• Code: 14
• Description: 2nd image transfer pressure /retraction failure
  • The state of the retraction position sensor/2nd image transfer is not changed from the unblocked to blocked state even after the lapse of a predetermined period of time during predrive. • The retraction position sensor/2nd image transfer is in the unblocked state even after the lapse of a predetermined period of time during predrive. • The retraction position sensor/2nd image transfer is not blocked (roller in the retracted position) within a predetermined period of time after the retraction sequence of the 2nd transfer roller has been started. • The retraction position sensor/2nd image transfer is not unblocked (roller in the pressed position) within a predetermined period of time after the pressure sequence of the 2nd transfer roller has been started.
• Remedy: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the SD4 connector for proper connection and correct as necessary. 4 Check the PRCB connector for proper connection and correct as necessary. 5 PS5 sensor check. 2500W: PRCB PJ14PRCB-3 (ON) 2530 DL: PRCB PJ14PRCB-3 (ON) 2550/2550DN: PRCB PJ14PRCB-3 (ON) 2500W: J-4 2530 DL: J-3 2550/2550DN: J-3 6 SD4 operation check. 2500W: PRCB PJ11PRCB-2 (REM) 2530 DL: PRCB PJ11PRCB-2 (REM) 2550/2550DN: PRCB PJ11PRCB-2 (REM) 2500W: C-11 2530 DL: C-10 2550/2550DN: C-10. 7 M1 operation check. 2500W: PRCB PJ8PRCB-5 (REM) PRCB PJ8PRCB-8 (LOCK) 2530 DL: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2550/2550DN: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2500W: C-7 2530 DL: C-6 2550/2550DN: C-6. 8 Change PRCB.

• Code: 15
• Description: Cleaning blade pressure /retraction failure
  • The state of the retraction position sensor/cleaning blade is not changed from the blocked to unblocked state even after the lapse of a predetermined period of time during predrive. • The retraction position sensor/cleaning blade is in the blocked state even after the lapse of a predetermined period of time during predrive. • The retraction position sensor/cleaning blade is not unblocked (blade in the retracted position) within a predetermined period of time after the retraction sequence of the cleaning blade has been started. • The retraction position sensor/cleaning blade is not blocked (blade in the pressed position) within a predetermined period of time after the pressure sequence of the cleaning blade has been started.
• Remedy: 1 Check the M1 connector for proper connection and correct as necessary. 2 Check M1 for proper drive coupling and correct as necessary. 3 Check the SD3 connector for proper connection and correct as necessary. 4 Check the PRCB connector for proper connection and correct as necessary. 5 PS6 sensor check. 2500W: PRCB PJ9PRCB-11 (ON) 2530 DL: PRCB PJ9PRCB-11 (ON) 2550/2550DN: PRCB PJ9PRCB-11 (ON) 2500W: C-7 2530 DL: C-6 2550/2550DN: C-6. 6 SD3 operation check. 2500W: PRCB PJ10PRCB-5 (REM) 2530 DL: PRCB PJ10PRCB-5 (REM) 2550/2550DN: PRCB PJ10PRCB-5 (REM) 2500W: C-6 2530 DL: C-5 2550/2550DN: C-5 7 M1 operation check. 2500W: PRCB PJ8PRCB-5 (REM) PRCB PJ8PRCB-8 (LOCK) 2530 DL: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2550/2550DN: PRCB PJ8PRCB-5(REM) PRCB PJ8PRCB-5(LOCK) 2500W: C-7 2530 DL: C-6 2550/2550DN: C-6. 8 Change PRCB.

• Code: 16
• Description: Transfer belt rotation failure
  • The belt positioning sensor does not detect the transfer belt position detection hole a second time even after the lapse of a predetermined period of time after it has detected one while the transfer belt is rotated.
• Remedy: 1 Check the PRCB connector for proper connection and correct as necessary. 2 PS4 sensor check. 2500W: PRCB PJ9PRCB-8 (ON) 2530 DL: PRCB PJ9PRCB-8 (ON) 2550/2550DN: PRCB PJ9PRCB-8 (ON) 2500W: C-8 2530 DL: C-6 2550/2550DN: C-6. 3 Change transfer belt unit. 4 Change PRCB.

• Code: 17
• Description: Rack rotation failure
  • The rack positioning sensor is in the blocked state when the rack motor remains deenergized. • The rack positioning sensor is not blocked a second time even after the lapse of a predetermined period of time after it has been blocked once while the rack motor remains energized. • The rack positioning sensor is unable to detect the deceleration control position after the lapse of a given period of time after the rack motor has started while the rack motor is turning. • The count value of the edge of ON signal of the rack positioning sensor during each developing positions are not a predetermined value while the rack motor is turning.
• Remedy: 1 Check the M2 connector for proper connection and correct as necessary. 2 Check M2 for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 PS3 sensor check. 2500W: PRCB PJ5PRCB-11 (ON) 2530 DL: PRCB PJ5PRCB-11 (ON) 2550/2550DN: PRCB PJ5PRCB-11 (ON) 2500W: C-8 2530 DL: C-7 2550/2550DN: C-7. 5 M2 operation check. 2500W: PRCB PJ5PRCB-1?«4 (Pulse Output) 2530 DL: PRCB PJ5PRCB-1?«4 (Pulse Output) 2550/2550DN: PRCB PJ5PRCB-1?«4 (Pulse Output) 2500W: C-9 2530 DL: C-8 2550/2550DN: C-8. 6 Change PRCB.

• Code: 18
• Description: Heating roller warm-up failure
  • The thermistor does not detect a predetermined temperature value even after the lapse of a predetermined period of time after the current warm-up cycle has been started and the current warm-up cycle is thus not completed.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary. 3 check the lever of the safety switch and correct as necessary. 4 change the fusing unit. 5 Change PRCB. 6 Change PDCU.

• Code: 19
• Description: Abnormally low heating roller temperature
  • The temperature detected by the thermistor remains lower than a predetermined value for a predetermined period of time.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary. 3 check the lever of the safety switch and correct as necessary. 4 change the fusing unit. 5 Change PRCB. 6 Change PDCU.

• Code: 1A
• Description: Abnormally high heating roller temperature
  • The temperature detected by the thermistor is a predetermined value or higher for a predetermined period of time.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary. 3 check the lever of the safety switch and correct as necessary. 4 change the fusing unit. 5 Change PRCB. 6 Change PDCU.

• Code: 1B
• Description: Faulty thermistor
  • The condition of a temperature rise of less than 1°C extends continuously for a predetermined period of time that begins when the warm-up cycle is started.
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, PDCU, and PRCB for proper connection and correct as necessary. 3 check the lever of the safety switch and correct as necessary. 4 change the fusing unit. 5 Change PRCB. 6 Change PDCU.