Epson Stylus Pro 4900 list error codes with quick guides

Epson Stylus Pro 4900 list error codes with quick guides

– Compatible Printer model: Epson Stylus Pro 4900
– Epson Stylus Pro 4900 Error Codes with quick guides:

• Code: 1101
• Description: CR life error
• Causes: The maintenance counter for the Ink Supply Tube exceeded the threshold value. (CR scan pass counter has reached the specified value (six million passes)).
• Troubleshooting Guides: Replace the following parts and reset the counter of the CR Motor. • Ink Tubes • CR Motor • Head FFC • Oil pad

• Code: 1125
• Description: CR HP detection error
• Causes: The CR Unit cannot track the Home position to set the CR origin. • False origin detection due to paper jam or the like • Misreading of CR Scale • CR Lock is damaged.
• Troubleshooting Guides: 1. Re-install the CR Encoder. 2. Clean the CR Scale with ethanol. 3. Replace the CR Scale. 4. Replace the IS Unit.

• Code: 1138
• Description: CR Motor over current error
• Causes: 1. Connection failure of the CR Motor or the CR Encoder. 2. Detects accumulatively more than the specified number of times that the electric current which flows when driving the motor is irregularly large. • Irregular load • CR Encoder failure • CR Motor failure
• Troubleshooting Guides: 1. Replace the CR Encoder. 2. Replace the CR Motor. 3. If the printer does not recover from the error, it may be caused by irregular load of the CR Mechanism. Replace the Printer Mechanism.

• Code: 113A
• Description: CR Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • CR Encoder cable is damaged. • CR Motor cable is damaged. • Irregular load • CR Encoder failure • CR Motor failure
• Troubleshooting Guides: 1. Re-install the CR Unit. 2. Replace the CR Encoder. 3. Replace the CR Motor.

• Code: 113B
• Description: CR Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • CR Encoder failure • SUB Board is damaged. • CR Motor driver failure
• Troubleshooting Guides: 1. Replace the CR Encoder. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 113C
• Description: CR Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of CR Encoder cable is opposite. • The polarity of CR Motor cable is opposite. • Slipping of the teeth of CR Timing Belt • CR Encoder failure
• Troubleshooting Guides: 1. Adjust the tension of the CR Timing Belt. 2. Replace the CR Encoder.

• Code: 113D
• Description: CR Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 113E
• Description: CR Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • CR Encoder failure • CR Motor failure • SUB Board is damaged. • CR Motor driver failure
• Troubleshooting Guides: 1. Replace the CR Encoder. 2. Replace the CR Motor. 3. Replace the SUB-B Board. 4. Replace the Main Board.

• Code: 113F
• Description: CR Motor lock error
• Causes: Detects that it is being driven at an irregularly slower speed than the specified value. • CR Encoder cable is damaged. • CR Motor cable is damaged. • Irregular load • CR Encoder failure • CR Motor failure
• Troubleshooting Guides: 1. Replace the CR Encoder. 2. Replace the CR Motor.

• Code: 122A
• Description: PF Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • PF Encoder cable is damaged. • PF Motor cable is damaged. • Irregular load • PF Encoder failure • PF Motor failureor failure
• Troubleshooting Guides: 1. Replace the PF Encoder. 2. Replace the PF Motor. 3. If the printer does not recover from the error, it may be caused by irregular load of the PF Mechanism. Replace the Printer Mechanism.

• Code: 122B
• Description: PF Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • PF irregular load • PF Encoder failure • SUB Board is damaged. • PF Motor driver failure
• Troubleshooting Guides: 1. Replace the PF Encoder. 2. Replace the SUB-C Board. 3. Replace the Main Board.

• Code: 122C
• Description: PF Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of PF Encoder cable is opposite. • The polarity of PF Motor cable is opposite. • Slipping of the teeth of PF Timing Belt • PF Encoder failure
• Troubleshooting Guides: 1. Adjust the tension of the PF Timing Belt. 2. Replace the PF Encoder.

• Code: 122D
• Description: PF Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 122E
• Description: PF Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • PF Encoder failure • PF Motor failure • SUB Board is damaged. • PF Motor driver failure
• Troubleshooting Guides: 1. Replace the PF Encoder. 2. Replace the PF Motor. 3. Replace the SUB-C Board. 4. Replace the Main Board.

