GENERAL PRECA UTIONS REGARDING THE INSTALLATION
AND SERVICE FOR THE COPIER FC-22
The installation and service should be done by a qualified service technician.
1.Transportation/Installation
• When transporting/installing the copier, move it by the casters while lifting the stoppers.
The copier is quite heavy and weighs approximately 200 kg (441 lb), therefore pay full attention
when handling it.
• Be sure to use a dedicated outlet with AC 115V or 120V/20A (220V, 230V , 240V/10A) or more for
its power source.
• The copier must be grounded for safety.
Never ground it to a gas pipe or a water pipe.
• Select a suitable place for installation.
Avoid excessive heat, high humidity, dust, vibration and direct sunlight.
• Also provide proper ventilation as the copier emits a slight amount of ozone.
• To insure adequate working space for the copying operation, keep a minimum clearance of
80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.
2.Service of Machines
• Basically, be sure to turn the main switch off and unplug the power cord during service.
• Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the
damp heater and their periphery.
• Be sure not to touch high-voltage sections such as the chargers, the transfer belt and the highvoltage transformer.
• Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.
• When servicing the machines with the main switch turned on, be sure not to touch live sections
and rotating/operating sections. Avoid exposure to laser radiation.
• Use suitable measuring instruments and tools.
• Avoid exposure to laser radiation during servicing.
− Avoid direct exposure to the beam.
− Do not insert tools, parts, etc. that are reflective into the path of the laser beam.
− Remove all watches, rings, bracelets, etc. that are reflective.
3.Main Service Parts for Safety
• The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly.
4.Cautionary Labels
• During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the
power cord during service”, “Hot area”, “Laser warning label” etc. to see if there is any dirt on
their surface and whether they are properly stuck to the copier.
5.Disposition of Consumable Parts/Packing Materials
• Regarding the recovery and disposal of the copier, supplies, consumable par ts and packing
materials, it is recommended to follow the relevant local regulations or rules.
6.When parts are disassembled, reassembly is basically the reverse of disassembly unless
otherwise noted in this manual or other related documents. Be careful not to reassemble
small parts such as screws, washers, pins, E-rings, star washers in the wrong places.
7.Basically, the machine should not be operated with any parts removed or disassembled.
8.Precautions Against Static Electricity
• The PC board must be stored in an anti-electrostatic bag and handled carefully using a wrist-
band, because the ICs on it may become damaged due to static electricity.
Caution: Before using the wristband, pull out the power cord plug of the copier and make
sure that there are no uninsulated charged objects in the vicinity.
Caution:Dispose of used RAM-ICs (including lithium battery)
according to the manufacturer’s instr uctions.
Vorsicht:Entsorgung des gebrauchten RAM-ICs (inklusive
der Lithium-Batterie) nach Angaben des Herstellers.
In this manual, colors are sometimes described using abbreviations as listed below:
Yellow : YMagenta : MCyan : CBlack : K
1.ADJUSTMENT ITEMS
1.1Error Code List
While the “CLEAR PAPER” or “CALL SERVICE” symbol is flashing, pressing the [CLEAR] key and
the [8] key on the digital keys at the same time shows one of the following error codes on the copyquantity indicator as long as those keys are pressed.
Classification
Paper transport jam inside the copier
Paper feeding jamE11Paper misfeed from the ADU
Paper transport jam
(Paper not reaching the registration
sensor after feeding)
Cover open jamE41Front cover opened during copying
Paper jam in ADU and reversing
area
Error code
E01Paper leading edge not reaching the exit sensor
E02Paper trailing edge not passing the exit sensor
E03Paper remaining inside the copier at power ON
EB7Restart time out error
E12Paper misfeed from the bypass
E13Paper misfeed from the 1st cassette
E14Paper misfeed from the 2nd cassette
E15Paper misfeed from the 3rd cassette
E16Paper misfeed from the 4th cassette
E19Paper misfeed from the LCF
E21Paper transport jam from the LCF
E22Paper transport jam from the 1st cassette
E23Paper transport jam from the 2nd cassette
E24Paper transport jam from the 3rd cassette
E25Paper transport jam from the 4th cassette
E42Side door opened during copying
E43ADU unit pulled out during copying
E45LCF jam access cover opened during copying
E46Bypass unit opened during copying
E50Paper not reaching the ADU
E51Paper not restarting from the ADU stack
E52Paper not reaching the ADU path sensor
E54ADU paper transport jam
Original jam in the ADFE71Original not reaching the aligning sensor
E72Original not reaching the exit sensor
E73Original not passing the exit sensor
E75
Second original not reaching the aligning sensor in 2-in-1 mode
E79Original pre-feeding jam
Paper jam in the sorterEA1Paper transport delay jam
EA2Paper transport stop jam
EA3Paper remaining on the sorter transport path at power on
EA4Sorter front door opened during copying
EA5Staple jam
Paper jam in the sorterEA6Finisher/sorter early-arrival jam (P30) (internal)
EA8Finisher saddle staple jam
EA9Finisher saddle door open
EAAFinisher saddle power ON jam
EABFinisher saddle delivery delay
EACFinisher saddle delivery failure
Special sheet jamEC2OHP sheets used except from bypass and 2nd cassette
EC3OHP sheet used in non-OHP mode
Drive system related service callC05ADU motor rotation abnormal
Paper feeding system related
service call
Scanner related service callC27
C09Black developer motor rotation abnormal
C0AColor developer motor rotation abnormal
C0BDrum motor K rotation abnormal
C0CDrum motor C rotation abnormal
C0DDrum motor M rotation abnormal
C0EDrum motor Y rotation abnormal
C11ADU paper side guide function abnormal
C12ADU paper end guide function abnormal
C131st cassette tray function abnormal
C142nd cassette tray function abnormal
C153rd cassette tray function abnormal
C164th cassette tray function abnormal
C18LCF tray function abnormal
Carriage home position sensor not turning OFF within a fixed time
C28
Carriage home position sensor not turning ON within a fixed time
Communications related service callC57Communications error between Main-CPU and Sorter-CPU
Error code
Thermistor or heater abnormal when warming-up is started
C42Thermistor abnormal after the copier becomes ready
C43Thermistor abnormal during warming-up after abnormality
judgment
C44Heater abnormal during warming-up after abnormality
judgment
C46Heater abnormal (low temperature) after the copier has
become ready
C47Rear thermistor abnormal after the copier has become
ready
C48Heater abnormal (high temperature)
C7Error C7
C5A
C5BMain-CPU signal transmission error to IMC-CPU
C5CMain-CPU signal reception error from IMC-CPU
Communications error between Main-CPU and printer controller
Content
ADF related service callC72Error of aligning sensor automatic adjustment
C73EEPROM initializing error
C74Error of paper exit sensor automatic adjustment
Sorter related service callCB1Delivery motor abnormal
Sorter related service call
Error code
CB2Paper exit motor abnormal
CB3Tray-up motor abnormal
CB4Alignment motor abnormal
CB5Staple motor abnormal
CB6Staple unit shift motor abnormal
CB7Stack detection sensor abnormal
CB8Backup RAM data abnormal
CB9Saddle push motor abnormal
CBASaddle outer staple motor abnormal
CBBSaddle inner staple motor abnormal
CBCSaddle alignment motor abnormal
CBDSaddle guide motor abnormal
CBESaddle folding motor abnormal
CBFSaddle positioning plate motor abnormal
CC0Sensor connector connection abnormal
CC2Micro-switch abnormal
Content
CC1Transport motor rotation abnormal
CC3Bin shift motor rotation abnormal
CC4Guide bar swing motor rotation abnormal
CC5Staple-unit swing motor rotation abnormal
CCAAutomatic adjustment error of bin inside paper sensor
CCCNo power being supplied
Image quality related service callCE1Image quality sensor abnormal (OFF level)
CE2Image quality sensor abnormal (no pattern level)
CE3Abnormal image caused by poor charger
CE4Image quality control test pattern abnormal
CE5Temperature/humidity sensor upper-limit abnormal
CF1Color registation control abnormal
While pressing simultaneously the two digital keys corresponding to the mode you want to set
(for example, [0] and [5]), turn on the main switch [POWER].
<Operation procedure>
01
Power
(All control-panel LEDs light)
START
START
All control-panel LEDs are lit,
and all LCD pixels are turned
on/off repeatedly.
Input/output signals are
checked
A test pattern print is made.
Adjustment of various items
Setting of various items
CLEAR
(Exit)
(Check Key)
CLEAR
(Exit)
[C] or [POWER]
OFF/ON
[POWER] OFF/ON
[POWER] OFF/ON
[POWER] OFF/ON
[POWER] OFF/ON
POWER OFF/ON
or
• Whole control-panel lighting mode (01) :
Notes: 1. During the “Check keys” mode, [CLEAR] alone can do.
During the “Whole control-panel lighting mode”, [CLEAR] can clear the mode.
2. Check keys : Any key with LED (when it is pressed, the LED goes out.)
Any key without LED (When it is pressed, an indication is made in the message area.)
• Test mode (03):Refer to Sec. 1.2.1 and 1.2.2 for test modes.
• Test print mode (04): Refer to Sec. 1.2.3 for test print modes.
• Adjustment mode (05) : Refer to Sec. 1.2.4 for adjustment modes.
• Setting mode (08): Refer to Sec. 1.2.5 for setting modes.
The status of each item can be checked by setting ON/OFF of each [FULL COLOR], [A UT O COLOR],
[ENERGY SAVER], and then pressing each of the corresponding digital key in this test mode 03.
Note: When icon is displa yed with b lack letter on white bac kground, it indicates the v alue is 0, while
in reverse black and white, it indicates the value is 1.
