Kyocera FS-1020D

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2FM

1-6-14

7. Remove five screws.

8. Remove the bottom cover.

9. Remove the three connectors from the bias board.

10. Remove the bias board.

Figure 1-6-15 Removing the bias board

Connectors

Connector

Bottom cover

Bias board

Screws

Main Page

Service Manual1
Safety Precautions3
Installation Precautions5
Specifications 16
Table of Contents9
Specifications13
Name of Parts15
- Overall15
- Operator Panel16
Machine Cross Section17
Process Unit (Drum)19
Installation Environment19
Unpacking and Installation21
- Installation Procedure21
Installing the Expanding Memory (Option)28
Installing the Memory Card (Option)29
Installing the Network Interface Card (Option)30
Maintenance31
- Status Page31
Paper Misfeed Detection35
- Paper Misfeed Indication35
Self-Diagnosis36
- Self-Diagnostic Function36
- Self-Diagnostic Indication36
Image Formation Problems46
- No Image Appears (Entirely White)46
- No Image Appears (Entirely Black)46
- Image Is too Light46
- Background Is Visible46
- A White Line Appears Longitudinally46
- A Black Line Appears Longitudinally46
- A Black Line Appears Laterally46
- One Side of the Copy Image Is Darker than the Other46
- Black Dots Appear on the Image46
Electrical Problems52
- The Machine Does Not Operate When the Power Switch Is Turned on52
- The Main Motor Does Not Operate52
- Cooling Fan Does Not Operate52
- The Feed Clutch Does Not Operate52
- The MP Feed Clutch Does Not Operate52
- The Registration Clutch Does Not Operate53
- The Switchback Solenoid Does Not Operate53
- The Eraser Lamp Does Not Turn on53
- The Heater Lamp Does Not Turn on53
- The Heater Lamp Does Not Turn off53
- Main Charging Is Not Performed53
  - When the Power Switch Is Turned on54
  - Others54
- Mechanical Problems55
  - No Primary Paper Feed55
  - No Secondary Paper Feed55
  - Skewed Paper Feed55
  - Multiple Sheets of Paper Are Fed at One Time55
  - Paper Jams55
  - Abnormal Noise Is Heard55
- Precautions for Assembly and Disassembly57
  - Precautions57
- Removing the Process Unit58
- Removing the Principal Outer Covers59
  - Removing the Front Top Cover/Face-Down Output Tray59
  - Removing the Right Cover60
  - Removing the Left Cover60
- Removing the Feed Roller61
- Removing the MP Feed Roller62
- Removing the Transfer Roller64
- Removing the Principal Circuit Boards65
  - Removing the Engine Board65
  - Removing the Main Board66
  - Removing the Power Supply Board and High Voltage Board68
  - Removing the Bias Board69
- Removing the Main Motor and Drive Unit71
- Removing and Splitting the Fuser Unit75
  - Removing the Separation Craws77
  - Removing the Heater Lamp78
  - Removing the Heat Roller79
  - Removing the Fuser Thermistor81
  - Removing the Thermal Cutout82
  - Removing the Press Roller83
Removing the Laser Scanner Unit and the Eraser Lamp84
Removing the Main Charger Unit87
- Upgrading the Firmware on the Main Board89
- Paper Feeding System93
  - Paper Feed Section93
  - Switchback and Refeed Section96
- Electrophotographic System98
Electrical Parts Layout111
Main Board113
Engine Board114
- Eraser Lamp Control Circuit115
- Heater Lamp Control Circuit116
- Polygon Motor Control Circuit117
Power Supply Board120
Bias Board122
High Voltage Board123
- Interlock Switch124
Timing Chart No. 1125
Timing Chart No. 2126
Wiring Diagram127
Repetitive Defects Gauge128

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