Konica Minolta Magicolor 2490 MF User manual

SERVICE MANUAL
2006.072006.07
Ver. 1.0Ver. 1.0
FIELD SERVICE
magicolor 2490MF

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-18
MEASURES TO TAKE IN CASE OF AN ACCIDENT ....................................................S-20
Composition of the service manual ................................................................................. C-1
Notation of the service manual ....................................................................................... C-2
magicolor 2490MF Main Unit
General...........................................................................................................................1
Maintenance ................................................................................................................... 7
Adjustment/Setting........................................................................................................77
Troubleshooting...........................................................................................................227
Appendix.....................................................................................................................281
Auto Document Feeder Unit
General...........................................................................................................................1
Maintenance ................................................................................................................... 3
Adjustment/Setting........................................................................................................11
Troubleshooting.............................................................................................................19
Lower Feeder Unit
General...........................................................................................................................1
Maintenance ................................................................................................................... 3
Troubleshooting.............................................................................................................11
Duplex Option
General...........................................................................................................................1
Maintenance ................................................................................................................... 3
Troubleshooting.............................................................................................................13

SERVICE MANUAL
2006.07
Ver. 1.0
FIELD SERVICE
Main Un
magicolor 2490MF

magicolor 2490MFGeneralMaintenanceAdjustment / Setting
Troubleshooting
Appendix
Field Service Ver. 1.0 Jul. 2006
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CONTENTS
magicolor 2490MF Main Unit
General
1. System configuration...............................................................................................1
2. Product specifications ............................................................................................. 2
2.1 Built-in Controllers ................................................................................................4
2.2 Fax specifications .................................................................................................5
Maintenance
3. Periodic check.........................................................................................................7
3.1 Maintenance parts................................................................................................7
3.1.1 Replacement parts........................................................................................7
3.1.2 Cleaning parts...............................................................................................8
3.2 Concept of parts life..............................................................................................9
3.3 Maintenance procedure......................................................................................10
3.3.1 Paper feed roller..........................................................................................10
3.3.2 PH window..................................................................................................13
3.3.3 Toner cartridge (C/M/Y/Bk) .........................................................................13
3.3.4 Drum cartridge............................................................................................16
3.3.5 Transfer belt unit..........................................................................................17
3.3.6 2nd transfer roller........................................................................................18
3.3.7 Fusing unit ..................................................................................................20
4. Firmware upgrade.................................................................................................25
4.1 Controller firmware upgrading ............................................................................25
4.1.1 Preparations for firmware upgrading...........................................................25
4.1.2 Upgrading procedure ..................................................................................25
4.2 NIC firmware upgrading......................................................................................27
4.2.1 Preparations for firmware upgrading...........................................................27
4.2.2 Upgrading procedure ..................................................................................27
5. Other.....................................................................................................................29
5.1 Disassembly/adjustment prohibited items ..........................................................29
5.2 Disassembly/assembly list (other parts).............................................................30
5.3 Disassembly/Assembly procedure......................................................................31
5.3.1 Top cover.....................................................................................................31
5.3.2 Rear cover...................................................................................................31
5.3.3 Left cover ....................................................................................................31

