of the test sheet on A3 (11" x 17")
paper. (Fit the paper edge with the glass holding plate edge.)
3) Measure the distances (La, Lb, Lc, Ld) at the four corners as
shown below.
La
10mm
10mm
Lc
• When La > Lb
Shift the mirror base B rail upward by the half of the difference
of La – Lb.
• When La < Lb
Shift the mirror base B rail downward by the half of the
difference of Lb – La.
Example: When La = 12mm and Lb = 9mm, shift the mirror
base B rail upward by 1.5mm.
• When Lc > Ld
Shift the mirror base B rail downward by the half of the
difference of Lc – Ld.
• When Lc < Ld
Shift the mirror base B rail downward by the half of the
difference of Ld – Lc.
* When moving the mirror base rail, hold the mirror base rail with
your hand.
<Adjustment specification>
La = Lb, Lc = Ld
5) After completion of adjustment, manually turn the mirror base
drive pulley, scan the mirror base A and mirror base B fully, and
check that the mirror bases are not in contact with each other.
* If the mirror base rail is moved extremely, the mirror base may be
in contact with the frame or the original glass. Be careful to avoid
this.
(5) Main scanning direction (FR direction) magnification
ratio adjustment (SIM 48-1)
Note: Before performing this adjustment, be sure to check that the
CCD unit is properly installed.
1) Put a scale on the original table as shown below.
LbLd
When La = Lb and Lc = Ld, no need to perform the procedures 4)
and 5).
4) Move the mirror base B rail position up and down (in the arrow
direction) to adjust.
2) Execute SIM 48-1.
3) After warmup, shading is performed and the current set value of
the main scanning direction magnification ratio is displayed on the
display section in 2 digits.
4) Select the mode and press the start key again.
5) Auto correction mode (AE lamp ON)
The mirror unit moves to the shading position, and the reference
width of the reference white plate is scanned, and the correction
value is automatically calculated from that scanned value.
The correction value is displayed and a copy is made.
6) Compare the scale image and the actual scale.
If a fine adjustment is required, switch to the manual correction
mode with the magnification ratio display key and perform fine
adjustment.
7) Manual correction mode (TEXT lamp ON)
Enter the set value and press the start key.
The set value is stored and a copy is made.
7 – 6
AR-161
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Main scanning
direction
magnification
ratio
At normal:
±1.0%
SIM
48-1
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
• Error in the auto correction mode
DisplayContentMajor cause
Copy
quantity
display "– –"
The correction
value calculated is
over 5%.
• Improper position of
reference width line of
the reference white plate
• Improper installation of
CCD unit
Paper jam
lamp ON
(6) Sub scanning direction (scanning direction)
magnification ratio adjustment (SIM 48-2, SIM 48-5)
a. OC mode in copying
Note: • Before performing this adjustment, be sure to check that the
1) Put a scale on the original table as shown below, and make a
normal (100%) copy.
Reference line
scanning error
CCD unit is properly installed.
• Defective CCD
• No reference white plate
1) Put a scale on the original table as shown below, and make a
normal (100%) copy to make a test chart.
Note: Since the printed copy is used as a test chart, put the scale
in parallel with the edge lines.
2) Set the test chart on the SPF and make a normal (100%) copy.
3) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures.
4) Execute SIM 48-5.
5) After warmup, shading is performed and the current set value of
the sub scanning direction magnification ratio is displayed on the
display section in 2 digits.
6) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Sub scanning
direction
magnification
ratio
(SPF mode)
Normal
±1.0%
SIM
48-5
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
2) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures.
3) Execute SIM 48-2.
4) After warmup, shading is performed and the current set value of
the sub scanning direction magnification ratio is displayed on the
display section in 2 digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Sub scanning
direction
magnification
ratio
(OC mode)
b. SPF mode in copying
Note: • Before performing this adjustment, be sure to check that the
CCD unit is properly installed.
Normal
±1.0%
SIM
48-2
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
• Before performing this adjustment, the OC mode adjust-
ment in copying must be completed.
(7) Off center adjustment (SIM 50-13, SIM 50-16)
a. OC mode
Note: • Before performing this adjustment, be sure to check that the
paper off center is properly adjusted. (SIM 50-10)
1) Make a test chart as shown below and set it so that its center line
is fit with the original guide center mark.
* To make a test chart, draw a line on A3 or 11" x 17" paper at
the center in the paper transport direction.
2) Make a normal copy from the manual paper feed tray, and compare the copy and the test chart.
If necessary, perform the following adjustment procedures.
3) Execute SIM 50-13.
4) After warmup, shading is performed and the current set value of
the off center adjustment is displayed on the display section in 2
digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
7 – 7
AR-161
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Original
off center
mode
(OC mode)
Single:
Center ± 2.0mm
Duplex:
Center ±2.5mm
SIM
50-18
Add 1:
0.1mm shift to
R side
Reduce 1:
0.1mm shift to
1 ~ 99
L side
b. SPF mode
Note: • Before performing this adjustment, be sure to check that the
paper off center is properly adjusted.
1) Make a test chart for the center position adjustment and set it on
the SPF.
<Adjustment specification>
Draw a line on a paper in the scanning direction.
2) Make a normal copy from the manual paper feed tray, and compare the copy and the original test chart.
If necessary, perform the following adjustment procedures.
3) Execute SIM 50-16.
4) After warmup, shading is performed and the current set value of
the off center adjustment at each paper feed port is displayed on
the display section in 2 digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
ModeSpecificationSIMSet valueSet range
Original
off center
mode
(SPF
mode)
Single:
Center ± 3.0mm
Duplex:
Center ±3.5mm
SIM
50-16
Add 1:
0.1mm shift to
R side
Reduce 1:
0.1mm shift to
1 ~ 99
L side
(8) Original sensor adjustment (SIM 43-3)
1) Execute SIM 41-2.
2) Set A3 (11" x 17") paper on the OC table.
3) Press the start key again.
4) The sensor level of the original sensor is automatically checked
and the value with an original - 40 is made as the threshold value
for scanning. (Automatic setting)
5) Execute SIM 43-3.
6) The light reception level of the original sensor is displayed.
The first digit of the copy quantity display shows "A": Light recep-
tion level display
The first digit of the copy quantity display shows "b": Original
judgement level display
(The mode selection is made with the magnification ratio display
key.)
7) By changing the paper set on the original table, the original size
LED sensed by the sensor is lighted.
C. Image density adjustment
(1) Copy mode (SIM 46-1)
1) Set a test chart (UKOG-0162FCZZ) on the OC table as shown
below.
2) Put several sheets of A3 or 11" x 17" white paper on the test
chart.
3) Execute SIM 46-1.
4) After warmup, shading is performed and the current set value of
the density level is displayed on the display section in 2 digits.
For mode selection, use the density select key.
5) Change the set value with the 10-key to adjust the copy image
density.
6) Make a copy and check that the specification below is satisfied.
<Adjustment specification>
Density
AutoAuto—"3" is slightly
Manual Manual3"3" is slightly
PhotoPhoto3"3" is slightly
Toner
save
mode
Display
lamp
Manual/
Photo
Exposure
level
copied.
copied.
copied.
3"3" is slightly
copied.
Sharp Gray
Chart output
Set value
The greater the
set value is, the
greater the
density is.
The smaller the
set value is, the
smaller the
density is.
Set
range
1 ~ 99
7 – 8
[8] SIMULATION
1. Entering the simulation mode
Perform the following procedure to enter the simulation mode.
Clear key → Interruption key → Shift key → Interruption key → Start
key → Sub code → Start key
2. Cancelling the simulation mode
When the all clear key is pressed, the simulation mode is cancelled.
When the interruption key is pressed, the process is interrupted and
the screen returns to the sub code entering display.
3. List of simulations
Main
Sub
code
code
11Mirror unit operation check
2Optical system sensor operation check
21SPF aging
2SPF sensor operation check
3SPF motor forward rotation operation check
4SPF motor reverse rotation operation check
8SPF paper feed solenoid operation check
421Developer counter clear
431Fusing temperature setting
461Copy density level adjustment
2FAX density level adjustment
481Main scanning (front/rear) direction magnification
ratio adjustment(Copy/FAX/OC-SPF common)
2OC mode sub scanning direction magnification
ratio adjustment in copying
5SPF mode sub scanning direction magnification
ratio adjustment in copying
6OC mode sub scanning direction magnification
ratio adjustment in FAX
7SPF mode sub scanning direction magnification
ratio adjustment in FAX
501Copy image lead edge position adjustment
10Paper off center adjustment
13OC mode document off center adjustment
16SPF mode document off center adjustment
512Resist amount adjustment
631Shading data check
Contents
8 – 1
AR-161
4. Contents of simulations
Main
code
Sub
code
11Mirror unit operation
check
2Optical system sensor
operation check
21SPF agingUsed to perform SPF document transport.
2SPF sensor operation
check
ContentsDetails of operation
Used to execute scanning at the speed corresponding to the set magnification ratio.
