Konica Minolta BIZHUB C20 User manual

SERVICE MANUAL
2008.092008.09
Ver. 1.0Ver. 1.0
FIELD SERVI

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
bizhub C20 Main body
Outline ............................................................................................................................1
Maintenance ...................................................................................................................5
Adjustment/Setting......................................................................................................115
Troubleshooting...........................................................................................................321
Appendix.....................................................................................................................379
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

SERVICE MANUAL
2008.09
Ver. 1.0
FIELD SERVICE
Main body

bizhub C20Outline
MaintenanceAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 Sep. 2008
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CONTENTS
bizhub C20 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
3.4.8Replacing 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
5. Remote Setup Utility .............................................................................................29
5.1 About RSU..........................................................................................................29
5.2 Outline ................................................................................................................29
5.2.1 Corresponding OS ......................................................................................29
5.2.2 PC environments.........................................................................................29
5.3 Connection methods...........................................................................................29
5.3.1 Remote connection (Phone line connection) ..............................................29
5.3.2 Local connection (USB connection)............................................................30

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5.4 Setup.................................................................................................................. 30
5.4.1 Setup of PC ................................................................................................ 30
5.4.2 Connection and access of user machine.................................................... 30
5.5 Operation............................................................................................................ 32
5.5.1 Job list......................................................................................................... 32
5.5.2 New (Dial setting) ....................................................................................... 32
5.5.3 Open File.................................................................................................... 35
5.5.4 Update Firmware........................................................................................ 36
5.5.5 Clear Memory Data .................................................................................... 37
5.5.6 Clear SRAM Data....................................................................................... 38
5.6 Function setting.................................................................................................. 39
5.7 Troubleshooting.................................................................................................. 41
5.7.1 Error message list....................................................................................... 41
6. Firmware upgrade................................................................................................. 42
6.1 Controller firmware upgrading............................................................................ 42
6.1.1 Preparations for firmware upgrading........................................................... 42
6.1.2 Upgrading procedure.................................................................................. 42
6.2 Firmware upgrading procedure by updater ........................................................ 44
6.2.1 Updating method ........................................................................................ 44
7. Other..................................................................................................................... 57
7.1 Disassembly/adjustment prohibited items.......................................................... 57
7.2 Disassembly/assembly/cleaning list (other parts) .............................................. 58
7.2.1 Disassembly/assembly parts list................................................................. 58
7.2.2 Cleaning parts list....................................................................................... 59
7.3 Disassembly/assembly procedure...................................................................... 60
7.3.1 Front cover.................................................................................................. 60
7.3.2 Right front cover.......................................................................................... 60
7.3.3 Operation panel.......................................................................................... 61
7.3.4 Left cover.................................................................................................... 61
7.3.5 Rear cover .................................................................................................. 62
7.3.6 Right rear cover .......................................................................................... 62
7.3.7 Tray 2.......................................................................................................... 63
7.3.8MFP board/2 (MFPB/2)............................................................................... 63
7.3.9 NCU board (NCUB).................................................................................... 64
7.3.10 MFP board/1 (MFPB/1)............................................................................... 65
7.3.11 Print control board (PRCB)......................................................................... 66
7.3.12 DC power supply (DCPU)........................................................................... 68
7.3.13 High voltage unit/1 (HV1)............................................................................ 71

