Konica Minolta magicolor 4690MF User manual

SERVICE MANUAL
2008.052008.05
Ver. 1.0Ver. 1.0
FIELD SERVICE
magicolor 4690MF

i
FIELD SERVICE TOTAL CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS ..............................................................S-1
IMPORTANT NOTICE ................................................................................................S-1
DESCRIPTION ITEMS FOR DANGER, WARNING AND CAUTION .........................S-1
SAFETY WARNINGS .................................................................................................S-2
WARNING INDICATIONS ON THE MACHINE ........................................................S-19
MEASURES TO TAKE IN CASE OF AN ACCIDENT ....................................................S-22
Composition of the service manual ................................................................................. C-1
Notation of the service manual ....................................................................................... C-2
magicolor 4690MF Main body
Outline ............................................................................................................................1
Maintenance ................................................................................................................... 5
Adjustment/Setting......................................................................................................101
Troubleshooting...........................................................................................................271
Appendix.....................................................................................................................321
Auto Document Feeder Unit
Outline ............................................................................................................................1
Maintenance ................................................................................................................... 3
Adjustment/Setting........................................................................................................15
Troubleshooting.............................................................................................................25
Lower Feeder Unit
Outline ............................................................................................................................1
Maintenance ................................................................................................................... 3
Adjustment/Setting........................................................................................................13
Troubleshooting.............................................................................................................15

SAFETY AND IMPORTANT WARNING ITEMS
5.2 Laser Safety Label
• A laser safety label is attached to the inside of the machine as shown below.
A0FDP0E500DA

C-1
Composition of the service manual
This service manual consists of Theory of Operation section and Field Service section to
explain the main machine and its corresponding options.
Theory of Operation section gives, as information for the CE to get a full understanding of
the product, a rough outline of the object and role of each function, the relationship
between the electrical system and the mechanical system, and the timing of operation of
each part.
Field Service section gives, as information required by the CE at the site (or at the cus-
tomer’s premise), a rough outline of the service schedule and its details, maintenance
steps, the object and role of each adjustment, error codes and supplementary information.
The basic configuration of each section is as follows. However some options may not be
applied to the following configuration.
<Theory of Operation section>
<Field service section>
OUTLINE: Explanation of system configuration,
product specifications, unit configuration, and paper path
COMPOSITION/OPERATION: Explanation of configuration of each unit,
operating system, and control system
OUTLINE: Explanation of system configuration, and product
specifications
MAINTENANCE: Explanation of service schedule, maintenance steps, ser-
vice tools, removal/reinstallation methods of major parts,
and firmware version up method etc.
ADJUSTMENT/SETTING: Explanation of utility mode, service mode, and mechanical
adjustment etc.
TROUBLESHOOTING: Explanation of lists of jam codes and error codes, and
their countermeasures etc.
APPENDIX: Parts layout drawings, connector layout drawings, timing
chart, overall layout drawing are attached.

SERVICE MANUAL
2008.05
Ver. 1.0
FIELD SERVICE
Main body
magicolor 4690MF

magicolor 4690MFOutline
MaintenanceAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 May 2008
i
CONTENTS
magicolor 4690MF Main body
Outline
1. System configuration...............................................................................................1
2. Product specifications ............................................................................................. 2
2.1 Fax specifications ................................................................................................. 4
Maintenance
3. Periodical check ......................................................................................................5
3.1 Maintenance items................................................................................................5
3.1.1 Parts to be replaced by users (CRU) ............................................................5
3.1.2 Parts to be replaced by a service engineer (FRU)........................................6
3.2 Maintenance parts................................................................................................6
3.2.1 Replacement parts........................................................................................6
3.3 Concept of parts life..............................................................................................7
3.4 Maintenance Procedure (periodical check parts) .................................................8
3.4.1 Replacing the tray 2 feed roller .....................................................................8
3.4.2 Replacing the tray 1 feed roller .....................................................................9
3.4.3 Replacing the ozone filter............................................................................12
3.4.4 Replacing the toner cartridge (C/M/Y/K).....................................................13
3.4.5 Replacing the imaging unit (C,M,Y,K) .........................................................16
3.4.6 Replacing the waste toner bottle.................................................................20
3.4.7 Replacing the transfer roller........................................................................21
3.4.8 Replacing the transfer belt..........................................................................23
3.4.9 Replacing the fuser unit ..............................................................................26
4. Service tool ...........................................................................................................28
4.1 Service material list ............................................................................................28
4.2 CE tool list...........................................................................................................28
4.3 Consumable parts ..............................................................................................29
4.3.1 Toner cartridge............................................................................................29
4.3.2 Imaging unit ................................................................................................29
4.3.3 Waste toner bottle.......................................................................................29
5. Remote Setup Utility .............................................................................................30
5.1 About RSU..........................................................................................................30
5.2 Outline ................................................................................................................30
5.2.1 Corresponding OS ...................................................................................... 30