[FULL COLOR]key: OFF, [AUTO COLOR]key: OFF, [ENERGY SAVER]key: OFF
Digital keyIconItemCondition
APaper size switch 0 (1st cassette : Lower)0: Switch is ON
BPaper size switch 1 (1st cassette : Middle lower)0: Switch is ON
CPaper size switch 2 (1st cassette : Middle upper)0: Switch is ON
1DPaper size switch 3 (1st cassette : Upper)0: Switch is ON
ECassette paper empty sensor (1st cassette)1: No paper
FCassette tray-up limit sensor (1st cassette)1: Tray is upper limit
GCassette-feed jam sensor (1st cassette)1: Paper exist
H—
APaper size switch 0 (2nd cassette : Lower)0: Switch is ON
BPaper size switch 1 (2nd cassette : Middle lower)0: Switch is ON
CPaper size switch 2 (2nd cassette : Middle upper)0: Switch is ON
2
3
4
DPaper size switch 3 (2nd cassette : Upper)0: Switch is ON
ECassette paper empty sensor (2nd cassette)1: No paper
FCassette tray-up limit sensor (2nd cassette)1: Tray is upper limit
GCassette-feed jam sensor (2nd cassette)1: Paper exist
H—
APaper size switch 0 (3rd cassette : Lower)0: Switch is ON
BPaper size switch 1 (3rd cassette : Middle lower)0: Switch is ON
CPaper size switch 2 (3rd cassette : Middle upper)0: Switch is ON
DPaper size switch 3 (3rd cassette : Upper)0: Switch is ON
ECassette paper empty sensor (3rd cassette)1: No paper
FCassette tray-up limit sensor (3rd cassette)1: Tray is upper limit
GCassette-feed jam sensor (3rd cassette)1: Paper exist
H—
APaper size switch 0 (4th cassette : Lower)0: Switch is ON
BPaper size switch 1 (4th cassette : Middle lower)0: Switch is ON
CPaper size switch 2 (4th cassette : Middle upper)0: Switch is ON
DPaper size switch 3 (4th cassette : Upper)0: Switch is ON
ECassette paper empty sensor (4th cassette)1: No paper
FCassette tray-up limit sensor (4th cassette)1: Tray is upper limit
GCassette-feed jam sensor (4th cassette)1: Paper exists
H—
ABypass paper-width sensor 0Refer to Table 1.
BBypass paper-width sensor 1Refer to Table 1.
CBypass paper-width sensor 2Refer to Table 1.
5
6ELCF paper supply door switch1: Door is open
7
8
DBypass paper-width size sensor 3Refer to Table 1.
EBypass paper sensor1: No paper
FBypass unit open/close switch1: Unit is open
GSide door open/close switch1: Side door is open
HBypass unit is installed or not0: Unit is installed
ALCF paper empty sensor1: No paper
BLCF lower-limit sensor1: Tray limit (lower)
CLCF tray-up sensor1: Tray limit (upper)
DLCF tray-down switch0: Switch is ON
FLCF is installed or not0: LCF is installed
GADU motor rotation status0: Normal rotation
(Motor is rotating by 03 Output mode)
HADU unit is installed or not0: ADU unit is installed
AADU paper jam switch1: Paper exist
BADU paper empty switch0: No paper
CADU end switch1:
DADU side switch1:
E—
FTotal counter is installed or not0: Total counter is installed
GKey copy counter is installed or not0: Key copy counter is installed
H—
ADeveloper removal shutter home position sensor0: Shatter is closed
B—
CTransfer belt unit is installed or not0: Unit is installed
D—
EColor developer motor rotation status0: Normal rotation
(Motor is rotating by 03 Output mode)
FBlack developer motor rotation status0: Normal rotation
(Motor is rotating by 03 Output mode)
GTransfer belt limit switch0:
HTransfer belt home position switch0:
End guide is positioned at home position
Side guide is positioned at home position
Transfer belt is blac k mode position
Transfer belt is color mode position
AExternal printer controller power ON/OFF0: Controller power ON
B—
C—
9
0
DFront-cover switch1: Front cover is open
EOHP center sensor0: Opaque paper is installed
F—
GRegistration sensor1: Paper exist
HIPC-IF board (Sorter installation kit) is installed or not0: Board installed
AADU path sensor1: Paper exist
B—
CExit sensor1: Paper exist
DPaper-exit unit open/close switch1: Paper-exit unit is open
EToner bag limit sensor1: Used toner full
F—
G—
H—
Table 1. Relation between bypass paper-width sensor status and paper width size.
[FULL COLOR]key: OFF, [AUTO COLOR]key: OFF, [ENERGY SAVER]key: ON
Digital keyIconItemCondition
A—
B—
C—
1
2
3
4
D—
E—
F—
G—
H—
ADeveloper cartridge Y is installed or not0: Cartirdge is installed
BDeveloper cartridge M is installed or not0: Cartirdge is installed
CDeveloper cartridge C is installed or not0: Cartirdge is installed
DDeveloper cartridge K is installed or not0: Cartirdge is installed
EProcessing unit is installed or not0: Unit is installed
FFuser unit is installed or not0: Unit is installed
G—
H—
AWire cleaner home position switch Y0:
BWire cleaner home position switch M0:
CWire cleaner home position switch C0:
DWire cleaner home position switch K0:
EWire cleaner limit switch Y0:
FWire cleaner limit switch M0:
GWire cleaner limit switch C0:
HWire cleaner limit switch K0:
A—
B—
C—
D—
E—
F—
G—
H—
Cleaning pad is positioned at home position.
Cleaning pad is positioned at home position.
Cleaning pad is positioned at home position.
Cleaning pad is positioned at home position.
Cleaning pad is positioned at limit position.
Cleaning pad is positioned at limit position.
Cleaning pad is positioned at limit position.
Cleaning pad is positioned at limit position.
D—
E—
F—
G—
H—
A—
B—
C—
D—
E—
F—
GFront cover, paper-exit unit open/close check1: Cover/unit open
H
Polygonal motor rotation status (Motor is rotating by 03 Output mode)
0: Normal rotation
Thermistor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
[FULL COLOR]key: OFF, [AUTO COLOR]key: ON, [ENERGY SAVER]key: OFF
Digital keyIconItemCondition
1—Lower fuser roller thermistor (rear) check
2—Temperature sensor check
3—Humidity sensor check
4—Drum thermistor Y check
5—Drum thermistor M check
6—Drum thermistor C check
7—Drum thermistor K check
8——
9——
0——
Thermistor output value is displayed with 8 bit.
Sensor output value is displayed with 8 bit.
Sensor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
Thermistor output value is displayed with 8 bit.
[FULL COLOR]key: ON, [AUTO COLOR]key: OFF, [ENERGY SAVER]key: OFF
Digital keyIconItemCondition
1—Auto-toner sensor Y
2—Auto-toner sensor M
3—Auto-toner sensor C
4—Auto-toner sensor K
5——
6——
7——
8——
9——
0——
Sensor output value is displayed with 8 bit.
Sensor output value is displayed with 8 bit.
Sensor output value is displayed with 8 bit.
Sensor output value is displayed with 8 bit.
<Operation procedure>
03
POWER
POWER OFF/ON
Note: After initialization, the copier goes into the test mode.
START
(Exit)
(
FULL COLOR
AUTO COLOR
ENERGY SAVERDigital keys
)
(LCD ON)
Note: When icon is displayed with white letter on black background on the control panel,
Output signal status can be checked by inputting the following code according to this test mode 03.
CodeFunctionCodeFunctionProcedure
150All output OFF1
101
Drum motor and transfer belt motor rotation with normal running speed ON
102
Drum motor and transfer belt motor rotation with OHP copying speed (low) ON
103Paper feed motor ON153Code No. 103 function OFF1
104Fuser motor ON154Code No. 104 function OFF1
105Color developer motor ON155Code No. 105 function OFF1
106Black developer motor ON156Code No. 106 function OFF1
107Registration clutch ON157Code No. 107 function OFF1
108Used-toner transport motor ON158Code No. 108 function OFF1
109ADU motor ON159Code No. 109 function OFF1
110Toner motor (Y) ON160Code No. 110 function OFF1
111T oner motor (M) ON161Code No. 111 function OFF1
112Toner motor (C) ON162Code No. 112 function OFF1
113Toner motor (K) ON163Code No. 113 function OFF1
114Image quality sensor shutter solenoid ON164Code No. 114 function OFF1
130Polygonal motor standby speed ON180Code No. 130 function OFF1
131Polygonal motor normal speed ON181Code No. 131 function OFF1
132Image quality sensor LED ON182Code No. 132 function OFF1
133Color registration sensor LED (front) ON183Code No. 133 function OFF1
134Color registration sensor LED (rear) ON184Code No. 134 function OFF1
135
Image quality sensor mode switching ON (Black mode)
2011st cassette feed clutch ON/OFF3
2022nd cassette feed clutch ON/OFF3
2033rd cassette feed clutch ON/OFF3
2044th cassette feed clutch ON/OFF3
205Feed path clutch ON/OFF2
206Bypass feed clutch ON/OFF3
2071st cassette tray-up motor ON (tray goes up)2
2082nd cassette tray-up motor ON (tray goes up)2
2093rd cassette tray-up motor ON (tray goes up)2
2104th cassette tray-up motor ON (tray goes up)2
211Paper-exit gate solenoid ON/OFF3
212Total counter count up2
213Ozone exhaust fan motor ON/OFF3
214Fuser exhaust fan motor speed Low/High3
151Code No. 101 function OFF1
152Code No. 102 function OFF1
261Discharge LED (M) ON/OFF3
262Discharge LED (C) ON/OFF3
263Discharge LED (K) ON/OFF3
280Laser (Y) ON/OFF3
281Laser (M) ON/OFF3
282Laser (C) ON/OFF3
283Laser (K) ON/OFF3
300Carriage fan motor rotation when standby (low speed) ON/OFF3
301Carriage fan motor rotation when running (high speed) ON/OFF3
302SCM fan motor rotation speed Low/High3
304Scanner exposure lamp ON/OFF4
331ADF pick-up roller rotation ON/OFF3
332ADF aligning roller rotation ON/OFF3
333ADF transport-belt CW rotation ON/OFF3
334ADF transport-belt CCW rotation ON/OFF3
351Scan motor (carriage 1 reciprocating)3
352Document motor (indicator 1 reciprocating)3
353ADF single-sided original feeding3
354ADF two-sided original feeding3
355ADF original exiting3
356ADF 2 in 1 original feeding3
In the adjustment mode 05, the following adjustment items can be corrected, changed, or checked.
