Ricoh D146 User manual

D146/D147/D148/D149/D150
SERVICE MANUAL

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2013 RICOH Americas Corporation. All rights reserved.

The Service Manual contains information
regarding service techniques, procedures,
processes and spare parts of office equipment
distributed by Ricoh Americas Corporation.
Users of this manual should be either service
trained or certified by successfully completing a
Ricoh Technical Training Program.
Untrained and uncertified users utilizing
information contained in this service manual to
repair or modify Ricoh equipment risk personal
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protection.
Ricoh Americas Corporation
WARNING

LEGEND
PRODUCT
CODE COMPANY
LANIER RICOH SAVIN
D146 MP C3003 MP C3003 MP C3003
D147 MP C3503 MP C3503 MP C3503
D148 MP C4503 MP C4503 MP C4503
D149 MP C5503 MP C5503 MP C5503
D150 MP C6003 MP C6003 MP C6003
DOCUMENTATION HISTORY
REV. NO.
DATE
COMMENTS
*
07/2013
Original Printing

SM i D146/D147/D148/D149/D150
D146/D147/D148/D149/D150
TABLE OF CONTENTS
1. PRODUCT INFORMATION......................................................... 1-1
1.1 PRODUCT OVERVIEW............................................................................. 1-1
1.1.1 COMPONENT LAYOUT................................................................... 1-1
Scanner Unit ........................................................................................ 1-2
Laser Exposure Unit............................................................................. 1-3
Image Transfer Unit ............................................................................. 1-4
PCDU................................................................................................... 1-5
Toner Supply / Waste Toner Bottle...................................................... 1-6
Paper Feed Unit................................................................................... 1-7
Duplex Unit........................................................................................... 1-8
By-pass unit ......................................................................................... 1-9
Fusing Unit......................................................................................... 1-10
Paper Transfer / Paper Exit................................................................ 1-11
Air Flow.............................................................................................. 1-12
Drive Unit ........................................................................................... 1-13
Board / Switch.................................................................................... 1-14
1.1.2 PAPER PATH................................................................................. 1-15
1.1.3 DRIVE LAYOUT ............................................................................. 1-18
1.2 MACHINE CODES AND PERIPHERALS CONFIGURATION................. 1-20
1.2.1 DIAGRAM....................................................................................... 1-20
D146/D147 Options (mainly North America)...................................... 1-20
D146/D147 Options (mainly Europe and Asia)................................... 1-23
D148D149 Options (mainly North America)....................................... 1-26
D148/D149 Options (mainly Europe and Asia)................................... 1-29
D150 Options (mainly North America)................................................ 1-32
D150 Options (mainly Europe and Asia)............................................ 1-35
1.3 SPECIFICATIONS................................................................................... 1-38
1.4 GUIDANCE FOR THOSE WHO ARE FAMILIAR WITH PREDECESSOR
PRODUCTS................................................................................................... 1-39
1.4.1 DIFFERENCES FROM PREDECESSOR....................................... 1-39
Scan, LD unit, Paper feed unit ........................................................... 1-39
Duplex, Driving, Main frame............................................................... 1-40
PCDU................................................................................................. 1-40
Toner supplement, Image transfer..................................................... 1-41

D146/D147/D148/D149/D150 ii SM
Fusing ................................................................................................ 1-42
Electrical component.......................................................................... 1-43
1.4.2 NEW FEATURES OF D146/D147/D148/D149/D150...................... 1-43
1.4.3 IMPORTANT NOTICE FOR MACHINE.......................................... 1-44
2. INSTALLATION .......................................................................... 2-1
2.1 INSTALLATION REQUIREMENTS............................................................ 2-1
2.1.1 ENVIRONMENT ............................................................................... 2-1
2.1.2 MACHINE LEVEL............................................................................. 2-2
2.1.3 MACHINE SPACE REQUIREMENTS .............................................. 2-2
2.1.4 MACHINE DIMENSIONS.................................................................. 2-3
2.1.5 POWER REQUIREMENTS .............................................................. 2-4
Input voltage level................................................................................ 2-4
2.2 MAIN MACHINE INSTALLATION.............................................................. 2-5
2.2.1 INSTALLATION FLOW CHART........................................................ 2-5
2.2.2 ACCESSORY CHECK...................................................................... 2-6
2.2.3 INSTALLATION PROCEDURE ........................................................ 2-7
Removal of packing materials and shipping retainers / Removal of PCDU
seal....................................................................................................... 2-7
For machines with preinstalled SPDF: Removal of protective sheet.. 2-14
Toner bottle installation...................................................................... 2-14
Attaching paper output tray parts....................................................... 2-16
Attaching the decals........................................................................... 2-16
Connecting the power cord ................................................................ 2-16
2.2.4 IMAGE QUALITY TEST / SETTINGS............................................. 2-17
Image quality test............................................................................... 2-17
Checking the copy image with the test chart...................................... 2-17
Paper setting...................................................................................... 2-17
Security Function Installation ............................................................. 2-17
2.2.5 MOVING THE MACHINE................................................................ 2-25
2.2.6 TRANSPORTING THE MACHINE.................................................. 2-25
Main Frame........................................................................................ 2-25
2.3 PAPER FEED UNIT PB3160................................................................... 2-26
2.3.1 ACCESSORY CHECK.................................................................... 2-26
2.3.2 INSTALLATION PROCEDURE ...................................................... 2-26
2.4 PAPER FEED UNIT PB3150................................................................... 2-30
2.4.1 ACCESSORY CHECK.................................................................... 2-30
2.4.2 INSTALLATION PROCEDURE ...................................................... 2-30
2.5 LCIT PB3170 ........................................................................................... 2-33
2.5.1 ACCESSORY CHECK.................................................................... 2-33

