2-38 Service Manual
4025-XXX
Attendance Message 204
The Fuser Exit Sensor is actuated at printer power on.
Logic Control on the MCU PWB sensed the Fuser Exit Sensor was on while the printer
was in standby.
Attendance Message 206
There is a paper jam at the Face Up Exit Sensor.
Logic Control on the MCU PWB sensed that during Face-Down-Mode the Face Up Exit
Sensor did not deactuate within the specified time after the Sensor actuated.
Step Actions and Questions Yes No
1 SENSOR INSPECTION
Inspect the Fuser Exit Sensor for paper scraps that may have
actuated the Sensor or may have caused it to stick.
Is the Fuser Exit Sensor free of paper scraps?
Go to step 2 Clear paper
from the
Sensor
2 FUSER EXIT SENSOR TEST
Enter Diagnostic Mode and select Fuser Exit Sensor.
Insert and then remove, a sheet of paper into the sensor.
Does the Operator Panel LCD change between OP and CL
as you insert then remove the paper?
Go to step 3 Replace the
“Face Up
Exit Sensor”
on page 4-77
3 MCU PWB REPLACEMENT
Replace the “Engine Board (MCU PWB)” on page 4-92
Does the error code appear?
Go to step 4 Problem
solved
4 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this Service Check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
• Wiring and connectors linking the FRUs
• I/O PWB - Go to “I/O PWB” on page 4-89.
Step Actions and Questions Yes No
1 PAPER TRAVEL INSPECTION
Remove the Fuser Full Cover.
Observe the position of the sheet of paper.
Did the sheet of paper stop on the Face Up Exit Sensor?
Go to step 3 Go to step 2
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