*In code No. column, number after hyphen means sub-code.
Code
1041281~255
Scanner (secondary scanning) copy length re-
Description/Mode
production ratio adjustment.
Default
Acceptable
Value
When the value increases by 1, the
reproduction ratio in the secondary
scanning direction (vertical paper
feeding direction) increases by
approx. 0.1522%.
10512885~171 When the value increases by 1, the
Scanner (secondary scanning) start position
deviation
image shifts by approx. 0.1213mm
toward the trailing edge of the paper.
106For regular1805~251When the value increases by 1, the
CCD primary scanning star t
position deviation
copy modeimage shifts by approx. 0.042mm
toward the front side of the paper
(machine).
108For whole-area1335~251When you input a value, which is
copy mode47steps (equivalent to2mm)
smaller than the set value of [106],
the rear original edge and thefront
copy edge match (0.042mm/step).
135 RADF original stop position (single-sided)80~15Changes the position where the
136 RADF original stop position80~15original stops.When the value in-
(reverse side of two-sided original)creases by 1, the original stop po-
sition shifts by 1 mm awa y from the
original stopper.
137 RADF sensor automatic adjustment and––By pressing the START key, WAIT
EPROM Initializationis displayed while the automatic
adjustment is performed.
Perform RADF EPROM Initializa-
tion when EPROM, RADF logic
PWA or sensors are replaced.
142 RADF 2-in-1 gap adjustment80~15When the value increases by 1, the
cuit
204K–0~255
221Color (Y, M, C)–0~255
213 Auto toner output value00~1023 Auto toner output v alue is displayed.
223Y1300~255
Developer bias DC (–)
224M1300~255
output adjustment
225C1300~255
226K
241Y1200~255
Main
charger grid bias
242M1200~255
output adjustment
243C1200~255
244
Automatic adjustment of the
245
auto-toner circuit
(Without automatic filling of
developer material)
246
247
248
249
250
252-0
Main charger bias
252-1
output voltage 1 (lower)
252-2
252-3
253-0
Main charger bias
253-1
output voltage 2 (upper)
253-2
253-3
257-0
Developer bias DC (–)
257-1
output voltage 1 (lower)
257-2
257-3
258-0
Developer bias DC (–)
258-1
output voltage 2 (upper)
258-2
258-3
Description/Mode
K1160~255
All
(C, M, Y, K)
Y
M
C
K
Color
(Y, M, C)
Y2500~999
M2500~999
C2500~999
K2500~999
Y9000~999
M9000~999
C9000~999
K9000~999
Y1000~999
M1000~999
C1000~999
K1000~999
Y7000~999
M7000~999
C7000~999
K7000~999
Acceptable
Default
1250~255
Value
0~255
–
0~255
–
0~255
–
0~255
–
0~255
0~255
–
0~255
–
After filling the developer from the developer cartridge (approx. 2.5min.),
auto-toner sensor output is adjusted
(approx. 2min.) to set in the range of
4.00-4.33V. (As the value increases,
the sensor output increases.)
As the value increases, the transformer
output increases. The adjustment v alue
becomes effective only when the setting
mode (08-400, 401, 409) is 0 (disabled).
As the value increases, the transformer
output increases. The adjustment v alue
becomes effective only when the setting
mode (08-400, 401, 409) is 0 (disabled).
Auto-toner sensor output is
adjusted (approx. 2 min.) to set
in the range of 4.00~4.33V. (As
the value increases, the sensor
output increases.)
Actual output voltage of main
charger grid bias. After replacing
the main high-voltage transformer,
input the value according to the
supplementary data sheet.
Actual output voltage of developer
bias. After replacing the main highvoltage transformer , input the value
according to the supplementary
The bias value of the transfer roller
is set. The higher the value, the
larger the transformer output becomes. The adjustment value becomes effective only when the setting mode (08-400, 401, 409) is 0
(disabled).
Actual output voltage of transfer
roller bias. After replacing the transfer transformer, input the value according to the supplementary data
sheet.
The bias value of the transfer roller
is set. The higher the value, the
larger the transformer output becomes. The adjustment value becomes effective only when the setting mode (08-400, 401, 409) is 0
(disabled).
ning direction (Fine adjustment of polygonal
motor rotation speed)
1209~1235
Value
The developer material in the developer unit is removed into the
toner bag.
When the value increases by 1, the
reproduction ratio in the primary
scanning direction (horizontal pa-
Contents
per feeding direction) decreases by
approx. 0.082%. (If the v alues of this
code 400 is changed, the values of
code 05-401, 402, 403, 404 and
474 are optimized.)
Reproduction ratio adjustment of secondary
4011355
scanning direction (Fine adjustment of transfer
belt motor rotation speed)
1327~1382
When the value increases by 1, the
reproduction ratio in the secondary
scanning direction (vertical paper
feeding direction) decreases by
approx. 0.074%. (If the v alues of this
code 401 is changed, the values of
code 05-401, 402, 403, 404 and
474 are optimized.)
402 Fine adjustment of fuser motor rotation speed 3794 0~65535 When the value increases by 1, the
rotation speed of fuser motor decreases by 0.026%.
403 Fine adjustment of drum motor rotation speed 1700 0~65535 When the value increases by 1, the
rotation speed of the drum motors
(Y,M,C,K) decreases by 0.059%.
404 Fine adjustment of feed motor rotation speed4289 0~65535 When the value increases by 1, the
rotation speed of the paper feed
motor decreases by 0.023%.
406 Feed motor speed adjustment––The paper transport speed of reg-
istration roller in relation to the image printing speed is set at the optimum value. (If the value of this
code 406 is performed, the value
of code 05-404 is optimized.)
407 Color registration control forced performing––Performs the color registration con-
trol.
Correction of fuser motor rotation speed in the
40800~20In this thick paper 3 mode, when
thick paper 3 mode
the value is increased by 1, the
fuser motor rotation speed is decreased by 0.026%.
(margin) adjustment. When the
value increases by 1mm, the void
in the trailing edge of paper feed
direction decreases by approx.
0.042mm.
Paper alignment
4391st250~40
(paper buckle) at
440cassette250~40
the main registra-
4412nd250~40
tion roller
442cassette250~40
4433rdLong size250~40
444cassette Short size250~40
4454thLong size250~40
446cassette Short size250~40
447ADULong size250~40
Long size
Short size
Long size
Short size
When the value increases by 1,
the aligning (paper buckle)
increases by approx. 0.8mm.
*Long size:
Paper length 330 mm and longer
(A3/LD/A3 wide)
Short size:
Paper length 220 mm to 329 mm
448Short size250~40
449LCF180~40
450Bypass feed350~40
451Thick paper 2 mode350~50
452Thick paper 3 mode350~50
461 Color registration status display00~255The value of Y (0) shows the status
of color registration sensor error. 0
or 16 or above: Normal
1-14:
Data abnormal (sensor normal)
15: Color registration pattern reading error
Primary-scanning data write start position
470K1000~255When the value increases by 1, the
adjustment
image shifts by approx. 0.042mm
toward the right side of paper feed
direction.
Secondary-scanning data write start position ad-
47481~15When the value increases by 1, the
justment (Printer and Test print mode)
image shifts by approx. 0.6mm toward the leading edge of paper feed
direction.
