Konica Minolta bizhub C350 User manual

SERVICE MANUAL
2004.03
Ver. 1.0
FIELD SERVICE
Includes:
Standard Controller
DF-601
PC-101/PC-201
PC-401
AD-501
FS-501
FS-601

SERVICE MANUAL
2004.09
Ver. 2.0
FIELD SERVICE
Main Unit

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I GeneralII MaintenanceIII Adjustment/SettingIV TroublshootingV Appendix
I General
1. System configuration............................................................................................1-1
2. Product specifications .......................................................................................... 1-3
2.1 Type ................................................................................................................... 1-3
2.2 Functions ........................................................................................................... 1-3
2.3 Types of Paper...................................................................................................1-4
2.4 Maintenance ...................................................................................................... 1-4
2.5 Machine Specifications......................................................................................1-4
2.6 Operating Environment...................................................................................... 1-4
2.7 Built-in Controllers ............................................................................................. 1-5
II Maintenance
1. Periodical check ................................................................................................... 2-1
1.1 Service schedule ............................................................................................... 2-1
1.2 Maintenance items............................................................................................. 2-1
1.2.1 Parts to be replaced by users (CRU)............................................................2-1
1.2.2 Maintenance call (per 60,000-print).............................................................. 2-2
1.2.3 Periodical parts replacement 1 (per 150,000-print) ...................................... 2-2
1.2.4 Periodical parts replacement 2 (per 200,000-print) ...................................... 2-2
1.2.5 Periodical parts replacement 3 (per 300,000-print) ...................................... 2-3
1.3 Maintenance parts ............................................................................................. 2-4
1.4 Concept of parts life........................................................................................... 2-5
1.5 Maintenance procedure (Periodical check parts) ..............................................2-7
1.5.1 Paper Take-up Roller .................................................................................... 2-7
1.5.2 Separation Roller..........................................................................................2-7
1.5.3 Separation Roller 2.......................................................................................2-8
1.5.4 Paper Take-up Roller .................................................................................. 2-10
1.5.5 Pick-up Roller ............................................................................................. 2-13
1.5.6 Transport Roller .......................................................................................... 2-14
1.5.7 Cleaning of Synchronizing Roller ............................................................... 2-15
1.5.8 Paper Dust Remover .................................................................................. 2-15
1.5.9 Cleaning of Transport Roller....................................................................... 2-16
1.5.10 Cleaning of 2nd Image Transfer Entrance Upper Guide............................. 2-16
1.5.11 Cleaning of Scanner Rail............................................................................ 2-16
1.5.12 Cleaning of the Mirrors (1st/2nd/3rd).......................................................... 2-17
1.5.13 Cleaning of the Lens................................................................................... 2-17

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1.5.14 Cleaning of the Original Glass ................................................................... 2-18
1.5.15 Cleaning of the CCD Sensor ...................................................................... 2-18
1.5.16 Replacing the Waste Toner Bottle .............................................................. 2-19
1.5.17 Cleaning of the Area around the Waste Toner Collecting Port ................... 2-20
1.5.18 Replacing Ozone Filter............................................................................... 2-20
1.5.19 Cleaning of the Comb Electrode ................................................................ 2-20
1.5.20 Cleaning LPH Assy .................................................................................... 2-21
1.5.21 Replacement of the Deodorant Filter ......................................................... 2-21
1.5.22 Replacing the 2nd Image Transfer Roller Unit............................................ 2-22
1.5.23 Image Transfer Belt Unit ............................................................................. 2-23
1.5.24 Replacing the Imaging Unit (C, M, Y, Bk) ................................................... 2-25
1.5.25 Replacing the Fusing Unit .......................................................................... 2-28
2. Service tool ........................................................................................................ 2-29
2.1 CE Tool list ...................................................................................................... 2-29
2.2 Copy materials ................................................................................................ 2-30
2.2.1 Imaging Unit Single Parts (IU).................................................................... 2-30
2.2.2 Toner Cartridge Single Parts (T/C)............................................................. 2-30
2.2.3 Waste Toner Bottle ..................................................................................... 2-30
2.2.4 Maintenance Kit.......................................................................................... 2-30
3. Firmware upgrade.............................................................................................. 2-31
3.1 Preparations for Firmware rewriting ................................................................ 2-31
3.1.1 Service environment................................................................................... 2-31
3.1.2 Application to be used ................................................................................ 2-31
3.1.3 Installing the Cygwin .................................................................................. 2-31
3.1.4 Writing into the Compact flash ................................................................... 2-32
3.2 Firmware rewriting........................................................................................... 2-34
3.2.1 Updating method ........................................................................................ 2-34
3.2.2 Action When Data Transfer Fails ................................................................ 2-35
4. Other .................................................................................................................. 2-36
4.1 Disassembly/Adjustment prohibited items....................................................... 2-36
4.2 Disassembly/Assembly list (Other parts)......................................................... 2-37
4.3 Disassembly/Assembly procedure .................................................................. 2-39
4.3.1 IR Right Cover/Front Right Cover/Bypass Right & Left Cover.................... 2-39
4.3.2 Exit Tray/IR Left Cover/Rear Left Cover/Left Front Cover........................... 2-40
4.3.3 Front Door/Panel Cover/Paper Setting Dial Cover...................................... 2-41
4.3.4 Lower Rear Cover/Tray 2 Rear Cover/Rear Cover/
Rear Right Cover/Tray 2 Rear Right Cover/Wiring Cover........................... 2-41
4.3.5 IR Upper Front Cover/IR Upper Right Cover/IR Upper Rear Cover ........... 2-42

