Actions Yes No
Step 1
Check the imaging unit for damage.
Is it free of damage?
Go to step 2. Replace the imaging
unit.
Step 2
Remove any contamination from the imaging unit contacts.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the cables on the HVPS.
Are the above cables properly connected?
Replace the HVPS. See
“HVPS removal” on
page 444.
Reconnect the cables.
Shadow images check
Actions Yes No
Step 1
Does the shadow image appear every two pages?
Go to step 2. Go to step 3.
Step 2
Check the upper redrive for wear or damage.
Is it free of wear or damage?
Go to step 3. Replace the upper
redrive. See
“Upper
redrive removal” on
page 571.
Step 3
Check the transfer roller for surface contamination or excessive wear.
Is it free of contamination and wear?
Go to step 4. Replace the transfer
roller. See
“Transfer
roller removal” on
page 480.
Step 4
Check the following fuser components for wear or damage:
• Gears
• Exit rollers
• Heat belt or hot roller
Are they free of damage?
Go to step 5. Replace the fuser. See
“Fuser removal” on
page 556.
7463
Diagnostic information
66
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