518 Density adjustment; density curve selection,00~2551
monochrome
519 Density adjustment; density curve selection,00~2551
monochrome
520 Density adjustment; density curve selection,00~2551
monochrome
521 Density adjustment; density curve selection,00~2551
monochrome
522 Density adjustment; density curve selection,00~2551
monochrome
523 Color mode black text γ curve set selection00~2551
524 Color mode black text γ curve set selection00~2551
525 Color mode black text γ curve set selection00~2551
526 Monochrome mode black text
γ
curve set00~2551
selection
527 Monochrome mode black text
γ
curve set0~2551
selection
γ
528 Monochrome mode black text
curve set0~2551
selection
529 Monitor patch output ON/OFF switching0~2551
530 Filter coefficient set selection table–(0~99)*624
531 Scanner characteristic R for filter selection0~81
532 Scanner characteristic G for filter selection0~81
533 Scanner characteristic B for filter selection0~81
534 Scanner correction color conversion matrix0~15
selection
535 Basic color conversion matrix selection, type A 0~2551
536 Basic color conversion matrix selection, type B 0~2551
537 Basic color conversion matrix selection, type C 0~2551
538 Basic color conversion matrix selection, type D 0~2551
539 Operation of pre-scan unit only–1
540 Operation equivalent to normal copying–1
544 Automatic adjustment of scanner correction––
color conversion matrix
545 Selection of scanner correction color00:3 x 4 1:3 x 30
conversion matrix type
546 Indication of scanner correction color––
conversion patch read data
547 Indication of scanner correction color–
616 For paper size : Maximum value adjustment for 2550~2551
OHP
617 For ID : Full color non-text area (Y)2550~2551
618 For ID : Full color non-text area (M)2550~2551
619 For ID : Full color non-text area (C)2550~2551
620 For ID : Full color non-text area (K)2550~2551
621 Calculation results indication for
γ
correction–8bit*256*44
table for 2 pixels (For user automatic gradation(CMYK)
correction)
622 Calculation results indication for
γ
correction–8bit*256*44
table for 3 pixels (For user automatic gradation(CMYK)
correction)
658 Total hue adjustment1280~2551
659 Total hue adjustment1280~2551
660 Total hue adjustment1280~2551
661 Total hue adjustment1280~2551
662 Total luminance adjustment1280~2551
663 Total luminance adjustment1280~2551
664 Total luminance adjustment1280~2551
665 Total luminance adjustment1280~2551
666 Total luminance adjustment1280~2551
667 Total saturation adjustment1000~2551
668 Total saturation adjustment1000~2551
669 Total saturation adjustment1000~2551
670 Total saturation adjustment1000~2551
671 Total saturation adjustment1000~2551
672 Differential threshold (R-G) for ACS00~2551
673 Differential threshold (G-B) for ACS00~2551
674 Differential threshold (B-R) for ACS00~2551
675 Judgement threshold for ACS 10400~255When the value increases, originals1
tend to be judged as monochrome,
and when the value decreases, they
tend to be judged as color in
auto-color mode.
676 Indication of results for ACS–2
677 Outputting of results for ACS00~11
678 AI mode settingDiscrimination00~4Operation mode of discrimination
settingis changed in AI mode.
0: Standard (for regular)
1: Photograph priority
2: Only judgement of original type
3: Only judgement of original type
with photograph priority
4: Discrimination is not performed
in AI mode.
679 Macro recognition : Pre-process text threshold00~2551
adjustment
681 Macro recognition : Patch area recognition00~2551
When the value increases, the image becomes sharper. When the
value decreases, the image becomes softer. The smaller the value,
the fewer the moire becomes .
* 0 in default is equivalent to 16
When the value increases, the image becomes sharper. When the
value decreases, the image becomes softer. The smaller the value,
the fewer the moire becomes .
* 0 in default is equivalent to 16
ON/OFF
757 Fixed “black” ratio adjustment, type A00~2551
758 Fixed “black” ratio adjustment, type B00~2551
759 Fixed “black” ratio adjustment, type C00~2551
760 Fixed “black” ratio adjustment, type D00~2551
761 “Black” table adjustment, type A00~771
762 “Black” table adjustment, type B00~771
763 “Black” table adjustment, type C00~771
764 “Black” table adjustment, type D00~771
765 “Black” calculation reference amount10: Difference between maximum1
specification, type Aand minimum;
1: Minimum
766 “Black” calculation reference amount10: Difference between maximum1
specification, type Aand minimum;
1: Minimum
767 “Black” calculation reference amount10: Difference between maximum1
specification, type Aand minimum;
1: Minimum
768 “Black” calculation reference amount10: Difference between maximum1
769 “Black” substitution method specification, type A00:GCR 1:UCR1
770 “Black” substitution method specification, type B00:GCR 1:UCR1
771 “Black” substitution method specification, type C00:GCR 1:UCR1
772 “Black” substitution method specification, type D00:GCR 1:UCR1
773 Color mode, black text γ adjustment1280~2551
774 Color mode, black text γ adjustment1280~2551
775 Color mode, black text γ adjustment1280~2551
776 Monochrome mode, black text γ adjustment1280~2551
777 Monochrome mode, black text γ adjustment1280~2551
778 Monochrome mode, black text γ adjustment1280~2551
779-0
Color balance Y
779-1
adjustment
Text/Photo
779-24
780-04
Text
780-14
780-24
781-04
Printed image
781-14
781-24
782-04
Photo
782-14
782-24
783-04
Map
783-14
783-24
784-0
M
Text/Photo
784-14
784-24
785-04
Text
785-14
785-24
786-04
Printed image
786-14
786-24
787-04
Photo
787-14
787-24
788-04
Map
788-14
788-2
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
Low density
Medium density
High density
821 Light amount adjustment results of image qual-
ity sensor
878 Forced performing of image quality control
879 Automatic initialization of image quality control
Description/Mode
When the light source
is OFF
Acceptable
Default
——
——
Value
—0~1023
—0~1023
—0~1023
—0~1023
—0~255
Contents
Displays the output value of image
quality sensor when the sensor light
source is OFF.
Displays the output value of image
quality sensor when there is no test
pattern on the transfer belt.
Displays the output value of image
quality sensor when a low-density
test pattern is written.
Displays the output value of image
quality sensor when a high-density
test pattern is written.
The sensor's LED light amount adjustment value, for setting the reflected light amount from the belt
surface as the reference value.
Perform the image quality control
Perform the image quality control
and restore the initial value.
Image quality control auto-start
(accumulated print volume)
409 Image quality control 310-1Auto-performing of image quality control
Drum temperature compensation
41010-1Performing drum temperature compensa-
control
Transfer bias temperature and
41310-1Performing transfer bias correction by tem-
humidity correction control
41500-16Accumulated total of CE1, CE2, CE4
Abnormal detection counter Y
(display/0 clearing)
41600-16Accumulated total of CE1, CE2, CE4
Abnormal detection counter M
(display/0 clearing)
41700-16Accumulated total of CE1, CE2, CE4
Abnormal detection counter C
(display/0 clearing)
NameDefault
Allowable
input value
Contents
quality control is started for every print volume set for continuos print (08-453).
0: Disabled
1: Enabled (Set value of 08-453)
the last image quality control, set in 08455, is attained, new image quality control
automatically starts after the current printing job.
0: Disabled
1: Enabled (Setting value of 08-455)
0: Disabled
1: Enabled (Performing 08-410,413)
tion for image quality control.
0: Disabled 1: Enabled
* When ‘Image quality controls 1 and 3 (08400,409)’ are 1(Enabled), this is reflected.
perature and humidity for image quality
control.
0: Disabled 1: Enabled
* When ‘Image quality controls 1 and 3 (08400,409)’ are 1(Enabled), this is reflected.
(Max.16)
* Enabled when ‘Image quality control 3
(08-401)’ is 1(Enabled).
(Max.16)
* Enabled when ‘Image quality control 3
(08-401)’ is 1 (Enabled).
(Max.16)
* Enabled when ‘Image quality control 3
(08-401)’ is 1 (Enabled).
time setting (ready)
Image quality control auto-start
4533000-999Setting print volume (number of sheets) to
print volume setting (continuous
printing)
Image quality control auto-start
455100-30Setting print volume (x 100 sheets) to au-
print volume setting (accumulated print volume)
NameDefault
Allowable
input value
Contents
(Max.16)
* Enabled when ‘Image quality control 3
(08-401)’ is 1 (Enabled).
trol auto-start (ready)
automatically start Image quality control
(continuous printing)
tomatically start Image quality control (accumulated print volume)
480 Paper source priority00-50: A4/LT 1: LCF 2: 1st cassette
3: 2nd cassette 4: 3rd cassette
5: 4th cassette
481 Automatic paper source change10-10: OFF 1:Normal
When 1 is set, a paper source becomes
empty and the same size paper is present
in another source, the machine will automatically switch to that source of paper.
Pre-running rotation of polygonal
48500-1Setting of pre-running rotation of polygo-
motor
491
Out of specified paper size printing00-10: Disabled
nal motor
0:
Low speed rotation (Pre-running rotation)
1: Stop
1: Enabled
505 Paper (plain paper, OHP, thick10: Compatible paper not present;
paper).1: Compatible paper present
Switched according to image
processing
507 Filter setting selection in Fiery00-10: non-filter mode (OFF)
scanning1: filter mode (ON)
558 Start setting of developer10-10: Disabled
material counter image quality1: Image quality control is started on
controleach setting counter (08-559).
559 Start count setting of developer1000-999Image quality control start count is set
material counter image qualitywhen (08-558) is used
control
815 Duplexed print counter00-999999 Display of counter value (Single count for
817 Bypass jam counter00-999999 Accumulated total of E12
818 Registration jam counter00-999999 Jam on paper trailing edge by registration
820 Paper exit jam counter00-999999 Accumulated total of E01, E02
822 ADU counter00-999999 ADU feed counter
NameDefault
Allowable
input value
Contents
every paper size)
roller
Display of counter value (Single count for
every paper size)
824 RADF original counter00-999999 RADF feed counter
Display of counter value (Single count for
every paper size)
825 LCF jam counter00-999999 Accumulated total of E19, E21
826 ADU paper-feed jam counter00-999999 Accumulated total of E11, E54
827 ADU stack jam counter00-999999 Accumulated total of E50, E51, E52
831 Key copy counter function10-31: PPC 2: Printer 3: PPC/Printer
832 1st cassette counter00-999999 Paper feed counter of 1st cassette
Display of counter value (Single count for
every paper size)
833 2nd cassette counter00-999999 Paper feed counter of 2nd cassette
Display of counter value (Single count for
every paper size)
834 3rd cassette counter00-999999 Paper feed counter of 3rd cassette
Display of counter value (Single count for
every paper size)
835 4th cassette counter00-999999 Paper feed counter of 4th cassette
Display of counter value (Single count for
every paper size)
836 1st cassette jam counter00-999999 Accumulated total of E13, E22
837 2nd cassette jam counter00-999999 Accumulated total of E14, E23
838 3rd cassette jam counter00-999999 Accumulated total of E15, E24
839 4th cassette jam counter00-999999 Accumulated total of E16, E25
Drum Y life counter (display/0
84000-65535 Number of printed sheets
✽
clearing)
✽
Drum M life counter (display/0
84100-65535 Number of printed sheets
clearing)
Display of counter value (Code 08-858 is
reflected)/0 clearing
Display of counter value (Code 08-858 is
reflected)/0 clearing
Operation
procedure
group
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
✽ Refer to "Counter function and maintenance chacke list"
When ID codes are registered, copy count will be classified according to each ID code. Copies cannot
be made without entering one of the ID codes registered with digital keys.
