Filter
Top Products
Diagnostic Information 2-51
4069-XXX
Input Sensor Service Check
Service Tip: Run the Base Sensor Test. Check the input sensor for
proper operation. The display changes from open to closed as the
sensor flag is manually moved in and out of the sensor.
Service Tip: Run a Diagnostic Print Test in the continuous mode with
the controller board removed. A defective input sensor or circuit
causes the first copy to exit only partially through the fuser assembly.
Input Tray(s) Option Service Check
250 Sheet and 500 Sheet Trays
Service Tip: Try all the other input paper sources to make sure they
are properly feeding paper.
For 990 Error Code- Service Tray X, X= displays the number of the
tray that has a problem or needs service.
FRU Action
1 Input Sensor Flag Check the input sensor flag for
damage and proper operation. If a
problem is found, repair as
necessary.
2 Engine Board Check for approximately +5 V dc at
J10-10 on the engine board. If
incorrect, replace the engine board.
3 Input Sensor Cable Check the continuity of the input
sensor cable section of the front
wiring harness. If incorrect, replace
the harness. If correct, replace the
input sensor assembly.