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ERROR CODE and TROUBLESHOOTING
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[EF21] Hole Punch Unit paper leading edge skew detection abnormality
Replace parts Remarks
Stacker paper detection sensor (S30)
Saddle controller board
Classification Error item
Finisher jam (Saddle section)
Check item Measures
Finisher • Is there any paper remaining on the paper transport path?
Is it staying at the position shown below?
• Figure out the cause of the paper stopping (e.g. folding)
and correct it. Then remove the paper.
Skew sensor (S7-1/S7-2) • Sensor check
• Connector check
• Harness check
Punch controller board • Connector check (CN19)
• Board check
Replace parts Remarks
Skew sensor (S7-1/S7-2)
Punch controller board
Skew sensor
(S7-1, S7-2)
Skew sensor
(S7-1, S7-2)
Paper position
sensor (S6-1, S6-2)
Paper Paper
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