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5.2.2 ........... 30
5.3 Connection methods .......................................................................................... 30
5.3.1 Remote connection (Phone line connection).............................................. 30
5.3.2 Local connection (USB connection)............................................................ 31
5.4 Setup.................................................................................................................. 31
5.4.1 Setup of PC ................................................................................................ 31
5.4.2 Connection and access of user machine.................................................... 31
5.5 Operation............................................................................................................ 33
5.5.1 Job list......................................................................................................... 33
5.5.2 New (Dial setting) ....................................................................................... 33
5.5.3 Open File.................................................................................................... 36
5.5.4 Update Firmware........................................................................................ 37
5.5.5 Clear Memory Data .................................................................................... 38
5.5.6 Clear SRAM Data....................................................................................... 39
5.6 Function setting.................................................................................................. 40
5.7 Troubleshooting.................................................................................................. 42
5.7.1 Error message list....................................................................................... 42
6. Firmware upgrade................................................................................................. 43
6.1 Controller firmware upgrading............................................................................ 43
6.1.1 Preparations for firmware upgrading........................................................... 43
6.1.2 Upgrading procedure.................................................................................. 43
7. Other..................................................................................................................... 45
7.1 Disassembly/adjustment prohibited items.......................................................... 45
7.2 Disassembly/assembly/cleaning list (other parts) .............................................. 46
7.2.1 Disassembly/assembly parts list................................................................. 46
7.2.2 Cleaning parts list....................................................................................... 47
7.3 Disassembly/assembly procedure...................................................................... 48
7.3.1 Front cover.................................................................................................. 48
7.3.2 Right front cover.......................................................................................... 48
7.3.3 Operation panel.......................................................................................... 49
7.3.4 Left cover.................................................................................................... 49
7.3.5 Rear cover .................................................................................................. 50
7.3.6 Right rear cover .......................................................................................... 50
7.3.7 Tray 2.......................................................................................................... 51
7.3.8 NCU board (NCUB).................................................................................... 51
7.3.9 MFP board (MFPB)..................................................................................... 52
7.3.10 Print control board (PRCB)......................................................................... 53
7.3.11 DC power supply (DCPU)........................................................................... 55