Key operationDisplay
Changing the magnification ratio:
Fixed magnification ratio key
Used to check MHPS (Mirror home position sensor) ON/OFF state with
the LED on the operation panel.
Display
<Lighting when the sensor is ON>
MHPS: Paper empty LED
The paper size is not detected. (Excluding postcards, extra large sheet of
1m or greater.)
With SPF installed: Single transport operation
With RSPF installed: Duplex transport operation
Used to check sensors in SPF with the LED on the operation panel.
Display
<Lighting at sensor ON>
PW1: JAM LED
PW2: Paper empty LED
PW3: Machine position JAM LED
PW4: SPF JAM LED
PL1: Manual paper feed tray select LED
PL2: Second cassette position JAM LED
P-IN: SPF select LED
P-OUT: Main cassette select LED
Set magnification ratio:
Fixed magnification ratio LED
Initial
value
100%50 ~ 200%
Set range
3SPF motor forward
rotation operation check
4SPF motor reverse
rotation operation check
8SPF paper feed solenoid
operation check
9SPF reverse solenoid
operation check
10SPF paper exit gate
solenoid operation check
11SPF PS release solenoid
operation check
32Shifter job separator
sensor operation check
3Shifter operation checkUsed to drive the shifter motor at the speed of printing of A4 (8-1/2 ×
Used to rotate the SPF motor forward at the speed corresponding to the
currently set magnification ratio for 10 sec.
Key operationDisplay
Magnification ratio change:
Fixed magnification ratio key
Used to rotate the SPF motor reversely for 10 sec.
Used to drive the SPF paper feed solenoid (PSOL) at the cycle of
500msec ON and 500msec OFF 20 times.
Used to drive the SPF reverse solenoid (RSOL) at the cycle of 500msec
ON and 500msec OFF 20 times.
Used to drive the SPF paper exit gate solenoid (GSOL) at the cycle of
500msec ON and 500msec OFF 20 times.
Used to drive the SPF PS release solenoid at the cycle of 500msec ON
and 500msec OFF 20 times.
Used to check the sensors state in the shifter job separator with the LED
on the operation panel.
<Lighting at sensor ON>
Shifter HP sensor: Machine position JAM LED
Job separator HP sensor: SPF JAM LED
Paper exit full sensor: Second cassette position JAM LED
11"). Pressing the start key or the clear all key moves the shifter to the
home position.
The shifter is moved to the home position: Start key or clear all key
Set magnification ratio:
Fixed magnification ratio LED
Display
Key operation
100%50 ~ 200%
8 – 2
AR-161
Main
code
Sub
code
34Job separator operation
check
10Job separator home
position check
51Operation panel display
check
2Heater lamp lighting
check, cooling fan motor
operation check
3Copy lamp lighting check Used to light the copy lamp for 5 sec. At that time, the copy lamp
61Paper feed solenoid
operation check
ContentsDetails of operation
Used to drive the job separator one way. Pressing the clear key stops
the job separator at the home position.
Key operation
Stops at the home position: Clear all key
Used to drive the job separator to the home position. Then it is shifted by
the specified number of steps for check, and the position is made as the
origin. It is shifted from the origin by the specified number of steps.
Used to light all LED’s on the operation panel for 5 sec.
Used to turn ON the heater lamp for 500msec and OFF for 500msec 5
times. At the same time, the cooling fan is rotated at a high speed. After
checking the heater lamp operation, the cooling fan motor rotate at a low
speed.
brightness can be changed with the density adjustment key. When this
simulation is canceled, the copy lamp brightness if automatically adjusted.
Key operation
Copy lamp brightness: Density adjustment key
When the start key is pressed, the selected paper feed solenoid is driven
at the cycle of 500msec ON and 500msec OFF 20 times.
Key operationDisplay
Solenoid selection:
Tray select button
<Lighting at solenoid selection>
Main cassette paper feed solenoid:
Main cassette select LED
Multi manual paper feed solenoid:
Manual paper feed select LED
No. 2 cassette paper feed solenoid:
No. 2 cassette select LED
No. 3 cassette paper feed solenoid:
No. 3 cassette select LED
No. 4 cassette paper feed solenoid:
No. 4 cassette select LED
Resist roller solenoid:
Machine position JAM LED
No. 2 cassette transport solenoid:
No. 2 cassette position JAM LED
No. 3 cassette transport solenoid:
No. 3 cassette position JAM LED
No. 4 cassette transport solenoid:
No. 4 cassette position JAM LED
Paper out 1 solenoid: Paper empty LED
Paper out 2 solenoid: SPF JAM LED
Paper out 3 solenoid: SPF select LED
Initial
value
Set range
10Main cassette
semi-circular roller drive
71Aging with JAM with
warmup time display
Used to rotate the semi-circular roller of the main cassette one turn to
face it downward.
Used to start warmup and count and display the warmup time every
second. After completion of warmup, count up is terminated and the
ready lamp is lighted. When the clear key is pressed and the copy
quantity is entered and the start key is pressed, copying is made to make
the set quantity of copies. At that time, the paper size does not matter.
Key operation
Copy quantity setting: Numeric keys
8 – 3
1 ~ 9
AR-161
Main
code
Sub
code
72Aging without JAM with
warmup time display
4Warmup savingUsed to bring the machine to the ready state without warmup.
6Intermittent aging (with
paper)
7Intermittent aging (without
paper)
ContentsDetails of operation
Used to start warmup and count and display the warmup time every
second. After completion of warmup, count up is terminated and the
ready lamp is lighted. When the clear key is pressed and the copy
quantity is entered and the start key is pressed, copying is made to make
the set quantity of copies. At that time, the paper size does not matter.
Key operation
Copy quantity setting: Numeric keys
After completion of warmup, counting is stopped and the ready lamp is
lighted. When the copy quantity is entered and the start key is pressed,
copying is made to make the set quantity of copies. After 3 sec standby,
copying is made again to make the set quantity of copies. After that this
operation is repeated. The paper size does not matter.
Key operation
Copy quantity setting: Numeric keys
After completion of warmup, counting is stopped and the ready lamp is
lighted. When the copy quantity is entered and the start key is pressed,
copying is made to make the set quantity of copies. After 3 sec standby,
copying is made again to make the set quantity of copies. After that this
operation is repeated. The paper size does not matter.
Key operation
Copy quantity setting: Numeric keys
Initial
value
Set range
1 ~ 99
1 ~ 99
1 ~ 99
8Warmup time displayUsed to count and display the warmup time from 0 at every second.
81Developing bias voltage
output check
2Main charger voltage
output check (Grid bias
high mode)
3Main charger voltage
output check (Grid bias
low mode)
6Transfer charger voltage
check
91Duplex motor forward
rotation operation check
2Duplex motor reverse
rotation operation check
4Duplex motor rotation
speed adjustment
5Duplex motor switchback
time adjustment
Used to output the developing bias for 30 sec. For the adjustment procedure of the developing bias, refer to the previous descriptions.
Used to output the main charger grid bias voltage at the high mode for
30 sec. For the adjustment procedure of the main charger grid bias
voltage, refer to the previous descriptions.
Used to output the main charger grid bias voltage at the low mode for 30
sec. For the adjustment procedure of the main charger grid bias voltage,
refer to the previous descriptions.
Used to output the transfer charger voltage for 30 sec. For the adjustment procedure of the transfer charger voltage, refer to the previous
descriptions.
Used to rotate the duplex motor forward for 30 sec.
Used to rotate the duplex motor reversely for 30 sec.
After completion of warmup, the ready lamp is lighted and the currently
set duplex motor rotation speed set value is displayed.
When the set value is entered and the start key is pressed, the set value
is stored.
Key operation
Duplex motor rotation speed set value: Numeric keys
After completion of warmup, the ready lamp is lighted and the currently
set duplex motor switchback time set value is displayed.
When the set value is entered and the start key is pressed, the set value
is stored.
Duplex motor switchback time set value: Numeric keys
10Toner motor operation
check
14Trouble (except for U2)
cancel
16U2 trouble cancelUsed to cancel U2 trouble.
17PF trouble cancelUsed to cancel PF trouble.
Used to operate the toner motor for 30 sec.
Note: If this simulation is executed with the toner hopper installed, toner
is automatically supplied to the developer. Be careful of overtoner.
Used to cancel troubles except for U2.
8 – 4
Key operation
AR-161
Main
code
Sub
code
201Maintenance counter clearUsed to clear the maintenance counter. ∗2
211Maintenance cycle settingUsed to display the currently set maintenance cycle at the numbers
2Mini maintenance counter
display
221Maintenance counter
display
2Maintenance preset value
display
3JAM memory displayUsed to display a JAM generated during copying on the JAM position
ContentsDetails of operation
shown at right. When the set value is entered and the start key is
pressed, the set value is stored.
Used to display the currently set mini maintenance cycle at the numbers
shown at right. When the set value is entered and the start key is
pressed, the set value is stored.
Used to display the current maintenance counter value. ∗1
Used to display the current maintenance preset value (set with SIM
21-1). ∗1
display on the operation panel. Max. 30 recent jams are stored.
