Ricoh MT-C1 Service Manual page 451

15 February 2006
B140/B246 Duplicated Number
754 D Z-Folding unit error 4
2000 ms after the fan motor
switched on, the lock signal did not
release.
754 Z-Fold Unit Fan Motor Error
The motor lock signal failed to
release within 2 sec. after the Z-fold
unit fan motor turned on.
755 B Z-Folding unit error 5
The fold timing sensor does not
operate correctly.
756 B Z-Folding unit error 6
The leading edge sensor does not
operate correctly.
757 B Z-Folding unit error 7
The machine could not write to the
EEPROM two times (one after the
other).
760 D Finisher punch motor error
The punch HP sensor is not activated
within the specified time after the punch
motor turned on. The 1st detection
failure issues a jam error, and the 2nd
failure issues this SC code.
761 B Finisher folder plate motor error
The folder plate moves but is not
detected at the home position within the
specified time. The 1st detection failure
issues a jam error, and the 2nd failure
issues this SC code.
762 B Finisher pressure plate motor error
Pressure plate motor operating but the
plate is not detected at the home
position within the specified time. The
1st detection failure issues a jam error,
and the 2nd failure issues this SC code.
B140/B246 SERIES SERVICE MODE
B140
• Fan motor defective
• Fan motor disconnected
• Fan motor locked because of too much
load
• Z-Fold main control board defective
B246
• Fan motor connected loose, broken,
defective
• Fan motor defective
• Fan blocked by an obstruction
B140
• Paper dust on the sensor
• Sensor disconnected, defective
• Reflector plate dirty, or out of position
• Z-Fold main control board defective
B140
• Paper dust on the sensor
• Sensor disconnected, defective
• Reflector plate dirty, or out of position
• Z-Fold main control board defective
B140
• EEPROM defective, replace Z-Fold main
control board
B246
• Punch HP sensor disconnected,
defective
• Punch motor disconnected,
defective
• Punch motor overload due to
obstruction
B246
• Folder plate HP sensor
disconnected, defective
• Folder plate motor disconnected,
defective
• Folder plate motor overloaded due
to obstruction.
B246
• Pressure plate HP sensor
disconnected, defective
• Pressure plate motor disconnected,
defective
• Pressure plate motor overloaded
due to obstruction
4-63