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Action
Step 4
Replace the current controller board assembly with the original controller
board assembly. See
"Controller board removal" on page
Does the problem continue?
Step 5
Replace the original control panel assembly with a new and not previously
installed control panel assembly.
Does the error continue?
Step 6
Replace the original control panel assembly with a new and not previously
installed control panel door assembly.
Does the error continue?
Input/output option hardware errors
3xx error messages (300‑399.99)
User attendance messages
Error code
Description
321.51
No encoder feedback detected from the tray 2
pick/lift motor.
321.52
Motor stop error—the tray 2 pick/lift motor kept on
running some time after the motor was commanded
to stop.
321.53
The tray 2 pick/lift motor went over the normal speed
322.54
No encoder feedback detected from the tray 2
transport motor.
322.55
Motor stop error—the tray 2 transport motor kept on
running some time after the motor was commanded
to stop.
322.56
The tray 2 transport motor went over the normal
speed
Yes
Go to step 6.
349.
Contact the next level
of support.
Contact the next level
of support.
Action
Go to
"250/550-sheet media feeder failure service
check" on page
Open the media tray, and make sure to remove all
obstructions.
If this doesn't solve the issue, then go to
sheet transport motor failure service check" on
page 128
Diagnostic information
123
No
The problem is solved.
The problem is solved.
The problem is solved.
130.
"250/550-
4063
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