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7.3.14 High voltage unit/2 (HV2)............................................................................72
7.3.15 Relay board (REYB)....................................................................................73
7.3.16 Toner level sensor board (TLSB) ................................................................75
7.3.17 PH unit........................................................................................................78
7.3.18Driving unit..................................................................................................85
7.3.19 Scanner unit................................................................................................86
7.3.20 Exposure unit..............................................................................................87
7.3.21 Backup Battery............................................................................................89
7.3.22 PWB box.....................................................................................................90
7.3.23 PWB box lower cover..................................................................................94
7.3.24 Color PC drum motor (M2)..........................................................................94
7.3.25 Transport motor (M3) ..................................................................................95
7.3.26 Fusing motor (M4).......................................................................................95
7.3.27 K Developing motor (M5) ............................................................................95
7.3.28Toner supply motor/Y, M (M6).....................................................................96
7.3.29 Toner supply motor/C, K (M7).....................................................................96
7.3.30 Scanner motor (M100)................................................................................97
7.3.31 Media feed clutch assy................................................................................99
7.3.32 Registration roller clutch (CL3)..................................................................100
7.3.33 1st image transfer pressure/retraction clutch (CL4)..................................101
7.3.34 2nd image transfer pressure/retraction clutch (CL5).................................102
7.3.35 Switchback roller feed clutch (CL11).........................................................103
7.3.36 Switchback roller reverse clutch (CL12)....................................................105
7.3.37 Duplex transport roller clutch (CL13) ........................................................106
7.3.38Temperature/ humidity sensor (TEM/HUMS)............................................108
7.3.39 IDC sensor board/Re, IDC sensor board/Fr (IDCSB/R, IDCSB/L)............109
7.3.40 Speaker (SP1)...........................................................................................110
7.3.41 Memory (DIMM)........................................................................................110
7.3.42 Hard disk...................................................................................................111
7.4 Cleaning procedure ..........................................................................................112
7.4.1 Tray 1 feed roller........................................................................................112
7.4.2 Tray 2 feed roller........................................................................................112
7.4.3 Vertical transport roller..............................................................................113
7.4.4 Laser irradiation section............................................................................113
Adjustment/Setting
8. How to use the adjustment section .....................................................................115
9. Description of the control panel...........................................................................116

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9.1 Control panel display........................................................................................ 116
9.1.1 Main screen.............................................................................................. 116
9.1.2 Print screen............................................................................................... 116
9.1.3 Toner supply screen.................................................................................. 117
10. REPORT/STATUS mode..................................................................................... 118
10.1 REPORT/STATUS mode function tree ............................................................. 118
10.2 TOTAL PRINT................................................................................................... 119
10.2.1 TOTAL PRINT........................................................................................... 119
10.2.2 MONO COPY ........................................................................................... 119
10.2.3 COLOR COPY.......................................................................................... 119
10.2.4 MONO PRINT........................................................................................... 119
10.2.5 COLOR PRINT......................................................................................... 119
10.2.6 FAX PRINT ............................................................................................... 119
10.2.7 TOTAL SCAN............................................................................................ 119
10.3 SUPPLY STATUS ............................................................................................. 120
10.3.1 C TONER.................................................................................................. 120
10.3.2 M TONER ................................................................................................. 120
10.3.3 Y TONER.................................................................................................. 120
10.3.4 K TONER.................................................................................................. 120
10.3.5 C I-UNIT.................................................................................................... 120
10.3.6 M I-UNIT................................................................................................... 120
10.3.7 Y I-UNIT.................................................................................................... 120
10.3.8K I-UNIT.................................................................................................... 120
10.4 TX/RX RESULT................................................................................................ 121
10.5 REPORT........................................................................................................... 121
10.5.1 TX RESULT REPORT............................................................................... 121
10.5.2 RX RESULT REPORT.............................................................................. 121
10.5.3 ACTIVITY REPORT.................................................................................. 121
10.5.4 MEMORY DATA LIST................................................................................ 121
10.5.5 MEMORY IMAGE PRINT ......................................................................... 121
10.5.6 FAVORITE LIST........................................................................................ 121
10.5.7 SPEED DIAL LIST.................................................................................... 122
10.5.8GROUP DIAL LIST................................................................................... 122
10.5.9 UTILITY MAP............................................................................................ 122
10.5.10 PS/PCL MENU MAP................................................................................. 122
10.5.11 CONFIGURATION PAGE.......................................................................... 122
10.5.12 PS FONT LIST.......................................................................................... 126
10.5.13 PCL FONT LIST ....................................................................................... 126