• Code: 122F
• Description: PF Motor lock error
• Causes: 1. The PF Motor or the PF Encoder is not connected correctly. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • PF Encoder failure • PF Motor failure
• Troubleshooting Guides: 1. Replace the PF Encoder. 2. Replace the PF Motor.

• Code: 131B
• Description: Head driver (transmission gate) overheat error
• Causes: .The temperature of the Head driver rises, and reaches the specified level.
• Troubleshooting Guides: 1. Replace the Head FFC. 2. Replace the Printhead.

• Code: 1412
• Description: IS Motor life error
• Causes: The number of pump operation counter of the IS Unit reached the specified upper limit.
• Troubleshooting Guides: Replace the IS Unit.

• Code: 141A
• Description: IS Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • IS Motor Assy cable is damaged. • Irregular load • IS Motor Assy encoder failure • IS Motor failure
• Troubleshooting Guides: Replace the IS Unit.

• Code: 141B
• Description: IS Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • IS Motor Assy encoder failure • SUB Board is damaged. • IS Motor driver failure
• Troubleshooting Guides: 1. Replace the IS Unit. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 141C
• Description: IS Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of IS Motor Assy cable is opposite. • IS Motor Assy encoder failure
• Troubleshooting Guides: Replace the IS Unit.

• Code: 141D
• Description: IS Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 141E
• Description: IS Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • IS Motor Assy encoder failure • IS Motor failure • SUB Board is damaged. • IS Motor driver failure
• Troubleshooting Guides: 1. Replace the IS Unit. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 141F
• Description: IS Motor lock error
• Causes: 1. Connection failure of the IS Motor Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • IS Motor Assy encoder failure • IS Motor failure
• Troubleshooting Guides: Replace the IS Unit.

• Code: 1431
• Description: Ink Selector life error
• Causes: The number of operation counter of the Ink Selector has reached the specified life. (10,000 times)
• Troubleshooting Guides: Replace the Ink Selector Assy.

• Code: 1432
• Description: Cartridge Holder life error
• Causes: Operations of the diaphragm in the Cartridge Holder exceeded the specified value.
• Troubleshooting Guides: Replace the Cartridge Holder.

• Code: 1433
• Description: IS Unit position sensor error
• Causes: Positions of the ink system components do not match with the sensor condition. • Connection failure of the sensor • Sensor failure • IS Unit failure
• Troubleshooting Guides: 1. Replace the Wiper and Cap Sensor. 2. Replace the IS Unit HP Sensor. 3. Replace the IS Unit.

• Code: 1494
• Description: Ink Selector error
• Causes: Ink select operation failed. • Ink Selector’s load is abnormal. • Ink Selector Sensor failure • Ink Selector Motor failure
• Troubleshooting Guides: Replace the Ink Selector Assy.

• Code: 1496
• Description: Ink Selector Sensor error detection
• Causes: Ink select operation failed. • Ink Selector Sensor failure
• Troubleshooting Guides: Replace the Ink Selector Assy.

• Code: 1497
• Description: Ink Selector Switching time-out error
• Causes: 1. The Ink Selector Motor or the Ink Selector Sensor is not connected correctly. 2. Connection between the SUB Board and the Main Board has an abnormality. 3. Ink selection is not completed after the specified time has passed. • Ink Selector Motor failure • Ink Selector Sensor failure
• Troubleshooting Guides: Replace the Ink Selector Assy.

• Code: 149D
• Description: Ink Selector driving time-out error
• Causes: Detects that the driving period is irregularly long. • Ink Selector irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 150C
• Description: PG origin detection error
• Causes: 1. Connection failure of the APG Sensor. 2. When PG is being adjusted, the APG Sensor cannot detect its origin. • APG Sensor failure • APG Motor failure
• Troubleshooting Guides: 1. Replace the APG Sensor. 2. Replace the APG Motor Assy.

• Code: 151A
• Description: APG Motor overload error
• Causes: 1. Connection failure of the APG Motor. 2. The electric current flowing when driving the motor is irregularly large. • APG Motor Assy cable is damaged. • Irregular load • APG Motor Assy encoder failure • APG Motor failure
• Troubleshooting Guides: Replace the APG Motor Assy.