Key operationDisplay
JAM history select:
Magnification ratio key
The history number (1 ~ 30) is displayed
on the display.
The JAM position LED corresponding to
the history number is lighted.
Initial
value
Set range
4Total JAM counter displayUsed to display the current total JAM counter value. ∗1
5Total counter displayUsed to display the current total counter value. ∗1
6Developing counter
display
7Developing preset counter
value display
8SPF counter displayUsed to display the current SPF counter value. ∗1
9Paper feed counter displayUsed to display the current paper feed counter value for each paper feed
12Drum counter displayUsed to display the current drum counter value. ∗1
14Flash ROM version displayUsed to display the version number of the flash ROM of each PWB.
15Trouble memory displayUsed to display the actually occurred trouble codes on the display on the
Used to display the current developing unit counter value. ∗1
Used to display the current mini maintenance preset value (set with SIM
21-2). ∗1
port. ∗1
Key operation
Paper feed port selection: Tray select key
operation panel. When the start key is pressed during the main code
display, the sub code is displayed. Max. 20 recent trouble codes are
stored.
Key operationDisplay
Sub code display: Start key Hysteresis 1 → 10: The upper digit of
Trouble code history
select: Magnification ratio
display key
display "A" ∼ "J" lights up.
Hysteresis 11 → 20: The upper digit of
display "A: ∼ "J" blinks.
Used to display the current duplex print counter value. ∗1
display
17Copy counter displayUsed to display the current copy counter value. ∗1
18Printer counter displayUsed to display the current printer counter value. ∗1
19Electronic sort counter
Used to display the current electronic sort counter value. ∗1
display
20FAX print counter displayUsed to display the current FAX print counter value. ∗1
21Scanner counter displayUsed to display the current scanner counter value.
241JAM memory, JAM
Used to clear the JAM memory and the JAM counter. ∗2
counter clear
2Trouble memory clearUsed to clear the trouble memory. ∗2
4SPF counter clearUsed to clear the SPF counter. ∗2
5Duplex counter clearUsed to clear the duplex counter. ∗2
6Paper feed counter clearUsed to clear the paper feed counter. ∗2
7Drum counter clearUsed to clear the drum counter. ∗2
8Copy counter clearUsed to clear the copy counter. ∗2
9Printer counter clearUsed to clear the printer counter. ∗2
10Electronic sort counter
Used to clear the electronic sort counter. ∗2
clear
11FAX print counter clearUsed to clear the FAX print counter. ∗2
13Scanner counter clearUsed to clear the scanner counter.
251Main motor operation
check
Used to drive the main motor for 30 sec. At that time, the cooling motor
rotates at a low speed.
When the developing unit is installed, the developing bias, the grid, and
the main charger are driven.
When the developing unit is not installed, only the main motor is driven.
10Polygon motor operation
Used to drive the polygon motor for 30 sec.
check
261Operation switch displayUsed to display the installed option on the operation panel. (The LED
corresponding to the installed option is lighted.)
Key operation
Display select:
Magnification ratio key
<Lighting with an option installed>
When "A" is displayed:
Shifter: Paper empty LED
Job separator: JAM LED
SPF: SPF select LED
RSPF: SPF JAM LED
Dehumidifying heater: Main body JAM LED
Simplex mode: Multi manual paper feed select LED
When "B" is displayed:
Cassette (2nd step): No. 2 cassette select LED
Cassette (3rd step): No. 3 cassette select LED
Cassette (4th step): No. 4 cassette select LED
Memory installed: Paper empty LED
FAX: JAM LED
Printer: Main body JAM LED
ERDH: Main cassette select LED
16CPM: SPF JAM LED
20CPM: SPF select LED
Document sensor: Auto paper select LED
Display
Initial
value
Set range
3Auditor settingUsed to display the current auditor setting with the numbers at right.
After entering the set value, press the start key, and the set value is
stored.
265Counter mode settingUsed to set the print counter mode in A3 or 11" × 17".
6Destination settingUsed to display the current destination setting with the numbers at right.
ContentsDetails of operation
Used to display the currently set counter value with the numbers at right.
After entering the set value, press the start key, and the set value is
stored.
After entering the set value, press the start key, and the set value is
stored.
Key operation/Display
0: Japan
1: USA (Inch series)
2: Canada (Inch series)
3: Ge r m an y (AB se r ies )
4: UK (AB series)
5: Australia (AB series)
6: France (AB series)
7: EX inch series
8: EX AB series
9: EX inch series (FC conformity)
10: EX AB series (FC conformity)
11: Taiwan, China (AB series)
Initial
value
Set range
22Language settingUsed to display the current setting of the language information with the
30CE mark conformity
control setting
301Machine sensor operation
check
number at right. After entering the set value, press the start key, and the
set value is stored.
Key operation/Display
0: Japanese
1: English
2: French
3: German
4: Italian
5: Dutch
6: Swedish
7: Spanish
Used to display the current setting of CE mark conformity control with the
number at right. After entering the set value, press the start key, and the
set value is stored.
Key operation/Display
0: CE mark control OFF
1: CE mark control ON
Used to check the sensors in the machine transport system with LED on
the operation panel.
Display
<Lighting at sensor ON>
Paper entry sensor: Machine position JAM LED
Duplex sensor: SPF JAM LED
Paper exit sensor: JAM LED
No. 2 cassette transport sensor: No. 2 cassette position JAM LED
No. 3 cassette transport sensor: No. 3 cassette position JAM LED
No. 4 cassette transport sensor: No. 4 cassette position JAM LED
412OC document sensor
adjustment
Used to read the document sensor input value with paper and perform
the sensor detection level adjustment. For the adjustment procedure of
the document sensor input value, refer to the previous descriptions.
8 – 7
AR-161
Main
code
Sub
code
413Document sensor light
reception level display
421Developer counter clearUsed to clear the developer counter. ∗2
431Fusing temperature settingUsed to display the current setting of the fusing temperature with the
461Copy density level
adjustment
ContentsDetails of operation
Used to display the light reception level and the detection level of the
document sensor. (The sensor level adjusted with SIM 41-2 is displayed.)
Key operationDisplay
Light reception/Detection
level select: Magnification
ratio display key
Sensor select: Magnification
ratio select key
number at right. After selecting the fusing temperature with the magnification ratio display key, press the start key, and the set value is
stored.
Fusing temperature select: Magnification ratio display key
After completion of warmup, shading is performed and the currently set
copy density level is displayed. For the adjustment procedure, refer to
the previous descriptions.
Key operationDisplay
Mode select: Mode select key <LED lighting at each mode selection>
Display at the 3rd digit
"A": Light reception level display
"b": Document detection level
lighting LED
Sensor A: A3 document size LED
Sensor B: A4 document size LED
Sensor C: A4R document size LED
Sensor D: B4 document size LED
Key operation
Auto mode: AE LED
Manual mode: TEXT LED
Photo mode: PHOTO LED
Toner save mode: TEXT/PHOTO LED
Initial
value
Set range
1 ~ 99
2FAX density level
adjustment
481Main scanning (front/rear)
direction magnification
ratio adjustment
(Copy/FAX/OC-SPF
common)
After completion of warmup, shading is performed and the currently set
FAX density level is displayed. For the adjustment procedure, refer to the
previous descriptions.
Key operationDisplay
Mode select:
Mode select key
After completion of warmup, shading is performed and the currently set
main scanning (front/rear) direction magnification ratio adjustment is performed. For the adjustment procedure, refer to the previous descriptions.
Key operationDisplay
Adjustment mode select:
Magnification ratio key
Manual main scanning
direction magnification
ratio adjustment
Set value: Numeric keys
<LED lighting at each mode selection>
Standard mode: Standard LED
Small character mode:
Small character LED
Fine mode: Fine LED
Ultra fine mode: Ultra fine LED
Photo mode: Photo LED
Auto magnification ratio adjustment:
AE LED
Manual magnification ratio adjustment:
TEXT LED
1 ~ 99
1 ~ 99
8 – 8
AR-161
Main
code
Sub
code
482OC mode sub scanning
direction magnification
ratio adjustment in copying
5SPF mode sub scanning
direction magnification
ratio adjustment in copying
6OC mode sub scanning
direction magnification
ratio adjustment in FAX
ContentsDetails of operation
After completion of warmup, shading is performed and the currently set
OC mode sub scanning direction magnification ratio adjustment in copying is performed. For the adjustment procedure, refer to the previous
descriptions.
Key operation
OC mode sub scanning direction copy magnification ratio in copying:
Numeric keys
After completion of warmup, shading is performed and the currently set
OC mode sub scanning direction magnification ration adjustment in
copying is performed. For the adjustment procedure, refer to the previous descriptions.
Key operation
SPF mode sub scanning direction magnification ratio in copying:
Numeric keys
After completion of warmup, shading is performed and the currently set
OC mode sub scanning direction magnification ratio adjustment in FAX
is performed. For the adjustment procedure, refer to the previous
descriptions.
