Action Yes No
Step 12
a Reseat the registration motor cable.
b Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 13. The problem is solved.
Step 13
a Check the registration belt for proper tension, and adjust if necessary.
b Check the registration gear and belt for wear or damage, and replace
if necessary. See
“Registration unit belt removal” on page 319 and
“Registration unit gears removal” on page 320.
Does the problem remain?
Go to step 14. The problem is solved.
Step 14
Replace the motor (registration). See
“Motor (registration) removal” on
page 370.
Does the problem remain?
Go to step 15. The problem is solved.
Step 15
a Check the feed belts for proper tension, and adjust if necessary.
b Check the feed gears and belts for wear or damage, and replace if
necessary.
Does the problem remain?
Go to step 16. The problem is solved.
Step 16
Is tray 1 the paper source?
Go to step 18. Go to step 17.
Step 17
a Check the tray 2 transport drive belt for proper tension, and adjust if
necessary.
b Check the tray 2 transport drive gear and belt for wear or damage, and
replace if necessary.
Does the problem remain?
Go to step 18. The problem is solved.
Step 18
a Make sure that the paper feed drive assembly is properly installed.
b Make sure that the assembly is clear of obstructions.
c Check the assembly for damage, and replace if necessary. See “Feed
drive assembly removal” on page 375.
Does the problem remain?
Go to step 19. The problem is solved.
7421
Diagnostic information
67
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