Ricoh A-C4 - Page 218

20 June 2005 SERVICE CALL CONDITIONS
4-17
Trouble-
shooting
Pattern Error Status Possible Cause
1-7-1
The tray lift motor does not stop within
15s after being turned on.
The shift tray HP sensor does not
activate within 15s after the tray lift
motor turns on.
1-7-2
The shift tray upper limit switch turns on
while the shift tray is being raised.
1-7-3
Tray lift motor
Lift motor sensors 1 & 2 do not send
the clock signals to the finisher board
every 200ms while the tray lift motor is
on.
• 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
1-8-1
Abnormal communication data between
finisher board and shift tray height
sensor.
1-8-2
No communication between finisher
board and shift tray height sensor for a
certain period.
1-8-3
The finisher board detects a connection
error with the connector for the shift tray
height sensor.
1-8-4
Shift tray height
sensor
Adjustment error during shift tray height
sensor adjustment.
• Shift tray height
sensor defective
• Finisher board
defective
1-9-1
Back-up RAM The check sum is abnormal when the
main switch is turned on.
• Finisher board
defective
1-10-1
Communication error between finisher
board and copier mainframe.
1-10-2
Communication
Communication error between finisher
board and booklet unit board.
• Finisher board
defective
• Booklet unit board
defective
• Poor connection of
the interface
harness
1-11-1
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.
1-11-2
Positioning
plate motor
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
1-12-2
Folder roller
motor
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
1-13-1
Shutter guide
motor
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.
• Shutter guide
motor defective
• Shutter guide HP
sensor defective