• Code: 151B
• Description: APG Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • APG Motor Assy encoder failure • SUB Board is damaged. • APG Motor driver failure failure
• Troubleshooting Guides: 1. Replace the APG Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 151C
• Description: APG Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of APG Motor Assy cable is opposite. • APG Motor Assy encoder failure
• Troubleshooting Guides: Replace the APG Motor Assy.

• Code: 151D
• Description: APG Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 151E
• Description: APG Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • APG Motor Assy encoder failure • APG Motor failure • SUB Board is damaged. • APG Motor driver failure
• Troubleshooting Guides: 1. Replace the APG Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 151F
• Description: APG Motor lock error
• Causes: 1. Connection failure of the APG Motor Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • APG Motor Assy encoder failure • APG Motor failure
• Troubleshooting Guides: Replace the APG Motor Assy.

• Code: 1520
• Description: Roll Feeding Motor lock retry error
• Causes: 1. Detects an irregular load of the Roll Feeding Motor. • Roll Lock Sensor failure • Roll Feeding Motor failure 2. Detects the velocity deviation error of the Roll Feeding Motor. • Roll Feeding Motor Assy encoder failure • SUB Board is damaged. • Roll Feeding Motor driver failure
• Troubleshooting Guides: 1. Replace the Roll Lock Sensor. 2. Replace the Roll Feeding Motor Assy. 3. Replace the SUB-D Board. 4. Replace the Main Board.

• Code: 1521
• Description: Roll Lock Sensor detection error
• Causes: 1. Connection failure of the Roll Lock Sensor. 2. Cannot detect Roll lock operation. • Roll Lock Sensor failure • Roll Feeding Motor failure
• Troubleshooting Guides: 1. Replace the Roll Lock Sensor. 2. Replace the Roll Feeding Motor Assy.

• Code: 1522
• Description: Roll Feeding Sensor detection error
• Causes: 1. Connection failure of the Roll Feeding Sensor. 2. Roll Feeding Sensor does not detect the end of paper. • Roll Feeding Sensor failure • Roll Feeding Motor failure
• Troubleshooting Guides: 1. Replace the Roll Feeding Sensor. 2. Replace the Roll Feeding Motor Assy.

• Code: 1523
• Description: Roll Sensor error
• Causes: Cannot detect the end of the roll paper if it is fed. • Connection failure of the Roll Sensor. • Roll Sensor failure
• Troubleshooting Guides: Replace the Roll Sensor.

• Code: 152A
• Description: Roll Feeding Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Roll Feeding Motor Assy cable is damaged. • Irregular load • Roll Feeding Motor Assy encoder failure • Roll Feeding Motor failure
• Troubleshooting Guides: Replace the Roll Feeding Motor Assy.

Solve Epson Stylus Pro 4900 Error codes

• Code: 152B
• Description: Roll Feeding Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Roll Feeding Motor Assy encoder failure • SUB Board is damaged. • Roll Feeding Motor driver failure
• Troubleshooting Guides: 1. Replace the Roll Feeding Motor Assy. 2. Replace the SUB-D Board. 3. Replace the Main Board.

• Code: 152C
• Description: Roll Feeding Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of Roll Feeding Motor Assy cable is opposite. • Roll Feeding Motor Assy encoder failure
• Troubleshooting Guides: Replace the Roll Feeding Motor Assy.

• Code: 152D
• Description: Roll Feeding Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 152E
• Description: Roll Feeding Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Roll Feeding Motor Assy encoder failure • Roll Feeding Motor failure • SUB Board is damaged. • Roll Feeding Motor driver failure
• Troubleshooting Guides: 1. Replace the Roll Feeding Motor Assy. 2. Replace the SUB-D Board. 3. Replace the Main Board.

• Code: 152F
• Description: Roll Feeding Motor lock error
• Causes: 1. Connection failure of the Roll Feeding Motor Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • Roll Feeding Motor Assy encoder failure • Roll Feeding Motor failure
• Troubleshooting Guides: Replace the Roll Feeding Motor Assy.

• Code: 1530
• Description: Release sensor HP detection error
• Causes: When detecting the origin of the driven roller (to reset the driven roller), the status of the Release Sensor and the current roller position do not match. • Release Sensor failure • Release Motor failure
• Troubleshooting Guides: 1. Replace the Release Sensor. 2. Replace the Release Motor Assy.

