Ricoh A184 Manuals

Manuals and User Guides for Ricoh A184. We have 2 Ricoh A184 manuals available for free PDF download: Service Manual, Technical Bulletin

Ricoh A184 Service Manual

Ricoh A184 Service Manual (221 pages)

Brand: Ricoh | Category: Copier | Size: 3.11 MB

Table of Contents

Table of Contents
9
Overall Information

21
- Specifications
  
  23
- Copy Process Around the Drum
  
  26
- Mechanical Component Layout
  
  28
- Electrical Component Descriptions
  
  29
Detailed Descriptions

31
- Drum
  
  33
  - Opc Drum Characteristics
    33
  - Drive Mechanism
    34
- Charge
  
  35
  - Overview
    35
  - Charge Corona Circuit
    36
- Optics
  
  37
  - Overview
    37
  - Scanner Drive
    38
  - LENS and 4TH/5TH MIRROR DRIVE (A184 Copier Only)
    39
  - Automatic Image Density Sensor
    40
  - Exposure Lamp Voltage Control
    41
- Erase
  
  44
  - Overview
    44
  - Lead Edge Erase
    45
  - SIDE ERASE (A184 Copier Only)
    45
  - Trailing Edge Erase
    45
- Development
  
  46
- Toner Supply
  
  53
  - Toner Supply Mechanism
    53
  - Toner Density Detection
    54
  - Toner Supply Control
    55
    
    Detect Supply Mode
    55
    
    Fixed Supply Mode
    58
    
    TD Sensor Check and Toner Supply Timing
    58
    
    Abnormal Condition in Toner Density Detection
    58
  - Toner End Condition
    59
    
    Toner Near End
    59
    
    Toner End
    59
    
    Toner End Recovery
    59
- Image Transfer
  
  60
  - Overall
    60
  - Transfer Corona Circuit
    61
- Drum Cleaning
  
  62
  - Overview
    62
  - Toner Recycling Mechanism
    63
- Quenching
  
  64
- Paper Feed and Registration
  
  65
  - Overview
    65
  - Paper Feed Mechanism
    66
  - Registration Mechanism
    67
  - By-Pass Feed
    68
  - Paper Feed and Misfeed Detection Timing
    69
- Image Fusing
  
  70
  - Overview
    70
  - Fusing Drive Mechanism
    71
  - Fusing Lamp Control
    72
  - Fusing Lamp Control Circuit
    74
    
    Overview
    74
    
    On/Off Control
    75
    
    Phase Control Mode
    75
    
    Overheat Protection
    76
- Installation Requirements
  
  79
  - Environment
    79
  - Machine Level
    79
  - Minimum Space Requirements
    80
  - Power Requirements
    80
- Installation
  
  81
  - Accessory Check
    81
  - Installation Procedure
    82
Service Tables

87
- Service Remarks
  
  89
  - General Cautions
    89
  - Imaging Unit
    89
  - Optics
    90
  - Transfer Corona
    91
  - Fusing Unit
    91
  - Paper Feed
    91
  - Others
    92
- Program Modes
  
  93
  - Basic Operation
    93
  - Sp Mode
    94
  - Sp Mode Quick Reference Table
    96
  - Up Mode and Sp Mode Cross Reference Table
    97
  - Service Program Mode Table
    98
  - Clear All Memory Procedure
    109
- Service Tables
  
  111
  - TEST POINTS (Main Control Board)
    111
  - Variable Resistors
    111
Preventive Maintenance

113
- Preventive Maintenance Schedule
  
  115
  - Pm Table
    115
  - Regular Pm Procedure
    117
- Special Tools and Lubricants
  
  119
Replacement Adjustment

121
- Exterior
  
  123
  - Operation Panel Position Change
    123
  - Platen Cover Position Change
    124
  - Exterior Cover/Exposure Glass Removal
    125
  - Upper Unit Stopper Release
    126
- Optics
  
  127
  - 1St Scanner Removal
    127
  - 2Nd Mirror Replacement
    128
  - 3Rd Mirror Replacement
    129
  - Lens and 4Th/5Th Mirror Position Adjustment
    130
    
    (A184 Model Only)
    130
  - 4Th Mirror Removal
    131
  - 5Th Mirror Removal
    132
  - Lens and Mirror Motor Removal
    133
- Imaging Unit
  
  134
  - Imaging Unit Removal
    134
  - Charge Corona Unit Removal
    135
  - Cleaning Blade Replacement
    136
- Paper Feed
  
  137
  - Paper Feed Clutch Replacement
    137
  - Paper Feed Roller Removal
    138
  - Registraion Solenoid Replacement
    139
- Fusing
  
  140
  - Fusing Unit Removal
    140
  - Pressure Roller Replacement
    141
  - Fusing Lamp Replacement
    142
  - Fusing Exit Pawl Replacement
    143
  - Hot Roller Replacement
    144
  - Fusing Thermistor Replacement
    145
  - Fusing Thermofuse Replacement
    145
- Others
  
  146
  - Transfer Corona Unit Removal
    146
  - Main Drive Unit Removal
    147
  - Main Motor Removal
    148
  - Toner Supply Clutch Removal
    149
  - Erase Lamp Removal
    150
  - Quenching Lamp Removal
    151
  - Ozone Filter Replacement
    152
  - Ac Drive/DC Power Supply Board/Transformer
    153
    
    Replacement
    153
  - Main Control Board Replacement
    154
- Copy Quality Adjustment
  
  155
  - Light Intensity Adjustment
    156
    
    Base Exposure Lamp Voltage Adjustment
    156
    
    SP Image Density Adjustment
    157
  - Development Bias Voltage Adjustment
    158
    
    Base Bias Voltage Adjustment
    158
    
    SP Bias Settings
    159
  - Toner Density Adjustment
    159
  - Grid Voltage Adjustment
    160
  - Drum Current Adjustment
    161
  - Ads Adjustment
    163
  - Vertical Magnification Adjustment
    163
  - HORIZONTAL MAGNIFICATION ADJUSTMENT (A184 Only)
    163
  - Registration Adjustment
    164
  - Erase Margin Adjustment
    164
  - Focus Adjustment
    165
Troubleshooting

167
- Copy Quality
  
  169
  - Blank Copy (White Copy)
    169
  - Dirty Background
    171
  - Uneven Image Density
    173
  - Vertical Black Bands
    174
  - Vertical Black Lines
    175
  - Vertical White Lines or Bands-1 (Dull or Blurred)
    176
  - Vertical White Lines or Bands-2 (Thin, Distinct)
    177
  - Horizontal Black/White Lines
    178
  - Jitter
    179
  - Black Spots on the Copy Image
    180
  - Skewed (Optical) Copy Image
    181
  - Toner Density too High
    182
  - Toner Density too Low
    184
  - Unfused Copy Image
    186
  - Creasing Paper after Fusing
    186
  - Paper Misfeed
    187
  - Abnormal Condition in Toner Density Detection
    188
  - Optics Overheat Protection
    190
- Service Call Conditions
  
  191
- Electrical Component Defects
  
  197
  - Sensors
    197
  - Switches
    197
- Blown Fuse Conditions
  
  198
- User Codes
  
  198

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Ricoh A184 Technical Bulletin

Ricoh A184 Technical Bulletin (19 pages)

Brand: Ricoh | Category: Printer | Size: 0.3 MB

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