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10.5.14 DIRECTORY LIST.....................................................................................126
11. UTILITY mode.....................................................................................................127
11.1 UTILITY mode function tree..............................................................................127
11.2 MACHINE SETTING.........................................................................................131
11.2.1 AUTO PANEL RESET...............................................................................131
11.2.2 PREHEAT MODE......................................................................................131
11.2.3 ENERGY SAVE MODE.............................................................................131
11.2.4 LCD CONTRAST......................................................................................131
11.2.5 KEY SPEED..............................................................................................131
11.2.6 LANGUAGE ..............................................................................................132
11.2.7 LAMP OFF TIME ......................................................................................132
11.2.8LAMP WARMUP TIME .............................................................................132
11.2.9 BUZZER VOLUME....................................................................................132
11.2.10 INITIAL MODE..........................................................................................133
11.2.11 TONER EMPTY........................................................................................133
11.2.12 TONER NEAR EMPTY.............................................................................133
11.2.13 I-UNIT NEAR EMPTY...............................................................................133
11.2.14 AUTO CONTINUE.....................................................................................133
11.2.15 CALIBRATION ..........................................................................................134
11.3 PAPER SETUP.................................................................................................135
11.3.1 TRAY1 PAPER..........................................................................................135
11.3.2 TRAY2 PAPER..........................................................................................135
11.4 ADMIN. MANAGEMENT ..................................................................................136
11.4.1 ADMINISTRATOR NO...............................................................................136
11.4.2 REMOTE MONITOR.................................................................................136
11.4.3 NETWORK SETTING...............................................................................136
11.4.4 E-MAIL SETTING .....................................................................................142
11.4.5 LDAP SETTING........................................................................................145
11.4.6 CAMERA DIRECT ....................................................................................147
11.4.7 USB SETTING..........................................................................................148
11.4.8COMM. SETTING.....................................................................................148
11.4.9 USER SETTING .......................................................................................149
11.4.10 AUTO REDIAL ..........................................................................................150
11.4.11 SUPPLIES REPLACE...............................................................................150
11.5 COPY SETTING...............................................................................................151
11.5.1 PAPER PRIORITY ....................................................................................151
11.5.2 QUALITY PRIORITY.................................................................................151
11.5.3 DENSITY PRIORITY ................................................................................151

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11.5.4 DENSITY LEVEL...................................................................................... 151
11.5.5 OUTPUT PRIORITY................................................................................. 152
11.5.6 4IN1 COPY ORDER................................................................................. 152
11.5.7 DUPLEX COPY........................................................................................ 152
11.6 DIAL REGISTER.............................................................................................. 153
11.6.1 FAVORITE ................................................................................................ 153
11.6.2 SPEED DIAL............................................................................................. 153
11.6.3 GROUP DIAL............................................................................................ 153
11.7 FAX TX OPERATION ....................................................................................... 153
11.7.1 DENSITY LEVEL...................................................................................... 153
11.7.2 QUALITY PRIORITY................................................................................. 154
11.7.3 DEFULT TX............................................................................................... 154
11.7.4 HEADER................................................................................................... 154
11.8FAX RX OPERATION....................................................................................... 155
11.8.1 MEMORY RX MODE................................................................................ 155
11.8.2 NO. of RINGS........................................................................................... 155
11.8.3 REDUCTION RX ...................................................................................... 155
11.8.4 RX PRINT................................................................................................. 160
11.8.5 RX MODE................................................................................................. 160
11.8.6 FORWARD ............................................................................................... 161
11.8.7 FOOTER................................................................................................... 161
11.8.8SELECT TRAY.......................................................................................... 162
11.9 REPORTING.................................................................................................... 162
11.9.1 ACTIVITY REPORT.................................................................................. 162
11.9.2 TX RESULT REPORT............................................................................... 162
11.9.3 RX RESULT REPORT.............................................................................. 162
11.10 SCAN SETTING............................................................................................... 163
11.10.1 RESOLUTION .......................................................................................... 163
11.10.2 IMAGE FORMAT....................................................................................... 163
11.10.3 CODING METHOD................................................................................... 163
11.10.4 FILE SIZE................................................................................................. 163
11.10.5 QUALITY PRIORITY................................................................................. 163
11.10.6 DENSITY LEVEL...................................................................................... 164
11.11 DIRECT PRINT ................................................................................................ 164
11.11.1 IMAGE QUALITY...................................................................................... 164
11.11.2 PAPER SIZE............................................................................................. 164
11.11.3 N-UP LAYOUT.......................................................................................... 164
12. PS/PCL PRINT mode ......................................................................................... 165