Key operation
OC mode sub scanning direction magnification ratio in FAX: Numeric
keys
Initial
value
Set range
1 ~ 99
1 ~ 99
1 ~ 99
7SPF mode sub scanning
direction magnification
ratio adjustment in FAX
501Copy image position
adjustment
10Paper off center
adjustment
After completion of warmup, shading is performed and the currently set
SPF mode sub scanning direction magnification ratio in FAX is performed. For the adjustment procedure, refer to the previous descriptions.
Key operation
SPF mode sub scanning direction magnification ratio in FAX:
Numeric keys
After completion of warmup, shading is performed and the currently set
value is displayed. For the adjustment procedure, refer to the previous
descriptions.
Key operationDisplay
Adjustment mode select:Auto: Laser radiation timing adjustment
Exposure mode select keyManual: Lead edge void adjustment
Set value: Numeric keysPhoto: Left edge void adjustment
Auto + Manual + Photo:
Rear edge void adjustment
After completion of warmup, shading is performed and the currently set
off center adjustment of each paper feed port is displayed. For the
adjustment procedure, refer to the previous descriptions.
Key operationDisplay
Paper feed port tray select:
Paper select key
Off center adjustment value:
numeric keys
Main cassette:
Main casset te selec t L ED
Manual paper feed:
Manual feed se lec t LED
No. 2 cassette:
No. 2 cassette select LED
No. 3 cassette:
No. 3 cassette select LED
No. 4 cassette:
No. 4 cassette select LED
1 ~ 99
1 ~ 99
8 – 9
AR-161
Main
code
Sub
code
5013OC mode document off
center adjustment
16SPF mode document off
center adjustment
512Resist amount adjustmentAfter completion of warmup, shading is performed and the currently set
631Shading data check The copy lamp is shifted to the shading position and it is lighted with the
ContentsDetails of operation
After completion of warmup, shading is performed and the currently set
off center adjustment value for the document in OC reading is displayed.
For the adjustment procedure, refer to the previous descriptions.
Key operation
Off center adjustment value: Numeric keys
After completion of warmup, shading is performed and the currently set
off center adjustment value for the document in SPF reading is displayed. For the adjustment procedure, refer to the previous descriptions.
Key operation
Off center adjustment value: Numeric keys
resist amount adjustment value is displayed.
Key operation
Resist amount adjustment: Numeric keys
reference voltage at AD conversion fixed (Vref– = 0.5V, Vref+ = 4.5V).
This state is kept for 10 sec, and the level of one pixel at the center is
displayed for each second.
Display
Display section: Shading data
Initial
value
Set range
8 – 10
AR-161
[9] USER PROGRAM
The factory setting can be changed according to the operating conditions.
1. User program functions
FunctionOutlineDefault
Auto clearWhen a certain time is passed after completion of the machine operation, the mode is
returned to the initial state automatically.
The time to return to the initial state can be set in the range of 30 ~ 120 sec by the unit of 30
sec. This function can be canceled.
Pre-heatWhen the machine is left unused with the power ON, the power consumption level is
automatically lowered to about 60Wh (*1). The time to operate this function can be set in
the range of 30 sec ~ 120 sec by the unit of 30 sec. This function can be canceled.
When this function operates, the pre-heat lamp on the operation panel lights up.
To cancel the pre-heat state, press any key on the operation panel.
(When the START key is pressed, pre-heat is canceled and copying is started,)
This function is canceled with the document is set or the tray is pulled out.
Auto power shut off passing timeWhen the machine is left unused with the power ON, the power consumption is
automatically lowered to about 4.8Wh (*1). The time to operate this function can be set in
the range of 30 min to 240 min. When this function operates, all the lamps except for the
pre-heat lamp turn off.
To cancel the auto power shut off state, press the START key.
Stream feeding mode (with
SPF/R-SPF installed)
Auto power shut off settingThe auto power shut off function can be canceled.Setting
2 in 1/4 in 1 solid line frame setting
Paper auto selectionThe paper of the same size as the document size selected by the document size set key
Tray auto selection (with 1-step
paper feed unit, 2-step paper feed
unit installed)
Department counterRefer to "3. Department counter setting."
Edge erase (with electronic sort
board installed)
2 in 1 layout (with electronic sort
board, SPF/R-SPF installed)
After making copy with SPF/R-SPF, the document feed display lamp blinks, set the
document, and the document is automatically fed.
Images on two or more pages are copied on one sheet of paper (2 in 1/4 in 1). When this
function is used, copying can be made with the solid lines at the boundaries of images.
When the paper auto selection function is operating, if there is no paper of the suitable size
or the suitable direction, paper of the same size but of different direction is automatically
selected and the document images are rotated by 90 degrees to copy.
The magnification ratio auto select function operates and rotates document images by 90
degrees to make proper copy when the document images and the paper direction differ from
each other.
5.5" on ly) is au tomatically selected. This function is canceled.
The paper of the same size as the document size selected by the document size set key
5.5" on ly) is au tomatically selected. This function is canceled.
Shades around images and shades at the bi nding marg in can be e rased by this funct ion.
The erase range can be set in the range of 0 ~ 20mm by the unit of 5mm.
The layout pattern for copying images of two pages on one page can be selected. Pattern A
60 sec
90 sec
30 min
Cancel
Setting
Cancel
Setting
Setting
10mm
Pattern A
4 in 1 layout (with electronic sort
board, SPF/R-SPF installed)
The layout pattern for copying images of four pages on one page can be selected. Pattern A
Pattern APattern BPattern CPattern D
*1: The power consumption in pre-heat, auto power shut off depends on the operating conditions.
9 – 1
Pattern B
AR-161
2. Setting change procedure
Example: Changing the time for operating the auto clear function
(from 60 sec to 120 sec)
1) Press and hold the density adjustment keyfor 5 sec to start
setting.
• When
2) Select the function code with the numeric key.
the copy quantity display shows "--" the digit of 10 blinking.
• The code of the selected function is displayed (blinking) on the
digits of 10 and 100.
• For auto clear, select 1.
• Select the suitable code according to the table below.
User program setting contents
FunctionFunction codeSetting code
Auto clear10 (Cancel)
Pre-heat20 (Cancel)
Auto power shut off passing
time (*2)
Stream feeding mode4∗0 (Cancel)
Auto power shut off function
setting (*2)
2 in 1/4 in 1 solid frame setting6∗0 (Cancel)
Rotation copy70 (Cancel)
Paper auto selection80 (Cancel)
Tray auto selection90 (Cancel)
Department counter (*1)10 ~ 15
Edge erase160 (0mm)
2 in 1 layout (*3)17∗1 (Pattern A)
4 in 1 layout (*3)18∗1 (Pattern A)
∗ Setting at the factory shipping
*1. For the setting procedure, refer to "3. Department counter."
*2. With the auto power shut off canceled (function code "5", set
code "0", auto power shut off time setting code "3"), the mode
enters the auto power shut off setting mode automatically.
lamps start blinking at the same time,
1 (30 sec)
∗2 (60 sec)
3 (90 sec)
4 (120 sec)
1 (30 sec)
2 (60 sec)
∗3 (90 sec)
4 (120 sec)
3∗1 (30 sec)
2 (60 sec)
3 (90 sec)
4 (120 sec)
5 (240 sec)
1 (Setting)
50 (Cancel)
∗1 (Setting)
1 (Setting)
∗1 (Setting)
∗1 (Setting)
∗1 (Setting)
1 (5mm)
∗2 (10mm)
3 (15mm)
4 (20mm)
2 (Pattern B)
2 (Pattern B)
3 (Pattern B)
4 (Pattern B)
*3. For the layout pattern, refer to page 9-1.
• The number of the selected function blinks on the digit of 1 or
the copy quantity display.
Cancel: When any key is pressed by mistake, press the clear key
and press the proper key.
3) Press the START key.
• The selected function code is changed from blinking to lighting.
• The currently set code blinks on the digit of 1.
4) Select the setting code with the numeric key.
• For setting to 80 sec, select 3.
• Make setting referring to the setting codes of "User program
setting contents."
Cancel: When any wrong key is pressed, press the clear key and
5) Press the START key,
resume from procedure 2.
• The selected setting code is changed from blinking to lighting.
The setting is completed with the above operation.
Memo: To set another function, press the clear key after this proce-
dure and resume from procedure 2.
6) Press the density adjustment keyto end the setting.
•
returns to the normal display.
lamps go off. The copy quantity display
3. Department counter setting
Note: The department counter is effective only in copying. Counting
is not made in FAX and printer output.
When the department counter is set, the copy count for each department (max. 20 dept.) can be made and displayed when necessary.
With the department counter set, copying cannot be made unless the
registered number (password number of 3 digits) is entered.
1) Press and hold the density adjustment keyfor about 5 sec to
start setting.
•
the copy quantity display displays "--" and the digit of 10 blinks.
2) Select the function code with the numeric key.
• Refer to the function code for setting.
Setting contents of department counters
FunctionFunction code
Setting content10Department counter
Department
counter
setting/cancel
Department
number recording
Department
number delete
Copy quantity
display (Total)
Copy quantity
delete (Total
delete)
• The entered number blinks on the digits of 100 and 10 on the
copy quantity display.