1.3 Adjustment Order (Copy Image Related Adjustment)
The diagram below explains the main procedures for image related adjustment.
When replacing components which have other specified instructions for adjustment, those specified
instructions are to be obeyed in priority.
In the following diagram, the solid lines with arro w lead to essential ajustments, while the dotted lines
lead to adjustments to be performed if necessary.
Developer materialProcessing unit (EPU)Transfer/transport unit
Adjustment itemCode in mode 05
1.4 Automatic adjustment of the auto-200-204, 221
toner circuit
▼
▲
▼
1.5 Automatic initialization of image879
quality control
Adjustment itemCode in mode 05
Copy image dimensional adjustment
Adjustment
order
11.6.1 Paper alignment (paper buckle) at the main registration roller439 - 452
21.6.2 Feed motor speed adjustment406
1.6.3
3(a) Reproduction ratio adjustment of primary scanning direction400
Printer
4(b) Primary-scanning data write start position adjustment470
related
5(c) Reproduction ratio adjustment of secondary scanning direction 401
adjustment
6(d) Secondary-scanning data write start position adjustment474
7(Fine adjustment of feed motor rotation speed)*404
8(a) Image distortion adjustment–
1.6.4
9(b) Image skewing adjustment–
Scanner
10(c) Primary-scanning reproduction ratio (scanner)482
related
11(d) Scanner copy length reproduction ratio adjustment104
adjustment
12(e) CCD primary scanning start position deviation106, 108
13(f)
14(g) Scanner (secondary scanning) start position deviation105
15(h) Right margin (Printed page right edge void adjustment)427
16(i) Bottom margin (Printed page trailing edge void adjustment)428
Secondary-scanning data write start position adjustment (Copier)484 - 490
▲
▼
1.7
Automatic adjustment of gamma correction
Adjustment itemCode in mode 05
643
Parts to be replaced
DrumTransfer belt
Main charger wire
Main charger grid
▼
Items
* “Fine adjustment of feed motor rotation speed”
should be adjusted after printer related adjustment.
Code in
mode 05
▼
Image quality adjustment
▼
END
Items
1.8 Density adjustment550 - 589
1.9 Color balance adjustment779 - 789
1.10 Offset amount for processing background698 - 717
1. 4 Automatic Adjustment of the Auto-Toner Circuit
With this copier, the filling and removing of developer material is automatically performed by operation from the control panel. In addition, the auto-toner sensor is automatically adjusted successively
after the automatic filling of developer material.
<Operation procedure>
Note: At the time of unpacking, if developer material is not filled, the steps (3) and (4) below do not need
to be performed.
(1)Remove the toner cartridges.
(2)While pressing [0] and [5] simultaneously , turn the pow er ON. The f ollowing appears on the displa y:
100%AA3
[0] [5]
[POWER]
촞TEST MODE
(3)Input a code with digital keys and press the [START] key.촞The developer material is removed.
Code390 : All developer materials are removed (developer materials Y, M, C and K).
391 : All color developer materials are removed (developer materials Y, M and C).
392 : Only developer material K is removed.
(4)After all developer materials are removed, press the [INTERRUPT] key.
Time required for removingAll developer materials: Approx.10 min.
Color developer materials only : Approx. 6 min.
Developer material K only: Approx. 3 min.
(5)Open the front cover, install the developer cartridge(s) and then close the cover.
* When installing or uninstalling the developer cartridge(s), it is necessary to open and close the
front cover.
(6)Input a code with digital keys and press the [START] key.
Code200 : All developer materials221 : Color developer materials only
Upper line 훾 : Current sensor voltages (V)
Middle line 훿 : Humidity (%)
Lower line 훽 : Target values (V) for adjustment reference v oltages
Note:
• The current sensor voltages (V) shown in 훾 automatically changes, gradually approaching the target values
for adjustment reference voltages shown in 훽.
• Values are displayed only for the developer materials being filled.
(9)In 30 to 60 seconds, the current sensor voltages (V) in 훾 are con verged to those in 훽. The humidity
shown in 훿 disappears, and the sensor output control values (bit values) are shown instead.
<Troubleshooting in auto-toner sensor adjustment> (measures against adjustment error)
Check which color is in adjustment error.
훹
Is the developer unit filled with developer material? (Is the developer cartridge empty?)
NO
촞(1) Check if the shutter seal is removed from the developer cartridge.
(2) Check the toner motor performance, using the following test mode.
Y : 03-110 ON, 03-160 OFF
M: 03-111 ON, 03-161 OFF
C: 03-112 ON, 03-162 OFF
YESK: 03-113 ON, 03-163 OFF
(3) Check if the developer cartridge gears rotate properly.
훹
As for the colors completely adjusted, press [INTERRUPT] to store their adjustment results in memory.
Perform again the adjustment procedure to the color in adjustment error.
05-200: All developers05-201: Developer Y
05-202: Developer M05-203: Developer C
05-204: Developer K05-221: Color developers
훹
Is the adjustment completed?
NO
촞(1) Check if the developer unit is filled with developer material.
(2)
Check if any toner or carrier is stuck on the transf er belt or the drum surf ace at the base of EPU .
NO
촞• Check the high-voltage contacts.
YESReplace disabled parts.
YESReplace EPU.
훹
Perform the adjustment procedure again.
훹
• Main charger wire
• Main charger grid
• Developer bias
훹
Press [INTERRUPT] to store the adjustment results in memory.
There are sever al adjustment items in the copy image dimensional adjustment, as listed belo w. Prior
to this image dimensional adjustment, perform the automatic initialization of image quality control
(code [879] in adjustment mode 05). When adjusting these items, the following adjustment order
should strictly be observed.
Adjustment itemsCode in mode 05
Paper alignment (paper buckle) at the main registration roller439 – 452
Feed motor speed adjustment406
(a) Reproduction ratio adjustment of primary scanning direction400
(Fine-adjustment of polygonal motor rotation speed)
(b) Primary-scanning data write start position adjustment470
(c) Reproduction ratio adjustment of secondary scanning direction401
adjustment
Printer related
( Fine adjustment of feed motor rotation speed)*404
Scanner related adjustment
(Fine-adjustment of transfer belt motor rotation speed)
(d) Secondary-scanning data write start position adjustment474
(a) Image distortion adjustment–
(b) Image skewing adjustment–
(c) Primary-scanning reproduction ratio (scanner)482
(d) Scanner copy length reproduction ratio adjustment104
(e) CCD primary-scanning start position deviation106, 108
(f) Secondary scanning data write start position adjustment (Copier)484 – 490
(g) Scanner (secondary scanning) start position deviation105
(h) Right margin (Printed page right edge void adjustment)427
(i) Bottom margin (Printed page trailing edge void adjustment428
* “Fine adjustment of feed motor rotation speed” should be adjusted after printer related adjustment.
In accordance with the procedure described below , make adjustment of each adjustment item so that
the measured values obtained from test copies satisfy the specification. By pressing the [ENERGY
SAVER] key, immediately after star ting the adjustment mode “05”, single-sided test copying can be
performed (normal copy mode).
<Operation keys><Display>
100%
0
POWER
1
Digital keys
Digital keys
( CLEAR Use to make corrections)
INTERRUPT
ENERGY
START
SET
or
SAVER
START
5
: Input codes.
: Input adjustment
values.
Value ZZZ is stored
replacing values YYY.
Test copy
TEST MODE
100%
TEST MODE
Current adjustment value
100%
TEST MODE
100%
Wait Warming Up
AA3
XXXA3
YYYZZZ
AA3
AA3
Varies with the code “XXX” entered with digital keys.
Code No.
Adjustment value newly input
(If no input, YYY is displayed.)
If the test copy does not
satisfy the specified values,
return to the step 1 and
repeat the adjustment
procedure.
1. 6. 1 Paper alignment (paper buckle) at the main registration roller
If the paper feed roller has prematurely become defective, it is possible to extend its service life, if
necessary , by increasing the aligning amount, as a temporary measure until a replacement becomes
available .
<Operation procedure> (Use codes 439 to 452 in adjustment mode “05”.)
Copier cassettes
Long size
Short size
(1)
1st
cassette
439
440
05
POWER
(Stored in memory)
Digital keys
source code
SET
or
INTERRUPT
2nd
cassette
cassette
441
442
Paper
(Select a paper source)
3rd
443
444
START
4th
cassette
445
446
(Current value displayed)
(2)Check for any transfer v oid or “Z” fold. If a trans-
fer problem is present, try the values in descending order as “31”→“30”→”29"··· until the
transfer void disappears. At the same time,
confirm that any paper jam has not occurred.
Also, when the aligning amount has been in-
ADU
LCF
447
448
ENERGY SAVER
Transfer void
449
(Test copy)
Bypass
feeding
450
Digital keys
(Input a new value.)
START
Thick
paper2
451
Power OFF/ON
Thick
paper3
452
creased, this may increase the scraping sound
which occurs when the paper scrapes on the
“Z” fold
mylar sheet as it is transferred by the registration roller. If this scraping sound is irritating, try reducing the aligning amount.
