26 July 2002 SERVICE CALL
4-11
Trouble-
shooting
No.
Definition
Symptom Possible Cause
Finisher stack feed-out motor error (1000-sheet finisher) 725 B
The stack feed-out belt H.P sensor
does not activate within a certain time
after the stack feed-out motor turned
on.
• Stack feed-out HP sensor defective
• Stack feed-out motor defective
• Defective finisher control board
• Defective BICU
• Defective Ex-IOB
• Incorrect installation
Finisher tray lift motor error (1000-sheet finisher) 726 B
The stack height sensor does not
activate within a certain time after the
tray lift motor turned on.
• Tray lift motor defective
• Stack height sensor defective
• Defective finisher control board
• Defective BICU
• Defective Ex-IOB
• Incorrect installation
Finisher stapler motor error (500-sheet finisher) 727 B
Stapling does not finish within a
certain time after the stapler motor
turned on.
• Staple jam
• Stapler overload caused by trying to
staple too many sheets
• Stapler motor defective
• Defective finisher control board
• Defective BICU
• Defective Ex-IOB
• Incorrect installation
Finisher paper stack height error (500-sheet finisher) 728 B
The stack height detection lever does
not return to its home position before
going to detect the stack height.
• Stack height lever solenoid defective
• Stack height sensor defective
• Lever sensor defective
• Main control board defective
• Defective finisher control board
• Defective BICU
• Defective IOB
• Incorrect installation
Finisher stapler motor error (1000-sheet finisher) 730 B
The stapler does not return to its
home position within a certain time
after the stapler motor turned on.
The stapler H.P sensor does not
activate within a certain time after the
stapler motor turned on.
• Stapler motor defective
• Stapler HP sensor defective
• Poor stapler motor connection
• Defective finisher control board
• Defective board
• Defective BICU
• Defective Ex-IOB
• Incorrect installation
To Next Page
Loading...
