• Code: 150C
• Description: PG position undetectable error
  When changing the PG, the PG SENSOR could not detect the PG position.
• Remedy: 1. Replace the PG SENSOR. 2. Replace the APG UNIT. 3. Remove any obstacles around the CR UNIT home position. The printer changes the PG with the CR UNIT being at its home position.

• Code: 1519
• Description: Oscillation error
  The control terminal (Vre terminal) of the APG motor driver has shorted out.
• Remedy: 1. Remove the foreign material. 2. If the error still occurs, replace the MAIN BOARD.

• Code: 151A
• Description: Overload error
  Connection failure of the APG motor. • Overcurrent to the APG motor was detected. • APG motor cable is damaged. • Irregular load • APG encoder failure • APG motor failure
• Remedy: Replace the APG UNIT.

• Code: 151B
• Description: Over speed error
  The APG motor was driven at a speed faster than a predetermined one during deceleration. • Irregular load • APG encoder failure • APG motor driver failure
• Remedy: 1. Replace APG UNIT. 2. Replace the MAIN BOARD.

• Code: 151C
• Description: Reversing error
  The number of occurrences of reversing the APG motor has reached a predetermined limit. • The polarity of APG motor cable is opposite. • APG motor failure
• Remedy: Replace APG UNIT.

• Code: 151D
• Description: Driving time-out error
  Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Remedy: Replace the MAIN BOARD.

• Code: 151E
• Description: Velocity deviation error
  The APG motor was driven at a speed abnormally faster than a predetermined one during acceleration or deceleration. • Irregular load • APG encoder failure • APG motor failure • APG motor driver failure
• Remedy: 1. Replace APG UNIT. 2. Replace the MAIN BOARD.

• Code: 151F
• Description: Lock error
  Connection failure of the APG motor. • The APG motor was driven at a speed abnormally slower than a predetermined one during operation. • Irregular load • APG encoder failure • APG motor failure
• Remedy: Replace APG UNIT.