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IIII Adjustment/SettingIV TroublshootingV Appendix
4.3.6 Original Glass/IR Front Cover..................................................................... 2-43
4.3.7 Control Panel .............................................................................................. 2-43
4.3.8 Tray 1 .......................................................................................................... 2-44
4.3.9 Tray 2 .......................................................................................................... 2-45
4.3.10 Scanner Motor Drive Board ........................................................................ 2-45
4.3.11 CCD Unit .................................................................................................... 2-46
4.3.12 Image Processing Board ............................................................................ 2-47
4.3.13 Control Board ............................................................................................. 2-48
4.3.14 MFP Control Board..................................................................................... 2-49
4.3.15 High Voltage Unit/1.....................................................................................2-51
4.3.16 High Voltage Unit/2.....................................................................................2-52
4.3.17 Tray 1 Paper Size Board ............................................................................. 2-53
4.3.18 DC Power Supply .......................................................................................2-53
4.3.19 LED Drive Board......................................................................................... 2-55
4.3.20 Paper Type Board ....................................................................................... 2-56
4.3.21 Tech. Rep. Setting Switches Board ............................................................ 2-56
4.3.22 Tray 2 Board ............................................................................................... 2-57
4.3.23 Tray 2 Paper Size Board ............................................................................. 2-57
4.3.24 Inverter Board ............................................................................................. 2-58
4.3.25 Multi Bypass Unit........................................................................................2-58
4.3.26 Toner Hopper Unit ...................................................................................... 2-59
4.3.27 LPH Unit ..................................................................................................... 2-61
4.3.28 Scanner Motor ............................................................................................ 2-63
4.3.29 Scanner Assy ............................................................................................. 2-65
4.3.30 Scanner Drive Cables................................................................................. 2-66
4.3.31 Winding of the Scanner Drive Cables......................................................... 2-68
4.3.32 PWB Box .................................................................................................... 2-73
4.3.33 Main Motor.................................................................................................. 2-74
4.3.34 Fusing Drive Motor ..................................................................................... 2-74
4.3.35 Toner Supply Motor C/Bk............................................................................ 2-75
4.3.36 Toner Supply Motor Y/M ............................................................................. 2-75
4.3.37 Color PC Drum Motor ................................................................................. 2-76
4.3.38 Color Developing Motor .............................................................................. 2-78
4.3.39 Bk PC Motor ............................................................................................... 2-79
4.3.40 1st Image Transfer Pressure/Retraction Motor ........................................... 2-80
4.3.41 2nd Image Transfer Pressure/Retraction Motor.......................................... 2-80
4.3.42 Intermediate Transport Motor ..................................................................... 2-81

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4.3.43 Fusing 3
4.3.44 Cleaning Brush Motor ................................................................................ 2-86
4.3.45 AIDC/Registration Sensor/1,2 .................................................................... 2-87
4.3.46 LPH ............................................................................................................ 2-88
4.3.47 ATDC Sensor Y/M/C................................................................................... 2-92
4.4 Mount the optional original size detecting sensors.......................................... 2-93
4.5 Option counter................................................................................................. 2-94
4.5.1 Installation of The Mechanical Counter ...................................................... 2-94
4.5.2 Installation method for the Key Counter ..................................................... 2-95
III Adjustment/Setting
1. How to use the adjustment section ...................................................................... 3-1
2. Adjustment item list.............................................................................................. 3-2
3. Utility Mode .......................................................................................................... 3-4
3.1 Utility Mode function tree................................................................................... 3-4
3.1.1 Administrator Mode function tree ................................................................. 3-5
3.2 Utility Mode function setting procedure ............................................................. 3-7
3.2.1 Procedure..................................................................................................... 3-7
3.2.2 Exiting........................................................................................................... 3-7
3.2.3 Changing the setting value in Utility Mode functions .................................... 3-7
3.3 Settings in the store........................................................................................... 3-8
3.3.1 Reset Mode .................................................................................................. 3-8
3.3.2 Mode Store................................................................................................... 3-8
3.4 Counter List ....................................................................................................... 3-8
3.5 Controller Detail................................................................................................. 3-8
3.6 User’s Choice: 1 ................................................................................................ 3-9
3.6.1 1/2 ................................................................................................................ 3-9
3.6.2 2/2 ................................................................................................................ 3-9
3.7 User’s Choice: 2 .............................................................................................. 3-10
3.7.1 1/3 .............................................................................................................. 3-10
3.7.2 2/3 .............................................................................................................. 3-11
3.7.3 3/3 .............................................................................................................. 3-12
3.8 Copy program Recall....................................................................................... 3-13
3.9 Printer Setting.................................................................................................. 3-13
3.9.1 Default setting ............................................................................................ 3-13
3.9.2 Report Types .............................................................................................. 3-15
3.10 Unit Life Indication ........................................................................................... 3-15
3.11 Settings in the Admin. Mode ........................................................................... 3-16
3.11.1 Admin. Set.................................................................................................. 3-16

