Oki ES3640MFP Service & Troubleshooting Manual page 113

Fuse Cut Error (Fuser)
Error Codes that Apply
155
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. Fuser
2. Engine Control Board
Troubleshooting Procedure
Steps
1
2 Replace the Fuser. Cycle the power.
Check all pins of the harness between
3
the Fuser and Engine Control Board.
Action Taken
Test the Fuser fuse.
Is the Fuse Cut?
Does the error persist?
Yes
Replace the Engine
Control Board
Go to Step 3.
Replace Engine
Control Board
No
Go to Step 2.
Complete.
Replace the Harness.