Input/output option hardware errors
3xx error messages (300‑399.99)
User attendance messages
Error code Description Action
321.51 No encoder feedback detected from the tray 2
pick/lift motor.
Go to “250/550-sheet media feeder failure service
check” on page 154.
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.
Open the media tray, and make sure to remove all
obstructions.
If this doesn’t solve the issue, then go to “250/550-
sheet transport motor failure service check” on
page 153
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
324.57 No encoder feedback detected from the tray 2 (HCIT)
lift motor.
Go to “HCIT lift drive motor failure service check”
on page 157.
324.58 Motor stop error—the tray 2 (HCIT) lift motor kept on
running some time after the motor was commanded
to stop.
324.59 The tray 2 (HCIT) lift motor went over the normal
speed
325.60 Hardware Error—tray 2 board ID unknown Go to “250/550-sheet controller board failure
service check” on page 156.
325.61 Hardware Error—tray 2 option type unknown
325.62 Hardware Error—tray 2 product ID unknown)
325.63 Hardware Error—tray 2 sensors are not plugged on
the board
325.64 Hardware Error—tray 2 lift plate failed to reach its
home position
Go to “HCIT lift plate failure service check” on
page 159.
331.51 No encoder feedback detected from the tray 3
pick/lift motor.
Go to “250/550-sheet media feeder failure service
check” on page 154.
331.52 Motor stop error—the tray 3 pick/lift motor kept on
running some time after the motor was commanded
to stop.
331.53 The tray 3 pick/lift motor went over the normal speed
7463
Diagnostic information
149
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