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3.12 Settings in Volume Track (E. K. C.)..................................................................3-20
3.12.1 Volume Track Mode (E. K. C.)..................................................................... 3-20
3.12.2 Volume Track Setting (E. K. C.) .................................................................. 3-20
3.12.3 Volume Track Data (E. K. C.) ...................................................................... 3-20
3.13 Call Service Cent............................................................................................. 3-21
3.14 Settings in Printer Setting ................................................................................ 3-21
3.14.1 Common Setting......................................................................................... 3-21
3.14.2 PCL Setting ................................................................................................ 3-22
3.15 Settings in Scan setting ................................................................................... 3-22
3.15.1 Device Name .............................................................................................. 3-22
3.15.2 Color/Grayscale Compression.................................................................... 3-22
3.15.3 Pri. Comp. Method for Monochrome........................................................... 3-22
3.16 Settings in Network Setting ............................................................................. 3-23
3.16.1 Common Setting......................................................................................... 3-23
3.16.2 E-mail/Internet ............................................................................................ 3-24
3.16.3 FTP Server ................................................................................................. 3-26
3.16.4 Twain .......................................................................................................... 3-26
3.16.5 LDAP .......................................................................................................... 3-27
3.17 Settings in Expert User Mode.......................................................................... 3-28
3.17.1 Thick Paper and OHP Film Image Density ................................................. 3-28
3.17.2 Color Shift Correction (Bk).......................................................................... 3-29
3.17.3 Color Shift Correction (C, M, Y) .................................................................. 3-30
3.17.4 Black Image Density Correction .................................................................3-31
3.17.5 Stabilizer..................................................................................................... 3-31
3.17.6 PRT Area (Top Margin)............................................................................... 3-32
3.17.7 PRT Area (Left Margin)............................................................................... 3-33
3.17.8 PRT Area (Dup. Left Margin) ...................................................................... 3-34
3.17.9 Center Staple Position ................................................................................ 3-35
3.17.10 Delete All Data in Index .............................................................................. 3-36
3.18 Gradation Adjustment ...................................................................................... 3-36
3.19 Server Setting (KRDS) / Server Setting (RD) .................................................. 3-37
3.19.1 POP3 Server .............................................................................................. 3-37
3.19.2 Receive....................................................................................................... 3-37
3.19.3 Send ........................................................................................................... 3-38
3.19.4 Status ......................................................................................................... 3-38
3.20 Toner Coverage ............................................................................................... 3-39
4. TECH. REP. MODE............................................................................................ 3-40
4.1 Tech. Rep. Mode function setting procedure ................................................... 3-40

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4.2 Touch Panel Adj............................................................................................... 3-41
4.3 Tech. Rep. Mode function tree......................................................................... 3-42
4.4 Machine Adjust................................................................................................ 3-44
4.4.1 Fuser Nip.................................................................................................... 3-44
4.4.2 Fuser Temp. ............................................................................................... 3-44
4.4.3 Fuser Speed............................................................................................... 3-45
4.4.4 Org. Detect Sensor..................................................................................... 3-45
4.4.5 PRT Area.................................................................................................... 3-46
4.4.6 IR Area ....................................................................................................... 3-50
4.4.7 Loop Adjust ................................................................................................ 3-53
4.4.8 Color Shift Correction ................................................................................. 3-54
4.4.9 LPH Rank ................................................................................................... 3-56
4.4.10 LPH Chip Adjust ......................................................................................... 3-57
4.4.11 Center Binding Position (FS-601 only) ....................................................... 3-58
4.4.12 Memory / HardDisk Adjust ......................................................................... 3-59
4.4.13 Bypass Guide Adjust .................................................................................. 3-61
4.5 ROM Version ................................................................................................... 3-61
4.6 Image Adjust ................................................................................................... 3-61
4.6.1 PRT Max Density ....................................................................................... 3-61
4.6.2 PRT Highlight ............................................................................................. 3-62
4.6.3 Background Voltage Margin ....................................................................... 3-62
4.6.4 ATDC Level Setting .................................................................................... 3-63
4.6.5 AE Adjust.................................................................................................... 3-63
4.6.6 2nd Transfer Adjust..................................................................................... 3-64
4.6.7 Stabilizer..................................................................................................... 3-64
4.6.8 ATDC Toner Supply .................................................................................... 3-65
4.6.9 Feeding double sided THIN PAPER ........................................................... 3-65
4.6.10 Thick Paper Image Density ........................................................................ 3-65
4.6.11 Monochrome Image Density ...................................................................... 3-66
4.6.12 Bias Voltage Choice ................................................................................... 3-66
4.7 Settings in KRDS / RD Mode .......................................................................... 3-67
4.8 System Input ................................................................................................... 3-69
4.8.1 Marketing Area ........................................................................................... 3-69
4.8.2 Org. Detect Option Sensor ......................................................................... 3-69
4.8.3 Serial # Input .............................................................................................. 3-69
4.8.4 Tel. # Input.................................................................................................. 3-69
4.8.5 FLS Paper .................................................................................................. 3-70
4.8.6 Book Erase (Center)................................................................................... 3-70

