Utax P-C2660DN - Page 126

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2PS/2PT

1-5-33

14. Remove three screws and then remove

the main PWB.

15. Check or replace the main PWB and

refit all the removed parts.

Figure 1-5-49

Main PWB

Screw

Main Page

Table of Contents11
Specifications15
Parts Names17
Machine (Front Side)17
Machine (Rear Side)18
Operation Panel19
Machine Cross Section20
Installation Environment21
Unpacking22
Installing the Expansion Memory (Option)30
Installing the SSD (Option for 26/28 Ppm Model Only)32
Installing the Network Interface Card (Option)33
Service Mode35
Executing a Service Mode35
Description of Service Mode36
Printing an Event Log49
Paper Misfeed Detection55
Paper Misfeed Indication55
Paper Misfeed Detection Condition56
Self-Diagnostic Function60
Self Diagnostic Codes61
Image Formation Problems83
No Image Appears (Entirely White)83
No Image Appears (Entirely Black)83
A Specific Color Is Printed Solid85
The Back Side Gets Dirty85
Image Is too Light85
The Background Is Colored86
White Streaks Are Printed Vertically86
Black Streaks Are Printed Vertically86
Streaks Are Printed Horizontally87
Spots Are Printed87
The Leading Edge of Image Begins to Print too Early or too Late87
Paper Is Wrinkled87
Offset Occurs88
Part of Image Is Missing88
Fusing Is Loose88
Colors Are Printed Offset to each Other89
Electric Problems90
Mechanical Problems93
Precautions for Assembly and Disassembly95
Precautions95
Drum95
Toner95
Outer Covers96
Detaching and Refitting the Top Cover96
Detaching and Refitting the Right Rear Cover, Right Cover and Right Lower Cover98
Detaching and Refitting the Left Rear Cover, Left Cover and Left Lower Cover101
Detaching and Refitting the Inner Cover103
Paper Feed Section105
Detaching and Refitting the Retard Roller Unit105
Detaching and Refitting the Paper Feed Roller Unit107
Detaching and Refitting the MP Paper Feed Roller109
Developing Section111
Detaching and Refitting the Developing Unit111
Drum Section113
Detaching and Refitting the Drum Unit113
Transfer/Separation Section114
Detaching and Refitting the Intermediate Transfer Unit114
Detaching and Refitting the Transfer Roller Unit117
Fuser Section118
Detaching and Refitting the Fuser Unit118
Pwbs119
Detaching and Refitting the Engine PWB119
Detaching and Refitting the Power Source PWB121
Detaching and Refitting the Main PWB122
Detaching and Refitting the High Voltage PWB127
Drive Section128
Detaching and Refitting the MP Feed Drive Unit128
Detaching and Refitting the Drum/Developing Drive Unit129
Detaching and Refitting the Paper Feed Drive Unit131
Detaching and Refitting the Fuser Pressure Drive Unit132
Detaching and Refitting the Middle Transfer Drive Unit134
Optical Section136
Detaching and Refitting the Laser Scanner Unit136
Others139
Detaching and Refitting the Paper Conveying Unit139
Detaching and Refitting the Operation Panel141
Detaching and Refitting the Power Source Inlet142
Direction of Installing the Principal Fan Motors144
Upgrading the Firmware146
Remarks on Engine PWB Replacement148
Paper Feed/Conveying Section150
Cassette Paper Feed Section (21/23 Ppm Model)150
Cassette Paper Feed Section (26/28 Ppm Model)151
MP Tray Paper Feed Section153
Paper Conveying Section155
Drum Section157
Developing Section159
Laser Scanner Section161
Transfer/Separation Section163
Intermediate Transfer Unit Section163
Secondary Transfer Roller Section165
Fuser Section166
Eject/Feedshift Section168
Duplex Conveying Section170
Electrical Parts Layout172
Pwbs172
Switches and Sensors175
Motors177
Others178
Power Source PWB180
Engine PWB182
Main PWB192
Drum Relay PWB197
Appendixes200
Maintenance Kits (26/28 Ppm Model Only)200
Repetitive Defects Gauge201
Firmware Environment Commands202
Maintenance Commands208
Wiring Diagram209

Utax P-C2660DN - Page 126

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