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7.3.12 High voltage unit/1 (HV1)............................................................................58
7.3.13 High voltage unit/2 (HV2)............................................................................59
7.3.14 Relay board (REYB)....................................................................................60
7.3.15 Toner level sensor board (TLSB) ................................................................62
7.3.16 PH unit ........................................................................................................65
7.3.17 Driving unit..................................................................................................72
7.3.18 Scanner unit................................................................................................73
7.3.19 Exposure unit..............................................................................................74
7.3.20 Backup Battery............................................................................................76
7.3.21 PWB box.....................................................................................................77
7.3.22 PWB box lower cover..................................................................................81
7.3.23 Color PC drum motor (M2)..........................................................................81
7.3.24 Transport motor (M3) ..................................................................................82
7.3.25 Fusing motor (M4).......................................................................................82
7.3.26 K Developing motor (M5)............................................................................82
7.3.27 Toner supply motor/Y, M (M6).....................................................................83
7.3.28 Toner supply motor/C, K (M7).....................................................................84
7.3.29 Scanner motor (M100)................................................................................84
7.3.30 Media feed clutch assy................................................................................86
7.3.31 Registration roller clutch (CL3)....................................................................87
7.3.32 1st image transfer pressure/retraction clutch (CL4)....................................88
7.3.33 2nd image transfer pressure/retraction clutch (CL5)...................................89
7.3.34 Switchback roller feed clutch (CL11)...........................................................90
7.3.35 Switchback roller reverse clutch (CL12)......................................................93
7.3.36 Duplex transport roller clutch (CL13) ..........................................................94
7.3.37 Temperature/ humidity sensor (TEM/HUMS)..............................................96
7.3.38 IDC sensor board/Re, IDC sensor board/Fr (IDCSB/R, IDCSB/L)..............97
7.3.39 Speaker (SP1).............................................................................................98
7.4 Cleaning procedure ............................................................................................ 99
7.4.1 Tray 1 feed roller..........................................................................................99
7.4.2 Tray 2 feed roller..........................................................................................99
7.4.3 Vertical transport roller..............................................................................100
7.4.4 Laser irradiation section............................................................................100
Adjustment/Setting
8. How to use the adjustment section .....................................................................101
9. Description of the control panel...........................................................................102
9.1 Control panel display........................................................................................102

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9.1.1 Main screen.............................................................................................. 102
9.1.2 Print screen............................................................................................... 102
9.1.3 Toner supply screen.................................................................................. 103
10. REPORT/STATUS mode..................................................................................... 104
10.1 REPORT/STATUS mode function tree ............................................................. 104
10.2 TOTAL PRINT................................................................................................... 105
10.2.1 TOTAL PRINT........................................................................................... 105
10.2.2 MONO COPY ........................................................................................... 105
10.2.3 COLOR COPY.......................................................................................... 105
10.2.4 MONO PRINT........................................................................................... 105
10.2.5 COLOR PRINT......................................................................................... 105
10.2.6 FAX PRINT ............................................................................................... 105
10.2.7 TOTAL SCAN............................................................................................ 105
10.3 SUPPLY STATUS ............................................................................................. 106
10.3.1 C TONER.................................................................................................. 106
10.3.2 M TONER ................................................................................................. 106
10.3.3 Y TONER.................................................................................................. 106
10.3.4 K TONER.................................................................................................. 106
10.3.5 C I-UNIT.................................................................................................... 106
10.3.6 M I-UNIT................................................................................................... 106
10.3.7 Y I-UNIT.................................................................................................... 106
10.3.8 K I-UNIT.................................................................................................... 106
10.4 TX/RX RESULT................................................................................................ 107
10.5 REPORT........................................................................................................... 107
10.5.1 TX RESULT REPORT............................................................................... 107
10.5.2 RX RESULT REPORT.............................................................................. 107
10.5.3 ACTIVITY REPORT.................................................................................. 107
10.5.4 MEMORY DATA LIST................................................................................ 107
10.5.5 MEMORY IMAGE PRINT ......................................................................... 107
10.5.6 FAVORITE LIST........................................................................................ 107
10.5.7 SPEED DIAL LIST.................................................................................... 108
10.5.8 GROUP DIAL LIST................................................................................... 108
10.5.9 UTILITY MAP............................................................................................ 108
10.5.10 CONFIGURATION PAGE.......................................................................... 108
10.5.11 DEMO PAGE............................................................................................. 111
11. Utility mode ......................................................................................................... 112
11.1 Utility mode function tree.................................................................................. 112
11.2 MACHINE SETTING ........................................................................................ 116