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12.1 ...........165
12.2 PROOF/PRINT MENU......................................................................................167
12.3 PAPER MENU ..................................................................................................167
12.3.1 ANY TRAY SETTING................................................................................167
12.3.2 TRAY CHAINING ......................................................................................168
12.3.3 TRAY MAPPING .......................................................................................168
12.3.4 DUPLEX....................................................................................................169
12.3.5 COPIES ....................................................................................................169
12.3.6 COLLATE..................................................................................................169
12.4 QUALITY MENU...............................................................................................170
12.4.1 COLOR MODE .........................................................................................170
12.4.2 BRIGHTNESS...........................................................................................170
12.4.3 HALFTONE...............................................................................................170
12.4.4 EDGE ENHANCEMENT...........................................................................171
12.4.5 EDGE STRENGTH...................................................................................171
12.4.6 ECONOMY PRINT....................................................................................172
12.4.7 PCL SETTING ..........................................................................................172
12.4.8PS SETTING.............................................................................................174
12.4.9 CALIBRATION ..........................................................................................178
12.5 SYS DEFAULT MENU ......................................................................................179
12.5.1 EMULATION .............................................................................................179
12.5.2 PAPER ...................................................................................................... 181
12.5.3 GRAYSCALE PAGE..................................................................................182
12.5.4 STARTUP OPTIONS.................................................................................182
12.5.5 HOLD JOB TIMEOUT...............................................................................183
12.5.6 HDD FORMAT ..........................................................................................183
12.5.7 CARD FORMAT........................................................................................183
13. User service mode..............................................................................................184
13.1 User service mode function tree.......................................................................184
13.2 FAX MAINTENANCE........................................................................................187
13.3 ADJUST............................................................................................................187
13.3.1 TOP ADJUSTMENT..................................................................................187
13.3.2 LEFT ADJ. (FRONT).................................................................................187
13.3.3 LEFT ADJ. (BACK) ...................................................................................187
13.3.4 TRANSFER POWER................................................................................187
13.4 AIDC MODE .....................................................................................................187
13.5 CRU USAGE.....................................................................................................187
13.5.1 TRANSFER BELT.....................................................................................187

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13 ............. 187
13.5.3 TRANSFER ROLLER............................................................................... 187
13.6 SUPPLIES REPLACE...................................................................................... 187
13.7 MAINTENANCE MENU.................................................................................... 188
13.7.1 PRINT MENU ........................................................................................... 188
13.7.2 IMG ADJ THICK ....................................................................................... 189
13.7.3 IMG ADJ BLACK....................................................................................... 189
14. SERVICE MODE................................................................................................. 190
14.1 SERVICE MODE entry procedure.................................................................... 190
14.2 SERVICE MODE function tree......................................................................... 190
14.3 SERVICE’S CHOICE........................................................................................ 195
14.3.1 TX SPEED................................................................................................ 195
14.3.2 RX SPEED................................................................................................ 195
14.3.3 TX LEVEL................................................................................................. 195
14.3.4 RX LEVEL................................................................................................. 195
14.3.5 DTMF LEVEL............................................................................................ 195
14.3.6 CNG LEVEL.............................................................................................. 196
14.3.7 CED LEVEL.............................................................................................. 196
14.3.8ECM MODE.............................................................................................. 196
14.3.9 CODING SCHEME................................................................................... 196
14.3.10 TONER EMPTY REPORT........................................................................ 197
14.3.11 PROTOCOL REPORT.............................................................................. 197
14.3.12 TWAIN TIMEOUT..................................................................................... 197
14.3.13 ENERGY SAVE MODE ............................................................................ 198
14.3.14 ENABLE WARNING ................................................................................. 198
14.4 ADJUST ........................................................................................................... 198
14.4.1 CCD MAIN ZOOM.................................................................................... 199
14.4.2 CCD SUB ZOOM...................................................................................... 200
14.4.3 CCD MAIN REGIST.................................................................................. 201
14.4.4 CCD SUB REGIST................................................................................... 202
14.4.5 ADF 1ST SUB ZOOM............................................................................... 203
14.4.6 ADF 1ST MAIN REG................................................................................ 203
14.4.7 ADF 1ST SUB REG.................................................................................. 204
14.4.8ADF 2ND SUB ZOOM.............................................................................. 204
14.4.9 ADF 2ND MAIN REG................................................................................ 204
14.4.10 ADF 2ND SUB REG................................................................................. 205
14.4.11 ADF LOOP................................................................................................ 205
14.4.12 FLICKER................................................................................................... 205