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5.3.4 Right cover.................................................................................................. 32
5.3.5 Paper feed cover......................................................................................... 32
5.3.6 Front cover.................................................................................................. 32
5.3.7 Original glass unit....................................................................................... 33
5.3.8 Operation board (OPB)............................................................................... 34
5.3.9 Operation key board (OKB) ........................................................................ 36
5.3.10 USB board (USB) ....................................................................................... 37
5.3.11 Image processing board (IPB).................................................................... 37
5.3.12 Printer control board (PRCB)...................................................................... 39
5.3.13 DC power supply 1 (DCPU1)...................................................................... 40
5.3.14 DC power supply 2 (DCPU2)...................................................................... 42
5.3.15 High voltage unit (HV)................................................................................. 42
5.3.16 Waste toner near full detect board/LED (WTDTB/LED).............................. 43
5.3.17 NCU board.................................................................................................. 44
5.3.18 LAN board................................................................................................... 45
5.3.19 Scanner unit................................................................................................ 46
5.3.20 IR unit ......................................................................................................... 46
5.3.21 PH unit........................................................................................................ 50
5.3.22 Paper feed unit............................................................................................ 55
5.3.23 Main motor (M1) ......................................................................................... 56
5.3.24 Power supply cooling fan motor (FM1) ....................................................... 57
5.3.25 Ventilation fan motor (FM2)......................................................................... 59
5.3.26 Fusing motor (M4) ...................................................................................... 61
5.3.27 Developing motor (M3) ............................................................................... 62
5.3.28 Rack motor (M2)......................................................................................... 64
5.3.29 Scanner motor (M5).................................................................................... 64
5.3.30 IR cooling fan motor (FM3)......................................................................... 65
5.3.31 Tray1 paper pick-up solenoid (SD1)............................................................ 66
5.3.32 Registration roller solenoid (SD2)............................................................... 67
5.3.33 Pressure/retraction solenoid /cleaning blade (SD3).................................... 68
5.3.34 Pressure/retraction solenoid /2nd image transfer (SD4)............................. 69
5.3.35 Temperature/humidity sensor (TEM/HUMS)............................................... 70
5.3.36 IDC sensor (IDC)........................................................................................ 71
5.3.37 Torque limiter.............................................................................................. 71
5.3.38 Inlet assy..................................................................................................... 73
5.3.39 Speaker (SP) .............................................................................................. 76

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Adjustment/Setting
6. How to use the adjustment section .......................................................................77
7. Description of the control panel.............................................................................78
7.1 Control panel display..........................................................................................78
7.1.1 Main screen ................................................................................................78
7.1.2 Toner supply screen....................................................................................78
8. Menu mode ........................................................................................................... 79
8.1 Menu mode function tree....................................................................................79
8.2 MACHINE SETTING...........................................................................................82
8.2.1 AUTO PANEL RESET.................................................................................82
8.2.2 ENERGY SAVE MODE...............................................................................82
8.2.3 LCD CONTRAST........................................................................................82
8.2.4 LANGUAGE ................................................................................................82
8.2.5 LAMP OFF TIME ........................................................................................82
8.2.6 BUZZER VOLUME......................................................................................83
8.2.7 INITIAL MODE............................................................................................83
8.2.8 TONER EMPTY STOP................................................................................83
8.2.9 AUTO CONTINUE.......................................................................................83
8.2.10 CALIBRATION ............................................................................................83
8.3 PAPER SOURCE SETUP...................................................................................84
8.3.1 TRAY1 PAPER............................................................................................84
8.3.2 TRAY2 PAPER............................................................................................84
8.4 COPY SETTING.................................................................................................85
8.4.1 MODE .........................................................................................................85
8.4.2 DENSITY LEVEL (A) ..................................................................................85
8.4.3 DENSITY LEVEL (M)..................................................................................85
8.4.4 COLLATE....................................................................................................85
8.4.5 QUALITY.....................................................................................................85
8.4.6 PAPER PRIORITY ...................................................................................... 86
8.5 FAX REGISTRATION .........................................................................................86
8.5.1 ONE-TOUCH DIAL .....................................................................................86
8.5.2 SPEED DIAL...............................................................................................86
8.5.3 GROUP DIAL..............................................................................................86
8.6 TX SETTING.......................................................................................................87
8.6.1 SCAN DENSITY .........................................................................................87
8.6.2 RESOLUTION.............................................................................................87
8.6.3 HEADER.....................................................................................................87
8.7 RX SETTING......................................................................................................88

