Action Yes No
Step 16
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 17. The problem is solved.
Step 17
Replace the motor (registration). See
“Motor (registration) removal” on
page 370.
Does the problem remain?
Go to step 18. The problem is solved.
Step 18
a Make sure that the registration unit is properly installed.
b Make sure that the unit is clear of obstructions.
c Check the unit for damage, and replace if necessary. See “Registration
unit assembly removal” on page 314.
Does the problem remain?
Go to step 19. The problem is solved.
Step 19
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 20. The problem is solved.
Step 20
a Make sure that the paper feed unit is properly installed.
b Make sure that the unit is clear of obstructions.
c Check the unit for damage, and replace if necessary.
Does the problem remain?
Go to step 21. The problem is solved.
Step 21
Make sure that the blue screws and marked screws in the paper path area
are tightened.
Does the problem remain?
Go to step 22. The problem is solved.
Step 22
Check the engine controller board pins for damage, and replace if
necessary. See
“Engine controller board removal” on page 353.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
7421
Diagnostic information
86