Name: Olivetti d-Color MF920
Brand: Olivetti
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4-88 Service Manual

ADF separator roll assembly

1. Lift the locking lever (A).

2. Slightly lift the separator roll assembly, and pull it out of the mount (B) on the opposite side.

Y112730-2

Default Chapter3
- Table of Contents3
Table of Contents11
Notices and Safety Information11
- Laser Notice11
- Lithium Warning17
- Safety Information17
Preface21
- Conventions21
General Information23
- Models23
- Options and Features24
- Media Handling30
- Digital Imaging Specifications38
  - General Specifications38
  - Scan and Copy Specific Specifications39
Fax Specifications40
- Phone Network Connectivity40
- Fax Resolutions40
- Miscellaneous FAX Specifications40
Tools Required for Service41
Acronyms42
Diagnostic Information45
Start45
POR (Power-On Reset) Sequence46
Symptom Tables47
- Printer Symptom Table47
- Scan / Fax / Copy Symptom Table48
- Print Quality Symptom Table49
Error Codes and Messages50
- User Status and Attendance Messages50
- Paper Jam Messages57
- Service Error Messages59
- Fax Error Log Codes71
Service Checks75
- 90X.XX Error75
- 925.01-Fan Error Service Check75
- Printhead Service Check76
- 950.XX NVRAM Failure Service Check77
- Autocompensator Mechanism Service Check77
- Bin Full Sensor Service Check78
- Dead Printer Service Check79
- Duplex/Manual Feed Sensor (S1) Service Check80
- Front Door Sensor or Switches Service Check81
- Fuser Exit Sensor Service Check82
- Fuser Service Check83
- Input Sensor (S2) Service Check84
- Main Drive Gear Assembly (EP Drive) Service Check85
- Operator Panel Service Check86
  - One or more Operator Panel Buttons Fail86
  - Operator Panel Display Blank, Five Beeps86
  - Operator Panel Display Blank, Printer Beeps Five Times and Pauses87
  - Operator Panel Displays All Diamonds, no Beeps88
  - Operator Panel Displays All Diamonds, Five Beeps88
  - Operator Panel Display Is DIM and Unchanging89
- Op Panel USB Cable Service Check89
- USB Service Check89
- Networking Service Check90
- Print Quality Service Check92
  - Print Quality-Background93
  - Print Quality-Blank Page94
  - Print Quality-Blurred or Fuzzy Print96
  - Print Quality-Half-Color Page96
  - Print Quality-Horizontal Banding96
  - Print Quality-Horizontal Line97
  - Print Quality-Insufficient Fusing97
  - Print Quality-Missing Image at Edge97
  - Print Quality-Mottle (2-5Mm Speckles)97
  - Print Quality-Narrow Vertical Line98
  - Print Quality-Random Marks98
  - Print Quality-Residual Image99
  - Print Quality-Solid Color Page100
  - Print Quality-Vertical Banding100
- Printhead Service Check101
  - Toner Meter Cycle (TMC) Card102
  - Toner Sensors (Y, C, M, K) on TMC Card102
  - Transfer Roll Service Check103
  - Tray (X) Sensor Service Check104
  - Option Trays 2 and 3 Service Check105
  - 840.XX Service Check107
  - Black or Blank Page Copy Service Check109
  - CCD Service Check109
  - Flatbed Motor Service Check109
  - Flatbed Home Position Service Check110
  - ADF Cover Open Service Check111
  - ADF Streak Service Check111
  - ADF Paper Jam Service Check112
  - ADF Feed Errors Service Check113
  - ADF Duplex Service Check114
  - Modem / Fax Card Service Check115
  - Fax Transmission Service Check116
  - Fax Reception Service Check118
  - Escalating a Fax Issue to Second-Level Support120
- User Operator Panel, Menus and Messages121
  - Understanding the Operator Panel121
  - Operator Panel Buttons121
  - Menu Map123
Diagnostic Aids125
