• Code: 742
• Description: Finisher stapler movement motor error B246
  The stapler HP sensor is not activated within the specified time after the stapler motor turned on. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Stapler movement motor disconnected, defective
  • Stapler movement motor overloaded due to bstruction
  • Stapler HP sensor disconnected, defective

• Code: 743
• Description: Finisher shift motor errors B140
  For the optional jogger unit for the B706 finisher: During the return operation, the shift jogger motor or shift jogger fence lift motor did not return to the home position within the set number of pulses
• Causes: • HP sensor of shift jogger motor, harness, connector defective, or motor disconnected
  • HP sensor, harness, connector of retraction motor defective, or motor disconnected
  • Shift jogger motor defective
  • Shift jogger fence lift motor defective
  • Finisher main control board defective

• Code: 743
• Description: Booklet stapler motor error 1 B246
  The front stapler unit saddle-stitch motor does not start operation within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Front motor disconnected, defective
  • Front motor overloaded due to obstruction

• Code: 744
• Description: Booklet stapler motor error 2 B246
  The rear stapler unit saddle-stitch motor does not start operation within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Rear motor disconnected, defective
  • Rear motor overloaded due to obstruction

• Code: 750
• Description: Cover interposer bottom plate motor error B140
  • The bottom plate motor turns on to raise the bottom plate but the plate position sensor does not detect the plate within 3 s.
  • The bottom plate motor reverses to lower the bottom plate but the bottom plate HP sensor does not detect the plate within 3 s.
• Causes: • Bottom plate position sensor defective
  • Bottom plate HP sensor defective
  • Bottom plate motor defective
  • Cover sheet feeder main board defective
  • Harnesses disconnected, defective

• Code: 750
• Description: Finisher tray 1 (upper tray lift) motor error B246
  The upper tray paper height sensor does not change its status with the specified time after the tray raises or lowers. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Tray lift motor disconnected, defective • Upper tray paper height sensor disconnected, defective
  • Finisher main board connection to motor loose
  • Finisher main board defective

• Code: 753
• Description: Z-Folding unit error 3 B140
  The HP sensor of the upper stopper motor does not go off after the stopper moved 128.7 mm.
• Causes: • Upper stopper motor defective
  • Upper stopper motor disconnected, connector defective
  • Upper stopper motor HP sensor disconnected, defective
  • Z-Fold main control board defective

• Code: 753
• Description: Return roller motor error B246
  Occurs during the operation of the lower tray pressure motor.
• Causes: • Motor harness disconnected, loose, defective
  • Motor overloaded
  • Home position sensor harness disconnected, loose, defective
  • Home position defective