Ricoh B079, Service Manual

Page: 879 / 948

Trouble-
shooting
SERVICE CALL CONDITIONS
SM 4-15 B079/B082
Note: When this SC is displayed, check SP7-902 (SC detail). The first 2 digits
indicate the type of error.
Example: 741 01 00000000000000
Code No. Symptom Possible Cause
Back-up RAM error 09
The check sum is abnormal when
the main switch is turned on.
Finisher board defective
Communication error
740 D
10
Communication error between
finisher board and booklet unit
board.
•
Finisher board defective
•
Booklet unit board defective
•
Poor connection of the interface
harness
1000 sheet finisher error in saddle stitching area
Positioning plate motor error 01
1) After the positioning plate motor
turns on to move the positioning
plate from its home position, the
positioning plate HP sensor does
not deactivate within 1.25s.
2) After the positioning plate motor
turns on to return the positioning
plate to its home position, the
positioning plate HP sensor does
activate within 1s.
•
Positioning plate motor defective
•
Positioning plate HP sensor
defective
Folder roller motor error 02
1) The folder roller motor sensor
doesn’t send the clock pulse to the
booklet unit board within a certain
period after the folder roller motor
turns on.
•
Folder roller motor defective
•
Folder roller motor sensor
defective
Shutter guide motor error
741 D
03
After the shutter guide motor turns
on to move the shutter guide from
its home position, the shutter guide
HP sensor does not deactivate
within 0.4s.
1) After the shutter guide motor turns
on to return the shutter guide to its
home position, the shutter guide
HP sensor does not activate within
1s.
•
Shutter guide motor defective
•
Shutter guide HP sensor
defective
Rev. 09/2003
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