- Menu Key Combinations125
- Diagnostics Menu (Diag Menu)126
- EP Setup145
- TPS Setup146
- Reports146
  - Main Settings Page146
- Event Log147
- Scanner Tests149
- EXIT Diags154
Configuration Menu155
- Available Tests155
- USB Scan to Local155
- Prt Quality Pages155
- Color Trapping155
- Reports156
  - Menu Settings Page156
  - Event Log156
- Panel Menus156
- PPDS Emulation156
- Demo Mode157
- Factory Defaults157
- Energy Conserve157
- Min Copy Memory158
- Format Fax Storage158
- Auto Color Adj158
- ADF Edge Erase158
- FB Edge Erase159
- Scanner Manual Registration159
  - To Manually Register a Duplex ADF, Perform the Following Steps159
  - To Manually Register the Flatbed, Perform the Following Steps160
- Disable Scanner160
- Font Sharpening161
- Pel Blurring161
- Exit Config Menu161
SE Menu162
- Print SE Menus162
- General162
- Code Revision Info162
- History162
- Mac162
- Nvram162
- Npap162
  - Tcp/Ip162
- Paper Jams163
  - Avoiding Jams163
  - Understanding Jam Numbers and Locations164
- Updating Printer Firmware170
- Theory of Operation181
Repair Information199
- Handling ESD-Sensitive Parts199
  - Testing Generic Frus199
- Removal Procedures200
- Print Engine Removal Procedures200
  - Front Cover Assembly Removal200
  - Front Middle Cover Removal202
- Left Cover Removal202
- Right Cover Removal205
- Rear Shield Removal205
- AIO Back Cable Cover Removal206
- Top Cover Assembly Removal207
  - Installation209
- Autocompensator Mechanism (ACM)-Standard Tray Removal210
- Bin Full Sensor213
- Narrow Media Sensor Flag Removal214
- Controller Board Removal216
- Duplex Reference Edge Removal218
- Duplex Sensor Removal221
- Fuser Assembly Removal223
- Fuser Drive Motor Assembly Removal226
- Fuser Exit Sensor Removal227
- High-Voltage Power Supply (HVPS) Assembly Removal229
  - High Voltage Power Supply (HVPS) with no Spring Removal230
  - High-Voltage Power Supply (HVPS) with Spring231
- Image Transfer Unit (ITU)233
- Imaging Unit (IU) Removal238
- Developer Unit Removal240
- Low-Voltage Power Supply (LVPS) Assembly241
- Lower Frame Removal, Right and Left243
  - Left Lower Frame243
  - Right Lower Frame246
- Main Drive Gear Assembly with Motor Removal251
- Pick Tires Removal-Integrated 250-Sheet Media Tray253
- Printhead Removal254
- Imaging Unit (IU) Removal255
- Toner Cartridge Contacts257
- Toner Meter Cycle (TMC) Card Removal259
- Toner Density Sensor (TPS)-Left and Right Removal261
- Tray Present Sensor Removal262
- USB Connector Removal265
- Waste Toner Bottle265
- Waste Toner Bottle Contact Block Removal266
- Wireless Network Antenna267
- Wireless Network Card269
Scanner Component Removal Procedures270
- Flatbed Removal270
  - Preparing and Installing the New Flatbed276
- Flatbed Pivot Link Removal279
- Duplex ADF Rear Cover280
- Duplex ADF Removal281
- Simplex ADF Rear Cover282
- Simplex ADF Removal282
- ADF Input Tray282
- ADF Cable Removal283
- ADF Separator Pad285
- ADF Separator Roll Assembly286
- Bezel Cover287
- Redrive Unit289
- Cover Scanner Left290
- Cover Scanner Right291
- AIO Release Lever293
- AIO Link294
- AIO Toner Cover295
- Operator Panel Removal296
- Op Panel Bezel Removal298
Locations303
- Exterior Views303
Preventive Maintenance323
- Safety Inspection Guide323
- Scheduled Maintenance323
  - Maintenance Kit323
- Lubrication Specifications323
Index325

Olivetti d-Color MF920 Service Manual

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Brand	Olivetti
Model	d-Color MF920
Category	All in One Printer
Language	English