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4069-XXX
Duplex Unit Sub Error Codes
Status byte 4 contains the most valuable information to help isolate a
failing part or assembly in the duplex option and is the only byte
contained in the following table.
Status
Explanation
Byte 4
00
No duplex error. No problem was reported to the engine by the
duplex system card.
01
The leading edge of the sheet of paper never arrived at the input
sensor.
02
The duplex option system board never received media notification
from the printer.
03
The trailing edge of the sheet of paper never cleared the input
sensor.
04
The leading edge of the sheet of paper never arrived at the exit
sensor.
Note: This error is the most common due to the long length of the
paper path between the input sensor and the exit sensor.
05
The duplex logic thinks a sheet of paper is feeding to the duplex
unit due to a sensor malfunction in the paper path when in fact the
printer has not sent a command to send a sheet of paper to the
duplex unit.
06
The exit sensor detected a sheet of paper too early.
07
The sheet of paper's trailing edge did not clear the exit sensor in
the desired length of time.
08
The feed motor experienced a complete motor stall.
0E
The D.C. motor is under speed. The motor never reached the
correct operating speed.
13
There is paper left in the duplex option. Paper was sensed during
the homing operation during POST.
15
There is paper left in the duplex option. Paper was sensed during
the DC motor diagnostic test during POST.
18
The D.C. motor experienced an acceleration error.
3D
There is paper left in the duplex option. Paper was sensed during
IR clear during POST.
Diagnostic Information
2-11
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