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4.8.7 Peripheral Setting ....................................................................................... 3-70
4.8.8 Server set (KRDS) / Server set (RD).......................................................... 3-71
4.8.9 Unit Change................................................................................................ 3-73
4.8.10 Reprint ........................................................................................................ 3-73
4.8.11 Hard Disk.................................................................................................... 3-74
4.8.12 Display PM parts lifetime ............................................................................ 3-74
4.8.13 LCT Paper Size .......................................................................................... 3-74
4.8.14 Chinese Paper Size ....................................................................................3-74
4.8.15 US Zoom Setting ........................................................................................ 3-74
4.9 Admin. Password Initialize ............................................................................... 3-75
4.10 Settings in Counter .......................................................................................... 3-75
4.10.1 Procedure ................................................................................................... 3-75
4.10.2 Life .............................................................................................................. 3-75
4.10.3 Jam.............................................................................................................3-76
4.10.4 Trouble ........................................................................................................ 3-76
4.10.5 Warning ...................................................................................................... 3-76
4.10.6 Maintenance ............................................................................................... 3-76
4.11 List Output ....................................................................................................... 3-77
4.11.1 Image Processing...................................................................................... 3-77
4.11.2 Counter....................................................................................................... 3-77
4.12 Settings in State Confirm................................................................................. 3-78
4.12.1 I/O Check.................................................................................................... 3-78
4.12.2 Table # ........................................................................................................ 3-88
4.12.3 Level History1 ............................................................................................. 3-88
4.12.4 Level History2 ............................................................................................. 3-88
4.12.5 Temp. & Humidity........................................................................................ 3-89
4.12.6 CCD Check................................................................................................. 3-89
4.12.7 Paper Passage ........................................................................................... 3-89
4.12.8 Option Check .............................................................................................. 3-89
4.12.9 Color Shift................................................................................................... 3-90
4.12.10 IU Lot No..................................................................................................... 3-90
4.12.11 LPH Status ................................................................................................. 3-90
4.13 Settings in Test Print........................................................................................3-91
4.13.1 Procedure ................................................................................................... 3-91
4.13.2 Gradation Pattern ....................................................................................... 3-91
4.13.3 Halftone Pattern.......................................................................................... 3-92
4.13.4 Lattice Pattern ............................................................................................ 3-92
4.13.5 Solid pattern ............................................................................................... 3-93

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4.13.6 Color sample .............................................................................................. 3-93
4.13.7 8 Color Solid Pattern .................................................................................. 3-94
4.13.8 LPH Pattern................................................................................................ 3-94
4.14 ADF Check ...................................................................................................... 3-95
4.14.1 Original Stop Position................................................................................. 3-95
4.14.2 Registration Loop ....................................................................................... 3-95
4.14.3 Auto Adjust Stop Position ........................................................................... 3-95
4.14.4 Paper Passage ........................................................................................... 3-95
4.14.5 I/O Check .................................................................................................. 3-95
4.14.6 Tray Width Adjust........................................................................................ 3-95
4.14.7 Sensor Auto Adjust..................................................................................... 3-96
4.15 Gradation Adjust.............................................................................................. 3-96
4.16 Miscellaneous Adjustments............................................................................. 3-97
4.16.1 Transfer Belt Refresh.................................................................................. 3-97
4.16.2 Transfer Belt Cleaning Bias ........................................................................ 3-98
4.16.3 Transfer Belt Auto Cleaning........................................................................ 3-98
4.16.4 AIDC Table Correction................................................................................ 3-98
5. Security .............................................................................................................. 3-99
5.1 Security Mode Function Setting Procedure..................................................... 3-99
5.1.1 Procedure................................................................................................... 3-99
5.1.2 Exiting......................................................................................................... 3-99
5.2 Security Mode Function Tree........................................................................... 3-99
5.3 Settings in the Security Mode........................................................................ 3-100
5.3.1 Counter Setting ........................................................................................ 3-100
5.3.2 Admin. Choice .......................................................................................... 3-101
5.3.3 Coverage Rate Reset ............................................................................... 3-102
5.3.4 Remote Diagnosis System Choice........................................................... 3-102
5.3.5 Lock Job Authentication Mode ................................................................. 3-102
5.3.6 IU Life Stop Setting .................................................................................. 3-102
5.3.7 Service Code Change .............................................................................. 3-102
6. Mechanical adjustment .................................................................................... 3-103
6.1 Adjustment of the Scanner Motor Timing Belt............................................... 3-103
6.2 Focus Positioning of the Scanner and Mirrors Unit ....................................... 3-104
6.3 Scanner Position Adjustment ........................................................................ 3-104
6.4 Adjustment of the Bypass Paper Size Unit.................................................... 3-105
7. Board switch .................................................................................................... 3-107
7.1 PWB Location................................................................................................ 3-107
7.2 PWB-S1 (Tech. Rep. Setting Switches Board) .............................................. 3-107