Cancel: When a wrong key is pressed, press the clear key and enter
the correct key.
lamps start blinking at the same time, and
setting or cancel. Factory
setting: Cancel
11Department number
recording.
Max. 20 department can
be recorded.
12Recorded department
number is changed.
13Recorded number is
deleted.
14The copy quantity in each
department is displayed.
The count is made up to
49,999 sheets. From that,
counting is started from 0.
15The counted copy quantity
is canceled. The count of
each department or that of
all the departments can be
deleted.
9 – 2
AR-161
3) Press the START key.
• The selected function code is changed from blinking to lighting.
• The currently set code blinks on the digit of 1.
Cancel: When the "E" (error code) is lighted on the digit of 1, press
4) Perform setting of the department counter.
5) Press the density adjustment keyto end the setting proce-
the clear key and return to procedure 2.
Perform setting referring to "F.Copy quantity delete" in "A.
Department counter setting/cancel."
dure.
•
lamps go off.
• The copy quantity display returns to the normal display.
A. Department counter setting/cancel (Function
code: 0)
Used to set or cancel the department counter. When this setting is
made, the copy quantity display lights up with "--."
Under this state, the department number in 3 digits must be entered
to operate the machine.
After entering the function code "0," use the numeric key to set or
cancel the department counter.
1) To set the department counter, select "1." To cancel, select "0."
Then press the START key.
Memo: After this setting, use the "Department number recording" to
record the department number of each department.
(Max. 20 departments can be recorded.)
2) Press the clear key.
B. Department number recording (Function code:
11)
Used to record the department number.
When the function code "1" is entered, the copy quantity display
blinks with "--."
When the recorded department number reaches 20, the error code of
"11E" is displayed.
1) Use the numeric key to enter the number of 3 digits (except for
000) and press the START key.
• When the recorded number or "000" is entered, the entered
number blinks. In this case, enter another number.
• To register another department number, repeat the same pro-
cedure 1) above.
2) After completion of recording, press the clear key.
• The registered department number and each department name
must be recorded. (Since the department name cannot be
registered, they must be recorded for total calculation.)
C. Department number change (Function code: 12)
Used to change the department number.
Enter the function code "12" and select the department number to be
registered.
If there is no registered department number, the error code of "12E"
is displayed.
1) Select the department number with % key, and press the START
key.
• The copy quantity display shows "- - - - ."
2) Use the numeric key to enter a new department number (3 digits
except for 000), and press the START key.
• When the recorded number or "000" is entered, the entered
number blinks. In this case, enter another number.
• To register another department number, repeat the same pro-
cedures 1) and 2) above.
3) After completion of changing, press the clear key.
D. Department number delete (Function code 13)
Delete the department number.
Enter the department code (13) and select all departments clear or
specified department clear.
When there is no registered department number, the error code "13E"
is displayed.
(1) All departments clear
1) Press "1" key.
2) Press the START key.
(2) Specified department clear
1) Press "0" key.
2) Select the department number to be deleted with % key.
3) Press the START key.
E. Copy quantity display (sum total) (Function
code: 14)
The copy quantity of each department is displayed.
Enter the function code "14" and select the department number of
which the total copy quantity is to be displayed.
If there is no registered department number, the error code "14E" is
displayed.
1) Select the department number with % key.
2) Press and hold "0" key, and the copy quantity will be displayed.
• The copy quantity is displayed in two steps.
(Example) Copy quantity: 12, 345
• To display the copy quantity of another department, repeat the
same procedure 1) and 2).
3) Press the clear key to terminate the procedure.
F. Copy quantity clear (total clear) (Function code:
15)
The copy quantity of each department is cleared.
After entering the function code "15", select all department clear or
speci fied depar tment clear.
If there is no registered department, the error code "15E" is dis-
OperationU900Operation board communication trouble
80
81
82
84
88
Zero crossL801Zero cross trouble
CCDE704CCD white level troubleCCD white level abnormality
05CCD black level troubleCCD black level abnormality
12
LSUE703LSU troubleLSU abnormality
Mirror motorU329Mirror home position error
L100Mirror feed trouble
L300Mirror return trouble
Main motorL401Main motor lock
LSUL610Polygon motor trouble
ShifterF106Shifter motor trouble
Job separatorL410Job separator motor troubleJob separator function
U95
Operation board communication trouble
(Protocol)
Operation board communication trouble
(Parity)
Operation board communication trouble
(Overrun)
Operation board communication trouble
(Framing)
Operation board communication trouble
(Timeout)
Shading troubleWhite correction is not completed with
the specified number of operations
Operation connection abnormalityPanel individual display caused by
abnormal panel connection
AR-161
10 – 2
AR-161
[11] MAINTENANCE
1. Maintenance table
✕: Chec k (Clean, adjust, or replace w hen required.) F: C lean b: Replace v: Adjust ✩: Lubricate
Unit namePart name
Transfer sectionCharger unitFF
Transfer paper guideFF
Optical sectionLamp unitReflectorFF
MirrorFF
No. 2/3 mirror unitMirrorFF
Pulley✕✕
CCD peripheralLensFF
GlassTable glassFF
White plateFF
OtherDrive wire✕✕
Rail✕✩✕✩
Document coverFF
Document size sensorFF
LSUDust-proof glassFF
Paper feed sectionMulti paper feed sectionTakeup rollerFF
Paper feed rollerFF
Spring clutchF✩F✩
Cassette sectionPaper feed rollerFF
Spring clutchF✩F✩
Paper transport sectionPS rollerFF
Transport (paper exit) rollersFF
Spring clutchF✩F✩
Fusing sectionUpper heat rollerFb
Pressure rollerFF
Pressure roller bearing✕F✩
Upper separation pawl✕F
Lower separation pawl✕F
Drive sectionGears✕✩✕✩
Belts✕F
When calling or
replacing the kit
150k
11 – 1
AR-161
[12] DISASSEMBLY AND
ASSEMBLY
WARNING: Before performing the disassembly procedure, be sure
to remove the power cord to prevent against an electric
shock.
No.ItemPage
1High voltage section12-1
2Optical section12-1
3Fusing section12-2
4Paper exit section12-4
5MCU12-6
6Optical frame unit12-6
7LSU12-6
8Tray paper feed section/Paper transport section12-7
9Manual multi paper feed section12-8
10Power section12-10
11Developing section12-11
12Process section12-12
1. High voltage section
No.Content
ATransfer charger unit
BCharger wire
B. Charger wire
Installation: The spring tip must be between two reference ribs.
• The charger wire must be free from twist or bending.
• Be sure to put the charger wire in the V groove.
(1 )
(1 )
(3 )
(1 )
(1 )
(2 )
(1 )
A. Transfer charger unit
(5 )
(4 )
(2 )
(1 )
(1 )
2. Optical section
No.Content
ATable glass
BCopy lamp unit
CCopy lamp
DLens unit
A. Table glass
(1 )
(2 )
(1 )
(3 )
(3 )
(4 )
(5 )
(3 )
(3 )
12 – 1
AR-161
B. Copy lamp unit
Disassembly: Be sure to put No. 2/3 mirror unit to the positioning
plate (A).
Assembly:Put the notched surface of wire holder (3) downward,
Adjustment:Main scanning direction distortion balance adjustment
(4 )
tighten temporarily, and install.
(A )
(2 )
(3 )
(4 )
(1 )
(A )
(2 )
(3 )
D. Lens unit
3. Fusing section
C. Copy lamp
(4 )
(3 )
(6 )
(5 )
(5 )
No.Contents
AFusing unit
BThermostat
CThermistor
DHeater lamp
EUpper heat roller
FSeparation pawl
GLower heat roller
A. Fusing unit removal
(1 )
(1 )
(1 )
(1 )
(2 )
(3 )
(2 )
12 – 2
AR-161
B. Thermostat
(2 )
(3 )
(1 )
(1 )
C. Thermistor
Installation: Check that the thermistor is in contact with the upper
heat roller.
(1 )
Assembly: Put the paper guide earth spring (A) under the paper
guide (B) before fusing.
(B)
(A)
(3)
(4)
(3)
Disassembly: There are three pawls on the fusing cover. Remove
the screws and slide the fusing cover to the right to
remove.
The heater lamp is fixed on the fusing cover with a
screw. Slide the fusing cover to the front and remove
the screw, then remove the heater lamp.
(2 )
D. Heater lamp
Assembly: Insert the spring (A) into the hole (B) in the fusing frame.
(B)
(A)
(6 )
(9 )
(5 )
(7 )
(10)
(8 )
(A )
(8 )
(B )
(C )
Assembly:Put the fusing harness (A) on the heater lamp (B) as
shown in the figure and fix them together.
Place the fusing harness inside the rib (C).
(1)
(2)
(2)
12 – 3
(5)
AR-161
E. Upper heat roller
(1 )
(3 )
(2 )
(3 )
G. Lower heat roller
Assembly: When installing the paper gu ide ( 3) be for e fus ing , tig hten
the paper guide fixing plate so that the paper guide fixing
plate (2) is in contact with the frame bottom section (A)
under fusing.