SM iii D146/D147/D148/D149/D150
2.5.2 INSTALLATION PROCEDURE ...................................................... 2-33
Changing the paper size .................................................................... 2-36
2.6 LCIT RT3030 ........................................................................................... 2-39
2.6.1 ACCESSORY CHECK.................................................................... 2-39
2.6.2 INSTALLATION PROCEDURE ...................................................... 2-39
Changing the Paper Size ................................................................... 2-43
2.7 CASTER TABLE TYPE M3...................................................................... 2-45
2.7.1 ACCESSORY CHECK.................................................................... 2-45
2.7.2 INSTALLATION PROCEDURE ...................................................... 2-45
2.8 PLATEN COVER PN2000 ....................................................................... 2-47
2.8.1 ACCESSORY CHECK.................................................................... 2-47
2.8.2 INSTALLATION PROCEDURE ...................................................... 2-48
2.9 ARDF DF3090 ......................................................................................... 2-50
2.9.1 ACCESSORY CHECK.................................................................... 2-50
2.9.2 INSTALLATION PROCEDURE ...................................................... 2-51
When feeding thin paper.................................................................... 2-54
2.10 SPDF DF3080.................................................................................... 2-55
2.10.1 ACCESSORY CHECK.............................................................. 2-55
2.10.2 INSTALLATION PROCEDURE................................................. 2-56
Attaching the SPDF............................................................................ 2-56
Attaching the Sub IPU / Replacing the BCU....................................... 2-59
Set serial number on new BCU.......................................................... 2-66
Adjust SP Settings ............................................................................. 2-66
2.11 BRIDGE UNIT BU3070...................................................................... 2-68
2.11.1 ACCESSORY CHECK.............................................................. 2-68
2.11.2 INSTALLATION PROCEDURE................................................. 2-68
2.12 1 BIN TRAY BN3110.......................................................................... 2-73
2.12.1 ACCESSORY CHECK.............................................................. 2-73
2.12.2 INSTALLATION PROCEDURE................................................. 2-73
2.13 INTERNAL SHIFT TRAY SH3070...................................................... 2-79
2.13.1 ACCESSORY CHECK.............................................................. 2-79
2.13.2 INSTALLATION PROCEDURE................................................. 2-79
2.14 SIDE TRAY TYPE M3........................................................................ 2-83
2.14.1 ACCESSORY CHECK.............................................................. 2-83
2.14.2 INSTALLATION PROCEDURE................................................. 2-84
2.15 BOOKLET FINISHER SR3170 (D688)/ FINISHER SR3160 (D689).. 2-87
2.15.1 ACCESSORY CHECK.............................................................. 2-87
2.15.2 INSTALLATION PROCEDURE................................................. 2-88
Auxiliary Tray ..................................................................................... 2-93

