Error code Description Action
459.91 Media fed did not leave the sensor (HPU media align)
on time.
Go to
“HPU communication error jam service
check” on page 212.
459.92 Media fed did not leave the sensor (HPU leading edge)
on time.
459.94 Media remains detected by the sensor (HPU leading
edge).
459.93 Media fed did not leave the sensor (HPU trailing edge)
on time.
Go to
“Sensor (HPU trailing edge) jam service
check” on page 214.
Sensor (finisher pass through) 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. See
“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.
Step 4
a Open the rear door and check the sensor (pass through):
• Check the sensor flag for damage. If damaged, then replace the
sensor. See
“Sensor (stapler/stacker pass through) removal” on
page 770.
• Make sure the sensor is aligned and properly seated.
b Do a sensor test. Enter Diagnostics Menu and navigate to :
FINISHER TESTS > Finisher Sensor Test > Pass and Media
Does the display on the operator panel change every time the sensing
area of the sensor tested is interrupted or blocked?
Go to step 5. Replace the sensor
(pass through). See
“Sensor (stapler/
stacker pass through)
removal” on page
770.
7463
Diagnostic information
177
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