(2 )(A )
(4 )
(1 )
(1 )
(2 )
(3 )
F. Separation pawl
(2 )
(1 )
(2 )
(2 )
(1 )
(1 )
(4 )
(1 )
(2 )
4. Paper exit section
No.Content
AFront cabinet unit/Right cabinet unit
BPaper exit unit
CTransport roller
DPaper exit roller
A. Front cabinet unit, right cabinet disassembly
(5 )
(4 )
(6 )
(2 )
(6 )
(1 )
(3 )
(1 )
(5 )
12 – 4
B. Paper exit unit
(3)
AR-161
(5 )
(4 )
(1 )
(2 )
(B )
(4 )
(A )
D. Paper exit roller
(5 )
(3 )
(7 )
(6 )
(4 )
(5 )
(1 )
(9 )
C. Transport roller
(1 )
(2 )
(8 )
(9 )
(1 )
(10)
(8 )
(6 )
(7 )
(6 )
(2 )
(3 )
(2 )
Assembly: Insert the spring pin so that the waveform (A) of the
12 – 5
spring pin faces in the longitudinal direction of the paper
exit drive gear long hole (B).
Be sure to insert two ribs (C) into the groove (D).
AR-161
(A )
(B )
6. Optical frame unit
No.Content
AOptical frame unit
A. Optical frame unit
(4 )
(6 )
(D )
(7 )
(C )
(5 )
(8 )
(C )
(7 )
(6 )
(4 )
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(3)
5. MCU
No.Content
AMCU
A. MCU disassembly
Note: When replacing the MCU PWB, be sure to replace the
EEPROM of the MCU PWB to be replaced.
(1)
Installation: Install the optical unit in the sequence shown above.
7. LSU
No.Content
ALSU unit
A. LSU unit
(3)
(4)
(1)
(1)
(2)
(1)
(2)
(1)
12 – 6
(6 )
(5 )
(5 )
Adjustment: • Image lead edge position adjustment
• Image left edge position adjustment
• Paper off-center adjustment
Assembly: Do not miss the door lock pawl.
(3 )
AR-161
(4 )
8. Tray paper feed section/Paper transport
section
Assembly: Move down the clutch pawl as shown below, and avoid
the clutch and install.
(1)
(2)
(2)
(1)
12 – 7
AR-161
C. Solenoid (paper feed solenoid, resist roller
solenoid)
(3)
(2)
(2)
(1)
D. Resist roller clutch/Resist roller
E. Paper feed clutch/Paper feed roller
(Semi-circular roller)
(1 )
(2 )
(3 )
(4 )
9. Manual multi paper feed section
(3 )
(3 )
(2 )
(1 )
No.Content
AManual multi paper feed section
BManual transport clutch
CManual paper feed clutch
DManual transport roller/Manual paper feed roller
EMulti feed solenoid
A. Manual multi paper feed
(1 )
(3 )
(4 )
(2 )
12 – 8
(2 )
(A )
(3 )
AR-161
B. Manual transport clutch
(2 )
Disassembly: Set up the cam transmission arm (2), and remove it.
Assembly:Install so that the cam transmission arm (2) is under
the roller arm (A).
(4 )
(3 )
(5 )
(3 )
(A )
(4 )
(1 )
(1 )
C. Manual paper feed clutch
Disassembly: Set up the shutter arm (1) then remove it.
Assembly:Install so that the boss section of the fulcrum arm (2)
comes between ribs.
(1 )
(2 )
(7 )
(8 )
(5 )
12 – 9
(6 )
(1)
AR-161
D. Manual transport roller/Manual paper feed roller
Installation: Be careful of the installing direction of the manual
transport roller (4).
(3 )
(1 )
(2 )
(5 )
(4 )
10. Power section
No.Content
APower unit
A. Power unit
(3 )
(3 )
(5 )
(3 )
(4 )
(4 )
(1 )
C
O
K
L
T
O
K
E. Multi feed solenoid
Assembly: Install so that the latches (A) and (B) move smoothly.
(1 )
(A )(B )
(2 )
(2 )
(1 )
(1 )
(2 )
12 – 10
(1)
AR-161
1 1. Developing section
No.Contents
AWaste toner box
BDeveloping box
CDeveloping doctor
DMG roller
A. Waste toner box
(2 )
(1 )
(1 )
B. Developing box
D. MG roller
(2 )
(1 )
(5 )
(4 )
(3 )
(1 )
C. Developing doctor
(3 )
(6 )
(2 )
Adjustment: MG roller main pole position adjustment
(2 )
(1 )
(1 )
Adjustment: Developing doctor gap adjustment
12 – 11
AR-161
12. Process section
No.Contents
ADrum unit
BMC holder unit
CCleaning blade
A. Drum unit
Assembly: When installing the drum cover (1), be sure to engage the
transport screw gear (A) rib and the detection gear (B).
1/CS1/CS1OUTArea 1 chip selectSRAM chip selectL: Select
2/CS0/CS0OUTArea 0 chip selectFlash ROM chip selectL: Select
3VSSPOWGround pin
4VSSPOWGround pin
5VCCPOWPower pin
6A0A0OUTAddress bus 0System bus
7A1A1OUTAddress bus 1System bus
8A2A2OUTAddress bus 2System bus
9A3A3OUTAddress bus 3System bus
10VSSPOWGround pin
11A4A4OUTAddress bus 4System bus
12A5A5OUTAddress bus 5System bus
13A6A6OUTAddress bus 6System bus
14A7A7OUTAddress bus 7System bus
15A8A8OUTAddress bus 8System bus
16A9A9OUTAddress bus 9System bus
17A10A10OUTAddress bus 10System bus
18A11A11OUTAddress bus 11System bus
19VSSPOWGround pin
20A12A12OUTAddress bus 12System bus
21A13A13OUTAddress bus 13System bus
22A14A14OUTAddress bus 14System bus
23A15A15OUTAddress bus 15System bus
24A16A16OUTAddress bus 16System bus
25A17A17OUTAddress bus 17System bus
26A18A18OUTAddress bus 18System bus
27A19A19OUTAddress bus 19System bus
28VSSPOWGround pin
29A20A20OUTAddress bus 20System bus
30/IRQ5/SPFCOVERINInterruption request 5SPF cover sensor interruption 1: Cover close
31/IRQ6/OCCOVERINInterruption request 6OC cover sensor interruption0: Cover close
32/IRQ7MHPINInterruption request 7Mirror home position sensor
interruption
33/IRQ3/SPFPAPERINInterruption request 3SPF paper pass sensor
interruption
34/IRQ2/CPUSYNCINInterruption request 2Horizontal sync signal
35VSSPOWGround pin
36VSSPOWGround pin
37/IRQ1/FWINInterruption request 1Zero cross interruption 0: Effective
38/IRQ0/LOOPINTINInterruption request 0Loop interruption 0: Effective
39VCCPOWPower pin
40D0D0BIDIRData bus 0System bus
41D1D1BIDIRData bus 1System bus
42D2D2BIDIRData bus 2System bus
43D3D3BIDIRData bus 3System bus
44VSSPOWGround pin
45D4D4BIDIRData bus 4System bus
46D5D5BIDIRData bus 5System bus
47D6D6BIDIRData bus 6System bus
48D7D7BIDIRData bus 7System bus
49D8D8BIDIRData bus 8System bus
50D9D9BIDIRData bus 9System bus
51D10D10BIDIRData bus 10System bus
52D11D11BIDIRData bus 11System bus
53VSSPOWGround pin
54D12D12BIDIRData bus 12System bus
55D13D13BIDIRData bus 13System bus
56D14D14BIDIRData bus 14System bus
57D15D15BIDIRData bus 15System bus
58VCCPOWPower pin
59P30—OUTGeneral port 30Reservation L: Level fixing output
60TXD1TXD1OUTSCI channel 1 serial
transmission
61P32SDAODNGeneral port 32EEPROM control12CBUS data line
62RXD1RXD1INSCI channel 1 serial reception Service connectorUART input
63P34SCLODNGeneral port 34EEPROM control12CBUS clock line
64P35/FROMUPINGeneral port 35Service connector0: Service mode
65VSSPOWGround pin
66/DREQ0/DREQ0INDMAC channel 0 external
74P25/FAXPAGEINGeneral port 25FAX option page signal
detection
75P24/READYOUTGeneral port 24Machine ready signal L: Machine ready state
76P23/PWOFFOUTGeneral port 23Power off signal L: Power interruption
77P22/SCANSPOUTGeneral port 22Scan stop signal L: Scanning operation
78P21/SCANSTOUTGeneral port 21Scan start signal L: Scanning operation
79P20/PRSTARTOUTGeneral port 20Print start signal L: Printing effective
80/WDTOVR—OUTWatch dog timer overflowSystem resetL: System restart
81/RES—INSystem resetSystem reset0: Power on reset
82NMI—INNon-maskable interruption
request
83/STBY—INStand-byReservation 1: Level fixing input
84VCCPOWPower pin
85XTAL—INOscillation pinOscillator (19.6608MHz)
86EXTAL—OUTOscillation pinOscillator (19.6608MHz)
87VSSPOWGround pin
88âCPUCLKOUTSystem clock System clock 19.6608MHz clock output
89VCCPOWPower pin
90/AS/ASOUTAddress strobeSystem busL: Address effective
91/RD/RDOUTLead strobeSystem busL: Lead effective
92/HWR/HWROUTHighlight enableSystem busL: Highlight effective
93/LWR/LWROUTRow write enableSystem busL: Row write effective
94PF2/TMENOUTGeneral port F2 Toner motor drive controlL: Rotating
95PF1PMDOUTGeneral port F1Polygon motor drive control H: Rotating
96PF0MMDOUTGeneral port F0Main motor drive control H: Rotating
97P50/MMRDYINGeneral port 50Main motor ready signal 0: Rotation stable state
98P51/PMRDYINGeneral port 51Polygon motor ready signal 0: Rotation stable state
99VSSPOWGround pin
100VSSPOWGround pin
101P52/PRLINEOUTGeneral port 52Print line signal L: Printing effective
102P53/SCLINEOUTGeneral port 53Scan line signal L: Scanning operation
103AVCCPOWAnalog power pin
104VREFPOWAnalog reference pin
105AN0RTHINAnalog input 0Fusing thermistor
106AN1—INAnalog input 1Reservation
107AN2—INAnalog input 2Reservation
108AN3TONERINAnalog input 3Toner sensor5V: Toner empty
109AN4—INAnalog input 4Reservation
110AN5—INAnalog input 5Reservation
111DA0DA0OUTAnalog output 0CCD reference + side
112DA1DA1OUTAnalog output 1CCD reference – side
113AVSSPOWAnalog ground pin
114VSSPOWGround pin
115TCLKDLFTCLKINTimer clock external inputSeparator motor step countSeparator motor clock input
116TIOCA2TMCLKOUTTimer clock external outputToner motor clock960Hz clock output
117TCLKCSFTCLKINTimer clock external inputShifter motor step countShifter motor clock input
118TIOCA1PMCLKOUTTimer clock external outputPolygon motor clock 2078.74Hz clock output
119TCLKBSPFCLKINTimer clock external inputSPF motor step countSPF motor clock input
120TCLKAMIRCLKINTimer clock external inputMirror motor step countMirror motor clock input
121/DACK1—OUTDMAC channel 1
Fig. 4 shows the block diagram of the ASIC.