D146/D147/D148/D149/D150 iv SM
2.16 PUNCH UNIT PU3060....................................................................... 2-94
2.16.1 ACCESSORY CHECK.............................................................. 2-94
2.16.2 INSTALLATION PROCEDURE................................................. 2-95
2.17 BOOKLET FINISHER SR3150 / FINISHER SR3140....................... 2-104
2.17.1 ACCESSORY CHECK............................................................ 2-104
2.17.2 INSTALLATION PROCEDURE............................................... 2-105
2.18 PUNCH UNIT PU3050..................................................................... 2-111
2.18.1 ACCESSORY CHECK............................................................ 2-111
2.18.2 INSTALLATION PROCEDURE............................................... 2-111
2.19 INTERNAL FINISHER SR3130........................................................ 2-121
2.19.1 ACCESSORY CHECK............................................................ 2-121
2.19.2 INSTALLATION PROCEDURE............................................... 2-122
2.20 PUNCH UNIT PU3040..................................................................... 2-130
2.20.1 ACCESSORY CHECK............................................................ 2-130
2.20.2 INSTALLATION PROCEDURE............................................... 2-130
2.21 KEY COUNTER BRACKET TYPE M3............................................. 2-136
2.21.1 INSTALLATION PROCEDURE............................................... 2-136
2.22 OPTIONAL COUNTER INTERFACE UNIT TYPE A........................ 2-138
2.22.1 INSTALLATION PROCEDURE............................................... 2-138
Key Counter..................................................................................... 2-138
2.23 INTERNAL OPTIONS ...................................................................... 2-140
2.23.1 LIST OF SLOTS...................................................................... 2-140
D148/D149/D150 ............................................................................. 2-140
D146/D147....................................................................................... 2-141
2.24 IEEE 1284 INTERFACE BOARD TYPE A ....................................... 2-142
2.24.1 INSTALLATION PROCEDURE............................................... 2-142
2.25 IEEE 802.11A/G/N INTERFACE UNIT TYPE M2 ............................ 2-144
2.25.1 ACCESSORY CHECK............................................................ 2-144
2.25.2 INSTALLATION PROCEDURE............................................... 2-144
Attaching the boards........................................................................ 2-145
Attaching the antenna...................................................................... 2-146
2.25.3 SETTINGS.............................................................................. 2-146
Check the connection of the wireless LAN interface........................ 2-146
2.26 BLUETOOTH INTERFACE UNIT TYPE D....................................... 2-148
2.26.1 ACCESSORY CHECK............................................................ 2-148
2.26.2 INSTALLATION PROCEDURE............................................... 2-148
2.27 FILE FORMAT CONVERTER TYPE E ............................................ 2-150
2.27.1 ACCESSORY CHECK............................................................ 2-150
2.27.2 INSTALLATION PROCEDURE............................................... 2-150

SM v D146/D147/D148/D149/D150
2.28 DATA OVERWRITE SECURITY UNIT TYPE H (D377)/ I (D362).... 2-152
2.28.1 OVERVIEW............................................................................. 2-152
2.28.2 COMPONENT LIST ................................................................ 2-152
2.28.3 BEFORE YOU BEGIN THE PROCEDURE............................. 2-153
Seal Check and Removal................................................................. 2-154
2.28.4 INSTALLATION PROCEDURE............................................... 2-155
2.28.5 CONFIGURING “AUTO ERASE MEMORY” (PERFORMED BY THE
CUSTOMER)......................................................................................... 2-156
2.29 COPY DATA SECURITY UNIT TYPE G.......................................... 2-159
2.29.1 ACCESSORY CHECK............................................................ 2-159
2.29.2 INSTALLATION PROCEDURE............................................... 2-159
2.29.3 SETTINGS (TO BE DONE BY THE USER)............................ 2-161
Equipment administrator settings..................................................... 2-161
2.30 IMAGEABLE AREA EXTENSION UNIT TYPE M3 .......................... 2-162
2.30.1 ACCESSORY CHECK............................................................ 2-162
2.30.2 INSTALLATION PROCEDURE............................................... 2-162
When you forgot to change the SP .................................................. 2-165
2.31 OCR UNIT TYPE M2........................................................................ 2-166
2.31.1 ACCESSORY CHECK............................................................ 2-166
2.31.2 SEARCHABLE PDF FUNCTION OUTLINE............................ 2-166
2.31.3 INSTALLATION PROCEDURE............................................... 2-167
2.31.4 RECOVERY PROCEDURE .................................................... 2-169
2.32 SD CARD OPTION .......................................................................... 2-170
2.32.1 SD CARD SLOTS ................................................................... 2-170
2.32.2 LIST OF SLOTS USED........................................................... 2-170
2.33 SD CARD APPLI MOVE .................................................................. 2-171
2.33.1 OVERVIEW............................................................................. 2-171
2.33.2 MOVE EXEC........................................................................... 2-172
2.33.3 UNDO EXEC........................................................................... 2-174
2.34 BROWSER UNIT TYPE M4/M3....................................................... 2-175
2.34.1 ACCESSORY CHECK............................................................ 2-175
2.34.2 INSTALLATION PROCEDURE............................................... 2-175
To update EXJS............................................................................... 2-178
When checking the version of EXJS................................................ 2-180
Browser unit uninstallation procedure.............................................. 2-180
2.34.3 SETTINGS.............................................................................. 2-181
Browser default setting..................................................................... 2-181
2.35 SD CARD FOR NETWARE PRINTING TYPE M4/M3 ..................... 2-182
2.35.1 ACCESSORY CHECK............................................................ 2-182