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8.7.1 MEMORY RX MODE.................................................................................. 88
8.7.2 NO. of RINGS............................................................................................. 88
8.7.3 REDUCTION RX ........................................................................................ 88
8.7.4 RX PRINT................................................................................................... 92
8.7.5 RX MODE................................................................................................... 92
8.7.6 FOOTER..................................................................................................... 92
8.7.7 SELECT TRAY............................................................................................ 93
8.8 COMM. SETTING .............................................................................................. 94
8.8.1 TEL LINE TYPE.......................................................................................... 94
8.8.2 LINE MONITOR.......................................................................................... 94
8.8.3 PSTN/PBX.................................................................................................. 94
8.9 REPORTING...................................................................................................... 95
8.9.1 ACTIVITY REPORT.................................................................................... 95
8.9.2 TX RESULT REPORT................................................................................. 95
8.9.3 RX RESULT REPORT................................................................................ 95
8.10 USER SETTING................................................................................................. 96
8.10.1 FAX PTT SETTING..................................................................................... 96
8.10.2 DATE & TIME.............................................................................................. 96
8.10.3 DATE FORMAT........................................................................................... 96
8.10.4 PRESET ZOOM.......................................................................................... 96
8.10.5 USER FAX NO............................................................................................ 97
8.10.6 USER NAME .............................................................................................. 97
8.11 DIRECT PRINT .................................................................................................. 97
8.11.1 IMAGE QUALITY........................................................................................ 97
8.11.2 PAPER SIZE............................................................................................... 97
8.11.3 N-UP LAYOUT ............................................................................................ 98
8.12 NETWORK SETTING......................................................................................... 98
8.12.1 IP ADDRESS.............................................................................................. 98
8.12.2 SUBNET MASK.......................................................................................... 98
8.12.3 GATEWAY................................................................................................... 99
8.12.4 DNS CONFIG............................................................................................. 99
8.13 E-MAIL SETTING............................................................................................... 99
8.13.1 SENDER NAME ......................................................................................... 99
8.13.2 E-MAIL ADDRESS ..................................................................................... 99
8.13.3 SMTP SERVER........................................................................................ 100
8.13.4 SMTP PORT NO....................................................................................... 100
8.13.5 SMTP TIMEOUT....................................................................................... 100
8.13.6 TEXT INSERT........................................................................................... 100

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8.13.7 DEFAULT SUBJECT.................................................................................100
8.14 SCANNER SETTING........................................................................................101
8.14.1 RESOLUTION...........................................................................................101
8.14.2 IMAGE FORMAT.......................................................................................101
8.14.3 CODING METHOD...................................................................................101
9. User service mode..............................................................................................102
9.1 User service mode function tree.......................................................................102
9.2 FAX MAINTENANCE........................................................................................103
9.2.1 TX SPEED ................................................................................................103
9.2.2 RX SPEED................................................................................................103
9.2.3 TX LEVEL .................................................................................................103
9.2.4 RX LEVEL.................................................................................................103
9.2.5 DTMF LEVEL............................................................................................103
9.2.6 CNG LEVEL..............................................................................................104
9.2.7 CED LEVEL..............................................................................................104
9.2.8 ECM MODE .............................................................................................. 104
9.2.9 CODING SCHEME ...................................................................................104
9.2.10 TONER EMPTY REPORT ........................................................................105
9.2.11 PROTOCOL REPORT ..............................................................................105
9.3 SRU USAGE.....................................................................................................106
9.3.1 TRANSFER BELT.....................................................................................106
9.3.2 FUSER UNIT ............................................................................................106
9.3.3 TRANSFER ROLLER ...............................................................................106
9.4 RESET COUNT................................................................................................106
9.4.1 TRANSFER BELT.....................................................................................106
9.4.2 FUSER UNIT ............................................................................................106
9.4.3 TRANSFER ROLLER ...............................................................................107
9.5 CCD MOVE TO HOME.....................................................................................107
10. Display mode.......................................................................................................108
10.1 Display function tree.........................................................................................108
10.2 TONER REMAINING........................................................................................108
10.3 PRINT STATUS.................................................................................................108
10.4 TOTAL PAGE ....................................................................................................109
10.4.1 B/W COPY................................................................................................109
10.4.2 COLOR COPY..........................................................................................109
10.4.3 B/W PRINT ...............................................................................................109
10.4.4 COLOR PRINT .........................................................................................109
10.4.5 FAX PRINT................................................................................................109