(3)Do the same for ADU, LCF, bypass feeding,
thick paper 2 and thick paper 3.
Note:
When paper thinner than specified is used, paper jams may occur frequently at the registration section. In this
case, it is advisable to change (or reduce) the aligning amount.
However, if the aligning amount is reduced too much, this could cause the leading edge void to vary adversely.
So, when adjusting the aligning amount, try to choose the appropriate amount while checking the leading edge
void at the same time.
The paper transport speed of the registration roller vis-a-vis the image pirnt speed can be set to the
optimum value.
<Procedure>
(1)While pressing the digital keys [0] and [5] simultaneously, turn the power ON. (Adjustment mode)
(2)Set five sheets of A4-R (LT-R) paper into the bypass tray.
(3)Input [10] and press the [SETTINGS] key to perfor m the continuous printing of five “adjustment
charts” from the bypass tray.
(4)Since the printed sheets of “adjustment charts” are slightly shrunk after being fused, it it required to
wait one or two minutes to cool them for precise adjustment. Then, set those five sheets again into
the bypass tray in the same print direction, with the chart face upward.
(5)Without changing the mode [05], enter [406] and press [START].
While the “adjustment chart” sheets are fed and transported, the pitches in the black belt zone are
read.
(6)The step (5) is to be repeated five times automatically.
The displayed set v alue does not change until the fourth printing round and at the finel fifth round, a
newly set value is displayed.
(7)When a newly set value for aligning is displayed at the fifth round, press the [INTERRUPT] key to
update the set value.
If ERROR is displayed at the second paper feeding, press the [CLEAR] key and return to the step
(2).
(a)Reproduction ratio adjustment of primary scanning direction (Fine adjustment of polygonal motor
rotation speed)
1. While pressing the digital keys [0] and [5] simultaneously, turn ON the power.→(Adjustment mode)
2. Press [1]→[SETTINGS]. (A grid patter n with 10 mm squares illustrated later is printed out. Use A3
(LD) from the 2nd cassette.)
3. Measure the distance A from the first grid line at the rear to the 21st of the grid pattern.
4. Check if the distance A is within 200 ± 0.5 mm or not.
5. If it is not, use the following procedure to change values and repeat the steps 2. to 4. above.
<Procedure>(Adjustment mode)→(Input code [400] with digital keys)→[START]
→(Input a value (acceptable values: 1209 to 1235) with digital keys)
→[SET] icon or [INTERRUPT] key (Stored in memory)
→(Input code [407] with digital keys)→[START]
→Color registration control forced performing
*The larger the adjustment value, the shorter the distance A becomes
(0.082 %/step = 0.164 mm/step).
(b) Primary-scanning data write start position adjustment
1. While pressing the digital keys [0] and [5] simultaneously, turn ON the power.→(Adjustment mode)
2. Press [1]→[SETTINGS]. (A g rid pattern with 10 mm squares is printed out. Use A3 (LD) from the 2nd
cassette.)
3. Measure the distance B from the front edge of the paper to the 1st grid line from the front of the grid
pattern.
4. Check if the distance B is within 5 ± 0.5 mm or not.
5. If it is not, use the following procedure to change values and repeat the steps 2 to 4 above.
<Procedure>(Adjustment mode)→(Input code [470] with digital keys)→[START]
→(Input a value (acceptable values: 0 to 255) with digital keys)
→[SET] icon or [INTERRUPT] key (Stored in memory).
→(Input code [407] with digital keys)→[START]
→Color registration control forced performing
*The larger the adjustment value, the longer the distance B becomes
(0.0423 mm/step).
(c) Reproduction ratio adjustment of secondary scanning direction (Fine adjustment of transfer belt mo-
tor rotation speed)
1. While pressing the digital keys [0] and [5] simultaneously, turn ON the power.→(Adjustment mode)
2. Press [1]→[SETTINGS]. (A grid pattern illustrated later is printed out. Use A3 (LD) from the 2nd
cassette.)
3. Measure the distance C from the 6th to 26th grid lines of the grid pattern.
4. Check if the distance C is within 200 ± 0.5 mm or not.
5. If it is not, use the following procedure to change values and repeat the steps 2 to 4 above.
<Procedure>(Adjustment mode)→(Input code [401] with digital keys)→[START]→(Input a value (ac-
ceptable values: 1327 to 1382) with digital keys)→[SET] icon or [INTERRUPT] key
(Stored in memory).→(Input code [407] with digital keys)→[START]→Color registration
control forced performing
*The larger the adjustment value, the shorter the distance C becomes (0.074 %/step =
0.15 mm/step).
(d) Secondary-scanning data write start position adjustment
1. While pressing the digital keys [0] and [5] simultaneously, turn ON the power.→(Adjustment mode)
2. Press [1]→[SETTINGS]. (The following grid pattern is printed out. Use A3 (LD) from the 2nd cassette .)
3. Measure the distance D from the leading edge of the paper to the 6th grid line of the grid pattern.
4. Check if the distance D is within 55 ± 0.5 mm or not.
5. If it is not, use the following procedure to change values and repeat the steps 2. to 4. above.
<Procedure>(Adjustment mode)→(Input code [474] with digital keys)→[START]→(Input a value (ac-
ceptable values: 0 to 15) with digital keys)→[SET] icon or [INTERRUPT] k e y (Stored in
memory).→(Input code [407] with digital keys)→[START]→Color registration control
forced performing
*The larger the adjustment value, the shorter the distance D becomes (0.6 mm/step).
Note: The reproduction ratio adjustment and the data write start position adjustment in the primary and
secondary scanning directions have a connection as shown below.
1. When [05-400] is adjusted, [05-401, 402, 403, 404 and 474] are automatically adjusted.
2. When [05-401] is adjusted, [05-402, 403, 404 and 474] are automatically adjusted.
3. When [05-406] is adjusted, [05-404] is automatically adjusted.
The following adjustments (c) to (i) should be conducted using Test Chart No. TCC-1. (Ref er to page
1-64.)
(c) Primary-scanning reproduction ratio (Scanner)
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the distance A between M1 and M2 on the copy with a ruler.
5. Check if the distance A is within a range of 200±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 3. to 5. above.
<Procedure>(Adjustment mode) 촞 (Input code [482] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 0 to 255) with digital keys) 촞 [INTERRUPT] (Stored in memory)
(Input code [407] with digital keys) 촞 [START]촞 Color registration control forced performing
* The larger the adjustment value, the shorter the distance A becomes (0.2 mm/step).
(d) Scanner copy length reproduction ratio adjustment
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the distance B between M3 and M4 on the copy with a ruler.
5. Check if the distance B is within a range of 150±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat steps 3. to 5. above.
<Procedure>(Adjustment mode) 촞 (Input code [104] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 0 to 255) with digital keys) 촞 [INTERRUPT] (Stored in memory)
(Input code [407] with digital keys) 촞 [START]촞 Color registration control forced performing
* The larger the adjustment value, the longer the distance B becomes. (0.23 mm/step)
(e) CCD primary-scanning start position deviation
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the distance C from the left edge of the paper to the left-edge mark (5 mm) on the copy with
a ruler.
5. Check if the distance C is within a range of 5±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 3. to 5. above.
<Procedure>(Adjustment mode) 촞 (Input code [106] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 5 to 251) with digital keys) 촞 [INTERRUPT] (Stored in memory)
* The larger the adjustment value, the shorter the distance C becomes (0.042 mm/
step).
7. When the distance C is within the acceptable range, perform the following procedure.
<Procedure>(Adjustment mode) 촞 (Input code [108] with digital keys) 촞 [START] 촞 (Input a setting
value with digital keys, deducting 47 from the value set in the code [106] adjustment
mode 05) 촞 [INTERRUPT] (Stored in memory)
(f) Secondary-scanning data write start position adjustment (Copier)
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the distance D from the upper paper edge to the upper write-start position on the copy with
a ruler.
5. Check if the distance D is within a range of 5±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 3. to 5. above.
* This adjustment should be done for each of the cassettes.
The adjustment order is : 2nd cassette 촞 1st cassette 촞 3rd cassette 촞 4th cassette 촞 Bypass
tray 촞 LCF 촞 ADU.
The adjustment code for each cassette is as follows:
<Procedure>(Adjustment mode) 촞 (Input a code [485 to 490] with digital keys) 촞 [START] 촞 (Input
a value (acceptable values : 0 to 15) with digital keys) 촞 [INTERRUPT] (Stored in
memory)
* The larger the adjustment value, the longer the distance D becomes (0.6 mm/step).
(g) Scanner (secondary scanning) start position deviation
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the distance E from the upper paper edge to the upper mark (10 mm) on the copy with a
ruler.
5. Check if the distance E is within a range of 10±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 3. to 5. above.
<Procedure>(Adjustment mode) 촞 (Input code [105] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 128 to 135) with digital k eys) 촞 [INTERRUPT] (Stored in memory)
* The larger the adjustment value, the longer the distance E becomes (0.12 mm/step).
(h) Right margin (Printed page right edge void adjustment)
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the blank area F to the right of the copy image with a ruler.
5. Check if the blank area F is within a range of 2±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 3. to 5. above.
<Procedure>(Adjustment mode) 촞 (Input code [427] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 0 to 255) with digital keys) 촞 [INTERRUPT] (Stored in memory)
* The larger the adjustment v alue, the larger the b lank area becomes (0.042 mm/step).
1. While pressing the digital keys [0] and [5] simultaneously, turn the power ON. 촞 (Adjustment mode)
2. Place Test Chart No. TCC-1 on the original glass (with the arrow positioned at the left rear side).
3. Press [ENERGY SAVER] 촞 [ST AR T] to make a cop y in the mode of A4 (LT), 100%, full color and text/
photo.