D146/D147/D148/D149/D150 vi SM
2.35.2 INSTALLATION PROCEDURE............................................... 2-182
2.36 PS3 CARD TYPE M4/M3................................................................. 2-185
2.36.1 ACCESSORY CHECK............................................................ 2-185
2.36.2 INSTALLATION PROCEDURE............................................... 2-185
2.37 CAMERA DIRECT PRINT CARD TYPE M4/M3 .............................. 2-188
2.37.1 ACCESSORY CHECK............................................................ 2-188
2.37.2 INSTALLATION PROCEDURE............................................... 2-188
2.38 COLOR CONTROLLER CONNECTION BOARD TYPE M4/M3...... 2-191
2.38.1 INSTALLATION PROCEDURE............................................... 2-191
2.39 SMART CARD READER (D739)...................................................... 2-192
2.39.1 ACCESSORY CHECK............................................................ 2-192
2.39.2 INSTALLATION PROCEDURE............................................... 2-192
3. PREVENTIVE MAINTENANCE................................................... 3-1
3.1 PM PARTS SETTINGS.............................................................................. 3-1
3.1.1 REPLACEMENT PROCEDURE OF THE PM PARTS...................... 3-1
3.1.2 AFTER INSTALLING THE NEW PM PARTS ................................... 3-2
3.1.3 PREPARATION BEFORE OPERATION CHECK............................. 3-3
3.1.4 OPERATION CHECK....................................................................... 3-3
3.2 IMAGE QUALITY STANDARDS................................................................ 3-4
3.2.1 RESOLUTION .................................................................................. 3-4
3.2.2 COLOR SHIFT.................................................................................. 3-4
3.2.3 MAGNIFICATION RATIO ERROR MARGIN .................................... 3-5
3.2.4 MAGNIFICATION RATIO ERROR MARGIN DEVIATION................ 3-6
3.2.5 PITCH ERROR MARGIN.................................................................. 3-6
3.2.6 PERPENDICULARITY...................................................................... 3-6
3.2.7 LINEARITY....................................................................................... 3-7
3.2.8 PARALLELISM................................................................................. 3-7
3.2.9 MISSING IMAGE AREA (D135/D136).............................................. 3-8
3.2.10 MARGIN POSITION.................................................................... 3-8
3.3 PAPER TRANSFER QUALITY STANDARDS........................................... 3-9
3.3.1 REGISTRATION............................................................................... 3-9
3.3.2 SKEW............................................................................................... 3-9
Exposure glass..................................................................................... 3-9
ADF.................................................................................................... 3-10
4. REPLACEMENT AND ADJUSTMENT........................................ 4-1
4.1 NOTES ON THE MAIN POWER SWITCH................................................. 4-1
4.1.1 PUSH SWITCH................................................................................. 4-1
Characteristics of the Push Switch (DC Switch)................................... 4-1

SM vii D146/D147/D148/D149/D150
Shutdown Method................................................................................ 4-2
Forced Shutdown................................................................................. 4-2
4.2 BEFOREHAND.......................................................................................... 4-3
4.3 SPECIAL TOOLS....................................................................................... 4-4
4.4 EXTERIOR COVERS ................................................................................ 4-5
4.4.1 FRONT COVER................................................................................ 4-5
4.4.2 CONTROLLER COVER.................................................................... 4-6
4.4.3 UPPER LEFT COVER...................................................................... 4-7
4.4.4 LEFT REAR COVER ........................................................................ 4-8
4.4.5 LEFT COVER................................................................................... 4-8
4.4.6 REAR COVER................................................................................ 4-10
4.4.7 REAR RIGHT COVER.................................................................... 4-11
4.4.8 REAR LOWER COVER.................................................................. 4-11
4.4.9 SCANNER REAR COVER.............................................................. 4-11
4.4.10 SCANNER REAR COVER (SMALL)......................................... 4-12
4.4.11 RIGHT REAR COVER .............................................................. 4-12
4.4.12 RIGHT UPPER COVER............................................................ 4-13
4.4.13 MAIN POWER SWITCH COVER.............................................. 4-13
4.4.14 WASTE TONER COVER .......................................................... 4-14
4.4.15 REVERSE TRAY....................................................................... 4-14
4.4.16 PAPER EXIT TRAY................................................................... 4-15
4.4.17 PAPER EXIT COVER ............................................................... 4-15
4.4.18 PAPER EXIT LOWER COVER................................................. 4-16
4.4.19 PAPER EXIT FRONT COVER.................................................. 4-17
4.4.20 INNER UPPER COVER............................................................ 4-18
4.4.21 INNER LOWER COVER........................................................... 4-18
4.5 CONTROLLER UNIT............................................................................... 4-19
4.5.1 OPERATION PANEL...................................................................... 4-19
4.5.2 BOARD A........................................................................................ 4-20
4.5.3 BOARD B........................................................................................ 4-21
4.5.4 BOARD C ....................................................................................... 4-22
4.5.5 LCD PANEL.................................................................................... 4-22
4.5.6 LCD................................................................................................. 4-23
Notes when replacing the LCD........................................................... 4-23
Replacement procedure..................................................................... 4-25
4.6 SCANNER UNIT...................................................................................... 4-27
4.6.1 SCANNER EXTERIOR................................................................... 4-27
Scanner Upper Cover......................................................................... 4-27
Scanner Right Cover.......................................................................... 4-27