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Troubleshooting
Appendix
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10.4.6 .. 109
10.5 TX/RX RESULT................................................................................................ 109
10.6 PRINT REPORT............................................................................................... 110
10.6.1 TX RESULT REPORT............................................................................... 110
10.6.2 RX RESULT REPORT.............................................................................. 110
10.6.3 ACTIVITY REPORT.................................................................................. 110
10.6.4 MEMORY DATA LIST................................................................................ 110
10.6.5 MEMORY IMAGE PRINT ......................................................................... 110
10.6.6 ONE-TOUCH LIST.................................................................................... 111
10.6.7 SPEED DIAL LIST.................................................................................... 111
10.6.8 GROUP DIALA LIST................................................................................. 111
10.6.9 MENU MAP .............................................................................................. 111
10.6.10 CONFIGURATION PAGE.......................................................................... 111
10.6.11 DEMO PAGE............................................................................................. 112
11. SERVICE MODE................................................................................................. 113
11.1 SERVICE MODE entry procedure.................................................................... 113
11.2 SERVICE MODE function tree......................................................................... 113
11.3 SERVICE’S CHOICE........................................................................................ 116
11.3.1 TX SPEED................................................................................................ 116
11.3.2 RX SPEED................................................................................................ 116
11.3.3 TX LEVEL................................................................................................. 116
11.3.4 RX LEVEL................................................................................................. 116
11.3.5 DTMF LEVEL............................................................................................ 116
11.3.6 CNG LEVEL.............................................................................................. 117
11.3.7 CED LEVEL.............................................................................................. 117
11.3.8 ECM MODE.............................................................................................. 117
11.3.9 CODING SCHEME................................................................................... 117
11.3.10 TONER EMPTY REPORT........................................................................ 118
11.3.11 PROTOCOL REPORT.............................................................................. 118
11.3.12 GDI TIMEOUT.......................................................................................... 118
11.3.13 ENERGY SAVE MODE ............................................................................ 118
11.4 ADJUST ........................................................................................................... 119
11.4.1 PRN MAIN REGIST.................................................................................. 119
11.4.2 PRN SUB REGIST ................................................................................... 120
11.4.3 CCD MAIN ZOOM.................................................................................... 121
11.4.4 CCD SUB ZOOM...................................................................................... 122
11.4.5 CCD MAIN REGIST.................................................................................. 123
11.4.6 CCD SUB REGIST................................................................................... 124

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11.4.7 ADF SUB ZOOM.......................................................................................125
11.4.8 ADF MAIN REGIST ..................................................................................125
11.4.9 ADF SUB REGIST....................................................................................126
11.4.10 DMAX........................................................................................................126
11.4.11 1st TRANSFER VOLTAGE........................................................................126
11.4.12 2nd TRANSFER VOLTAGE.......................................................................126
11.4.13 VPP OFFSET............................................................................................127
11.4.14 ROHS........................................................................................................127
11.4.15 FLICKER SPECIAL...................................................................................127
11.4.16 SERIAL NO...............................................................................................127
11.5 COUNTER........................................................................................................128
11.5.1 TOTAL PRINT ...........................................................................................128
11.5.2 TOTAL SCAN............................................................................................128
11.5.3 PRINTER JAM..........................................................................................128
11.5.4 ADF JAM...................................................................................................128
11.5.5 TROUBLE.................................................................................................128
11.6 DISPLAY...........................................................................................................129
11.6.1 MAIN F/W VER.........................................................................................129
11.6.2 ENGINE F/W VER. ...................................................................................129
11.6.3 NIC F/W VER............................................................................................129
11.6.4 MAIN RAM SIZE.......................................................................................129
11.6.5 SERIAL NO...............................................................................................129
11.6.6 BB CPLD VER. .........................................................................................129
11.6.7 NAND CODE VER....................................................................................129
11.7 FUNCTION.......................................................................................................130
11.7.1 PAPER FEED TEST .................................................................................130
11.7.2 PRINT TEST PATTERN............................................................................130
11.7.3 ADF FEED TEST......................................................................................131
11.7.4 COPY ADF GLASS AREA........................................................................131
11.7.5 CCD MOVE TO HOME.............................................................................131
11.7.6 FAX RES. COPY TEST.............................................................................132
11.7.7 SCAN TEST..............................................................................................132
11.8 SOFT SWITCH.................................................................................................133
11.8.1 KEY DEFINITION FOR SOFT SWITCH...................................................133
11.9 REPORT...........................................................................................................133
11.9.1 SERVICE DATA LIST ................................................................................133
11.9.2 ERROR CODE LIST.................................................................................136
11.9.3 T.30 PROTOCOL LIST..............................................................................137

