Option/finisher
FU/D sensor
FU paper delivery
sensor
FU Solenoid
F/UD flap switching
Flicker prevention
FU paper delivery (U)
Toner
sensor M
Toner
sensor C
Toner
sensor Y
Toner
sensor K
Drum phase
sensor Y
Drum phase
sensor K
Lower tier/drawer connector (12)
Upper heater/100V 1kw
Thermostat/upper
Temperature
fuse/upper
Lower heater/100V 1kw
Temperature
fuse/lower
Thermostat/lower
Thermister/lower
Thermister/upper
OCR/new detection
OCR/presence detection spring
Upper heater
621 Fuser heater UA
Lower Heater
621 Fuser heater UB
CN04
CN103
CN02
Heater
output
Safety SW
CN4 CN105
CN102
CN03
CN106
DC5V,3.3V
C91X General Circuit Diagram
24 Drawer connector
CN20
CN44
FUSER
FINISHER
MOTOR
FLICKER
FUDSOL
6
6
6
11
6
CN34
CN12
CN33
CN43
8
CN30
CN14
2
2
3
FANL
TRNL TRN (L)
sensor
Closed turn guide detected
Fan lock detection
Power supply fan
CN6
Photo interrupter
3
Solenoid
Motor
Drawer connector
Photo interrupter
Photo interrupter
Solenoid
Solenoid
Solenoid
CN**
CN104/3 CN106/9
CN107/2
3
3
22
CN**
CN**
CN**
CN**
DUPSG
CN102/13 CN101/4
CN105/22
CN103/7
Motor
Option/Duplex-unit 5V, 24V
Drawer connector (12)
DUPPW
Upper tier/drawer connector (12)
Motor
Asm
Pulse motor (PM type)
Cassette paper
feeding
Paper presence
sensor (photo
interruptor)
Residual paper
sensor
Paper detection
sensor
(photo interruptor)
PJ
PLEV
PSZ
OISGN
OIPWR
OOSGN
OOPWR
CN9/5
CN8/7
CN7/6
CN3/8
CN4/4
CN1/3
CN10/6
CN6/3
CN2/6
MTR
PTSOL
PE
CN5/2
Extension paper feeder controller
Paper size sensor
Option/second paper feeding
Encoder
M head
C head
CN04/14
CN01/8 CN03/18 CN02/30
CN10/24
CN09
CN11/24
CN06/24
CN08/24
CN07/24
CN05/24
CN**
CN**
CN**
CN**
CN**
CN**
CN**
CN**
CN12
CN**
CN**
CN**
CN**
CN16/24
CN14/24
CN15/24
CN13/24
Y head
CN20/24
CN18
CN19/24
CN17/24
K head
CN**
CN**
CN**
CN**
Print head controller
DC Motor
Motor driver asm
Fuser
Sub-frame
Residual toner/kit presencedetection
Transparency
sensor
Transparency
sensor
Residual paper
sensor
Temperature/humidity
sensor
Color (MCY)
ON/OFF
Paper size
sensor
Temperature
sensor
Belt thermister
Paper presence
detection
CN406
CN407
CN409
CN408/2
Sensor cord
Cassette paper presence detection
B U/D
sensor
2nd PW
2ndSG
PE
CNRCL
Color/monochrome drum phase adjustment
Registration
sensor
MPF
sensor
TRM (F)
sensor
FU tray detection
FD paper delivery
PEX motor
asm
FD paper delivery
sensor
Top
Upper left fan
Upper right
fan
Fan lock detection
Eraser M
Eraser C
Eraser Y
Eraser K
Drum static eliminator
Drive
Gear phase
sensor
Color/monochrome gear phase adjustment
Lower the belt for
monochrome printing
BUD clutch
Feeding clutch
Manual feeding
clutch
Cassette paper
feeding solenoid
Standby clutch
Color (MCY) ON/OFF
AC100V 50/60Hz
Power cord
Drum new sensor
M (contact point)
Main switch
Sub-frame R
HVU
Charging, bias, transfer, charged belt
Power supply 1
CNIN
Inlet
CN01
HL/HN
CN106
Drum new sensor
C (contact point)
Drum new sensor
Y (contact point)
Drum new sensor
K (contact point)
DS
CN**
DC24V
AC100V
Heater ON/OFF
MPS
MPSH
6
RIP
CN
CN**
CN14
CN1
CN**
RIP Card
Operation
Panel (U)
(Option)
AC100V
CN39/8
CN41
HDVCLK
CN45/80
FROM
CN50
Printer Controller
CN1
DBG
U3
HVU control
Fixing control
Flicker control
CN10
6
CN3
CN42
15
CN36
CN29
CN2
4
10
CN35/
5
7
CN8
CN25
3
2
2 CN13
CN26
CN46
8
CN51/RF (RIP fan)
3
CN37/13
CN38/4
CN48/18
HD/YK
CN47/30
HD/MC
2
2
CN23
CN16
2
2
CN24
4
2
CN31
4
K
CN19
4
Y
6
CN11
CN22
CN40
4
4
CN7
2
CN15
C
4
CN21
CN18
M
4
4
CN27
4
Large capacity paper feeding
U1
MAIN
Video
motor control
LCF
CN28
3
4
3
3
8
CN49
CN32
CN5
CN17
CN4
CN9
Encoder
MAIN
MOTOR
CN5
CN4
CN2
CN1
CN3
Power Supply 2
Summary of Contents for C91 Series
Page 15: ...Safety information xv 5055 xxx...