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I GeneralII MaintenanceSetting
7.2.1 Initialize Procedure ...................................................................................3-108
7.2.2 Memory Clear Procedure ......................................................................... 3-108
7.2.3 If the machine exhibits an erratic display or operation.............................. 3-108
7.2.4 Data/Conditions Cleared by Reset Switches/Pins .................................... 3-108
8. Date/Time input mode ......................................................................................3-109
8.1 Date/Time input mode screen........................................................................ 3-109
8.2 Date/Time input mode setting procedure....................................................... 3-109
IV Troubleshooting
1. Jam Display.......................................................................................................... 4-1
1.1 Misfeed Display.................................................................................................. 4-1
1.1.1 Misfeed Display Resetting Procedure...........................................................4-1
1.2 Sensor layout..................................................................................................... 4-2
1.2.1 System Mounted with AD-501 and PC-401.................................................. 4-2
1.2.2 System Mounted with AD-501 and PC-201.................................................. 4-3
1.3 Solution..............................................................................................................4-4
1.3.1 Initial Check Items ........................................................................................ 4-4
1.3.2 1st Drawer take-up, Fusing Misfeed ............................................................. 4-5
1.3.3 2nd Drawer take-up, Vertical Transport, Manual Bypass take-up ................. 4-6
1.3.4 LCT Take-up and Vertical Transport Misfeed (PC-401) ................................ 4-8
1.3.5 Tray3 Take-up and Vertical Transport Misfeed (PC-101/PC201) ..................4-9
1.3.6 Tray4 Take-up and Vertical Transport Misfeed (PC201) .............................4-10
1.3.7 Duplex Transport Misfeed (AD-501) ........................................................... 4-11
1.3.8 Fusing/Exit Misfeed .................................................................................... 4-12
2. Malfunction code ................................................................................................ 4-13
2.1 Restarting ........................................................................................................ 4-13
2.2 Alert code ........................................................................................................ 4-13
2.2.1 Alert list....................................................................................................... 4-14
2.3 Solution............................................................................................................ 4-15
2.3.1 S-1 : CCD clamp/gain adjustment failure.................................................... 4-15
2.3.2 P-5: AIDC Sensor (Front) failure.................................................................4-15
2.3.3 P-28 AIDC Sensor (Back) failure ................................................................4-15
2.3.4 P-6: Cyan Imaging Unit failure.................................................................... 4-16
2.3.5 P-7: Magenta Imaging Unit failure .............................................................. 4-16
2.3.6 P-8: Yellow Imaging Unit failure .................................................................. 4-16
2.3.7 P-9: Black Imaging Unit failure ................................................................... 4-16
2.3.8 P-21: Color Shift Test Pattern failure .......................................................... 4-16
2.3.9 P-22: Color Shift Adjust failure.................................................................... 4-16

