Ricoh C252 Manuals

Ricoh C252 Manuals

Manuals and User Guides for Ricoh C252. We have 1 Ricoh C252 manual available for free PDF download: Service Manual

Ricoh C252 Service Manual

Ricoh C252 Service Manual (164 pages)

Ricoh C252 MFP Service manual

Brand: Ricoh | Category: All in One Printer | Size: 5.72 MB

Table of Contents

Service Manual
1
Table of Contents
13
Important Safety Notices
17
1 Installation

21
- Installation Requirements
  23
  - Optimum Environmental Condition
    23
  - Environments to Avoid
    23
  - Power Connection
    23
  - Minimum Space Requirements
    24
  - Dimensions
    24
- Installation Procedure
  25
  - Main Body
    25
  - Additional Drums (Option)
    34
  - Interface Board (Option)
    35
2 Preventive Maintenance

37
- Maintenance Table
  39
- Paper Feed
  39
3 Replacement and Adjustment

41
- General Caution
  43
- Covers
  43
  - Panel/Front Covers
    43
  - Rear Cover
    44
- Boards
  45
  - Mpu
    45
  - Psu
    46
- Scanner
  47
  - Covers
    47
  - 1St, 2Nd Feed Roller/Cis (Contact Image Sensor)
    48
  - Document Sensor
    49
  - Scanner Motor
    49
- Master Feed
  50
  - Master Making Unit
    50
  - Thermal Head
    52
  - Thermal Head Voltage Adjustment
    53
  - Master End Sensor Adjustment
    54
- Master Eject
  55
- Printing
  59
  - Press Roller
    59
  - Paper Registration Roller
    60
  - Press Roller Release Lever Adjustment
    62
  - Printing Pressure Adjustment
    63
- Drum
  64
  - Preparation
    64
  - Cloth Screen
    64
  - Clamper / Metal Screen
    66
  - Ink Pump Adjustment
    68
  - Doctor Roller Gap Adjustment
    70
  - Ink Detection Adjustment
    71
- Paper Delivery
  72
  - Paper Delivery Unit
    72
  - Delivery Belt/Paper Exit Sensor
    73
  - Vacuum Fan Motor Position
    74
  - Exit Pawl Adjustment
    75
  - Timing Adjustment
    76
- Main Drive
  78
  - Main Drive Timing Belt Adjustment
    78
  - Main Motor Pulley Position
    79
- Firmware Update
  80
4 Troubleshooting

81
- Error Codes
  83
- Electrical Component Defects
  84
- Fuse, Led, Vr, Dip-Sw, and Tp Tables
  86
  - Blown Fuse Conditions
    86
  - Led's
    86
  - Vr's
    86
  - Test Points
    87
  - Dip Switches
    87
- Jam Detection
  88
Service Tables

95
- Service Program Mode
  97
- Dip Switches
  102
  - Overview
    102
  - Dipsw101 No.1 to 4 - Paper Registration Position
    103
    
    Adjustment
    104
  - Dipsw101 No.5 to 8 - Master Writing Position
    104
  - Dipsw102 No.1 to 3 - Thermal Head Energy Control
    105
  - Dipsw103 No.1 to 4 - Scanning Speed Adjustment
    106
  - Dipsw103 No.5 to 8 - Master Feeding Speed
    107
    
    Adjustment
    107
Detailed Descriptions

109
6 Detaild Section Descriptions

111
- Mechanism Overview
  111
  - Major Parts
    111
  - Electrical Component Layout
    112
  - Drive Layout
    115
  - Master Eject Unit
    116
  - Master Eject Rollers
    116
  - Overview
    116
  - Master Clamper Opening Mechanism
    117
  - Master Eject Roller Mechanism
    118
  - Pressure Plate Mechanism
    119
- Scanner Unit
  120
  - Scanner Drive
    120
- Image Processing
  121
  - Image Processing Flow
    121
- Master Feed
  122
  - Overview
    122
  - Master Feed Mechanism
    123
  - Clamper and Tension Roller Mechanism
    124
  - Cutter Mechanism
    125
  - Master Set Cover Sensor
    126
- Drum
  127
  - Overview
    127
- Sm C252
  127
  - Drum Drive Mechanism
    128
  - Ink Supply Mechanism
    129
  - Ink Roller Mechanism
    130
  - Ink Supply Control
    131
  - Detection of Masters on the Drum
    132
  - Paper Feed
    133
    
    Paper Feed Mechanism
    134
    
    Paper Feed / Separation Pressure Mechanism
    135
    
    Registration Roller Mechanism
    136
    
    Registration Sensor Cleaning
    138
    
    Printing Pressure Mechanism
    139
    
    Re-Feeding Mechanism
    139
    
    Paper Table Mechanism
    140
  - Paper Delivery
    142
    
    Overview
    142
    
    Paper Delivery Unit Drive Mechanism
    143
    
    Paper Separation from the Drum
    144
    
    Exit Pawl Drive Mechanism
    145
  - Timing Chart
    147
    
    Master Eject/Master Feed
    147
    
    Master Wrapping
    148
    
    Printing
    149
Specifications

151
- General Specifications
  153

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