4. Measure the blank area G beneath the copy image with a ruler.
5. Check if the blank area G is within a range of 2.5±0.5 mm or not.
6. If it is not, change values using the following procedure, and repeat the steps 2 to 4 above.
<Procedure>(Adjustment mode) 촞 (Input code [428] with digital keys) 촞 [START] 촞 (Input a value
(acceptable values : 0 to 255) with digital keys) 촞 [INTERRUPT] (Stored in memory)
* The larger the adjustment v alue, the larger the b lank area becomes (0.042 mm/step).
[1] Grid lines: F or adjusting margin (void) and scanner section
[2] YMCK patches: For checking uniformity
[3] Resolution pattern: For checking resolution
[4] Gradation pattern: Gradation pattern of seven colors (Y, M, C, R, G, B and K)
Coverage ratio: 10-100%
For adjusting the halftone reproduction and gray balance
[5] Color registration pattern: For checking color registration
[6] Pictures: For checking color reproduction and moire
[7] Magnification lines: For chec king the magnification error of primary and secondary scan-
ning directions
[8] Center lines: Center lines for A4/LT sizes
[9] Arrow: A mark for placing the chart properly onto the original glass (place it
to the left rear corner of the original glass).
[10] Halftone band: For checking uniformity
[11] White text on the black solid : For checking the reproduction of white text on black solid
[12] Text: For checking reproduction of text
[13] Thin lines: For checking reproduction of the thin lines (line width: 100µm).
[14] Note area: For recording the date, conditions, etc.
When the reproduction of gradation is not appropriate, the gradation reproducibility of all colors Y,
M, C and K can be corrected by performing this automatic adjustment of gamma correction. Check
the image, and if the gradation reproduction is not satisf actory, make this adjustment as described
below.
(2)When any of the following parts has been replaced, be sure to make this adjustment:
• Laser optical unit• Drum• Developer material
(3)When any of the following parts are replaced or adjusted, make a copy and check the image to
determine if the adjustment is necessary:
• Main charger• Transfer belt
Note: Be sure that this adjustment be made after performing the copy image adjustment in “1.5 Auto-
matic Initialization of Image Quality Control” and "1.6 Copy Image Dimensional Adjustment".
CodeAdjustment itemContent
643Automatic adjustment
of gamma correction
<Procedure>
Adjustment of Text or Map mode
(1) While pressing [0] and [5] simultaneously, turn the power ON.
촞
Adjustment mode
(2) Press [4] 촞 [SETTINGS] and output a “P atch chart for gamma
adjustment”.
(3) Place the “Patch chart for gamma adjustment” produced in step
(2), face down onto the original glass, with the side, on which a
black band is present, precisely against the original scale.
(4) Input code [643] with digital keys and press [START].
(5) Input [2] with digital keys, and press [START] and then [INTER-
RUPT] 촞 The scanner reads the original automatically and
<Adjustment of other modes>
(1) While pressing [0] and [5] simultaneously, turn the power ON.
촞
Adjustment mode
(2) Press [5] 촞 [SETTINGS] to output a “Patch char t for gamma
adjustment”.
(3) Place the “Patch chart for gamma adjustment” produced in step
(2), face down onto the original glass, with the side, on which a
black band is present, precisely against the original scale.
(4) Input code [643] with digital keys and press [START].
(5) Input [3] with digital keys, and press [START] and then [INTER-
RUPT]. 촞 The scanner reads the original automatically and
The center density and the density variation controlled by density adjustment keys can be adjusted
as follows.
Copy mode
Color
Text/photoText
modeimage
550551552553554
560561562563564
Full color
570571572573574
580581582583584
555556557558559
565566567568569
Black
575576577578579
585586587588589
Printed
PhotoMap
Items to be adjustedRemarks
Manual-density
center value
Manual-density
“dark” step value
Manual-density
“light” step value
Automatic density
Manual-density
center value
Manual-density
“dark” step value
Manual-density
“light” step value
Automatic density
The larger the value, the
darker the image becomes.
The larger the value, the darker
the “dark” side becomes .
The larger the value, the lighter
the “light” side becomes.
The larger the value, the
darker the image becomes.
The larger the value, the
darker the image becomes.
The larger the value, the darker
the “dark” side becomes .
The larger the value, the lighter
the “light” side becomes.
The larger the value, the
darker the image becomes.
Make a test copy and compare the image obtained with the current settings; if necessary, make adjustment using the following procedure.
<Procedure>
(1)While pressing [0] and [5] simultaneously, turn the power ON.
(2)Input the code of required mode (color mode, copy mode, item to be adjusted) with digital k eys and
press the [START] key.
(3)Input an adjustment value with digital keys (acceptable values: 0 to 255).
(To correct an input value, press the [CLEAR] key.)
(4)Press the [SET] icon or [INTERRUPT] key to store the v alue.→The copier goes back to the standby
state.
(5)Press the [ENERGY SAVER] key and then press the [START] key to make a test copy.
(6)If the desired image density has not been attained, repeat the steps (2) to (5).
The larger the value,
the darker the color to
be adjuted becomes.
Acceptable values: 0 to
255
Make a test copy and compare the image obtained with the current settings; if necessary, make adjustment using the following procedure.
Note: Be sure that this adjustment be made after performing “1.7 Automatic Adjustment of Gamma Correction”.
<Procedure>
(1)While pressing [0] and [5] simultaneously, turn the power ON.
(2)Input the code of required mode (color mode, copy mode, item to be adjusted) with digital k eys and
press the [START] key.
(3)Select the density area to be adjusted with digital keys (0, 1 or 2), and press the [START] key.
0 : Low density (L)1 : Medium density (M) 2 : High density (H)
(4)Input an adjustment value with digital keys.
(To correct an input value, press the [CLEAR] key.)
(5)Press the [SET] icon to have the value memorized. 촞 Returns to the display in (3).
(6)For resetting the value, repeat the steps (3) to (5).
(7)Press the [SET] icon or [INTERRUPT] key to store the value in memory.→The copier goes back to
the standby state.
(8)Press the [ENERGY SAVER] key and then press the [START] key to make a test copy.
(9)If the desired image density has not been attained, repeat the steps (2) to (8).
The density of background and text can be adjusted as follows.
Copy mode
Color
Text/photoText
modeimage
698699700701702
Full color
708709710711712
703704705706707
Black
713714715716717
Printed
PhotoMap
Make a test copy and compare the image obtained with the current settings; if necessary, make adjustment using the following procedure.
Item to be adjustedRemarks
The
Offset value for
background
Offset value for
text
Offset value for
background
Offset value for
text
larger the value, the darker
the background becomes.
The smaller the value, the
darker the text becomes.
The larger the value, the darker
the background becomes.
The smaller the value, the
darker the text becomes.
<Procedure>
(1)While pressing [0] and [5] simultaneously, turn the power ON.
(2)Input the code of required mode (color mode, copy mode, item to be adjusted) with digital k eys and
press the [START] key.
(3)Input an adjustment value with digital keys.
(To correct an input value, press the [CLEAR] key.)
(4)Press the [SET] icon or [INTERRUPT] key to store the value in memory.→The copier goes back to
the standby screen.
(5)Press the [ENERGY SAVER] key and then press the [START] key to make a test copy.
(6)If the desired image density has not been attained, repeat the steps (2) to (5).
The judgment level is adjusted for the automatic identification of whether the original set on the glass is
monochrome or color. Namely, this is to adjust the judgment level used when “Auto color” is selected in
the color mode.
CodeAdjustment itemContent
675Judgment threshold for ACS
The larger the value, the more an original tends to be judged
to be monochrome, and the smaller the value, the more it
tends to be judged to be color.
(a)AI mode discrimination setting
Select the discrimination level in the AI mode as follows:
CodeAdjustment itemContent
678AI mode
Discrimination setting
<Procedure>
(1) While pressing [0] and [5] simultaneously, turn ON the
power.
(2) Input code [678] with digital keys.
(3) Input an appropriate setting value:
0 :Standard (for regular)
1 :Photograph priority
2 :Only judgement of original type
3 :Only judgement of original type with photograph pri-
ority
4 :No AI discrimination
(4) Press [SET] icon or the [INTERRUPT] key to store the
adjustment value.
(b)AI mode time-out setting
Set the maximum processing time allowable during the AI mode. Two kinds of setting are made, one for
originals of A4 or smaller sizes, and the other for originals larger than A4.
Note: In case discrimination does not finish, stop AI mode discrimination and copy in the selected copy mode.
CodeAdjustment itemContent
682AI mode
Time-out setting
<Procedure>
(1) While pressing [0] and [5] simultaneously, tur n ON the
power.
(2) Input code [682] with digital keys.
(3) Input an appropriate setting value:
The setting value should be two digits; the lower digit is
the time-out period (seconds) for A4 original size, and
should be in the range of 1 to 9. The upper digit is the
time-out period for A3 original size, and should be in the
range of 1 to 9. However, time is set in propor tion to
original sizes for originals larger than A4, based on A4
or A3 setting value.
(4) Press [SET] icon or the [INTERRUPT] key to store the
If you want to make cop y images look softer or sharper, perf orm the following adjustment. The adjustment
can be made for each of the color modes and image modes independently.
Text/photo (text area)
Text/photo (photo area)
AI (text area)
AI (photo area)
Text
Printed image
Photo
Map
Text/photo (text area)
Text/photo (photo area)
AI (text area)
AI (photo area)
Text
Printed image
Photo
Map
• The larger the value, the sharper the image
becomes; while the smaller the value, the softer the
image becomes.