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14.4.13 TOP ADJUSTMENT..................................................................................206
14.4.14 LEFT ADJ. (FRONT).................................................................................206
14.4.15 LEFT ADJ. (BACK) ...................................................................................206
14.4.16 TRANSFER POWER................................................................................207
14.4.17 IMG ADJ THICK........................................................................................208
14.4.18IMG ADJ BLACK.......................................................................................208
14.4.19 IMAGE ADJ PARAM .................................................................................208
14.4.20 MAXIMUM DENSITY................................................................................209
14.4.21 FUSER SPEED.........................................................................................209
14.4.22 TEMPERATURE .......................................................................................210
14.4.23 AIDC MODE..............................................................................................210
14.4.24 SUPPLIES REPLACE...............................................................................210
14.4.25 BK CLEAR................................................................................................211
14.5 COUNTER........................................................................................................211
14.5.1 TOTAL PRINT ...........................................................................................211
14.5.2 FAX COUNTER.........................................................................................212
14.5.3 SCAN COUNTER .....................................................................................212
14.5.4 TRAY COUNTER......................................................................................212
14.5.5 PAPER SIZE COUNTER ..........................................................................212
14.5.6 PAPER TYPE COUNTER.........................................................................213
14.5.7 APPLICATION COUNT. ............................................................................213
14.5.8SUPPLIES STATUS..................................................................................213
14.5.9 CRU USAGE.............................................................................................213
14.5.10 JAM COUNTER........................................................................................214
14.5.11 TROUBLE COUNTER ..............................................................................214
14.6 DISPLAY...........................................................................................................214
14.6.1 MAIN F/W VER.........................................................................................214
14.6.2 ENGINE F/W VER. ...................................................................................214
14.6.3 MAIN RAM SIZE.......................................................................................214
14.6.4 SERIAL NO...............................................................................................214
14.6.5 PP F/W VER. ............................................................................................214
14.6.6 PP BOOT VER..........................................................................................214
14.6.7 PRINTER RAM SIZE ................................................................................215
14.6.8HARD DISK ..............................................................................................215
14.6.9 CARD........................................................................................................215
14.7 FUNCTION.......................................................................................................216
14.7.1 PAPER FEED TEST .................................................................................216
14 7 2 PRN TEST PATTERN ...........................................216

