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4411-XXX
FRU
3
Midframe
Assembly
4
End-of-Forms
Flag and Spring
Power service check
FRU
1
External Power
Supply
2
• Printhead
Cable
• Paper Feed
Motor
• Carrier
Transport Motor
• Control Panel
2-14
Service Manual
Action
Check the following for wear:
• Small feed rollers
• Large feed roller
• Exit roller
• Star rollers
If any of the rollers are worn and cause a paper
feed problem, replace the print engine. Go to the
"Print engine removal" on page
Check for binds or damage. If defective, replace
the print engine. Go to the
removal" on page
Action
Plug the external power supply into an electrical
outlet. Check for 30 V dc. If voltage is incorrect,
replace the power supply.
Unplug the All-In-One. Check all connections on
the system board and plug the All-In-One back in.
Look for a symptom change.
If the printhead cables are defective, replace the
carrier assembly. Go to the
removal" on page
Check for broken circuits or shorts in the paper
feed and carrier transport motors. If either motor is
defective, replace the print engine. Go to the
"Print engine removal" on page
If the control panel LCD, buttons or lights fail,
check cable connection J11 on the system board.
Then run the
"Power-On Self Test (POST)
sequence" on page
replace the scanner assembly. Go to the
"Scanner module assembly removal" on
page
4-3.
If the problem continues, replace the system
board. Go to the
page
4-12.
"Print engine
4-7.
"Carrier assembly
4-10.
2-1. If the problem remains,
"System board removal" on
4-7.
4-7.
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