• Code: 1531
• Description: Release Sensor error
• Causes: 1. Connection failure of the Release Sensor. 2. Cannot detect the switching operation status of the driven roller. • Release Sensor failure • Release Motor failure
• Troubleshooting Guides: 1. Replace the Release Sensor. 2. Replace the Release Motor Assy.

• Code: 153A
• Description: Release Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Release Motor Assy cable is damaged. • Irregular load • Release Motor Assy encoder failure • Release Motor failure
• Troubleshooting Guides: Replace the Release Motor Assy.

• Code: 153B
• Description: Release Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Release Motor Assy encoder failure • SUB Board is damaged. • Release Motor driver failure
• Troubleshooting Guides: 1. Replace the Release Motor Assy. 2. Replace the SUB-C Board. 3. Replace the Main Board.

• Code: 153C
• Description: Release Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of Release Motor Assy cable is opposite. • Release Motor Assy encoder failure
• Troubleshooting Guides: Replace the Release Motor Assy.

• Code: 153D
• Description: Release Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 153E
• Description: Release Motor velocity deviation error
• Causes: 1. Connection failure of the Release Sensor. 2. Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Release Motor Assy encoder failure • Release Motor failure • SUB Board is damaged. • Release Motor driver failure
• Troubleshooting Guides: 1. Replace the Release Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 153F
• Description: Release Motor lock error
• Causes: 1. Connection failure of the Release Motor. 2. Connection failure of the Release Encoder. 3. Connection between the SUB-C Board and the Main Board has an abnormality. 4. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • Release Encoder failure • Release Motor failure
• Troubleshooting Guides: Replace the Release Motor Assy.

• Code: 1540
• Description: Cutter HP Sensor detection error
• Causes: The home position of the Cutter is not detected. • Operation failure due to paper jam • Cutter HP Sensor failure • Cutter Motor Assy failure
• Troubleshooting Guides: 1. Replace the Cutter HP Sensor. 2. Replace the Cutter Motor Assy.

• Code: 1541
• Description: Cutter return error
• Causes: The Cutter cannot return to its home position. • Slipping of the teeth of the Cutter Timing Belt. • Cutter HP Sensor failure
• Troubleshooting Guides: Replace the Cutter HP Sensor.

• Code: 1549
• Description: Cutter Motor disconnection error
• Causes: 1. Connection between the SUB-B Board and the Main Board has an abnormality. 2. The Cutter Unit operation is not detected. • Irregular load • Cutter Motor Assy cable is damaged. • Cutter Motor Assy encoder failure • Cutter Motor Assy failure
• Troubleshooting Guides: Replace the Cutter Motor Assy.

• Code: 154A
• Description: Cutter Motor overload error
• Causes: 1. Connection failure of the Cutter HP Sensor. 2. The electric current flowing when driving the motor is irregularly large. • Irregular load • Cutter Motor Assy cable is damaged. • Cutter Motor Assy encoder failure • Cutter Motor Assy failure
• Troubleshooting Guides: Replace the Cutter Motor Assy.

• Code: 154B
• Description: Cutter Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Slipping of the teeth of the Cutter Timing Belt. • Cutter Motor Assy encoder failure • SUB Board is damaged. • Cutter Motor Assy driver failure
• Troubleshooting Guides: 1. Replace the Cutter Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board. (See P.152

• Code: 154C
• Description: Cutter Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of Cutter Motor Assy cable is opposite. • Cutter Motor Assy encoder failure
• Troubleshooting Guides: Replace the Cutter Motor Assy.

• Code: 154D
• Description: Cutter Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 154E
• Description: Cutter Motor velocity deviation error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Slipping of the teeth of the Cutter Timing Belt. • Cutter Motor Assy encoder failure • SUB Board is damaged. • Cutter Motor Assy driver failure
• Troubleshooting Guides: 1. Replace the Cutter Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 154F
• Description: Cutter Motor lock error
• Causes: 1. Connection failure of the Cutter Motor Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • Cutter Motor Assy encoder failure • Cutter Motor Assy failure
• Troubleshooting Guides: Replace the Cutter Motor Assy.

