Diagnostic Information 2-33
4025-XXX
Attendance Messages
Attendance Message 200
The Registration Sensor is actuated at printer power on.
Logic Control on the MCU PWB sensed the Registration Sensor was on while the printer
was in standby.
Step Actions and Questions Yes No
1 SENSOR INSPECTION
Inspect the Registration Sensor for contamination or paper
scraps that may have actuated the Sensor.
Is the Registration Sensor clean and free of paper scraps?
Go to step 2 Clean or clear
paper from
the Sensor
2 REGISTRATION SENSOR TEST
Enter Diagnostic Mode and select Registration Sensor.
Open the Left Upper Cover.
Insert and then remove, a sheet of paper into the Registration
Sensor.
Does the Operator Panel LCD change between OP and CL
as you insert then remove the paper?
Go to step 3 Replace the
“Registration
Sensor” on
page 4-56,
then repeat
this step.
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.
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