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11.2.1 AUTO PANEL RESET...............................................................................116
11.2.2 PREHEAT MODE......................................................................................116
11.2.3 ENERGY SAVE MODE.............................................................................116
11.2.4 LCD CONTRAST......................................................................................116
11.2.5 KEY SPEED..............................................................................................116
11.2.6 LANGUAGE ..............................................................................................117
11.2.7 LAMP OFF TIME ......................................................................................117
11.2.8 LAMP WARMUP TIME .............................................................................117
11.2.9 BUZZER VOLUME....................................................................................117
11.2.10 INITIAL MODE..........................................................................................118
11.2.11 TONER EMPTY........................................................................................118
11.2.12 TONER NEAR EMPTY.............................................................................118
11.2.13 AUTO CONTINUE.....................................................................................118
11.2.14 CALIBRATION ..........................................................................................118
11.3 PAPER SETUP.................................................................................................119
11.3.1 TRAY1 PAPER..........................................................................................119
11.3.2 TRAY2 PAPER..........................................................................................119
11.4 ADMIN. MANAGEMENT ..................................................................................120
11.4.1 ADMINISTRATOR NO...............................................................................120
11.4.2 REMOTE MONITOR.................................................................................120
11.4.3 NETWORK SETTING...............................................................................120
11.4.4 E-MAIL SETTING .....................................................................................124
11.4.5 LDAP SETTING........................................................................................127
11.4.6 USB SETTING..........................................................................................129
11.4.7 COMM. SETTING.....................................................................................129
11.4.8 USER SETTING .......................................................................................130
11.4.9 AUTO REDIAL ..........................................................................................131
11.4.10 SUPPLIES REPLACE...............................................................................131
11.5 COPY SETTING...............................................................................................132
11.5.1 PAPER PRIORITY ....................................................................................132
11.5.2 QUALITY PRIORITY.................................................................................132
11.5.3 DENSITY PRIORITY ................................................................................132
11.5.4 DENSITY LEVEL ...................................................................................... 133
11.5.5 OUTPUT PRIORITY .................................................................................133
11.5.6 4IN1 COPY ORDER ................................................................................. 133
11.5.7 DUPLEX COPY ........................................................................................133
11.6 DIAL REGISTER .............................................................................................. 134
11.6.1 FAVORITE.................................................................................................134

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11.6.2 SPEED DIAL............................................................................................. 134
11.6.3 GROUP DIAL............................................................................................ 134
11.7 FAX TX OPERATION ....................................................................................... 134
11.7.1 DENSITY LEVEL...................................................................................... 134
11.7.2 QUALITY PRIORITY................................................................................. 135
11.7.3 DEFULT TX............................................................................................... 135
11.7.4 HEADER................................................................................................... 135
11.8 FAX RX OPERATION....................................................................................... 136
11.8.1 MEMORY RX MODE................................................................................ 136
11.8.2 NO. of RINGS........................................................................................... 136
11.8.3 REDUCTION RX ...................................................................................... 136
11.8.4 RX PRINT................................................................................................. 141
11.8.5 RX MODE................................................................................................. 141
11.8.6 FORWARD ............................................................................................... 142
11.8.7 FOOTER................................................................................................... 142
11.8.8 SELECT TRAY.......................................................................................... 143
11.9 REPORTING.................................................................................................... 143
11.9.1 ACTIVITY REPORT.................................................................................. 143
11.9.2 TX RESULT REPORT............................................................................... 143
11.9.3 RX RESULT REPORT.............................................................................. 143
11.10 SCAN SETTING............................................................................................... 144
11.10.1 RESOLUTION .......................................................................................... 144
11.10.2 IMAGE FORMAT....................................................................................... 144
11.10.3 CODING METHOD................................................................................... 144
11.10.4 FILE SIZE................................................................................................. 144
11.10.5 QUALITY PRIORITY................................................................................. 144
11.10.6 DENSITY LEVEL...................................................................................... 145
12. User service mode.............................................................................................. 146
12.1 User service mode function tree....................................................................... 146
12.2 FAX MAINTENANCE........................................................................................ 148
12.3 ADJUST ........................................................................................................... 148
12.3.1 TOP ADJUSTMENT ................................................................................. 148
12.3.2 LEFT ADJ. (FRONT)................................................................................. 148
12.3.3 LEFT ADJ. (BACK)................................................................................... 148
12.3.4 TRANSFER POWER................................................................................ 148
12.4 AIDC MODE..................................................................................................... 148
12.5 CRU USAGE .................................................................................................... 148
12.5.1 TRANSFER BELT..................................................................................... 148

