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