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14.7.3 ADF FE
14.7.4 COPY ADF GLASS .................................................................................. 217
14.7.5 FAX RES. COPY TEST ............................................................................ 217
14.7.6 SCAN TEST.............................................................................................. 217
14.7.7 PRINTER TEST........................................................................................ 218
14.7.8ADF TEST ................................................................................................ 220
14.8SOFT SWITCH................................................................................................. 221
14.8.1 KEY DEFINITION FOR SOFT SWITCH................................................... 221
14.9 REPORT........................................................................................................... 221
14.9.1 SERVICE DATA LIST................................................................................ 221
14.9.2 ERROR CODE LIST................................................................................. 224
14.9.3 T.30 PROTOCOL LIST.............................................................................. 225
14.10 ADMIN. REGISTRATION ................................................................................. 227
14.11 FIXED ZOOM CHANGE................................................................................... 227
14.12 FACTORY TEST............................................................................................... 227
14.13 CLEAR DATA.................................................................................................... 228
14.13.1 SRAM CLEAR .......................................................................................... 228
14.13.2 MEMORY CLEAR..................................................................................... 228
14.14 PS/PCL............................................................................................................. 229
14.14.1 PRINT MENU ........................................................................................... 229
14.14.2 SOFT SWITCH......................................................................................... 236
15. SOFT SWITCH set ............................................................................................. 237
15.1 Description ....................................................................................................... 237
15.2 Default setting................................................................................................... 237
15.2.1 Country for each marketing area.............................................................. 237
15.2.2 Soft switch list........................................................................................... 238
15.2.3 Default soft switch setting for each market area....................................... 242
15.3 Soft switch definition......................................................................................... 264
15.3.1 SOFT SWITCH: #01................................................................................. 264
15.3.2 SOFT SWITCH: #02................................................................................. 265
15.3.3 SOFT SWITCH: #03................................................................................. 266
15.3.4 SOFT SWITCH: #04................................................................................. 267
15.3.5 SOFT SWITCH: #05................................................................................. 268
15.3.6 SOFT SWITCH: #06................................................................................. 269
15.3.7 SOFT SWITCH: #07................................................................................. 269
15.3.8SOFT SWITCH: #08................................................................................. 270
15.3.9 SOFT SWITCH: #09................................................................................. 270
15.3.10 SOFT SWITCH: #10................................................................................. 271

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15.3.11 SOFT SWITCH: #11 .................................................................................272
15.3.12 SOFT SWITCH: #12 .................................................................................273
15.3.13 SOFT SWITCH: #13 .................................................................................274
15.3.14 SOFT SWITCH: #14 .................................................................................274
15.3.15 SOFT SWITCH: #15 .................................................................................275
15.3.16 SOFT SWITCH: #16 .................................................................................275
15.3.17 SOFT SWITCH: #17 .................................................................................276
15.3.18SOFT SWITCH: #18.................................................................................277
15.3.19 SOFT SWITCH: #19 .................................................................................278
15.3.20 SOFT SWITCH: #20 .................................................................................278
15.3.21 SOFT SWITCH: #21 .................................................................................279
15.3.22 SOFT SWITCH: #22 .................................................................................280
15.3.23 SOFT SWITCH: #23 .................................................................................280
15.3.24 SOFT SWITCH: #24 (Part 1) ....................................................................281
15.3.25 SOFT SWITCH: #24 (Part 2) ....................................................................282
15.3.26 SOFT SWITCH: #24 (Part 3) ....................................................................283
15.3.27 SOFT SWITCH: #25 .................................................................................283
15.3.28SOFT SWITCH: #26 .................................................................................284
15.3.29 SOFT SWITCH: #27 .................................................................................284
15.3.30 SOFT SWITCH: #28.................................................................................285
15.3.31 SOFT SWITCH: #29 .................................................................................286
15.3.32 SOFT SWITCH: #30 .................................................................................287
15.3.33 SOFT SWITCH: #31 .................................................................................288
15.3.34 SOFT SWITCH: #32 .................................................................................288
15.3.35 SOFT SWITCH: #33 .................................................................................289
15.3.36 SOFT SWITCH: #34 .................................................................................289
15.3.37 SOFT SWITCH: #35 .................................................................................290
15.3.38SOFT SWITCH: #36 .................................................................................291
15.3.39 SOFT SWITCH: #37 .................................................................................292
15.3.40 SOFT SWITCH: #38.................................................................................292
15.3.41 SOFT SWITCH: #39 .................................................................................293
15.3.42 SOFT SWITCH: #40 .................................................................................294
15.3.43 SOFT SWITCH: #41 .................................................................................295
15.3.44 SOFT SWITCH: #42 .................................................................................296
15.3.45 SOFT SWITCH: #43 .................................................................................296
15.3.46 SOFT SWITCH: #44 .................................................................................296
15.3.47 SOFT SWITCH: #45 .................................................................................297