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Troubleshooting
Appendix
Field Service Ver. 1.0 Jul. 2006
11.10 FIXED ZOOM CHANGE................................................................................... 139
11.11 FACTORY TEST............................................................................................... 139
11.12 CLEAR DATA.................................................................................................... 140
11.12.1 SRAM CLEAR .......................................................................................... 140
11.12.2 MEMORY CLEAR..................................................................................... 140
12. SOFT SWITCH set ............................................................................................. 141
12.1 Description ....................................................................................................... 141
12.2 Default setting................................................................................................... 141
12.2.1 Country for each marketing area.............................................................. 141
12.2.2 Soft switch list........................................................................................... 142
12.2.3 Default soft switch setting for each market area....................................... 146
12.3 Soft switch definition......................................................................................... 168
12.3.1 SOFT SWITCH: #01................................................................................. 168
12.3.2 SOFT SWITCH: #02................................................................................. 169
12.3.3 SOFT SWITCH: #03................................................................................. 170
12.3.4 SOFT SWITCH: #04................................................................................. 171
12.3.5 SOFT SWITCH: #05................................................................................. 172
12.3.6 SOFT SWITCH: #06................................................................................. 173
12.3.7 SOFT SWITCH: #07................................................................................. 174
12.3.8 SOFT SWITCH: #08................................................................................. 175
12.3.9 SOFT SWITCH: #09................................................................................. 176
12.3.10 SOFT SWITCH: #10................................................................................. 177
12.3.11 SOFT SWITCH: #11................................................................................. 178
12.3.12 SOFT SWITCH: #12................................................................................. 178
12.3.13 SOFT SWITCH: #13................................................................................. 179
12.3.14 SOFT SWITCH: #14................................................................................. 180
12.3.15 SOFT SWITCH: #15................................................................................. 180
12.3.16 SOFT SWITCH: #16................................................................................. 181
12.3.17 SOFT SWITCH: #17................................................................................. 181
12.3.18 SOFT SWITCH: #18................................................................................. 182
12.3.19 SOFT SWITCH: #19................................................................................. 183
12.3.20 SOFT SWITCH: #20................................................................................. 184
12.3.21 SOFT SWITCH: #21................................................................................. 185
12.3.22 SOFT SWITCH: #22................................................................................. 186
12.3.23 SOFT SWITCH: #23................................................................................. 186
12.3.24 SOFT SWITCH: #24................................................................................. 187
12.3.25 SOFT SWITCH: #25................................................................................. 187
12.3.26 SOFT SWITCH: #26................................................................................. 188

