Name: Kyocera KM-2020
Brand: Kyocera
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SERVICE

MANUAL

Published in Dec. ’03

842C9113

Revision 3

KM-1620

KM-2020

Safety Precautions3
Installation Precautions5
Table of Contents8
Specifications12
Parts Names and Their Functions14
- Copier14
- Operation Panel15
Machine Cross Section16
Drive System17
Drum18
Toner18
Installation Environment19
Unpacking and Installation20
- Installation Procedure20
Setting Initial Copy Modes24
Installing the Paper Feeder (Option)25
Installing the DP (Option)27
Installing the Duplex Unit (Option)30
Installing the Drawer Heater (Option)33
Installing the Key Counter (Option)36
Maintenance Mode39
- Executing a Maintenance Item39
- Maintenance Mode Item List40
- Contents of Maintenance Mode Items43
Copier Management83
- Using the Copier Management Mode83
- Setting Department Management Items84
- Copy Default84
Paper Misfeed Detection87
- Paper Misfeed Indication87
- Paper Misfeeds 187
- Paper Misfeed Detection Conditions88
- Paper Misfeeds92
Self-Diagnosis101
- Self-Diagnostic Function101
- Self-Diagnostic Codes101
Image Formation Problems106
- A Black Line Appears Laterally106
- A Black Line Appears Longitudinally106
- A White Line Appears Longitudinally106
- Background Is Visible106
- Black Dots Appear on the Image106
- Image Is too Light106
- No Image Appears (Entirely Black)106
- No Image Appears (Entirely White)106
- One Side of the Copy Image Is Darker than the Other106
- Power Source PCB 2114
- Cooling Fan Motor 1 Does Not Operate115
- Cooling Fan Motor 2 Does Not Operate115
- The Scanner Motor Does Not Operate115
- Main Charging Is Not Performed116
- The Exposure Lamp Does Not Turn off116
- The Fixing Heater Does Not Turn off116
- The Fixing Heater Does Not Turn on (C6000)116
- A Paper Jam in the Paper Feed, Paper Conveying or Fixing Section Is Indicated When the Power Switch Is Turned on117
- Others117
- The Message Requesting Covers to be Closed Is Displayed When the Front Cover and Left Cover Are Closed117
- The Message Requesting Paper to be Loaded Is Shown When Paper Is Present in the Drawer117
- The Size of Paper in the Drawer Is Not Displayed Correctly117
Electrical Problems114
Mechanical Problems118
- No Primary Paper Feed118
- No Secondary Paper Feed118
- Skewed Paper Feed118
- The Scanner Does Not Travel118
- Multiple Sheets of Paper Are Fed at One Time118
- Paper Jams118
- Toner Drops on the Paper Conveying Path118
- Abnormal Noise Is Heard118
Precautions for Assembly and Disassembly119
- Precautions119
- Running a Maintenance Item120
Paper Feed Section121
- Detaching and Refitting the Separation Pulley121
- Detaching and Refitting the Forwarding Pulley and Paper Feed Pulley123
- Detaching and Refitting the Paper Conveying Unit125
- Detaching and Refitting the Bypass Paper Feed Pulley and Bypass Separation Pad127
- Detaching and Refitting the Registration Left Roller129
- Detaching and Refitting the Registration Cleaner129
- Adjustment after Roller and Clutch Replacement130
Optical Section135
- Detaching and Refitting the Exposure Lamp135
- Detaching and Refitting the Scanner Wires136
- Adjusting the Margins for Scanning an Original on the Contact Glass150
Drum Section151
- Detaching and Refitting the Drum Unit151
- Detaching and Refitting the Drum Separation Claws152
- Detaching and Refitting the Main Charger Unit153
Developing Section154
- Detaching and Refitting the Developing Unit154
Transfer Section155
- Detaching and Refitting the Transfer Roller155
Fixing Section156
- Detaching and Refitting the Fixing Unit156
- Detaching and Refitting the Press Roller157
- Detaching and Refitting the Fixing Heater M and S158
- Detaching and Refitting the Heat Roller Separation Claws159
- Detaching and Refitting the Heat Roller160
- Detaching and Refitting the Fixing Thermostat161
- Detaching and Refitting the Fixing Thermistor161
Upgrading the Firmware on the Main PCB162
Adjustment-Free Variable Resisters (VR)163
Remarks on Engine PCB or Main PCB Replacement163
Paper Feed Section164
Optical Section167
- Original Scanning168
- Image Printing169
Drum Section171
Developing Section173
- Formation of Magnetic Brush174
- Single Component Developing System175
Transfer and Separation Sections176
Fixing Section178
- Fixing Temperature System179
- Fixing Temperature Control Based on Ambient Temperature179
Exit and Switchback Sections180
Duplex Section181
- Paper Conveying Operation in Duplex Copying182
Electrical Parts Layout183
- Pcbs183
- Switches and Sensors184
- Motors185
- Other Electrical Components186
Power Source PCB187
Main PCB190
Engine PCB194
Operation Unit PCB200
CCD Pcb203
Maintenance Parts List212
Periodic Maintenance Procedures213
Optional Devices Supplied Parts List215
General Wiring Diagram216

Brand	Kyocera
Model	KM-2020
Category	All in One Printer
Language	English

Kyocera KM-2020 Service Manual

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