Ricoh B089 - Page 417

SERVICE CALL CONDITIONS
SM 7-9 B089/B093
Trouble-
shooting
Code No. Symptom Possible Cause
Finisher jogger motor error (1000-sheet
finisher)
722 B
The finisher jogger H.P sensor remains
de-activated for a certain time when
returning to home position.
The finisher jogger H.P sensor remains
activated for a certain time when
moving away from home position.
• Jogger H.P sensor defective
• Jogger motor defective
Finisher staple hammer motor error
(1000-sheet finisher)
724 B
Stapling does not finish within 600 ms
after the staple hammer motor turned
on.
• Staple jam
• Stapler overload caused by trying to
staple too many sheets
• Staple hammer motor defective
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 H.P sensor defective
• Stack feed-out motor defective
Finisher lift motor error (1000-sheet
finisher)
726 B
The stack height sensor does not
activate within a certain time after the
shift tray lift motor turned on.
• Shift tray lift motor defective
• Stack height sensor defective
Finisher staple hammer motor error
(500-sheet finisher)
727 B
Stapling does not finish within a certain
time after staple hammer motor turned
on.
• Staple jam
• Stapler overload caused by trying to
staple too many sheets
• Staple hammer motor defective
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
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 H.P sensor defective
• Poor stapler motor connection
Output tray motor error (500-sheet
finisher)
Exit guide plate motor error (1000-sheet
finisher)
731 B
The tray upper limit sensor does not
activate within a certain time after the
shift motor turned on. (500-sheet
finisher)
The exit guide plate open sensor or exit
guide plate HP sensor does not activate
within a certain time after the exit guide
plate motor turned on. (1000-sheet
finisher)
500-sheet finisher
• Output tray motor defective
• Tray upper limit sensor defective
1000-sheet finisher
• Exit guide plate motor defective
• Exit guide plate HP sensor defective
• Exit guide plate open sensor
defective