Actions Yes No
Step 1
Check the imaging unit for wear or damage.
Is it free of wear or damage?
Go to step 2. Replace the imaging
unit.
Step 2
Make sure the paper path is free of debris or toner contamination.
Does the problem remain?
Go to step 3. The problem is solved.
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.
Toner rubs off
Leading edge
Trailing edge
ABC
DEF
4514-420, -430
Diagnostic information
44
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