Error code Description Action
28x.50 Left tamper home position jam (staple finisher)
The left tamper home position is not detected by
the sensor (left tamper HP).
Go to
“Sensor (mailbox empty) lingering jam
service check” on page 142.
28x.51 Right tamper home position jam (staple finisher)
The left tamper home position is not detected by
the sensor (right tamper HP).
28x.52 Paddle control motor timer error (staple finisher)
A software failure has occurred with the output
option.
Go to
“Transport motor encoder not detected
(staple finisher) service check” on page 154.
28x.53 Eject motor encoder not detected (staple finisher)
The eject motor encoder is not detected upon
startup.
28x.54 Eject motor encoder not detected (staple finisher)
The eject motor encoder detection is lost during
normal operation.
28x.55 Eject motor overspeed failure (staple finisher)
The eject motor rotate at the specified speed.
28x.56 Eject motor underspeed failure (staple finisher)
The eject motor rotate at the specified speed.
28x.57 Sensor (stapler pass through) static jam (staple
finisher)
Media remains on the sensor (stapler pass
through) during the warmup sequence.
Go to
“Sensor (stapler pass through) lingering
jam service check” on page 153.
28x.58 Sensor (stapler pass through) late jam (staple
finisher)
The media is late reaching the sensor (stapler pass
through) within the specified time.
Go to
“Sensor (output pass through) late jam
service check” on page 157.
28x.59 Staple ready home position jam (staple finisher)
The sensor (self priming) within the stapler
assembly does not detect a ready staple in the
specified
time after the staple job was sent.
Go to
“Sensor (self priming) late failure (staple
finisher) service check” on page 154.
4062
Diagnostic information
150
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