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12.5.2 FUSER UNIT ............................................................................................148
12.5.3 TRANSFER ROLLER ...............................................................................148
12.6 SUPPLIES REPLACE ......................................................................................148
13. SERVICE MODE.................................................................................................149
13.1 SERVICE MODE entry procedure....................................................................149
13.2 SERVICE MODE function tree .........................................................................149
13.3 SERVICE’S CHOICE........................................................................................153
13.3.1 TX SPEED ................................................................................................153
13.3.2 RX SPEED................................................................................................153
13.3.3 TX LEVEL .................................................................................................153
13.3.4 RX LEVEL.................................................................................................153
13.3.5 DTMF LEVEL............................................................................................153
13.3.6 CNG LEVEL..............................................................................................154
13.3.7 CED LEVEL..............................................................................................154
13.3.8 ECM MODE .............................................................................................. 154
13.3.9 CODING SCHEME ................................................................................... 154
13.3.10 TONER EMPTY REPORT ........................................................................155
13.3.11 PROTOCOL REPORT ..............................................................................155
13.3.12 GDI TIMEOUT ..........................................................................................155
13.3.13 TWAIN TIMEOUT .....................................................................................156
13.3.14 ENERGY SAVE MODE.............................................................................156
13.3.15 ENABLE WARNING..................................................................................156
13.4 ADJUST............................................................................................................157
13.4.1 CCD MAIN ZOOM ....................................................................................158
13.4.2 CCD SUB ZOOM......................................................................................159
13.4.3 CCD MAIN REGIST..................................................................................160
13.4.4 CCD SUB REGIST ...................................................................................161
13.4.5 ADF 1ST SUB ZOOM...............................................................................162
13.4.6 ADF 1ST MAIN REG ................................................................................162
13.4.7 ADF 1ST SUB REG..................................................................................163
13.4.8 ADF 2ND SUB ZOOM ..............................................................................163
13.4.9 ADF 2ND MAIN REG................................................................................163
13.4.10 ADF 2ND SUB REG .................................................................................164
13.4.11 ADF LOOP................................................................................................164
13.4.12 FLICKER...................................................................................................164
13.4.13 TOP ADJUSTMENT..................................................................................165
13.4.14 LEFT ADJ. (FRONT).................................................................................165
13.4.15 LEFT ADJ. (BACK) ...................................................................................165

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13.4.16 TRANSFER POWER................................................................................ 166
13.4.17 IMAGE ADJ PARAM................................................................................. 167
13.4.18 MAXIMUM DENSITY................................................................................ 167
13.4.19 FUSER SPEED ........................................................................................ 167
13.4.20 TEMPERATURE....................................................................................... 168
13.4.21 AIDC MODE ............................................................................................. 168
13.4.22 SUPPLIES REPLACE............................................................................... 169
13.4.23 BK CLEAR................................................................................................ 169
13.5 COUNTER........................................................................................................ 170
13.5.1 TOTAL PRINT........................................................................................... 170
13.5.2 FAX COUNTER ........................................................................................ 171
13.5.3 SCAN COUNTER..................................................................................... 171
13.5.4 TRAY COUNTER...................................................................................... 171
13.5.5 PAPER SIZE COUNTER .......................................................................... 171
13.5.6 PAPER TYPE COUNTER......................................................................... 171
13.5.7 APPLICATION COUNT............................................................................. 172
13.5.8 SUPPLIES STATUS.................................................................................. 172
13.5.9 CRU USAGE............................................................................................. 172
13.5.10 JAM COUNTER........................................................................................ 172
13.5.11 TROUBLE COUNTER.............................................................................. 172
13.6 DISPLAY........................................................................................................... 173
13.6.1 MAIN F/W VER......................................................................................... 173
13.6.2 ENGINE F/W VER.................................................................................... 173
13.6.3 MAIN RAM SIZE....................................................................................... 173
13.6.4 SERIAL NO............................................................................................... 173
13.7 FUNCTION....................................................................................................... 174
13.7.1 PAPER FEED TEST ................................................................................. 174
13.7.2 PRN TEST PATTERN............................................................................... 174
13.7.3 ADF FEED TEST...................................................................................... 175
13.7.4 COPY ADF GLASS .................................................................................. 175
13.7.5 FAX RES. COPY TEST ............................................................................ 175
13.7.6 SCAN TEST.............................................................................................. 175
13.7.7 PRINTER TEST........................................................................................ 176
13.7.8 ADF TEST ................................................................................................ 178
13.8 SOFT SWITCH................................................................................................. 179
13.8.1 KEY DEFINITION FOR SOFT SWITCH................................................... 179
13.9 REPORT........................................................................................................... 179
13.9.1 SERVICE DATA LIST................................................................................ 179

