Actions Yes No
Step 3
Check the transfer roll for contamination or excessive wear.
Is it free of contamination or wear?
Go to step 4. Replace the transfer
roll. See “Transfer roll
removal” on page
170.
Step 4
Remove the fuser and check for damage or debris on the rollers and belts.
Is it free of damage and debris?
Go to step 5. Replace the fuser. See
“Fuser removal” on
page 211.
Step 5
Reseat the cables JVIDEO1 and JGLV on the controller board.
Does the problem remain?
Replace the LSU. See
“Laser scanning unit
(LSU) removal” on
page 213.
The problem is solved.
Paper jams
Avoiding jams
Load paper properly
•
Make sure paper lies flat in the tray.
Correct loading of paper Incorrect loading of paper
• Do not remove a tray while the printer is printing.
• Do not load a tray while the printer is printing. Load it before printing, or wait for a prompt to load it.
• Do not load too much paper. Make sure the stack height is below the maximum paper fill indicator.
4514-420, -430
Diagnostic information
46
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