SERVICE CALL CONDITIONS
B079/B082 4-20 SM
4) Lift motor sensors 1 & 2 do not send the clock signals to the finisher board
every 200ms while the tray lift motor is on.
- Possible causes -
• Tray lift motor defective
• Lift motor sensor 1 defective
• Lift motor sensor 2 defective
• Shift tray HP sensor defective
• Shift tray upper limit switch defective
08: Shift tray height sensor error
1) Abnormal communication data between finisher board and shift tray height
sensor.
2) No communication between finisher board and shift tray height sensor for a
certain period.
3) The finisher board detects a connection error with the connector for the shift
tray height sensor.
4) Adjustment error during shift tray height sensor adjustment.
- Possible causes -
• Shift tray height sensor defective
• Finisher board defective
09: Back-up RAM error
The check sum is abnormal when the main switch is turned on.
- Possible causes -
• Finisher board defective
0A: Communication error
Communication error between finisher board and booklet unit board.
- Possible causes -
• Finisher board defective
• Booklet unit board defective
• Poor connection of the interface harness
SC741: 1,000-sheet finisher error in saddle stitching area
- Definition – [D]
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