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2.3.10 P-26 : 1st image transfer ATVC (Black) failure ........................................... 4-17
2.3.11 P-27 : 2nd image transfer ATVC failure ...................................................... 4-17
2.3.12 P-29 : 1st image transfer ATVC (Color) failure ........................................... 4-17
2.3.13 P-30: Color PC Drum Sensor malfunction.................................................. 4-17
2.3.14 P-31: Black PC Drum Sensor malfunction ................................................. 4-17
2.4 Trouble code .................................................................................................... 4-18
2.4.1 Trouble code list ......................................................................................... 4-18
2.5 How to reset .................................................................................................... 4-26
2.6 Solution ........................................................................................................... 4-27
2.6.1 C0000: Main Motor's failure to turn ............................................................ 4-27
2.6.2 C0001: Main Motor Turning at abnormal timing ......................................... 4-27
2.6.3 C0016: Bk PC Motor failure to turn ............................................................ 4-28
2.6.4 C0017: Bk PC Motor turning at abnormal timing........................................ 4-28
2.6.5 C0018: Color PC Motor failure to turn ........................................................ 4-28
2.6.6 C0019: Color PC Motor turning at abnormal timing ................................... 4-29
2.6.7 C001A: Color Developing Motor failure to turn........................................... 4-29
2.6.8 C001B: Color Developing Motor turning at abnormal timing ...................... 4-29
2.6.9 C0040: Suction Fan Motor’s failure to turn ................................................. 4-30
2.6.10 C0046: Fusing Cooling Fan Motor /1’s failure to turn ................................. 4-30
2.6.11 C0048: Fusing Cooling Fan Motor /2 /3’s failure to turn ............................. 4-31
2.6.12 C004C: Ozone Ventilation Fan Motor’s failure to turn ................................ 4-31
2.6.13 C004D: Toner Suction Fan Motor’s failure to turn....................................... 4-32
2.6.14 C004E: Power Supply Cooling Fan Motor’s failure to turn.......................... 4-32
2.6.15 C004F: Cooling Fan Motor 2’s failure to turn.............................................. 4-32
2.6.16 C0060: Fusing Drive Motor’s failure to turn ................................................ 4-33
2.6.17 C0061: Fusing Drive Motor turning at abnormal timing.............................. 4-33
2.6.18 C0094: 2nd Image Transfer Roller pressure/retraction failure.................... 4-33
2.6.19 C0096: Image Transfer Belt pressure/retraction failure .............................. 4-34
2.6.20 C0098: Fusing Pressure Roller pressure/retraction failure......................... 4-34
2.6.21 C0200: Cyan PC Drum Charge Corona malfunction.................................. 4-35
2.6.22 C0202: Magenta PC Drum Charge Corona malfunction ............................ 4-35
2.6.23 C0204: Yellow PC Drum Charge Corona malfunction ................................ 4-35
2.6.24 C0206: Black PC Drum Charge Corona malfunction ................................. 4-35
2.6.25 C0208: PC Drum Charge Corona malfunction ........................................... 4-35
2.6.26 C0400: Exposure Lamp's failure to turn ON............................................... 4-35
2.6.27 C0410: Exposure Lamp turning ON at abnormal timing ............................ 4-35
2.6.28 C0500: Heating Roller warm-up failure ...................................................... 4-36
2.6.29 C0501: Fusing Pressure Roller warm-up failure ........................................ 4-36

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................... 4-36
2.6.31 C0511: Fusing Pressure Roller abnormally low temperature ..................... 4-36
2.6.32 C0520: Heating Roller abnormally high temperature ................................. 4-36
2.6.33 C0521: Fusing Pressure Roller abnormally high temperature.................... 4-36
2.6.34 C0650: Scanner Home Sensor malfunction ............................................... 4-36
2.6.35 C0660: Scanner overrun failure.................................................................. 4-36
2.6.36 C0900: 2nd Drawer Lift-Up Motor Failure ................................................... 4-37
2.6.37 C0960: Manual Bypass Paper Lifting Failure..............................................4-37
2.6.38 C0F30: Abnormally low toner density detected Cyan ATDC Sensor..........4-38
2.6.39 C0F32: Abnormally low toner density detected Magenta ATDC Sensor .... 4-38
2.6.40 C0F34: Abnormally low toner density detected Yellow ATDC Sensor ........ 4-38
2.6.41 C0F31: Abnormally high toner density detected Cyan ATDC Sensor ........4-39
2.6.42 C0F33: Abnormally high toner density detected Magenta ATDC Sensor... 4-39
2.6.43 C0F35: Abnormally high toner density detected Yellow ATDC Sensor....... 4-39
2.6.44 C0F36: Abnormally low toner density detected Black ATDC Sensor.......... 4-39
2.6.45 C0F37: Abnormally high toner density detected Black ATDC Sensor ........ 4-40
2.6.46 C0F3A: Cyan ATDC Sensor adjustment failure ..........................................4-40
2.6.47 C0F3B: Magenta ATDC Sensor adjustment failure ....................................4-40
2.6.48 C0F3C: Yellow ATDC Sensor adjustment failure ........................................ 4-40
2.6.49 C0F3D: Black ATDC Sensor adjustment failure .........................................4-41
2.6.50 C1200: Standard Controller configuration failure........................................ 4-41
2.6.51 C1203: Memory mounting failure ...............................................................4-42
2.6.52 C1204: Memory mounting failure ...............................................................4-42
2.6.53 C1220: Image Input Time Out .................................................................... 4-42
2.6.54 C1229: Image Output Time Out ................................................................. 4-42
2.6.55 C1240: JBIG0 Error .................................................................................... 4-43
2.6.56 C1241: JBIG1 Error .................................................................................... 4-43
2.6.57 C1242: JBIG2 Error .................................................................................... 4-43
2.6.58 C1243: JBIG3 Error .................................................................................... 4-43
2.6.59 C1250: Compressor 0 command buffer stop failure ................................... 4-43
2.6.60 C1251: Compressor 1 command buffer stop failure ................................... 4-43
2.6.61 C1252: Compressor 2 command buffer stop failure ................................... 4-43
2.6.62 C1253: Compressor 3 command buffer stop failure ................................... 4-43
2.6.63 C1261: Compression hardware timeout ..................................................... 4-43
2.6.64 C1265: Extraction hardware timeout .......................................................... 4-43
2.6.65 C1279: PCI-SDRAM DMA operation failure ............................................... 4-43
2.6.66 C1290: Compression/extraction timeout detection ..................................... 4-43