D146/D147/D148/D149/D150 viii SM
Scanner Front Cover.......................................................................... 4-28
Scanner Left Cover............................................................................ 4-28
4.6.2 EXPOSURE GLASS....................................................................... 4-29
4.6.3 EXPOSURE LAMP (LED)............................................................... 4-30
4.6.4 SCANNER MOTOR........................................................................ 4-31
4.6.5 LENS BLOCK................................................................................. 4-33
4.6.6 ORIGINAL SIZE SENSOR.............................................................. 4-34
4.6.7 SIO.................................................................................................. 4-34
4.6.8 SCANNER HP SENSOR................................................................ 4-35
4.6.9 DF POSITION SENSOR................................................................. 4-36
4.6.10 ADJUSTING THE SCANNER WIRE......................................... 4-37
Scanner Wire (Front).......................................................................... 4-37
Scanner wire assembly (front side).................................................... 4-39
Scanner position adjustment.............................................................. 4-41
Scanner Wire (Rear) .......................................................................... 4-42
Scanner Wire Assembly (rear side).................................................... 4-45
4.6.11 MODIFYING THE SCANNER (CONTACT/CONTACTLESS) WHEN
USING ARDF........................................................................................... 4-45
Procedure for the ADF....................................................................... 4-45
Procedure for the scanner.................................................................. 4-48
4.6.12 MODIFYING THE SCANNER (CONTACT/CONTACTLESS) WHEN
USING SPDF........................................................................................... 4-48
Procedure for the SPDF..................................................................... 4-48
Procedure for the scanner.................................................................. 4-50
4.7 LASER UNIT............................................................................................ 4-51
4.7.1 LASER UNIT................................................................................... 4-52
Before Replacement .......................................................................... 4-52
Removing........................................................................................... 4-52
Installing a New Laser Unit................................................................. 4-53
Adjustment after replacing the laser unit............................................ 4-54
4.7.2 POLYGON MOTOR........................................................................ 4-55
Adjustment after replacing the polygon motor.................................... 4-56
4.7.3 IMAGING TEMPERATURE SENSOR (THERMISTOR)................. 4-56
4.8 PCDU....................................................................................................... 4-57
4.8.1 NOTES WHEN REPLACING A PCDU ........................................... 4-57
D146/D147/ D148 .............................................................................. 4-57
D149/D150......................................................................................... 4-57
4.8.2 PCDU.............................................................................................. 4-58
Adjustment before replacing the PCDU.............................................. 4-58

SM ix D146/D147/D148/D149/D150
Replacement...................................................................................... 4-59
4.8.3 PCU/DEVELOPMENT UNIT........................................................... 4-61
Before replacing a PCU or development unit..................................... 4-61
Replacement...................................................................................... 4-61
Precautions when joining the PCU and the development Unit........... 4-63
Check procedure after replacing........................................................ 4-63
4.9 WASTE TONER....................................................................................... 4-64
4.9.1 REPLACEMENT............................................................................. 4-64
4.9.2 ADJUSTMENT AFTER REPLACING ............................................. 4-64
4.10 IMAGE TRANSFER UNIT.................................................................. 4-65
4.10.1 IMAGE TRANSFER BELT UNIT............................................... 4-65
Adjustment before replacing the image transfer belt unit................... 4-65
Replacement...................................................................................... 4-65
4.10.2 IMAGE TRANSFER CLEANING UNIT...................................... 4-68
Adjustment before replacing the image transfer cleaning unit............ 4-68
Replacement...................................................................................... 4-68
4.10.3 IMAGE TRANSFER BELT ........................................................ 4-70
Adjustment after replacing the Image transfer belt............................. 4-72
4.10.4 PAPER TRANSFER ROLLER .................................................. 4-73
4.10.5 PAPER TRANSFER ROLLER UNIT......................................... 4-73
Adjustment before replacing the paper transfer roller unit.................. 4-73
Replacement...................................................................................... 4-73
4.10.6 PAPER TRANSFER EXIT SENSOR......................................... 4-76
4.10.7 TM (ID) SENSOR...................................................................... 4-76
Before Replacing the TM(ID) sensor.................................................. 4-76
Replacement procedure..................................................................... 4-78
Adjustment after replacing the TM(ID) sensor.................................... 4-79
4.10.8 TEMPERATURE AND HUMIDITY SENSOR............................ 4-80
4.11 DRIVE UNIT....................................................................................... 4-81
4.11.1 OVERVIEW............................................................................... 4-81
4.11.2 PAPER FEED MOTOR............................................................. 4-82
4.11.3 TRANSPORT MOTOR.............................................................. 4-82
4.11.4 TRANSFER MOTOR UNIT....................................................... 4-83
4.11.5 IMAGING DRIVE UNIT ............................................................. 4-85
4.11.6 PCU MOTOR: CMY .................................................................. 4-86
4.11.7 DEVELOPMENT MOTOR: CMY............................................... 4-86
4.11.8 DEVELOPMENT MOTOR: BLACK........................................... 4-87
4.11.9 PCU: BLACK / IMAGE TRANSFER MOTOR............................ 4-87
4.11.10 REGISTRATION MOTOR ..................................................... 4-87