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15.3.48SOFT SWITCH: #46................................................................................. 297
15.3.49 SOFT SWITCH: #47................................................................................. 298
15.3.50 SOFT SWITCH: #48................................................................................. 298
15.3.51 SOFT SWITCH: #49................................................................................. 299
15.3.52 SOFT SWITCH: #50................................................................................. 299
15.3.53 SOFT SWITCH: #51................................................................................. 300
15.3.54 SOFT SWITCH: #52................................................................................. 300
15.3.55 SOFT SWITCH: #53................................................................................. 301
15.3.56 SOFT SWITCH: #54................................................................................. 301
15.3.57 SOFT SWITCH: #55................................................................................. 302
15.3.58SOFT SWITCH: #56................................................................................. 302
15.3.59 SOFT SWITCH: #57................................................................................. 302
15.3.60 SOFT SWITCH: #58................................................................................. 303
15.3.61 SOFT SWITCH: #59 (Part 1).................................................................... 304
15.3.62 SOFT SWITCH: #59 (Part 2).................................................................... 305
15.3.63 SOFT SWITCH: #59 (Part 3).................................................................... 306
15.3.64 SOFT SWITCH: #60................................................................................. 307
15.3.65 SOFT SWITCH: #61................................................................................. 307
15.3.66 SOFT SWITCH: #62................................................................................. 308
15.3.67 SOFT SWITCH: #63................................................................................. 308
15.3.68SOFT SWITCH: #64................................................................................. 309
16. Fax Protocols...................................................................................................... 310
16.1 G3 ECM (G3 Error Correction Mode)............................................................... 310
16.2 Line control....................................................................................................... 311
16.2.1 Procedure of G3 mode communication.................................................... 311
16.3 Table of reference code.................................................................................... 312
16.4 How to analyze the T30 protocol monitor......................................................... 313
Troubleshooting
17. Jam display......................................................................................................... 321
17.1 Misfeed display................................................................................................. 321
17.1.1 Misfeed display resetting procedure......................................................... 321
17.2 Sensor layout.................................................................................................... 322
17.3 Solution ............................................................................................................ 323
17.3.1 Initial check items ..................................................................................... 323
17.3.2 Misfeed at tray 2 paper feed section......................................................... 323
17.3.3 Misfeed at fusing section .......................................................................... 324
17.3.4 Misfeed at transfer section........................................................................ 325

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xiii
17.3.5 Misfeed at duplex paper feed section........................................................326
17.3.6 Misfeed at duplex paper transport section................................................327
17.3.7 Misfeed at tray1 paper feed section..........................................................328
17.3.8Misfeed at horizontal transport section .....................................................328
17.3.9 Misfeed at exit section...............................................................................329
17.3.10 Misfeed at switch back section..................................................................329
18. Malfunction code.................................................................................................330
18.1 Trouble codes (service call)..............................................................................330
18.1.1 Trouble code list........................................................................................330
18.2 Resetting a malfunction....................................................................................334
18.3 Solution.............................................................................................................335
18.3.1 0010: Color PC drum motor malfunction...................................................335
18.3.2 0017: Transport motor malfunction ...........................................................335
18.3.3 0018: K developing motor malfunction......................................................336
18.3.4 001B: Color developing motor malfunction ...............................................336
18.3.5 0045: Defogger fan motor malfunction......................................................337
18.3.6 0046: Fusing fan motor malfunction..........................................................337
18.3.7 004A: Duplex cooling fan motor malfunction.............................................337
18.3.8004C: Ozone ventilation fan motor malfunction ........................................338
18.3.9 004E: DC power supply fan motor malfunction.........................................338
18.3.10 0060: Fusing motor malfunction................................................................339
18.3.11 0094: 2nd image transfer pressure/retraction failure.................................339
18.3.12 0096: 1st image transfer pressure/retraction failure..................................340
18.3.13 0300: Polygon motor malfunction..............................................................340
18.3.14 0310: Laser malfunction............................................................................341
18.3.15 0500: Heating roller warm-up failure.........................................................341
18.3.16 0502: Thermistor open-circuit failure ........................................................341
18.3.17 0503: Thermistor resistance failure...........................................................341
18.3.180510: Abnormally low heating roller temperature .....................................341
18.3.19 0520: Abnormally high heating roller temperature....................................341
18.3.20 0F50: OHP sensor malfunction.................................................................341
18.3.21 0F52: Toner level sensor /Y malfunction...................................................342
18.3.22 0F53: Toner level sensor /M malfunction ..................................................342
18.3.23 0F54: Toner level sensor /C malfunction...................................................342
18.3.24 0F55: Toner level sensor /K malfunction...................................................342
18.3.25 13C0: Print control board malfunction.......................................................342
18.3.26 13DD: Backup data error ..........................................................................342
18.3.27 13F0: Engine control failure......................................................................343

