Oki ES3640MFP Service & Troubleshooting Manual page 128

Color Up/Down Error
Error Codes that Apply
142
Initial Troubleshooting Actions to Take
1. Cycle the printer's power.
2. If the problem persists follow the procedure below.
Parts of the Printer that Apply
1. Up/Down Motor
2. Front Up/Down Mechanism
3. Rear Up/Down Mechanism
4. Engine Control Board
Troubleshooting Procedure
Steps
Test the Up/Down Sensor.
1
Run the Scan Switch test
the Up/Down Sensor. Does the sensor
change state?
Test the Up/Down Motor.
2
1. Remove the Image Drum Units.
2. Run the motor Clutch test
the Up/Down Motor.
Does the motor rotate? Does the
Up/Down mechanism move smoothly?
Check the UP/Down Motor and
3
Up/Down Mechanism for Obstructions
or broken gears that would prevent
movement. Is there damage evident?
Action Taken
to test
to test
Yes
Go to Step 2.
Replace the Engine
Control Board
Repair/Replace the
damaged parts.
No
Replace the Engine
Control Board
Go to Step 3
Replace the Engine
Control Board