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2.6.67 C12B1: Image processing ASIC failure 1 ................................................... 4-43
2.6.68 C12B2: Image processing ASIC failure 2 ................................................... 4-43
2.6.69 C12B3: Image processing ASIC failure 3 ................................................... 4-43
2.6.70 C12B4: Image processing ASIC failure 4 ................................................... 4-43
2.6.71 C12C0: Hard disk recognition error............................................................ 4-44
2.6.72 C12C1: Hard Disk Error 1 .......................................................................... 4-44
2.6.73 C12C2: Hard Disk Error 2 .......................................................................... 4-44
2.6.74 C12C3: Hard Disk Error 3 .......................................................................... 4-44
2.6.75 C12C4: Hard Disk Error 4 .......................................................................... 4-44
2.6.76 C12C5: Hard Disk Error 5 .......................................................................... 4-44
2.6.77 C12C6: Hard Disk Error 6 .......................................................................... 4-44
2.6.78 C12C7: Hard Disk Error 7 .......................................................................... 4-44
2.6.79 C12C8: Hard Disk Error 8 .......................................................................... 4-44
2.6.80 C12C9: Hard Disk Error 9 .......................................................................... 4-44
2.6.81 C12CA: Hard Disk Error A.......................................................................... 4-44
2.6.82 C12CB: Hard disk data transfer error ......................................................... 4-44
2.6.83 C12CC: Hard disk unformat ....................................................................... 4-44
2.6.84 C12CF: Hard disk specifications error........................................................ 4-45
2.6.85 C13C8: New Transfer Cleaner Unit resetting failure................................... 4-45
2.6.86 C13CA: New Fusing Unit resetting failure .................................................. 4-45
2.6.87 C13D1: Cyan Imaging Unit EEPROM access error ................................... 4-45
2.6.88 C13D2: Magenta Imaging Unit EEPROM access error.............................. 4-45
2.6.89 C13D3: Yellow Imaging Unit EEPROM access error.................................. 4-45
2.6.90 C13D4: Black Imaging Unit EEPROM access error ................................... 4-45
2.6.91 C13D5: Cyan LPH correction data download failure .................................. 4-46
2.6.92 C13D6: Magenta LPH correction data download failure ............................ 4-46
2.6.93 C13D7: Yellow LPH correction data download failure ................................ 4-46
2.6.94 C13D8: Black LPH correction data download failure.................................. 4-46
2.6.95 C3310: CCD clamp/gain adjustment failure ............................................... 4-46
2.6.96 C3331: MSC undefined malfunction occurring........................................... 4-47
2.6.97 C3332: Scanner Section undefined malfunction ........................................ 4-47
2.6.98 C3333: Engine Section undefined malfunction .......................................... 4-47
2.6.99 C3E00: NVRAM initialization failure ........................................................... 4-48
2.6.100 C3E01: NVRAM initialization failure ........................................................... 4-48
2.6.101 C3E02: NVRAM initialization failure ........................................................... 4-48
2.6.102 C3F00: Vendor connection failure .............................................................. 4-48
2.6.103 C3FFC: ROM contents error upon startup (LPH)....................................... 4-48

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2.6.104 C3FFD: ROM contents error upon startup (Scanner)................................. 4-48
2.6.105 C3FFE: ROM contents error upon startup (PRT) ....................................... 4-48
2.6.106 C3FFF: ROM contents error upon startup (MSC) ......................................4-48
3. Power supply trouble .......................................................................................... 4-49
3.1 Machine is not Energized at All (PU1 Operation Check) ................................. 4-49
3.2 Control panel indicators do not light. ............................................................... 4-49
3.3 Fusing Heaters do not Operate ....................................................................... 4-50
3.4 Power is not Supplied to Options..................................................................... 4-50
3.4.1 ADF ............................................................................................................ 4-50
3.4.2 Optional Paper Feed Cabinet ..................................................................... 4-50
3.4.3 Finisher....................................................................................................... 4-51
3.4.4 Duplex......................................................................................................... 4-51
4. Image quality problem ........................................................................................ 4-52
4.1 How to read Element date ............................................................................... 4-52
4.1.1 Table # ........................................................................................................ 4-52
4.1.2 Level History 1............................................................................................ 4-53
4.1.3 Level History 2............................................................................................ 4-53
4.2 How to identify problematic part ...................................................................... 4-54
4.2.1 Initial Check Items ...................................................................................... 4-54
4.3 Solution............................................................................................................ 4-56
4.3.1 IR System: white lines in FD, white bands in FD, colored lines in FD,
and colored bands in FD ............................................................................4-56
4.3.2 IR System: white lines in CD, white bands in CD, colored lines in CD,
and colored bands in CD ............................................................................ 4-57
4.3.3 IR System: color spots................................................................................ 4-58
4.3.4 IR System: fog ............................................................................................ 4-59
4.3.5 IR System: blurred image, blotchy image ................................................... 4-60
4.3.6 IR System: incorrect color image registration, sync shift (lines in CD) ....... 4-61
4.3.7 IR System: moire ........................................................................................ 4-62
4.3.8 IR System: skewed image .......................................................................... 4-63
4.3.9 IR System: distorted image ........................................................................ 4-64
4.3.10 IR System: low image density, rough image............................................... 4-65
4.3.11 IR System: defective ACS........................................................................... 4-66
4.3.12 IR System: blank copy, black copy.............................................................. 4-67
4.3.13 IR System: abnormal image ....................................................................... 4-68
4.3.14 Printer Monocolor: white lines in FD, white bands in FD,
colored lines colored bands in FD, white lines in CD,
white bands in CD, colored lines in CD, colored bands in CD .................... 4-69
4.3.15 Printer Monocolor: uneven density in FD ................................................... 4-70

