Control Panel Communication Failure
Error Codes that Apply
050 and 187
1. Cycle the printer's power.
2. If the problem persists follow the procedure below.
1. Control Panel
2. Control Panel Interface Cable
3. Engine Control Board
Steps Action Taken Yes No
1
Check the Control Panel connection.
Is the Control Panel Harness
connected to the Engine Control
Board?
Go to Step 2.
Connect the Control
Panel harness,
2
Check all pins on the Control Panel
Harness for continuity.
Disconnect the harness from the
Engine Control Board and Control
Panel connectors.
Is the harness conductive?
Replace the Engine
Control Board
If the error persists,
replace the Control
Panel
Replace the harness.
Initial Troubleshooting Actions to Take
Parts of the Printer that Apply
Troubleshooting Procedure