Ricoh Fx880 Manuals

Manuals and User Guides for Ricoh Fx880. We have 1 Ricoh Fx880 manual available for free PDF download: Service Manual

Ricoh Fx880 Service Manual

Ricoh Fx880 Service Manual (156 pages)

FAX880 MP MV 74 Fax and printer

Brand: Ricoh | Category: Fax Machine | Size: 2.87 MB

Table of Contents

Table of Contents
3
Overall Machine Information

7
Specifications

7
Features

8
Component Layout

11
- Mechanical Components
  11
- Electrical Components
  12
  - Pcbs
    12
  - Motors
    13
  - Sensors
    13
Overall Machine Control

14
Video Data Path

16
- Transmission
  16
- Reception
  17
- Copying
  18
- Printing from the Centronics Interface
  19
Power Distribution

20
- Distribution Diagram
  20
- Memory Back-Up Circuit
  21
Detailed Section Descriptions

22
Scanner

22
- Mechanisms
  22
- Printer Configuration
  25
  - Ink Cartridge (Black and Color)
    26
- Printer Head
  27
  - Mechanism
    27
  - Drive Circuitry
    28
  - Print Signals
    29
  - Purge Unit
    30
  - Components
    30
  - Purge Unit Functions
    31
  - Paper Feed
    32
  - Overview
    32
  - Drive Mechanism
    33
  - Ink End Detection
    34
  - Maximum Print Lengths
    35
- Data Reduction and Page Separation . . . . . . . . . 2.3. Pcbs
  36
- Fce
  37
  - FCIP (Facsimile Controller and Image Processor)
    37
  - Rom
    37
  - Dram
    38
  - Sram
    38
  - Video SRAM
    38
  - Oscillators
    38
  - Jumpers, Switches, and Test Points
    38
- Fdu
  39
  - Printer Head Drive Circuit
    39
  - Drivers
    39
  - Sensors
    39
  - DC/DC Converter
    40
  - Battery
    40
  - Jumpers, Switches, and Test Points
    40
- Ijc
  41
  - Cpu (Mpu)
    41
  - Printer Controller
    41
  - Rom
    41
  - Dram
    41
  - Oscillators
    42
  - Raster Image Data Controller (RIDC2)
    42
  - Sram
    42
  - HIC (Hybrid IC)
    42
  - Eeprom
    42
  - Centronics Interface
    42
  - Jumpers, Switches, and Test Points
    42
- Psu
  43
  - Ncu (Usa)
    44
  - Jumpers
    44
  - NCU (Europe/Asia)
    45
  - Control Signals and Jumpers
    45
  - Installation
    46
  - Installing the Machine
    46
  - Initial Programming
    46
  - Service Tables and Procedures
    47
  - Service Level Functions
    47
  - Bit Switch Programming (Function 01)
    47
  - System Parameter List (Function 02)
    48
- Error Code Display (Function 03)
  48
- Service Monitor Report (Function 04)
  48
- Protocol Dump (Function 05)
  49
- RAM Display/Rewrite (Function 06)
  49
- RAM Dump (Function 06)
  50
- Counter Display/Rewrite (Function 07)
  50
- NCU Parameters (Function 08)
  51
- Modem Test (Function 08)
  51
- DTMF Tone Test (Function 08)
  52
- Modem Detection Test (Function 08)
  53
- Operation Panel Test (Function 09)
  53
- LED Array Test (Function 10)
  54
- ADF Test (Function 10)
  54
- Printer Test Patterns (Function 11)
  55
- Printing the EEPROM Information Sheet and Initializing the EEPROM (Function 11)
  56
- Printer Mechanism Test - Free Run (Function 11)
  57
- Ink End Sensor Initialization (Function 11)
  58
- RAM Tests (Function 12)
  58
- Software Download (Function 12)
  59
- Software Upload (Function 12)
  60
- SRAM Data Download (Function 12)
  61
- Serial Number (Function 14)
  62
- Service Station Fax Number (Function 13)
  62
2.2. Printer . . . . . . . . . . . . . . . . . . . . . . 2-4

25
2.3. Pcbs . . . . . . . . . . . . . . . . . . . . . . . 2-16

37
Bit Switches

63
- System Switches
  63
- Scanner Switches
  71
- Printer Switches
  73
- Communication Switches
  74
- G3 Switches
  80
Ncu Parameters

85
- Default Settings
  99
- Dedicated Transmission Parameters
  111
- Programming Procedure
  111
- Parameters
  112
- Service Ram Addresses
  114
- Special Tools and Lubricants
  125
- Removal and Adjustment
  126
- Covers
  126
  - Operation Panel Assembly [A and B]
    126
  - Upper Cover [A] and IC Card Cover [B]
    127
  - Paper Feed Unit and Roller Assembly
    127
  - Paper Feed Unit [A]
    127
  - Paper Feed Roller Assembly [A]
    128
  - Pcbs
    128
  - Psu [A]
    128
  - Ijc [A]
    129
  - Fdu [A]
    130
  - Ncu [A]
    130
5.4. Scanner . . . . . . . . . . . . . . . . . . . . . 5-6

131
- Contact Image Sensor [A]
  131
- Scanner Rollers [A, B, C]
  131
- Printer
  132
- Chassis [C]
  132
- Thermal Ink Jet (TIJ) Unit [A] and Paper Output Guide [B]
  133
- Purge Unit
  133
- Ink Absorbers
  134
6 Troubleshooting

135
Copy Quality Troubleshooting

135
- Blank Copies
  136
- Black Copies
  137
- Dirty Background
  137
- Uneven Image Density
  137
- Vertical Black Lines
  138
- Vertical White Lines
  139
- Horizontal White Lines
  140
- Faint Copies
  141
- Misaligned Output (Data Shifted to the Right or Left)
  142
- Replace Cartridge Still Displayed after Cartridge Replacement
  142
Mechanical Problems

143
- Adf/Scanner
  143
  - Non-Feed
    143
  - Skew
    145
  - Multi-Feed
    145
  - Non-Feed
    146
Printer

146
- Paper Jam
  146
- Multi-Feed
  147
- Skew
  147
- Service Call Conditions
  148
- Error Codes
  149
- Electrical Component Defects
  155
- Defective Sensor Table
  155
- Blown Fuse Table
  155

Advertisement

Advertisement

Related Products

Ricoh Categories

All in One Printer

All in One Printer

Printer

Digital Camera

Digital Camera Copier Printer Accessories

More Ricoh Manuals