Name: Olivetti d-Color MF920
Brand: Olivetti
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4-8 Service Manual

AIO back cable cover removal

1. Remove the two screws (A) which secure the AIO back cable cover to the MFP.

2. Place a small flat-blade screwdriver under the bottom of the cover, and gently pry the cover upward.

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