The ASIC is composed of the following three blocks; the image process section, the print control section, and the I/F section.
The image process section processes the image data from the CCD PWB according to the operation mode, such as shading, AE process,
resolution conversion. and zooming.
The print control section outputs the image-processed data during copying to the LSU (Laser unit) in synchronization with writing timing of the LSU.
The I/F section controls communication of interface (IEEE1284) with the host PC and controls DRAM of send/receive data buffer with the host PC.
(Only for models with the printer function)
The ASIC is controlled by the CPU which writes the operation mode and the set values necessary for each operation mode to the ASIC control
register.
b. pin/signal table
PIN
Signal name IN/OUTDescription
No.
1/SCANSPINScanner process interrupt signal
2/PRSTARTINPrint start trigger signal
3TMONINToner motor ON/OFF
4TMCLKINToner motor reference clock
53.3VPower
6CPUAD7IN
7CPUAD6IN
8GNDPower
14/CPUSYNCOUTHorizontal synchronization signal
15/INTROUTInterruption request signal
16/CPUCSINCPU chip select signal
17/RESETINReset signal
185VPower
19GNDPower
203.3VPower
21GNDPower
22MDATA15IN/OUT
23MDATA14IN/OUT
24MDATA13IN/OUT
25MDATA12IN/OUT
26MDATA11IN/OUT
Data bus of DRAM (page memory)
AR-161
PIN
Signal name IN/OUTDescription
No.
27MDATA10IN/OUT
28MDATA9IN/OUT
29MDATA8IN/OUT
30MDATA7IN/OUT
313.3VPower
32MDATA6IN/OUT
33MDATA5IN/OUT
34GNDPower
35MDATA4IN/OUT
36MDATA3IN/OUT
37MDATA2IN/OUT
38MDATA1IN/OUT
39MDATA0IN/OUT
40/RAS0OUTRAS signal 0 of DRAM (page
41/RAS1OUTRAS signal 1 of DRAM (page
42/RAS2OUTRAS signal 2 of DRAM (page
43/RAS64OUT(Not used)
443.3VPower
45/RAS16OUT(Not used)
46MAD0OUTAddress bus of DRAM (page
47GNDPower
48MAD1OUT
49MAD2OUT
50MAD3OUT
51MAD4OUT
52MAD5OUT
53MAD6OUT
54MAD7OUT
55MAD8OUT
56MAD9OUT
573.3VPower
58MAD10OUTAddress bus of DRAM (page
59MAD11OUT
60GNDPower
61/CAS0OUTCAS signal of DRAM (page
62/CAS1OUT
63/OEOUTRead enable signal of DRAM
99/ESREQOUT
100/ESACKIN
101/ESCSIN
102PARAD0IN/OUT
103PARAD1IN/OUT
104PARAD2IN/OUT
105PARAD3IN/OUT
106PARAD4IN/OUT
107PARAD5IN/OUT
1085VPower
109PARAD6IN/OUT
110PARAD7IN/OUT
111GNDPower
112/REVOUT
113INITIN
114/SLCTININ
115/AUTOFDIN
116/STBIN
117/ACKOUT
118BUSYOUT
119PEOUT
120/FAULTOUT
1215VPower
122SLCTOUT(Not used)
123/TESTPIN0INHigh: Normal Low: Test
124GNDPower
125PFCLKINWrite clock
126/TESTPIN1INHigh: Normal Low: Test
127/SYNCENOUTJitter adjustment IC trigger signal
128SD10IN/OUT
129SD11IN/OUT
130SD12IN/OUT
131SD13IN/OUT
132SD14IN/OUT
1335VPower
134SD15IN/OUT
135SD16IN/OUT
136GNDPower
137SD17IN/OUT Data line to SRAM before are
138SOE1OUTRead enable line to SRAM before
139SWE1OUTWrite enable line to SRAM before
140SCS1OUTChip select line to SRAM before
(Not used)
(Not used)
(Not used)
(Not used)
(Not used)
(Not used)
Data line to SRAM before are
separation
Data line to SRAM before are
separation
separation
area separation
area separation
area separation
13 – 6
AR-161
PIN
Signal name IN/OUTDescription
No.
141SOE0OUTRead enable line to SRAM before
142SWE0OUTWrite enable line to SRAM before
143SCS0OUTChip select line to SRAM before
144SD00IN/OUT Data line to SRAM before are
145SD01IN/OUT
1465VPower
147SD02IN/OUT Data line to SRAM before are
148SD03IN/OUT
149GNDPower
150SD04IN/OUT
151SD05IN/OUT
152SD06IN/OUT
153SD07IN/OUT
154SAD0OUT
155SAD1OUT
156SAD2OUT
157SAD3OUT
158SAD4OUT
159SAD5OUT
160SAD6OUT
161SAD7OUT
162GNDPower
163SAD8OUT
164SAD9OUT
165SAD10OUT
166SAD11OUT
167SAD12OUT
168SAD13OUT
169/f1OUTCCD drive signal transfer clock
170/f2OUTCCD drive signal transfer clock
171/SHOUTCCD drive signal shift pulse
1725VPower
173RSOUTCCD drive signal reset pulse
174SPOUTCCD drive signal sampling hold
175GNDPower
176CPOUTA/D conversion IC latch clock
177BCLKOUTCCD shield output latch signal
178IDIN0IN
179IDIN1IN
180IDIN2IN
181IDIN3IN
182IDIN4IN
183IDIN5IN
184IDIN6IN
1855VPower
186IDIN7INImage scan data (after 8bit A/D
187/SDCLKOUTEffective image area signal
188GNDPower
189SFCLKINCCD drive clock (48MHz)
190TEST port 0INHigh: Normal Low: Test
191/SYNCINHorizontal synchronization signal
192/LDOUTLaser drive signal
193/LENDOUTLaser APC signal
194/VIDEOCSOUTVideo data control
195—OUTNC
area separation
area separation
area separation
separation
separation
Data line to SRAM before are
separation
Address line to SRAM before area
separation
Address line to SRAM before area
separation
(First phase)
(Second phase)
pulse
Image scan data (after 8bit A/D
conversion)
conversion)
(HSYNC) from LSU
PIN
Signal name IN/OUTDescription
No.