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4.3.16 Printer Monocolor: uneven density in CD................................................... 4-71
4.3.17 Printer Monocolor: low image density ........................................................ 4-72
4.3.18 Printer Monocolor: gradation reproduction failure ...................................... 4-74
4.3.19 Printer Monocolor: foggy background......................................................... 4-76
4.3.20 Printer Monocolor: void areas, white spots ................................................ 4-78
4.3.21 Printer Monocolor: colored spots ............................................................... 4-79
4.3.22 Printer Monocolor: blurred image............................................................... 4-80
4.3.23 Printer Monocolor: blank copy, black copy ................................................. 4-81
4.3.24 Printer Monocolor: 0.5-mm-pitch uneven image ........................................ 4-82
4.3.25 Printer Monocolor: 2-mm-pitch uneven image ........................................... 4-83
4.3.26 Printer Monocolor: 94-mm-pitch uneven image ......................................... 4-84
4.3.27 Printer 4-Color: white lines in FD, white bands in FD,
colored lines in FD, and colored bands in FD............................................. 4-85
4.3.28 Printer 4-Color: white lines in CD, white bands in CD,
colored lines in CD, and colored bands in CD............................................ 4-86
4.3.29 Printer 4-Color: uneven density in FD ........................................................ 4-87
4.3.30 Printer 4-Color: uneven density in CD........................................................ 4-88
4.3.31 Printer 4-Color: low image density ............................................................. 4-89
4.3.32 Printer 4-Color: poor color reproduction..................................................... 4-91
4.3.33 Printer 4-Color: incorrect color image registration...................................... 4-93
4.3.34 Printer 4-Color: void areas, white spots ..................................................... 4-94
4.3.35 Printer 4-Color: colored spots .................................................................... 4-95
4.3.36 Printer 4-Color: poor fusing performance, offset ........................................ 4-96
4.3.37 Printer 4-Color: brush effect, blurred image ............................................... 4-97
4.3.38 Printer 4-Color: back marking .................................................................... 4-98
4.3.39 Printer 4-Color: 204-mm-pitch uneven image ............................................ 4-99
4.3.40 Printer 4-Color: 94-mm-pitch uneven image ............................................ 4-100
V Appendix
1. Parts layout drawing............................................................................................. 5-1
1.1 Main unit............................................................................................................ 5-1
1.1.1 IR section ..................................................................................................... 5-1
1.1.2 Engine section.............................................................................................. 5-2
1.1.3 Tray 1............................................................................................................ 5-7
1.1.4 Tray 2............................................................................................................ 5-8
1.2 DF-601 (Option) ................................................................................................ 5-9
1.3 PC101/PC102 (Option) ................................................................................... 5-10
1.4 PC-401 (Option) .............................................................................................. 5-11

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1.5 FS-501 (Option) ............................................................................................... 5-12
1.6 JS-601 (Option) ............................................................................................... 5-14
1.7 FS-601 (Option) ............................................................................................... 5-15
1.7.1 Main unit ..................................................................................................... 5-15
1.7.2 Horizontal Transport Unit ............................................................................ 5-16
1.8 PK-501 (Option)............................................................................................... 5-17
1.9 AD-501 (Option)............................................................................................... 5-18
2. Connector layout drawing................................................................................... 5-19
3. Timing chart ....................................................................................................... 5-23
3.1 Main unit .......................................................................................................... 5-23
3.2 DF-501.............................................................................................................5-24
3.2.1 1-sided mode.............................................................................................. 5-24
3.2.2 Mixed original detection mode.................................................................... 5-28

SERVICE MANUAL
2004 09
FIELD SERVICE
Standard Controller

SERVICE MANUAL
2004.09
Ver. 2.0
FIELD SERVICE
DF-601

SERVICE MANUAL
2004.09
Ver. 2.0
FIELD SERVICE
PC-101/PC-201