Oki ES3640MFP Service & Troubleshooting Manual page 107

Tray 1, 2, 3, 4 Communication Errors
Error Codes that Apply
180 to 186
910 Tray 1 Motor Error
911 Tray 2 Motor Error
912 Tray 3 Motor Error
913 Tray 4 Motor Error
924 Tray 2 Abnormal Voltage Detection
925 Tray 3 Abnormal Voltage Detection
926 Tray 4 Abnormal Voltage Detection
Initial Troubleshooting Actions to Take
1. Cycle the Printers Power
2. If the problem persists follow the procedure below.
Parts of the Printer that Apply
1. High Capacity Feeder Control Board
2. Engine Control Board
Troubleshooting Procedure
Steps
Check the Hi Cap connector for
1
Is the connector damaged?
Check all pins on the Hi Cap Harness
2
Disconnect from the Engine Control
Board and Option connector.
Is the harness conductive?
Action Taken
damage.
for continuity.
Yes
Replace the connector.
Replace the Hi Cap
Control Board. If the
error persists,
replace the Engine
Control Board
No
Go to Step 2.
Replace the
Hi Cap Harness.