• Code: 1551
• Description: Paper Thickness Sensor error
• Causes: 1. During detection of paper thickness, the thickness cannot be determined because the sensor is not stable due to vibration or the like. 2. The Paper Thickness Sensor is damaged and cannot detect the paper thickness correctly.
• Troubleshooting Guides: Replace the Paper Thickness Sensor.

• Code: 155A
• Description: DCP Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Decompression Pump cable is damaged. • Irregular load • Decompression Pump encoder failure • Decompression Pump failure
• Troubleshooting Guides: Replace the Decompression Pump.

• Code: 155B
• Description: DCP Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • Decompression Pump encoder failure • SUB Board is damaged. • Decompression Pump driver failure
• Troubleshooting Guides: 1. Replace the Decompression Pump. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 155C
• Description: DCP Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of Decompression Pump Assy cable is opposite. • Decompression Pump Assy encoder failure
• Troubleshooting Guides: Replace the Decompression Pump.

• Code: 155D
• Description: DCP Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 155E
• Description: DCP Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Decompression Pump Assy encoder failure • Decompression Pump failure • SUB Board is damaged. • Decompression Pump driver failure
• Troubleshooting Guides: 1. Replace the Decompression Pump. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 155F
• Description: DCP Motor lock error
• Causes: 1. Connection failure of the Decompression Pump Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • Decompression Pump Assy encoder failure • Decompression Pump failure
• Troubleshooting Guides: Replace the Decompression Pump.

• Code: 1561
• Description: Paper thickness at power-on error
• Causes: At power-on, the paper thickness sensor detects more than 2.2 mm paper thickness.
• Troubleshooting Guides: Replace the Paper Thickness Sensor.

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• Code: 1562
• Description: ASF Motor abnormal load detection error
• Causes: When driving the ASF motor, the electric current to drive the motor exceeded the threshold value continuously more than specified times. • Paper feed error at the ASF • Connection between the ASF Motor and the SUB-C Board has an abnormality. • ASF Motor Assy encoder failure • ASF Motor failure
• Troubleshooting Guides: Replace the ASF Motor Assy.

• Code: 156A
• Description: ASF Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Irregular load • ASF Motor Assy cable is damaged. • ASF Motor Assy encoder failure • ASF Motor failure
• Troubleshooting Guides: Replace the ASF Motor Assy.

• Code: 156B
• Description: ASF Motor over speed error
• Causes: Detects that it is being driven at an irregularly faster speed than the specified value just before stopping. • Irregular load • ASF Motor Assy encoder failure • SUB Board is damaged. • ASF Motor driver failure
• Troubleshooting Guides: 1. Replace the ASF Motor Assy. 2. Replace the SUB-C Board. 3. Replace the Main Board.

• Code: 156C
• Description: ASF Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of ASF Motor Assy cable is opposite. • ASF Motor Assy encoder failure
• Troubleshooting Guides: Replace the ASF Motor Assy.

• Code: 156D
• Description: ASF Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 156E
• Description: ASF Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • ASF Motor Assy encoder failure • ASF Motor failure • SUB Board is damaged. • ASF Motor driver failure
• Troubleshooting Guides: 1. Replace the ASF Motor Assy. 2. Replace the SUB-C Board. 3. Replace the Main Board.

• Code: 156F
• Description: ASF Motor lock error
• Causes: Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • ASF Motor Assy encoder failure • ASF Motor failure
• Troubleshooting Guides: Replace the ASF Motor Assy.

• Code: 1571
• Description: ASF Retard Roller Sensor operation error
• Causes: ASF Retard Roller is not operating. • Connection failure of the Retard Roller Sensor. • Retard Roller Sensor failure • ASF Sub Motor failure
• Troubleshooting Guides: 1. Replace the Retard Roller Sensor. 2. Replace the ASF Sub Motor Assy.

• Code: 1572
• Description: ASF Pickup Roller operation error
• Causes: ASF Pickup Roller is not operating. • Connection failure of the Pickup Unit Sensor. • Pickup Unit Sensor failure • ASF Sub Motor failure
• Troubleshooting Guides: 1. Replace the Pickup Unit Sensor. 2. Replace the ASF Sub Motor Assy. .

• Code: 1573
• Description: ASF Assist Roller operation error
• Causes: ASF Assist Roller is not operating. • Connection failure of the Assist Roller Sensor. • Assist Roller Sensor failure • ASF Sub Motor failure
• Troubleshooting Guides: 1. Replace the Assist Roller Sensor. 2. Replace the ASF Sub Motor Assy.