D146/D147/D148/D149/D150 x SM
4.11.11 FUSING MOTOR................................................................... 4-88
4.11.12 PAPER EXIT / PRESSURE RELEASE MOTOR................... 4-88
4.11.13 DUPLEX ENTRANCE MOTOR ............................................. 4-89
4.11.14 TONER TRANSPORT MOTOR............................................. 4-90
4.11.15 SUB HOPPER....................................................................... 4-90
K......................................................................................................... 4-90
C ........................................................................................................ 4-91
M........................................................................................................ 4-92
Y......................................................................................................... 4-93
4.11.16 TONER END SENSOR ......................................................... 4-94
4.11.17 TONER BOTTLE DRIVE MOTOR......................................... 4-95
K......................................................................................................... 4-95
C ........................................................................................................ 4-95
M........................................................................................................ 4-95
Y......................................................................................................... 4-96
4.11.18 ID CHIP ................................................................................. 4-97
K......................................................................................................... 4-97
C ........................................................................................................ 4-97
M........................................................................................................ 4-97
Y......................................................................................................... 4-98
4.12 FUSING UNIT .................................................................................... 4-99
4.12.1 FUSING UNIT ........................................................................... 4-99
Replacement...................................................................................... 4-99
4.12.2 FUSING ENTRANCE GUIDE PLATE ..................................... 4-100
Cleaning the Fusing Entrance Guide Plate ...................................... 4-100
4.12.3 FUSING EXIT GUIDE PLATE................................................. 4-101
Cleaning the Fusing Exit Guide Plate............................................... 4-101
4.12.4 FUSING UPPER COVER........................................................ 4-102
4.12.5 FUSING LOWER COVER....................................................... 4-102
4.12.6 FUSING FRONT COVER........................................................ 4-103
4.12.7 FUSING REAR COVER.......................................................... 4-103
4.12.8 HEATING SLEEVE BELT UNIT.............................................. 4-104
Replacement.................................................................................... 4-104
4.12.9 PRESSURE ROLLER............................................................. 4-105
Adjustment before replacing the pressure roller............................... 4-105
Replacement.................................................................................... 4-105
4.12.10 THERMOSTAT UNIT........................................................... 4-107
4.12.11 NC SENSOR UNIT.............................................................. 4-108
4.12.12 FUSING THERMISTOR ...................................................... 4-108

SM xi D146/D147/D148/D149/D150
4.12.13 FUSING THERMOPILE UNIT ............................................. 4-109
4.12.14 PRESSURE ROLLER HP SENSOR.................................... 4-109
4.12.15 FUSING SHIELD POSITION SENSOR............................... 4-110
4.12.16 FUSING SHIELD DRIVE MOTOR....................................... 4-111
4.13 PAPER EXIT.................................................................................... 4-112
4.13.1 PAPER EXIT UNIT.................................................................. 4-112
4.13.2 PAPER EXIT SWITCHING SOLENOID.................................. 4-112
4.13.3 PAPER EXIT SENSOR........................................................... 4-113
4.13.4 REVERSE SENSOR............................................................... 4-114
4.13.5 PAPER EXIT FULL SENSOR................................................. 4-115
4.13.6 REVERSE MOTOR................................................................. 4-115
4.13.7 FUSING EXIT SENSOR.......................................................... 4-116
4.14 PAPER FEED .................................................................................. 4-117
4.14.1 PAPER FEED UNIT................................................................ 4-117
1st Paper Feed Unit......................................................................... 4-117
2nd Paper Feed Unit........................................................................ 4-118
4.14.2 PAPER DUST COLLECTION UNIT........................................ 4-120
4.14.3 PICK-UP ROLLER, PAPER FEED ROLLER, SEPARATION
ROLLER, TORQUE LIMITER................................................................ 4-120
4.14.4 PAPER FEED SOLENOID...................................................... 4-122
4.14.5 PAPER FEED SENSOR ......................................................... 4-123
4.14.6 VERTICAL TRANSPORT SENSOR........................................ 4-124
4.14.7 LIMIT SENSOR....................................................................... 4-125
4.14.8 PAPER END SENSOR ........................................................... 4-125
4.14.9 REGISTRATION SENSOR..................................................... 4-126
4.15 BY-PASS TRAY UNIT...................................................................... 4-127
4.15.1 BY-PASS TRAY...................................................................... 4-127
4.15.2 BY-PASS PAPER END SENSOR........................................... 4-129
4.15.3 BY-PASS PICK-UP ROLLER.................................................. 4-130
4.15.4 BY-PASS PAPER FEED ROLLER.......................................... 4-130
4.15.5 BY-PASS SEPARATION ROLLER......................................... 4-131
4.15.6 TORQUE LIMITER.................................................................. 4-131
4.15.7 BY-PASS TRAY SIDE FENCE (D150 ONLY)......................... 4-132
4.16 DUPLEX UNIT ................................................................................. 4-134
4.16.1 DUPLEX UNIT ........................................................................ 4-134
4.16.2 DUPLEX/BY-PASS MOTOR................................................... 4-136
4.16.3 DUPLEX ENTRANCE SENSOR............................................. 4-137
4.16.4 DUPLEX JAM PROCESSING LED......................................... 4-139
4.16.5 DUPLEX EXIT SENSOR......................................................... 4-139