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Appendix
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12.3.27 SOFT
12.3.28 SOFT SWITCH: #28 .................................................................................190
12.3.29 SOFT SWITCH: #29 .................................................................................191
12.3.30 SOFT SWITCH: #30 .................................................................................192
12.3.31 SOFT SWITCH: #31 .................................................................................193
12.3.32 SOFT SWITCH: #32 .................................................................................193
12.3.33 SOFT SWITCH: #33 .................................................................................194
12.3.34 SOFT SWITCH: #34 .................................................................................194
12.3.35 SOFT SWITCH: #35 .................................................................................195
12.3.36 SOFT SWITCH: #36 .................................................................................196
12.3.37 SOFT SWITCH: #37 .................................................................................197
12.3.38 SOFT SWITCH: #38 .................................................................................198
12.3.39 SOFT SWITCH: #39 .................................................................................199
12.3.40 SOFT SWITCH: #40 .................................................................................200
12.3.41 SOFT SWITCH: #41 .................................................................................201
12.3.42 SOFT SWITCH: #42 .................................................................................202
12.3.43 SOFT SWITCH: #43 .................................................................................202
12.3.44 SOFT SWITCH: #44 .................................................................................202
12.3.45 SOFT SWITCH: #45 .................................................................................203
12.3.46 SOFT SWITCH: #46 .................................................................................203
12.3.47 SOFT SWITCH: #47 .................................................................................204
12.3.48 SOFT SWITCH: #48 .................................................................................204
12.3.49 SOFT SWITCH: #49 .................................................................................205
12.3.50 SOFT SWITCH: #50 .................................................................................205
12.3.51 SOFT SWITCH: #51 .................................................................................206
12.3.52 SOFT SWITCH: #52 .................................................................................206
12.3.53 SOFT SWITCH: #53 .................................................................................207
12.3.54 SOFT SWITCH: #54 .................................................................................207
12.3.55 SOFT SWITCH: #55 .................................................................................208
12.3.56 SOFT SWITCH: #56 .................................................................................208
12.3.57 SOFT SWITCH: #57 .................................................................................208
12.3.58 SOFT SWITCH: #58 .................................................................................209
12.3.59 SOFT SWITCH: #59 (Part 1) ....................................................................210
12.3.60 SOFT SWITCH: #59 (Part 2) ....................................................................211
12.3.61 SOFT SWITCH: #59 (Part 3) ....................................................................212
12.3.62 SOFT SWITCH: #60 .................................................................................213
12.3.63 SOFT SWITCH: #61 .................................................................................213

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12.3.64 SOFT SWITCH: #62................................................................................. 214
12.3.65 SOFT SWITCH: #63................................................................................. 214
12.3.66 SOFT SWITCH: #64................................................................................. 215
13. Fax Protocols ...................................................................................................... 216
13.1 G3 ECM (G3 Error Correction Mode)............................................................... 216
13.2 Line control....................................................................................................... 217
13.2.1 Procedure of G3 mode communication .................................................... 217
13.3 Table of reference code.................................................................................... 218
13.4 How to analyze the T30 protocol monitor......................................................... 219
Troubleshooting
14. Jam display......................................................................................................... 227
14.1 Misfeed display................................................................................................. 227
14.1.1 Misfeed display resetting procedure......................................................... 227
14.2 Sensor layout.................................................................................................... 228
14.3 Solution ............................................................................................................ 229
14.3.1 Initial check items ..................................................................................... 229
14.3.2 Misfeed at paper feed section................................................................... 229
14.3.3 Misfeed at 2nd transfer section................................................................. 230
14.3.4 Misfeed at fusing section .......................................................................... 231
14.3.5 Misfeed at exit section .............................................................................. 232
14.3.6 Undefined misfeed.................................................................................... 233
15. Error codes ......................................................................................................... 234
15.1 Trouble display.................................................................................................. 234
15.2 Trouble code list................................................................................................ 234
15.3 How to reset ..................................................................................................... 236
15.4 Solution ............................................................................................................ 237
15.4.1 04H: Printer control board malfunction..................................................... 237
15.4.2 05H: Flash ROM malfunction.................................................................... 237
15.4.3 08H: Main motor malfunction.................................................................... 237
15.4.4 0BH: Ventilation fan motor malfunction..................................................... 238
15.4.5 0CH: Power supply cooling fan motor malfunction ................................... 238
15.4.6 10H: Polygon motor malfunction............................................................... 239
15.4.7 12H: Laser malfunction............................................................................. 239
15.4.8 14h: 2nd image transfer pressure/retraction failure.................................. 240
15.4.9 15H: Cleaning blade pressure/retraction failure........................................ 241
15.4.10 16H: Transfer belt rotation failure.............................................................. 241
15.4.11 17H: Rack rotation failure ......................................................................... 242