• The smaller the value, the less moire tends to
appear.
• The permissible range of values : 0 to 31.
The center value is 16.
However, 0 is equivalent to the center value.
Note: In the text/photo and AI modes, you can make
adjustment for text area and photo area
independently, but in the other modes, you
have to mak e adjustment by compromising
between moire and sharpness.
Make a test copy and compare the image obtained with the current settings; if necessary, make adjustment using the following procedure.
<Procedure>
(1)While pressing [0] and [5] simultaneously, turn the power ON.
(2)Input the code of required mode (color mode, copy mode, items to be adjusted) with digital ke ys and
press the [START] key.
(3)Input an adjustment value with digital keys.
(To correct an input value, press the [CLEAR] key.)
(4)Press the [SET] icon or [INTERRUPT] key to store the value in memory.→The copier goes back to
the standby state.
(5)Press the [ENERGY SAVER] key and then press the [START] key to make a test copy.
(6)If the desired image density has not been attained, repeat the steps (2) to (5).
This machine uses four main high-voltage transformers for charging/development/discharging and one
transfer transformer for transfer/suction.
The main high-voltage transformers (PS-HVT-M-310) are used each for one of the colors Y, M, C and K,
giving a total of four units.
The transfer transformer (PS-HVT-TB-310) supplies high-voltage for the transfer rollers Y, M, C and K
and the suction charger to be used in black mode.
The main high-voltage transformers have the following high-voltage outputs.
CH1: main charger wire
CH2: main charger grid bias
CH3: developer bias
CH4: cleaning blade bias
The transfer transformer has the following high-voltage outputs.
CH1: transfer roller bias (Y)
CH2: transfer roller bias (M)
CH3: transfer roller bias (C)
CH4: transfer roller bias (K)
CH5: suction charger
* CH5 is used in black mode only.
The main high-voltage transformer and transfer transformer for service parts are supplied with the data
sheets to be used for the following setup. Be careful not to lose them.
Output adjustment is performed when the devices are shipped, so under any circumstances, do not
move the resistors fixed to the board.
1.14.2 Settings after replacing main high-voltage transformers
After replacing a main high-voltage transfor mer, input the data stated on the supplementary data sheet
(main charger grid bias, developer bias) according to the procedure below without fail.
<Settings for main charger grid bias>
(1)Turn the power ON while pressing [0] and [5] simultaneously.
(2)Input code 252 and press [START] key.
촞 The lower limit value for main charger grid bias is displayed for each Y, M, C and K.
(3)Input the sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(4)Input a value according to the supplementary data sheet and press either [SET] or [INTERRUPT] ke y .
(5)Input code [253] and press [START] key.
촞 The upper limit value for main charger grid bias is displayed for each Y, M, C and K.
(6)Input the sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(7)Input a value according to the supplementary data sheet and press either [SET] or [INTERRUPT] ke y .
(8)Turn the power OFF.
< Settings for developer bias >
(1)Turn the power ON while pressing [0] and [5] simultaneously.
(2)Input code [257] and press [START] key.
촞 The lower limit value for developer bias is displayed for each Y, M, C and K.
(3)Input sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(4)Input a value according to the supplementary data sheet and press either [SET] or [INTERRUPT] ke y .
(5)Input code [258] and press [START] key.
촞 The upper limit value for developer bias is displayed for each Y, M, C and K.
(6)Input the sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(7)Input a value according to the supplementary data sheet and press either [SET] or [INTERRUPT] ke y .
(8)Turn the power OFF.
1.14.3 Settings after replacing transfer transformer
After replacing a transfer transfor mer, input the data shown on the supplementary data sheet (transfer
bias) according to the procedure below without fail.
<Settings for transfer roller bias>
(1)Turn the power ON while pressing [0] and [5] simultaneously.
(2)Input code [367] and press [START] key.
촞 The lower limit value for transfer bias is displayed for each Y, M, C and K.
(3)Input the sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(4)Input a value according to the supplementary data sheet, and press either [SET] or [INTERRUPT]
key.
* Perform the operation in (3) and (4) for each of Y, M, C and K.
(5)Input code [368] and press [START] key.
촞 The upper limit value for transfer bias is displayed for each Y, M, C and K.
(6)Input the sub-code (0: Y, 1: M, 2: C, 3: K) and press [START] key.
(7)Input a value according to the supplementary data sheet, and press either [SET] or [INTERRUPT]
key.
* Perform the operation in (6) and (7) for each of Y, M, C and K.
(8)Turn the power OFF.
Adjustment tool to use : Doctor-sleeve jig
Adjusting procedure :
(1)Remove the developer unit from the process-
ing unit (EPU), and then remove the developer unit cover and toner-scattering prevention seal holder from the developer unit.
(2)Loosen the 2 screws for fixing the doctor blade
(M3), and insert the gauge “0.60” of the jig
into the gap between the dev eloper sleeve and
the doctor blade to adjust the gap.
Fasten the screws for fixing the doctor blade
after adjusting.
Developer unit
cover
Toner-scattering prevention
seal holder
Screws
Doctor
blade
Gauge “0.60” of the
doctor-sleeve jig
Developer sleeve
(3)Insert the gauge “0.55” of the jig into the gap
between the sleev e and the doctor, and mak e
sure that the gauge can move smoothly in the
front촟촞rear direction. In addition, confirm
that the gauge “0.65” cannot be inserted into
the gap.
Gauge “0.55” of the doctorsleeve jig
Note :
1. When confirming and adjusting the gap between the dev eloper slee v e and the doctor blade , insert the
gauges into the gap after rotating the developer sleeve so that its marking faces the doctor blade.
2. While reinstalling the toner-scattering prevention seal holder, make the slide hooks inserted securely.
3. After reinstalling the toner-scattering prevention seal holder, make sure that each of the side mylar
sheets (one each on the front and rear) is between the 2 urethane rubber sheets.
4. While reinstalling the developer unit cover, make the latches fitted securely.
Since the wires are applied with proper tension by tension springs, there is no need for tension
adjustment.
Note:
Check that the wire tension is identical for both front and rear wires and is properly applied.
(c) Adjusting the positions of carriages 1 and 2
Carriage jigs
Carriage 1
1. Loosen 2 screws (one each on the front and
rear) which are fixing carriage 1 to the wires,
and another 1 screw (on the front) which are
fixing carriage 2 to the wires.
2. Move carriage 2 to the exit side. Insert the carriage jigs into the jig-insertion holes, one each
on the front and rear sides of carriage 2, and
fasten the screw on the front side of carriage 2.
3. While placing the protruding parts of carriage 1
Front sideRear side
against the carriage jigs, fasten carriage 1 to
the wire on both front and rear sides.
(d) Installing the carriage drive wires to the wire pulleys
Winding the wire to the wire pulleys:
1. Fit the 3-mm ball terminal in the center of the
wire into the hole in the wire pulley. The wire
should be positioned so that the part of the wire
with a hook on its crimped side be on the upper
side.
2. Wind the wires onto the wire pulleys on the front
and rear. The number of turns to be wound are
as follows (see the illustrations below):
· One turn on the inside of the boss.
· Six turns on the outside of the boss.
After winding the wires on the pulleys, hold the
wires with wire holder jigs to prevent them from
unwinding.
· Since the lens unit was precisely adjusted at the factory, it must not be readjusted in the field or some
of its components must not be replaced. If necessary, the lens unit should be replaced as a unit.
· While replacing with a new lens unit, never loosen or remove the six screws indicated with arrows
below. They are locked with special paint.
· Use sufficient care when handling the lens unit. Nev er hold the precision-adjusted area of the lens unit.
1. The lens magnification ratio adjustment
should be performed only when the lens
unit is removed or replaced in the field.
2. Before this adjustment, check that the primaryscanning reproduction ratio of the
printer is corrected.
Copied ruler
Actual ruler
1. Place a suitable ruler on the original glass and make a copy of it on A4(LT)-size paper at 100%
reproduction ratio.
2. Compare the copied ruler with the actual ruler to measure the error in the reproduction ratio.
3. Make adjustment so that the distance between each mark of both rulers becomes equal, using the
following procedure.
Note:
After this adjustment, be sure to perform CCD primary scanning deviation adjustment.
<Adjustment procedure>
(1)Remove the original glass, lens cover, damp heater unit and lens shield bracket.
(2)Screw the 2 pins for lens magnification ratio adjustment into the 2 elongated holes in the lens base.
(4)Using the marks on the scanner base as a guide, adjust the lens unit in either forward or backw ard
direction.
The following table shows the error in the reproduction ratio between the copies and actualrulers
compared to be measured, and the amount of adjustment of the lens unit.
Reproduction-ratio error Amount of adjustment
0.1 %0.5 mm
0.2 %0.9 mm
0.3 %1.4 mm
0.4 %1.9 mm
0.5 %2.4 mm
0.6 %2.9 mm
0.7 %3.3 mm
0.8 %3.8 mm
0.9 %4.3mm
1.0 %4.8 mm
Note:
If the adjustment finer than that in the above table is required, perform “Fine adjustment of polygonal
motor rotation speed”.
Marking
For smallerthan-100%
ratios
Exit side
Adjustment
direction
Lens unit
For largerthan-100%
ratios
Feed side
(5)Install the lens cover and original glass, and then make a cop y to confirm the reproduction ratio.
(6)Remove the original glass and lenscover again, and thentighten the 2 screws f or the lens unit to fix
its position.
(7)Remove the 2 pins used for adjusting the lens magnification ratio.
(8)Reinstall the damp heater unit, lens shield bracket, lens cover and original glass.