Actions Yes No
Step 1
Measure the distance between defects. Is the distance between defects
equal to any of the following?
• 3.82 in. (97 mm)
• 1.85 in. (47 mm)
• 1.5 in. (38 mm)
Replace the imaging
unit.
Go to step 2.
Step 2
Is the distance between defects equal to 3.15 in. (80 mm)?
Replace the fuser. See
“Fuser removal” on
page 244.
Contact the next level
of support.
Shadow images appear on prints
ABCD
ABCD
ABCD
ABCD
Leading edge
Trailing edge
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 redrive assembly for wear or damage.
Is it free of wear or damage?
Go to step 3. Replace the redrive
assembly. See “Redrive
assembly removal” on
page 243.
Step 3
Check the transfer roll for surface contamination or excessive wear.
Is it free of contamination and wear?
Go to step 4. Replace the transfer
roll. See “Transfer roll
removal” on page
193.
Step 4
Check the following fuser components for wear or damage:
• Gears
• Exit rollers
• Belt fuser
Are they free of damage?
Go to step 5. Replace the fuser. See
“Fuser removal” on
page 244.
4514-630, -635, -636
Diagnostic information
48
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