Action Yes No
Step 5
a Reseat the sensor cable.
b Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 6. The problem is solved.
Step 6
Replace the sensor (tray 3 transport). See
“2 x 500-sheet tray transport
assembly sensors removal” on page 492.
Does the problem remain?
Go to step 7. The problem is solved.
Step 7
Check the tray 4 transport roller for damage, and replace if necessary.
Note: If the page count is over 50K, then clean the rollers.
Does the problem remain?
Go to step 8. The problem is solved.
Step 8
Enter the Diagnostics menu, and then navigate to:
MOTOR TESTS > 2 x 500-Sheet Tray Motor Tests > Tray 4 transport
Does the motor run?
Go to step 12. Go to step 9.
Step 9
a Reseat the motor cable.
b Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 10. The problem is solved.
Step 10
a Check the tray 4 transport belt for proper tension, and adjust if
necessary.
b Check the transport gear and belt for wear or damage, and replace if
necessary. See
“2 x 500-sheet tray 4 transport belts and gears
removal” on page 496.
Does the problem remain?
Go to step 11. The problem is solved.
Step 11
Replace the motor (2 x 500‑sheet tray 4 transport). See
“2 x 500-sheet
tray feed and transport motors removal” on page 486.
Does the problem remain?
Go to step 12. The problem is solved.
7421
Diagnostic information
103