Oki ES3640MFP Service & Troubleshooting Manual page 133

Belt Life Error
Error Codes that Apply
354
Initial Troubleshooting Actions to Take
1. Replace the Transfer Unit.
2. Cycle the printer's power.
3. If the problem persists follow the procedure below.
Parts of the Printer that Apply
1. Transfer Unit
,
2. Engine Control Board
Troubleshooting Procedure
Steps
Generate a Configuration Page and
1
check the indicated Belt Life counter
under "Supply Life".
Does the counter indicate end of life?
Action Taken Yes
Replace the Transfer
Belt.
No
Replace the Engine
Control Board.