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13.9.2 ERRO
13.9.3 T.30 PROTOCOL LIST..............................................................................183
13.10 ADMIN. REGISTRATION..................................................................................185
13.11 FIXED ZOOM CHANGE...................................................................................185
13.12 FACTORY TEST...............................................................................................185
13.13 CLEAR DATA....................................................................................................186
13.13.1 SRAM CLEAR...........................................................................................186
13.13.2 MEMORY CLEAR.....................................................................................186
14. SOFT SWITCH set..............................................................................................187
14.1 Description........................................................................................................187
14.2 Default setting...................................................................................................187
14.2.1 Country for each marketing area ..............................................................187
14.2.2 Soft switch list ...........................................................................................188
14.2.3 Default soft switch setting for each market area .......................................192
14.3 Soft switch definition.........................................................................................214
14.3.1 SOFT SWITCH: #01 ................................................................................. 214
14.3.2 SOFT SWITCH: #02 ................................................................................. 215
14.3.3 SOFT SWITCH: #03 ................................................................................. 216
14.3.4 SOFT SWITCH: #04 ................................................................................. 217
14.3.5 SOFT SWITCH: #05 ................................................................................. 218
14.3.6 SOFT SWITCH: #06 ................................................................................. 219
14.3.7 SOFT SWITCH: #07 ................................................................................. 219
14.3.8 SOFT SWITCH: #08 ................................................................................. 220
14.3.9 SOFT SWITCH: #09 ................................................................................. 220
14.3.10 SOFT SWITCH: #10 ................................................................................. 221
14.3.11 SOFT SWITCH: #11 ................................................................................. 222
14.3.12 SOFT SWITCH: #12 ................................................................................. 223
14.3.13 SOFT SWITCH: #13 ................................................................................. 224
14.3.14 SOFT SWITCH: #14 ................................................................................. 224
14.3.15 SOFT SWITCH: #15 ................................................................................. 225
14.3.16 SOFT SWITCH: #16 ................................................................................. 225
14.3.17 SOFT SWITCH: #17 ................................................................................. 226
14.3.18 SOFT SWITCH: #18 ................................................................................. 227
14.3.19 SOFT SWITCH: #19 ................................................................................. 228
14.3.20 SOFT SWITCH: #20 ................................................................................. 228
14.3.21 SOFT SWITCH: #21 ................................................................................. 229
14.3.22 SOFT SWITCH: #22 ................................................................................. 230
14.3.23 SOFT SWITCH: #23 ................................................................................. 230

