Name: Ricoh MF4
Brand: Ricoh
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9. Waste toner bottle set sensor [C] (3hooks, × 1)

• When reinstalling the waste toner bottle set sensor, connect it to the white connector of the harness.

Waste Toner Overflow Sensor

1. Waste toner sensor base (page 75 "Waste Toner Bottle Set Sensor")

2. Waste toner overflow sensor [A] (3hooks, × 1)

• When reinstalling the waste toner overflow sensor, connect it to the black connector of the harness.

Image Transfer

Safety Notices3
- Important Safety Notices3
- Laser Safety4
Symbols, Abbreviations and Trademarks5
- Trademarks5
- Table of Contents6
1 Product Information13
General Specifications13
Supported Paper Sizes14
Machine Overview15
- Component Layout15
- Paper Path18
  - ADF (Only for M203/M204)18
- Drive Layout19
Machine Configuration21
- Printer Model (M199/M200)21
- MF Model (M203/M204)21
Guidance for those Who Are Familiar with Predecessor Products22
2 Installation23
Installation Requirements23
- Environment23
- Machine Level24
- Machine Space Requirements24
  - Printer Models (M199/M200)24
  - MF Models (M203/M204)25
- Power Requirements25
- Installation Procedure26
3 Preventive Maintenance27
4 Replacement and Adjustment29
Before You Start29
- General Precautions29
- Releasing Plastic Latches31
- After Servicing the Machine31
- Lithium Batteries (MF Models)32
Special Tools33
Exterior Covers34
- Rear Cover34
  - Rear Cover (Printer Models)34
  - Rear Cover (MF Models)35
- Right Cover36
- Left Cover37
- Front Cover Unit38
Scanner Unit (Only for MF Models)40
- Scanner Unit40
ADF (Only for MF Models)44
- ADF Unit44
- Original Tray45
- ADF Pick-Up Roller45
- ADF Feed Roller46
- ADF Separation Pad47
- ADF Front Cover47
- ADF Rear Cover48
- ADF Motor49
- ADF Top Cover50
- Document Sensor51
- ADF Feed Sensor54
Laser Unit55
- Caution Decal Locations55
- Laser Optics Housing Unit55
AIO Cartridge (All in One Cartridge)64
- AIO Cartridge64
- Black AIO Motor64
- Color AIO Motor67
Image Transfer70
- Image Transfer Belt Unit70
  - After Replacing the Image Transfer Belt Unit71
- ITB (Image Transfer Belt) Cleaning Unit71
- Agitator Motor72
- ITB (Image Transfer Belt) Contact Motor74
- ITB (Image Transfer Belt) Contact Sensor75
- TM (Toner Mark) Sensor Base76
- Waste Toner Bottle Set Sensor77
- Waste Toner Overflow Sensor79
Paper Transfer80
- Transfer Unit80
- Transfer Roller80
- Registration Roller82
  - Reassembling the Registration Roller Unit83
- Registration Sensor83
- Registration Clutch84
Image Fusing85
- Fusing Unit85
- Fusing Lamp87
  - When Reinstalling the Fusing Lamp90
  - When Reassembling the Fusing Unit91
- Transport/Fusing Motor92
Paper Feed94
- Paper Feed Clutch94
- Paper Feed Roller94
- Separation Pad95
- Paper End Sensor96
Paper Exit98
- Paper Exit Roller98
- Paper Exit Sensor99
Electrical Components101
- Controller Board101
  - Controller Board (Printer Models)101
  - Controller Board (MF Models)102
- EGB (Engine Board)104
  - EGB (Printer Models)104
  - EGB (MF Models)106
- FCU (Only for MF Models)108
- Operation Panel109
- Opu112
  - OPU (Printer Models)112
  - OPU (MF Models)112
- Wi-Fi Board113
- Interlock Switches114
- Fusing Fan Motor115
- Fusing Stripper Pawl Solenoid116
- Fusing Pressure Release Sensor119
- LSU Fan Motor119
- ID Chip Board120
- Psu121
- High Voltage Power Supply Board123
- Temperature/Humidity Sensor124
- Duplex Motor124
- Speaker (Only for MF Models)127
- Eeprom128
  - Checking that MUSIC was Performed Correctly130
5 System Maintenance Reference131
Service Menu131
- Overview131
  - Menu Mode131
  - Special Mode131
- Maintenance Mode Menu (MF Models)132
  - Menu List132
- Service Mode (Printer Models)144
  - Menu List144
- Fax Service Test Menu (Only for MF Models)148
- Size Mismatch Detection Menu150
  - Entering the Size Mismatch Detection Menu150
Configuration, Maintenance and Test Page Information151
- Overview151
  - To Print the Configuration Page/ Test Page/ Maintenance Page (Printer Models)151
  - To Print the Configuration Page/ Maintenance Page (MF Models)151
- Error Log152
- Counter and Coverage (Only for Printer Models)152
  - Configuration Page152
Firmware Updating154
- Checking the Machine Firmware Version154
  - To Print the Configuration Page (Printer Models)154
  - To Print the Configuration Page (MF Models)154
- Updating the Controller Firmware154
  - Procedure155
- Updating the Engine Firmware157
- Boot Loader Firmware160
6 Troubleshooting161
Service Call Conditions161
- Summary161
- Engine SC161
- Controller SC171
  - Sc8Xx171
Error Codes172
- Overview172
- Error Codes List172
Fax Error Code Definition (Only for MF Models)176
- Basic Error Code Structure176
- Error Code Table177
  - The Following Information Is also Included in the User Guide180
Fax Error Clear Principle (Only for MF Models)184
Image Problems185
- Overview185
- Image Problem185
7 Environmental Conservation187
Energy Saving187
- Energy Saver Modes187
  - Timer Settings (Printer Models)188
Paper Save190
- Controller Specifications206
- User Replaceable Items213
- Yield Items and Service Maintenance213
- Exchange and Replace Procedure215
- Cleaning Points after Machine Arrival at Depot215

Ricoh MF4 User Manual

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Ricoh MF4 Specifications

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Brand	Ricoh
Model	MF4
Category	All in One Printer
Language	English