Kyocera mita KM-1525 - Service Manual

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SERVICE

MANUAL

Published in Mar.’01

842BV110

Main Page

Table of Contents9
Image Is out of Focus87
Image Center Does Not Align with the Original Center87
Image Is Not Square87
Image Contrast Is Low (Carrier Scattering)87
Electrical Problems95
The Scanner Motor Does Not Operate95
The Toner Feed Motor Does Not Operate95
Cooling Fan Motor 1 Does Not Operate95
Cooling Fan Motor 2 Does Not Operate95
Cooling Fan Motor 3 Does Not Operate95
The Registration Clutch Does Not Operate96
The Paper Feed Clutch Does Not Operate96
The Exposure Lamp Does Not Turn off96
The Fixing Heater Does Not Turn on (C610)96
Main Charging Is Not Performed (C510)97
In the Drawer97
When the Main Switch Is Turned on97
Paper Conveying Unit Are Closed98
Others98
Mechanical Problems99
No Primary Paper Feed99
No Secondary Paper Feed99
Skewed Paper Feed99
The Scanner Does Not Travel99
Multiple Sheets of Paper Are Fed at One Time99
Paper Jams99
Toner Drops on the Paper Conveying Path99
Abnormal Noise Is Heard99
Precautions for Assembly and Disassembly100
Precautions100
Running a Maintenance Item101
Paper Feed Section102
Detaching and Refitting the Paper Feed Pulleys102
Detaching and Refitting the Bypass Paper Feed Pulley104
Detaching and Refitting the Left Registration Cleaner Assembly106
Detaching and Refitting the Right Registration Cleaner Assembly106
Detaching and Refitting the Bypass Paper Width Switch107
Adjustment after Roller and Clutch Replacement108
Adjusting the Leading Edge Registration of Image Printing108
Adjusting the Center Line of Image Printing109
Adjusting the Margins for Printing110
Adjusting the Amount of Slack in the Paper111
Optical Section112
Detaching and Refitting the Exposure Lamp112
Detaching and Refitting the Scanner Wires113
Detaching the Scanner Wires113
Fitting the Scanner Wires114
Detaching and Refitting the Laser Scanner Unit117
Adjusting the Skew and Vertical Shifting of the Laser Scanner Unit119
Adjusting the Skew of the Laser Scanner Unit119
Adjusting the Vertical Shifting of the Laser Scanner Unit120
Detaching and Refitting the ISU (Reference)121
Adjusting the Position of the ISU (Reference)123
Adjusting the Longitudinal Squareness (Reference)124
Adjusting Magnification of the Scanner in the Main Scanning Direction125
Adjusting Magnification of the Scanner in the Auxiliary Scanning Direction126
Adjusting the Scanner Leading Edge Registration127
Adjusting the Scanner Center Line128
Adjusting the Margins for Scanning an Original on the Contact Glass129
Main Charging Section130
Detaching and Refitting the Charger Assembly130
Replacing the Tungsten Wire (Reference)131
Drum Section133
Detaching and Refitting the Drum133
Developing Section134
Adjusting the Position of the Doctor Blade (Reference)134
Transfer Section135
Detaching and Refitting the Transfer Roller Assembly135
Cleaning Section136
Detaching and Refitting the Cleaning Blade136
Detaching and Refitting the Drum Separation Claw Assemblies137
Detaching and Refitting the Cleaning Lower Seal Assembly137
Fixing Section138
Detaching and Refitting the Fixing Unit138
Detaching and Refitting the Fixing Unit Thermistor139
Detaching and Refitting the Heat Roller Separation Claws139
Detaching and Refitting the Fixing Heater140
Detaching and Refitting the Heat Roller141
Detaching and Refitting the Press Roller143
Replacing the Main PCB144
Upgrading the Firmware on the Main PCB146
Adjustment-Free Variable Resistors (VR)147
Paper Feed Section148
Main Charging Section151
Optical Section153
Original Scanning154
Image Printing155
Developing Section157
Formation of Magnetic Brush158
Toner Density Detection by the Toner Sensor159
Toner Density Control159
Correcting the Toner Sensor Control Voltage160
Correcting Toner Sensor Output Voltage161
Transfer and Separation Section162
Cleaning Section164
Charge Erasing Section165
Fixing Section166
Electrical Parts Layout168
Pcbs168
Switches and Sensors169
Motors170
Other Electrical Components171
Power Source PCB172
Main PCB174
CCD Pcb179
Laser Diode PCB180
Timing Chart No. 3183
Timing Chart No. 4184
Maintenance Parts List185
Periodic Maintenance Procedures186
General Wiring Diagram189

Brand	Kyocera
Model	mita KM-1525
Category	Printer
Language	English

Kyocera mita KM-1525 - Service Manual

Table of Contents

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