196—OUTNC
1973.3VPower
198—OUT
199—OUT
200GNDPower
201—OUT
202—OUT
203—OUT
204—OUT
205—OUT
206—OUT
207—OUT
208—OUT
209—OUT
2103.3VPower
211—OUT
212—OUT
213GNDPower
214/PCLPCSOUTPCL option print data control
215/FAXPCSOUTFAX option print data control
216/ESPCSOUTElectronic sort option print data
217—OUTNC
218CV_STARTOUT
219CV_COUNTOUT
220CV_SIZE3OUT
221CV_SIZE2OUT
222CV_SIZE1OUT
2235VPower
224CV_SIZE0OUT
225CV_DPXOUT
226GNDPower
227CV_CAOUTCopy vendor control
228—OUTNC
229TMOUTToner motor drive output (+)
230TM_OUTToner motor drive output (–)
231CPUD15IN/OUT
232CPUD14IN/OUT
233CPUD13IN/OUT
234CPUD12IN/OUT
235CPUD11IN/OUT
2365VPower
237CPUD10IN/OUT
238CPUD9IN/OUT
239GNDPower
240CPUD8IN/OUT
241CPUD7IN/OUT
242CPUD6IN/OUT
243CPUD5IN/OUT
244CPUD4IN/OUT
245CPUD3IN/OUT
246CPUD2IN/OUT
247CPUD1IN/OUT
248CPUD0IN/OUT
2493.3VPower
250/CPUWRINCPU write signal
251/CPURDINCPU read signal
252GNDPower
253CPUCLKINCPU system clock
254GNDPower
255 TEST PORT1INHigh: Normal Low: Test
256/SCANSTINScanner process start signal
60GNDPOW
61VCCPOW
62PMC4POUT3/DPXDBOUTDuplex motor phase /B driveH: Drive
63PWM0POUTPFANMDOUTPower fan motor driveH: Drive
64PWM1POUTTFANMDOUTFusing fan motor driveH: Drive
65P0OUT8SOPHIAOUT(Not used)
66P0OUT9/LOOPINTOUTLoop interruption controlL: Interruption
67P0OUT10—OUT(Not used)
68P0OUT11—OUT(Not used)
69GNDPOW
70P0OUT12MIRMO0OUTMirror motor phase current control 0H: Power down
71P0OUT13MIRMO1OUTMirror motor phase current control 1H: Power down
72P0OUT14PDOWNOUTSPF motor phase current controlH: Power down
73P0OUT15—OUT(Not used)
74P1OUT12SPFPSOLOUTSPF pickup solenoid driveH: Drive
75P1OUT13SPFGSOLOUTSPF gate solenoidH: Drive
76P1OUT14SPFRSOLOUTSPF release solenoid driveH: Drive
77VCCPOW
78P1OUT15SPFCLHOUTSPF clutch solenoidH: Drive
79P0IN0PININPaper in sensor detection1: Paper presence
80GNDPOW
81VCCPOW
82P0IN1POUTINPaper out sensor detection1: Paper presence
83P0IN2PDPXINDuplex control sensor detection 0: Paper presence
84P0IN3LFTHPINSeparator home position sensor detection1: Home position
85GNDPOW
86P0IN4/SFTHPINShifter home position sensor detection0: Home position
87P0IN5PFULLINTray paper full sensor detection1: Paper full
88P0IN6MHPINMirror home position sensor detection 1: Home position
89VCCPOW
90GNDPOW
91PFCLKPFCLKINDot count control
92GNDPOW
93GNDPOW
94LDB/VIDEOINDot count control0: Effective
95LENDBS/HINDot count control0: Effective
96VCCPOW
97P0IN7/CV_COPYINCoin vendor copy enable detection 0: Copy enabled
98P0IN8/HTEMPINFusing thermistor abnormally high temperature
180GNDPOW
181VCCPOW
182PMC3TCLKLFTCLKOUTSeparator motor step countSeparator motor clock output
183PMC3DREQB—OUT(Not used)
184PMC4TCLK—OUT(Not used)
185PMC4DREQB—OUT(Not used)
186DREQ0B/DREQ0OUT"Mirror, SPF motor acceleration/reduction control"L: Request
187DREQ1B/DREQ1OUT"Shifter, separator motor acceleration/reduction
control"
188A16A16INSystem bus
189VCCPOW
190CS1B/CS1INSystem bus0: Select
191CSOUT10B/CS10OUTSystem busL: Select
192CSOUT11B/CS11OUTSystem busL: Select
193CS3B/CS3INSystem bus0: Select
194RDB/RDINSystem bus0: Read
195HWRB/HWRINSystem bus0: Highlight
196LWRB/LWRINSystem bus0: Row write
197GNDPOW
198A1A1INSystem bus
199A2A2INSystem bus
200GNDPOW
201VCCPOW
202A3A3INSystem bus
203A4A4INSystem bus
204A5A5INSystem bus
205VCCPOW
206A6A6INSystem bus
207A7A7INSystem bus
208GNDPOW
209RSTB/RESETINSystem reset0: Reset
210GNDPOW
211CLKCPUCLKINSystem clock
212GNDPOW
213D0D0BIDIRSystem bus
214D1D1BIDIRSystem bus
215D2D2BIDIRSystem bus
216GNDPOW
217D3D3BIDIRSystem bus
218D4D4BIDIRSystem bus
219D5D5BIDIRSystem bus
220VCCPOW
221GNDPOW
222D6D6BIDIRSystem bus
223D7D7BIDIRSystem bus
224VCCPOW
225D8D8BIDIRSystem bus
226D9D9BIDIRSystem bus
227D10D10BIDIRSystem bus
228D11D11BIDIRSystem bus
229D12D12BIDIRSystem bus
230D13D13BIDIRSystem bus
231D14D14BIDIRSystem bus
232GNDPOW
233D15D15BIDIRSystem bus
234PMC1POUT0SPFDAOUTSPF motor phase A driveH: Drive
235PMC1POUT1SPFDBOUTSPF motor phase B driveH: Drive
236PMC1POUT2/SPFDAOUTSPF motor phase /A driveH: Drive
237PMC1POUT3/SPFDBOUTSPF motor phase /B driveH: Drive
238DSCLKDSCLKODNDocument size sensor control
239DSLED0LED0OUT2: Beam document size sensor control
240VCCPOW
This circuit detects ON/OFF of power to control start/stop of each circuit. The 5V voltage of the main PWB is detected by the reset IC to generate
the reset signal.
When the power voltage reaches the specified level, the circuit operations are started. Before the power voltage falls below the specified level, the
circuit operations are stopped to prevent against malfunctions.
(6) Main motor drive circuit
The main motor is driven by the MMD signal from ASIC. While the main motor is rotating, the MMD signal is driven to HIGH and passed through
IC35 to the control circuit in the main motor to rotate the main motor. The /MMRDY signal is kept HIGH until the main motor speed reaches the
specified rpm, and passed to the CPU.
(7) Mirror motor circuit
The mirror motor is a stepping motor, and it uses the IC29 and the constant current chopper control IC (SLA7027). For control, the CPU outputs the
drive signal to the IC29 to drive the mirror motor with 1-2 phase excitement.
13 – 12
AR-161
(8) Toner supply motor drive circuit
The IC31 is the motor control IC, which generates the pseudo AC waveform with the pulse signals (TM, TM-) outputted from ASIC, driving the toner
supply motor.
3. CCD PWB
The CCD PWB is provided with the CCD (Charge-Coupled Device), the differential amplifier which amplifies image signals, and the AD convertor
which converts the amplified image signals into digital signals.
The DC power and the pulse supply pins necessary for operating the CCD image sensor are the power source (CD pin), GND (SS pin), shift pulse
(SH pin), transfer pulse (φ 1 pin), (φ 2 pin), reset pulse (/RS pin), clamp pulse (/CP pin), and sampling (/SP pin).
Photo data are stored in the light receiving element at the center of the CCD by the SH signal. Even number pixel data are sent to one of the two
shift registers which are positioned at both ends of the light receiving element, and odd number pixel data are sent to the other shift register. The
time interval between inputting two SH signals is called the photo accumulation time.
The signals are transfered to the register, then to the shift register sequentially by transfer pulses φ 1 and φ 2 and to the floating capacitor section
where electric signals are voltage-converted. Electric charges from the even number pixel shift register and the odd number pixel shift register are
flowed to the floating capacitor section alternatively.
The /RS signal is the reset signal of the CCD output signal. The CCD output is expressed as electric charges equivalently accumulated in the
capacitor. Therefore, to take the CCD output data one pixel by one pixel, one output data must be cleared after it is outputted. The /RS signal is
used for that operation.
The /SP pulse signal is the peak hold signal of the signal voltage.
The output signal from the CCD is amplified by about 4.7 times greater in the differential amplifier circuit in the CCD PWB.
Differential amplification is made for the signal output (OS) and the compensation output (DOS).
The amplified CCD signal output is sent to the clamp circuit. In the clamp circuit, the black level is clamped to 2V at the BCLK signal timing by the
analog switch. The clamped voltage is maintained for one line by the coupling capacitor. The clamped analog signal is impedance-converted and
inputted to the AD convertor.
The analog signal inputted to the AD convertor is converted into 8bit digital data and passed to the PCU PWB.
The machine employs the TCD1501C as the image sensor. The TCD1501C is the reduction type high sensitivity CCD linear sensor of one-output
system. 5000 pixels of 7um x 7um are arranged in line to allow scanning of A3 document at 400dpi (16 lines/mm).