D146/D147/D148/D149/D150 xii SM
4.16.6 DOUBLE FEED SENSOR (D150 ONLY)................................ 4-140
4.17 ELECTRICAL COMPONENTS ........................................................ 4-142
4.17.1 OVERVIEW............................................................................. 4-142
Printed Circuits/Parts Inside the Controller Box ............................... 4-142
Printed Circuits Behind the Controller Box....................................... 4-143
Printed Circuit/Parts Inside the Power Box....................................... 4-143
Printed Circuits Behind the Power Box............................................. 4-144
4.17.2 IPU SUB (SPDF ONLY).......................................................... 4-144
4.17.3 IPU.......................................................................................... 4-145
4.17.4 BCU......................................................................................... 4-147
Replacing the NVRAM (EEPROM) on the BCU............................... 4-147
4.17.5 CONTROLLER BOARD.......................................................... 4-148
NVRAMs on the controller board...................................................... 4-149
4.17.6 HDD ........................................................................................ 4-150
Adjustment after replacement .......................................................... 4-151
4.17.7 CPU COOLING FAN............................................................... 4-151
4.17.8 IMAGING IOB ......................................................................... 4-151
4.17.9 HVP_TTS................................................................................ 4-152
4.17.10 PSU (AC CONTROLLER BOARD)...................................... 4-153
4.17.11 PSU (DC POWER).............................................................. 4-153
4.17.12 PAPER TRANSPORT IOB.................................................. 4-154
4.17.13 HVP-CB............................................................................... 4-155
4.18 FANS/FILTERS................................................................................ 4-156
4.18.1 OZONE FILTER/DUST FILTER.............................................. 4-156
Adjustment before replacing the dust filter....................................... 4-156
Replacement.................................................................................... 4-156
4.18.2 ODOR FILTER........................................................................ 4-157
4.18.3 DEVELOPMENT INTAKE FAN/RIGHT................................... 4-158
4.18.4 DEVELOPMENT INTAKE FAN/LEFT ..................................... 4-159
4.18.5 OZONE EXHAUST FAN ......................................................... 4-159
4.18.6 PAPER EXIT COOLING FAN ................................................. 4-160
4.18.7 FUSING EXHAUST HEAT FAN.............................................. 4-160
4.18.8 DRIVE COOLING FAN (D148/D149/D150)............................. 4-161
4.18.9 MAIN EXHAUST FAN (D148/D149/D150).............................. 4-162
4.18.10 TONER SUPPLY COOLING FAN ....................................... 4-163
D148/D149/D150 ............................................................................. 4-163
D146/D147....................................................................................... 4-164
4.18.11 PSU COOLING FAN............................................................ 4-165
4.18.12 PSU EXHAUST HEAT FAN (D148/D149/D150).................. 4-166

