Ricoh FT4222 Manuals

Manuals and User Guides for Ricoh FT4222. We have 1 Ricoh FT4222 manual available for free PDF download: Service Training Manual

Ricoh FT4222 Service Training Manual

Ricoh FT4222 Service Training Manual (209 pages)

Brand: Ricoh | Category: Copier | Size: 2.77 MB

Table of Contents

Important Safety Notices
2
Safety and Ecological Notes for Disposal
3
Overall Machine Information
12
Specifications
13
Copy Processes Around the Drum
16
Mechanical Component Layout
19
Drive Layout
20
Electrical Component Layout
22
Electrical Component Descriptions
24
Opc Drum Characteristics
32
Drum Charge
34
Charge Corona Wire Cleaner Mechanism
35
Charge Corona Circuit
36
Scanner Drive
41
Lens Drive
42
Original Size Detection in Platen Mode
45
Automatic Image Density Sensing
47
Exposure Lamp Voltage Control
49
Exposure Lamp Control Circuit
53
Drive Mechanism
59
Cross-Mixing
60
Development Bias for Image Density Control
61
Development Bias Circuit
65
Detect Supply Mode
67
Fixed Supply Mode
69
Toner Supply Amount
74
Color Toner End Detection
80
Image Transfer and Paper Separation
82
Pre-Transfer Lamp (Ptl)
82
Image Transfer
82
Paper Separation
83
Drum Cleaning
85
Drive Mechanism
86
Toner Overflow Detection
87
Paper Feed and Registration
89
Frr Feed System
90
Paper Size Detection
95
Paper Feed Drive Mechanism
99
Slip Clutch Mechanism
102
Paper Registration
104
Paper Feed and Misfeed Detection Timing
105
Image Fusing
107
Fusing Lamp Control
109
Energy Saver Function
110
Fusing Lamp Control Circuit
111
Document Feeder
114
Specifications
115
Component Layout
116
Electrical Component Descriptions
117
Overall Machine Control
118
Basic Operation
120
Power Distribution
122
Original Feed
124
Original Feed-In Mechanism
126
Original Size Detection
128
Original Inversion Mechanism
129
Original Feed-Out Mechanism
131
Input and Output Circuits
134
Lift Mechanism
135
Original Misfeed Sensing
136
Specifications
139
Component Layout
140
Electrical Component Descriptions
141
Basic Operation
143
Bin Drive Mechanism
146
Bin Drive Circuit
148
Misfeed Detection
149
Installation Procedure
150
Accessory Check
150
Preparation for Transportation
154
Roller Drive Belt Replacement
155
Bin Guide Lubrication
156
Specifications
158
Electrical Component Description
160
Duplex Stacking
163
Installation Procedure
170
Replacement and Adjustment
176
Duplex Tray Removal
176
Feed Motor Replacement
180
Paper End Sensor Replacement
181
Entrance Sensor Replacement
182
Friction Roller Replacement
184
Feed Roller Replacement
185
Detailed Section Descriptions
206

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