• Code: 157A
• Description: ASF Sub Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Irregular load • ASF Sub Motor Assy cable is damaged. • ASF Sub Motor Assy encoder failure • ASF Sub Motor failure
• Troubleshooting Guides: Replace the ASF Sub Motor Assy.

• Code: 157B
• Description: ASF Sub Motor over speed error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • ASF Sub Motor Assy encoder failure • ASF Sub Motor failure • SUB Board is damaged. • ASF Sub Motor driver failure
• Troubleshooting Guides: 1. Replace the ASF Sub Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 157C
• Description: ASF Sub Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of ASF Sub Motor Assy cable is opposite. • ASF Sub Motor Assy encoder failure
• Troubleshooting Guides: Replace the ASF Sub Motor Assy.

• Code: 157D
• Description: ASF Sub Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 157E
• Description: ASF Sub Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • ASF Sub Motor Assy encoder failure • ASF Sub Motor failure • SUB Board is damaged. • ASF Sub Motor driver failure
• Troubleshooting Guides: 1. Replace the ASF Sub Motor Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 157F
• Description: ASF Sub Motor lock error
• Causes: 1. Connection failure of the ASF Sub Motor Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • ASF Sub Motor Assy encoder failure • ASF Sub Motor failure
• Troubleshooting Guides: Replace the ASF Sub Motor Assy.

• Code: 1581
• Description: Paper eject position error
• Causes: When paper eject position is shifting, it cannot be shifted properly or this operation itself cannot be detected (Release => low load star wheels => high load star wheels). • Foreign object is stuck. • Connection error of the Eject Star Wheels Position Sensor • Eject Star Wheels Position Sensor failure • Edge Release Assy encoder failure • Edge Release Assy failure
• Troubleshooting Guides: 1. Replace the Eject Star Wheels Position Sensor. 2. Replace the Edge Release Assy.

• Code: 1582
• Description: ASF Edge Guide open/close error
• Causes: ASF Edge Guide is not operating. The operation of the ASF Edge Guide is not detected. • Connection failure of the EG Sensor. • EG Sensor failure • Edge Release Assy encoder failure • Edge Release Assy failure
• Troubleshooting Guides: 1. Replace the Edge Sensor. 2. Replace the Edge Release Assy.

• Code: 158A
• Description: EG Motor overload error
• Causes: The electric current flowing when driving the motor is irregularly large. • Irregular load • Edge Release Assy cable is damaged. • Edge Release Assy encoder failure • Edge Release Assy failure
• Troubleshooting Guides: Replace the Edge Release Assy.

• Code: 158B
• Description: EG Motor over speed error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Edge Release Assy encoder failure • Edge Release Assy failure • SUB Board is damaged. • Edge Release Assy driver failure
• Troubleshooting Guides: 1. Replace the Edge Release Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 158C
• Description: EG Motor reversing error
• Causes: Detects accumulatively more than the specified number of times that it is being driven in the opposite direction to the specified driving direction. • The polarity of Edge Release Assy cable is opposite. • Edge Release Assy encoder failure
• Troubleshooting Guides: Replace the Edge Release Assy.

• Code: 158D
• Description: EG Motor driving time-out error
• Causes: Detects that the driving period is irregularly long. • Irregular load • Firmware becomes out of control.
• Troubleshooting Guides: Replace the Main Board.

• Code: 158E
• Description: EG Motor velocity deviation error
• Causes: Detects, when accelerating/decelerating the motor, that it is being driven at an irregularly faster speed than the specified value. • Irregular load • Edge Release Assy encoder failure • Edge Release Assy failure • SUB Board is damaged. • Edge Release Assy driver failure
• Troubleshooting Guides: 1. Replace the Edge Release Assy. 2. Replace the SUB-B Board. 3. Replace the Main Board.

• Code: 158F
• Description: EG Motor lock error
• Causes: 1. Connection failure of the Edge Release Assy. 2. Detects that it is being driven at an irregularly slower speed than the specified value. • Irregular load • Edge Release Assy encoder failure • Edge Release Assy failure
• Troubleshooting Guides: Replace the Edge Release Assy.

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