b C20
Adjustment / Se
Troubleshooting
Appendix
Field Service Ver. 1.0 Sep. 2008
xiv
18.3.2813E2: Engine flash ROM write error......................................................... 343
18.3.29 13E3: Engine flash ROM device fault....................................................... 343
18.3.30 SCANNER MOTION ERROR CHECK SCANNER LOCK........................ 343
18.3.31 14A3: IR lamp malfunction........................................................................ 344
18.3.32 1038: Engine connect error ...................................................................... 344
18.3.33 3FFF: Flash ROM write error.................................................................... 345
18.3.34 4FFF: Controller connect error ................................................................. 345
18.3.35 C002: RAM error at startup (standard memory)
C003: RAM error at startup (expanded memory) ..................................... 346
18.3.36 C013: MAC address error at startup
C015: BOOT ROM error at startup
C022: NVRAM error at startup ................................................................. 346
18.3.37 C025: Controller ROM error (Configuration information error)
C026: Controller ROM error (Access error)
C027: Controller ROM error (Data error).................................................. 347
18.3.38C050: HDD access error........................................................................... 347
18.3.39 C051: HDD full error................................................................................. 348
18.3.40 C052: Compact flash access error ........................................................... 348
18.3.41 C053: Compact flash full error.................................................................. 349
18.3.42 C060: Firmware update error.................................................................... 349
18.3.43 FFFF: Interface communication error ....................................................... 350
19. Power supply troubles......................................................................................... 351
19.1 Machine is not energized at all (DCPU operation check)................................. 351
19.2 Control panel indicators do not light................................................................. 351
19.3 Fusing heaters do not operate ......................................................................... 352
20. Image quality problems....................................................................................... 353
20.1 Printer system .................................................................................................. 353
20.1.1 White lines/bands, colored lines/bands in sub scan direction................... 353
20.1.2 White lines/bands, colored lines/bands in main scan direction................. 354
20.1.3 Uneven density in sub scan direction ....................................................... 355
20.1.4 Uneven density in main scan direction ..................................................... 356
20.1.5 Low image density.................................................................................... 357
20.1.6 Gradation reproduction failure .................................................................. 358
20.1.7 Foggy background .................................................................................... 359
20.1.8Poor color reproduction............................................................................. 360
20.1.9 Void areas, white spots............................................................................. 361
20.1.10 Colored spots............................................................................................ 362
20.1.11 Blurred image ........................................................................................... 363
20.1.12 Blank copy, black copy.............................................................................. 364

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MaintenanceAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 Sep. 2008
xv
20.1.13 Incorrect color image registration..............................................................365
20.1.14 Poor fusing performance, offset................................................................366
20.1.15 Brush effect...............................................................................................367
20.1.16 Back marking ............................................................................................368
20.1.17 Uneven pitch .............................................................................................369
21. FAX error.............................................................................................................370
21.1 Communication error........................................................................................370
21.2 Outline ..............................................................................................................370
21.3 Error occurring during transmission..................................................................371
21.3.1 Error occurring during reception ...............................................................371
21.4 Error code.........................................................................................................372
21.4.1 Reception..................................................................................................372
21.4.2 Transmission.............................................................................................374
22. Scan error ...........................................................................................................377
Appendix
23. Parts layout drawing............................................................................................379
23.1 Main body.........................................................................................................379
23.2 Auto Document Feeder Unit .............................................................................382
23.3 Lower feeder unit (option).................................................................................383
24. Connector layout drawing....................................................................................384

SERVICE MANUAL
2008.09
Ver. 1.0
FIELD SERV

SERVICE MANUAL
2008.09
Ver. 1.0
FIELD SERVICE