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4098-001
FRU
6
Large and Small
Feed Rollers
7
End-of-Forms
Flag / Spring
System board
Paper Path Service Check
Examine the printer for the following before you begin this service
check:
•
Check the entire paper path for obstructions.
•
Be sure the paper guide is not worn/ broken and positioned
against the paper without binding.
•
Be sure the correct type of paper is being used.
•
Be sure the printer is installed on a flat surface.
Go to
the"Paper Feed Service Check" on page 2-11
Power Service Check
FRU
1
External Power
Supply
2
Connector Board
All Cables
Operator Panel
Encoder Card
System Board
Action
Check the rollers for wear and binds
Check the end-of-forms flag for binds.
Perform the
"End of Forms (EOF) Test" on
page
3-3. If the test fails, replace the system
board.
Action
Plug the external power supply into an outlet.
Check for +30 V dc at the connector. If voltage is
incorrect, replace the external power supply.
Isolate for a shorted component by disconnecting
the component from the printer and plugging in the
power supply to see if there is a symptom change.
Check the Test Pad readings on the system board.
If the +30 V dc is missing, check to make sure the
system board cable is fully seated in the connector
board and system board. Check the system board
cable for continuity.
If the +5 V or +3.8 V and +30 V is present, replace
the system.
Diagnostic Information
2-13
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