Action Yes No
Step 7
a Reseat the cable J4 on the controller board, then reseat the same cable
on the tamper motor end.
b Swap the left and right tamper motors and take note of the error code.
Does the same error occur?
Go to step 8. If a 453.75 or 453.76
error occurs, then
replace the right
tamper motor. See
“Tamper motor (right)
removal” on page
749.
Step 8
Open the left cover, reseat all connectors on the controller board and then
POR the machine.
Does the error remain?
Replace the controller
board. See
“Stapler/
offset stacker
controller board
removal” on page
756.
If the error persists,
then replace the staple
finisher option. See
“Staple finisher/offset
stacker option
removal” on page
723.
The problem is solved.
Finisher right tamper jam service check
Action Yes No
Step 1
a POR the printer.
b Reseat the installed output option on the printer.
c Clear obstructions along the paper path.
d Make sure that the sensors (pass through) are free from obstructions.
e Close the rear door properly.
Does the error remain?
Go to step 2. The problem is solved.
Step 2
Check the auto connector end of the printer below the staple finisher.
Is it free of damage?
Go to step 3. Replace the upper
interface cable of the
printer.
Step 3
Check the lower interface cable. If damaged, then replace the lower
interface cable. Go to
“Stapler/offset stacker lower interface cable
removal” on page 754.
Remove the left cover. Reseat the cable J15 on the controller board, then
POR the machine.
Does the error remain?
Go to step 4. The problem is solved.
7463
Diagnostic information
182