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15.4.1 .........242
15.4.13 19H: Abnormally low heating roller temperature.......................................242
15.4.14 1AH: Abnormally high heating roller temperature.....................................242
15.4.15 1BH: Faulty thermistor ..............................................................................242
15.4.16 21H: Faulty OHP sensor...........................................................................243
15.4.17 23H: Faulty waste toner near full detection board.....................................243
15.4.18 31H: IR cooling fan motor malfunction......................................................244
15.4.19 101H: Scanner motor malfunction ............................................................244
15.4.20 102H: Faulty IR exposure lamp.................................................................245
15.4.21 ENGINE INTERFACE: Communication error between engine controller..245
15.4.22 CONTROLLER: Controller internal error ..................................................245
16. Power supply errors.............................................................................................246
16.1 Machine is not energized at all (PU operation check) ......................................246
16.2 Control panel indicators do not light .................................................................246
16.3 Fusing heaters do not operate..........................................................................247
17. Miscellaneous errors...........................................................................................248
17.1 How to identify problematic part .......................................................................248
17.1.1 Initial check items 1...................................................................................248
17.1.2 Initial check items 2...................................................................................249
17.2 Solution.............................................................................................................250
17.2.1 Scanner system: Blank copy or black copy...............................................250
17.2.2 Scanner system: Low image density or rough image ...............................251
17.2.3 Scanner system: Foggy background.........................................................252
17.2.4 Scanner system: Black streaks or bands..................................................253
17.2.5 Scanner system: Black spots....................................................................254
17.2.6 Scanner system: White streaks or bands .................................................255
17.2.7 Scanner system: Uneven pitch .................................................................256
17.2.8 White lines in FD, white bands in FD, colored lines in FD,
and colored bands in FD...........................................................................257
17.2.9 White lines in CD, white bands in CD, colored lines in CD,
and colored bands in CD ..........................................................................258
17.2.10 Uneven density in FD................................................................................259
17.2.11 Uneven density in CD ...............................................................................260
17.2.12 Low image density ....................................................................................261
17.2.13 Gradation reproduction failure...................................................................262
17.2.14 Foggy background.....................................................................................263
17.2.15 Poor color reproduction.............................................................................264
17.2.16 Void areas, white spots .............................................................................265

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17.2.17 Colored spots............................................................................................ 266
17.2.18 Blurred image ........................................................................................... 267
17.2.19 Blank copy, black copy.............................................................................. 268
17.2.20 Incorrect color image registration ............................................................. 269
17.2.21 Poor fusing performance, offset................................................................ 270
17.2.22 Brush effect, blurred image....................................................................... 271
17.2.23 Back marking............................................................................................ 272
17.2.24 Uneven pitch............................................................................................. 273
18. FAX error............................................................................................................. 274
18.1 Communication error........................................................................................ 274
18.2 Outline.............................................................................................................. 274
18.3 Error occurring during transmission ................................................................. 274
18.3.1 Error occurring during reception............................................................... 274
18.4 Error code......................................................................................................... 275
18.4.1 Reception.................................................................................................. 275
18.4.2 Transmission............................................................................................. 277
Appendix
19. Parts layout drawing............................................................................................ 281
19.1 Main Unit .......................................................................................................... 281
19.2 Auto Document Feeder Unit............................................................................. 283
19.3 Duplex Option (Option)..................................................................................... 284
19.4 Lower Feeder Unit (Option).............................................................................. 285
20. Connector layout drawing ................................................................................... 286

SERVICE MANUAL
2006.07
Ver. 1.0
FIELD SERVICE
Auto Document
Feeder Unit

SERVICE MANUAL
2006.07
Ver. 1.0
FIELD SERV
Lower Feeder Un

SERVICE MANUAL
2006.07
Ver. 1.0
FIELD SERVICE
Duplex Option

KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual
KONICA-MINOLTA Magicolor 2490MF service manual