Table of Contents
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Troubleshooting
● Code :53-002
● Error message : Mailbox door is open. Close it
● Symptom : Although the mail box door is closed, the error message will be displayed.
● Possible Cause: Mailbox door switch defect, door flag defect.
● Troubleshooting method :
1. Check if the Mailbox door S/W harness is connected properly.
2. Check if the Mailbox cover flag is broken.
3. If the problem persists, replace the finisher main board.
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Table of Contents
Troubleshooting