Page 50: ...1 34 Service Manual 5055 xxx...
Page 150: ...2 100 Service Manual 5055 xxx...
Page 212: ...3 62 Service Manual 5055 xxx...
Page 216: ...3 66 Service Manual 5055 xxx Path select gate...
Page 246: ...3 96 Service Manual 5055 xxx...
Page 304: ...4 58 Service Manual 5055 xxx 5 Loosen the thumbscrews as shown...
Page 308: ...4 62 Service Manual 5055 xxx 9 Loosen the thumbscrews as shown...
Page 356: ...5 2 Service Manual 5055 xxx Major parts diagram...
Page 358: ...5 4 Service Manual 5055 xxx Sensor and switch locations...
Page 359: ...Locations 5 5 5055 xxx...
Page 360: ...5 6 Service Manual 5055 xxx Component locations...
Page 368: ...5 14 Service Manual 5055 xxx Power source unit 1 board Power source unit 2 board CN106A CN01...
Page 371: ...Locations 5 17 5055 xxx Size sensor board...
Page 373: ...Locations 5 19 5055 xxx Electrical parts layout...
Page 374: ...5 20 Service Manual 5055 xxx Driving parts layout...
Page 375: ...Locations 5 21 5055 xxx Finisher locations...
Page 380: ...5 26 Service Manual 5055 xxx Finisher electrical parts...
Page 382: ...5 28 Service Manual 5055 xxx...
Page 386: ...7 2 Service Manual 5055 xxx Assembly 1 Covers 1 1 3 11 7 13 18 5 16 9 15 2 10 6 17 4 12 8 14 1...
Page 388: ...7 4 Service Manual 5055 xxx Assembly 2 Covers 2 1...
Page 390: ...7 6 Service Manual 5055 xxx Assembly 3 Covers 3 2 4 3 1 2 3...
Page 392: ...7 8 Service Manual 5055 xxx Assembly 4 Covers 4 1...
Page 394: ...7 10 Service Manual 5055 xxx Assembly 5 Covers 5 1...
Page 396: ...7 12 Service Manual 5055 xxx Assembly 6 Upper unit...
Page 398: ...7 14 Service Manual 5055 xxx Assembly 6 continued Upper unit...
Page 402: ...7 18 Service Manual 5055 xxx Assembly 8 Base 2 3 7 5 2 6 4 8 1 2 2 2...
Page 404: ...7 20 Service Manual 5055 xxx Assembly 9 Base 3 1 3 11 7 14 5 15 2 10 6 4 13 8 16 9 10 12 11...
Page 406: ...7 22 Service Manual 5055 xxx Assembly 10 Electrical...
Page 408: ...7 24 Service Manual 5055 xxx Assembly 10 continued Electrical...
Page 410: ...7 26 Service Manual 5055 xxx Assembly 11 Rip board 3 7 5 2 6 4 8 1...
Page 412: ...7 28 Service Manual 5055 xxx Assembly 12 Fuser unit 1...
Page 414: ...7 30 Service Manual 5055 xxx Assembly 13 Cassette 1 2 3...
Page 422: ...7 38 Service Manual 5055 xxx Assembly 16 Duplex unit 1...
Page 426: ...7 42 Service Manual 5055 xxx Assembly 18 High capacity feeder 1 3 11 7 5 9 2 10 6 4 12 8 1...
Page 428: ...7 44 Service Manual 5055 xxx Assembly 19 High capacity feeder 2 11 3 11 7 5 9 2 10 6 4 12 8 1...
Page 430: ...7 46 Service Manual 5055 xxx Assembly 20 High capacity feeder 3 3 7 5 9 2 6 4 8 1 3...
Page 434: ...7 50 Service Manual 5055 xxx Assembly 22 High capacity feeder 5 3 7 5 2 6 4 8 1 2 2 2 1 4 6...
Page 436: ...7 52 Service Manual 5055 xxx Assembly 23 High capacity feeder 6 3 7 5 2 6 4 8 1 7 3 2...
Page 438: ...7 54 Service Manual 5055 xxx Assembly 24 Finisher covers 3 11 7 13 5 9 15 2 10 6 4 12 8 14 1 2...
Page 446: ...7 62 Service Manual 5055 xxx Assembly 27 Finisher feed 2 2 3 7 5 6 4 8 1 7...
Page 452: ...7 68 Service Manual 5055 xxx Assembly 30 Finisher docking 1 3 2 4 1 1...
Page 454: ...7 70 Service Manual 5055 xxx Assembly 31 Finisher docking 2 3 7 5 2 6 4 1 1 1 1 3 3 3 8 8...
Page 466: ...7 82 Service Manual 5055 xxx Plain Washer Tapping Screw Screw...
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