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Troubleshooting
Appendix
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14.3.24 SOFT SWITCH: #24 (Part 1).................................................................... 231
14.3.25 SOFT SWITCH: #24 (Part 2).................................................................... 232
14.3.26 SOFT SWITCH: #24 (Part 3).................................................................... 233
14.3.27 SOFT SWITCH: #25................................................................................. 233
14.3.28 SOFT SWITCH: #26................................................................................. 234
14.3.29 SOFT SWITCH: #27................................................................................. 234
14.3.30 SOFT SWITCH: #28................................................................................. 235
14.3.31 SOFT SWITCH: #29................................................................................. 236
14.3.32 SOFT SWITCH: #30................................................................................. 237
14.3.33 SOFT SWITCH: #31................................................................................. 238
14.3.34 SOFT SWITCH: #32................................................................................. 238
14.3.35 SOFT SWITCH: #33................................................................................. 239
14.3.36 SOFT SWITCH: #34................................................................................. 239
14.3.37 SOFT SWITCH: #35................................................................................. 240
14.3.38 SOFT SWITCH: #36................................................................................. 241
14.3.39 SOFT SWITCH: #37................................................................................. 242
14.3.40 SOFT SWITCH: #38................................................................................. 242
14.3.41 SOFT SWITCH: #39................................................................................. 243
14.3.42 SOFT SWITCH: #40................................................................................. 244
14.3.43 SOFT SWITCH: #41................................................................................. 245
14.3.44 SOFT SWITCH: #42................................................................................. 246
14.3.45 SOFT SWITCH: #43................................................................................. 246
14.3.46 SOFT SWITCH: #44................................................................................. 246
14.3.47 SOFT SWITCH: #45................................................................................. 247
14.3.48 SOFT SWITCH: #46................................................................................. 247
14.3.49 SOFT SWITCH: #47................................................................................. 248
14.3.50 SOFT SWITCH: #48................................................................................. 248
14.3.51 SOFT SWITCH: #49................................................................................. 249
14.3.52 SOFT SWITCH: #50................................................................................. 249
14.3.53 SOFT SWITCH: #51................................................................................. 250
14.3.54 SOFT SWITCH: #52................................................................................. 250
14.3.55 SOFT SWITCH: #53................................................................................. 251
14.3.56 SOFT SWITCH: #54................................................................................. 251
14.3.57 SOFT SWITCH: #55................................................................................. 252
14.3.58 SOFT SWITCH: #56................................................................................. 252
14.3.59 SOFT SWITCH: #57................................................................................. 252
14.3.60 SOFT SWITCH: #58................................................................................. 253

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14.3.61 SOFT SWITCH: #59 (Part 1) ....................................................................254
14.3.62 SOFT SWITCH: #59 (Part 2) ....................................................................255
14.3.63 SOFT SWITCH: #59 (Part 3) ....................................................................256
14.3.64 SOFT SWITCH: #60 ................................................................................. 257
14.3.65 SOFT SWITCH: #61 ................................................................................. 257
14.3.66 SOFT SWITCH: #62 ................................................................................. 258
14.3.67 SOFT SWITCH: #63 ................................................................................. 258
14.3.68 SOFT SWITCH: #64 ................................................................................. 259
15. Fax Protocols ......................................................................................................260
15.1 G3 ECM (G3 Error Correction Mode)...............................................................260
15.2 Line control.......................................................................................................261
15.2.1 Procedure of G3 mode communication.....................................................261
15.3 Table of reference code ....................................................................................262
15.4 How to analyze the T30 protocol monitor.........................................................263
Troubleshooting
16. Jam display .........................................................................................................271
16.1 Misfeed display.................................................................................................271
16.1.1 Misfeed display resetting procedure .........................................................271
16.2 Sensor layout....................................................................................................272
16.3 Solution.............................................................................................................273
16.3.1 Initial check items......................................................................................273
16.3.2 Misfeed at tray 2 paper feed section .........................................................273
16.3.3 Misfeed at fusing section...........................................................................274
16.3.4 Misfeed at transfer section........................................................................275
16.3.5 Misfeed at duplex paper feed section........................................................276
16.3.6 Misfeed at duplex paper transport section ................................................277
16.3.7 Misfeed at tray1 paper feed section..........................................................278
16.3.8 Misfeed at horizontal transport section .....................................................278
16.3.9 Misfeed at exit section...............................................................................279
16.3.10 Misfeed at switch back section..................................................................279
17. Malfunction code.................................................................................................280
17.1 Trouble codes (service call)..............................................................................280
17.1.1 Trouble code list........................................................................................280
17.2 Resetting a malfunction....................................................................................283
17.3 Solution.............................................................................................................284
17.3.1 0010: Color PC drum motor malfunction...................................................284
17.3.2 0017: Transport motor malfunction ...........................................................284

MainAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 May 2008
xii
17.3.3 0018: K developing motor malfunction...................................................... 285
17.3.4 001B: Color developing motor malfunction............................................... 285
17.3.5 0045: Scanner cooling fan motor malfunction........................................... 286
17.3.6 0046: Fusing fan motor malfunction.......................................................... 286
17.3.7 004A: Duplex cooling fan motor malfunction ............................................ 286
17.3.8 004C: Ozone ventilation fan motor malfunction........................................ 287
17.3.9 004E: DC power supply fan motor malfunction......................................... 287
17.3.10 0060: Fusing motor malfunction ............................................................... 288
17.3.11 0094: 2nd image transfer pressure/retraction failure ................................ 288
17.3.12 0096: 1st image transfer pressure/retraction failure ................................. 289
17.3.13 0300: Polygon motor malfunction ............................................................. 289
17.3.14 0310: Laser malfunction ........................................................................... 290
17.3.15 0500: Heating roller warm-up failure......................................................... 290
17.3.16 0502: Thermistor open-circuit failure........................................................ 290
17.3.17 0503: Thermistor resistance failure .......................................................... 290
17.3.18 0510: Abnormally low heating roller temperature..................................... 290
17.3.19 0520: Abnormally high heating roller temperature.................................... 290
17.3.20 0F50: OHP sensor malfunction................................................................. 290
17.3.21 0F52: Toner level sensor /Y malfunction................................................... 291
17.3.22 0F53: Toner level sensor /M malfunction .................................................. 291
17.3.23 0F54: Toner level sensor /C malfunction................................................... 291
17.3.24 0F55: Toner level sensor /K malfunction................................................... 291
17.3.25 13C0: Print control board malfunction ...................................................... 291
17.3.26 13DD: Backup data error.......................................................................... 291
17.3.27 13F0: Engine control failure...................................................................... 292
17.3.28 13E2: Engine flash ROM write error......................................................... 292
17.3.29 13E3: Engine flash ROM device fault ....................................................... 292
17.3.30 SCANNER MOTION ERROR CHECK SCANNER LOCK........................ 292
17.3.31 14A3: IR lamp malfunction........................................................................ 293
17.3.32 1038: Engine connect error ...................................................................... 293
17.3.33 3FFF: Flash ROM write error.................................................................... 294
18. Power supply troubles......................................................................................... 295
18.1 Machine is not energized at all (DCPU operation check)................................. 295
18.2 Control panel indicators do not light................................................................. 295
18.3 Fusing heaters do not operate ......................................................................... 296
19. Image quality problems....................................................................................... 297
19.1 Printer system .................................................................................................. 297
19.1.1 White lines/bands, colored lines/bands in sub scan direction................... 297

Ou
MaintenanceAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 May 2008
xiii
19.1.2 White lines/bands, colored lines/bands in main scan direction.................298
19.1.3 Uneven density in sub scan direction........................................................299
19.1.4 Uneven density in main scan direction......................................................300
19.1.5 Low image density ....................................................................................301
19.1.6 Gradation reproduction failure...................................................................302
19.1.7 Foggy background.....................................................................................303
19.1.8 Poor color reproduction.............................................................................304
19.1.9 Void areas, white spots.............................................................................305
19.1.10 Colored spots............................................................................................306
19.1.11 Blurred image............................................................................................307
19.1.12 Blank copy, black copy..............................................................................308
19.1.13 Incorrect color image registration..............................................................309
19.1.14 Poor fusing performance, offset................................................................310
19.1.15 Brush effect...............................................................................................311
19.1.16 Back marking ............................................................................................312
19.1.17 Uneven pitch.............................................................................................313
20. FAX error.............................................................................................................314
20.1 Communication error........................................................................................314
20.2 Outline .............................................................................................................. 314
20.3 Error occurring during transmission..................................................................315
20.3.1 Error occurring during reception ...............................................................315
20.4 Error code.........................................................................................................316
20.4.1 Reception..................................................................................................316
20.4.2 Transmission.............................................................................................318
Appendix
21. Parts layout drawing............................................................................................321
21.1 Main body.........................................................................................................321
21.2 Auto Document Feeder Unit .............................................................................324
21.3 Lower feeder unit (option).................................................................................325
22. Connector layout drawing....................................................................................326

SERVICE MANUAL
2008.05
Ver. 1.0
FIELD SERV

SERVICE MANUAL
2008.05
Ver. 1.0
FIELD SERVICE