SM xiii D146/D147/D148/D149/D150
4.18.13 POWER BOX COOLING FAN............................................. 4-166
4.19 IMAGE ADJUSTMENT..................................................................... 4-167
4.19.1 SCANNING ............................................................................. 4-167
Scanner sub-scan magnification...................................................... 4-167
Scanner leading edge and side-to-side registration......................... 4-167
4.19.2 ARDF ...................................................................................... 4-168
ARDF side-to-side, leading edge registration and trailing edge....... 4-168
ARDF sub-scan magnification.......................................................... 4-169
4.19.3 REGISTRATION ..................................................................... 4-169
Image Area....................................................................................... 4-169
Leading Edge................................................................................... 4-169
Side to Side...................................................................................... 4-169
Adjustment Standard........................................................................ 4-169
Paper Registration Standard............................................................ 4-169
Adjustment Procedure...................................................................... 4-170
4.19.4 ERASE MARGIN ADJUSTMENT............................................ 4-171
4.19.5 COLOR REGISTRATION........................................................ 4-171
Line Position Adjustment.................................................................. 4-171
4.19.6 PRINTER GAMMA CORRECTION......................................... 4-172
Copy Mode....................................................................................... 4-172
Printer Mode..................................................................................... 4-176
5. TROUBLESHOOTING ................................................................ 5-1
5.1 SELF-DIAGNOSTIC MODE....................................................................... 5-1
5.1.1 SERVICE CALL CODES .................................................................. 5-1
Service Call Conditions........................................................................ 5-1
SC logging............................................................................................ 5-2
SC automatic reboot ............................................................................ 5-2
Controller self-diagnosis outline........................................................... 5-5
Controller self-diagnosis flowchart ....................................................... 5-6
5.2 SERVICE CALL 101-195......................................................................... 5-10
5.2.1 SC100 (ENGINE: SCANNING)....................................................... 5-10
5.3 SERVICE CALL 201-285......................................................................... 5-22
5.3.1 SC200 (ENGINE: IMAGE WRITING).............................................. 5-22
5.4 SERVICE CALL 312-396......................................................................... 5-28
5.4.1 SC300 (ENGINE: CHARGE, DEVELOPMENT) ............................. 5-28
5.5 SERVICE CALL 441-498......................................................................... 5-33
5.5.1 SC400 (ENGINE: AROUND THE DRUM) ...................................... 5-33
5.6 SERVICE CALL 501-584......................................................................... 5-41

D146/D147/D148/D149/D150 xiv SM
5.6.1 SC500 (ENGINE: PAPER TRANSPORT 1: PAPER FEED, DUPLEX,
TRANSPORT).......................................................................................... 5-41
5.7 SERVICE CALL 620-689......................................................................... 5-84
5.7.1 SC600 (ENGINE: COMMUNICATION AND OTHERS) .................. 5-84
5.7.2 SC600 (CONTROLLER)................................................................. 5-91
5.8 SERVICE CALL 700-792....................................................................... 5-103
5.8.1 SC700 (ENGINE: PERIPHERALS)............................................... 5-103
5.9 SERVICE CALL 816-899....................................................................... 5-126
5.9.1 SC800 (CONTROLLER)............................................................... 5-126
5.10 SERVICE CALL 900-998 ................................................................. 5-189
5.10.1 SC900 (ENGINE: OTHERS)................................................... 5-189
5.10.2 SC900 (CONTROLLER) ......................................................... 5-191
5.11 JAM DETECTION............................................................................ 5-199
5.11.1 JAM DISPLAY......................................................................... 5-199
Paper Jam Display........................................................................... 5-199
5.11.2 JAM CODES AND DISPLAY CODES..................................... 5-200
5.11.3 PAPER SIZE CODE................................................................ 5-212
5.11.4 SENSOR LOCATIONS ........................................................... 5-213
5.12 ELECTRICAL COMPONENT DEFECTS......................................... 5-214
5.12.1 D148/D149/D150 .................................................................... 5-214
5.12.2 D146/D147.............................................................................. 5-215
5.12.3 FUSE POSITION..................................................................... 5-216
5.13 IMAGE QUALITY............................................................................. 5-218
5.13.1 WHEN AN ABNORMAL IMAGE IS GENERATED.................. 5-218
6. ENERGY SAVE........................................................................... 6-1
6.1 ENERGY SAVE......................................................................................... 6-1
6.1.1 ENERGY SAVER MODES ............................................................... 6-1
Timer Settings...................................................................................... 6-1
Return to Stand-by Mode..................................................................... 6-2
Recommendation................................................................................. 6-2
6.1.2 ENERGY SAVE EFFECTIVENESS.................................................. 6-3
6.2 PAPER SAVE............................................................................................ 6-4
6.2.1 EFFECTIVENESS OF DUPLEX/COMBINE FUNCTION.................. 6-4

READ THIS FIRST
Important Safety Notices
Prevention of Physical Injury
1. Before disassembling or assembling parts of the copier and peripherals, make sure that the
copier power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. If any adjustment or operation check has to be made with exterior covers off or open while the
main switch is turned on, keep hands away from electrified or mechanically driven
components.
4. The copier drives some of its components when it completes the warm-up period. Be careful
to keep hands away from the mechanical and electrical components as the copier starts
operation.
5. The inside and the metal parts of the fusing unit become extremely hot while the copier is
operating. Be careful to avoid touching those components with your bare hands.
Health Safety Conditions
1. Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it
may cause temporary eye discomfort. Immediately wash eyes with plenty of water. If
unsuccessful, get medical attention.
2. The copier, which use high voltage power source, can generate ozone gas. High ozone
density is harmful to human health. Therefore, the machine must be installed in a
well-ventilated room.