Remedy: 1 Check of DRIVE ASSY BTR attachment Is the DRIVE ASSY BTR attached correctly? Go to Step [2]. Re-attach, and go to step [2]. 2 Check of 2ND BTR ASSY attachment Is 2ND BTR ASSY attached correctly? Go to Step [4]. Re-attach, and go to step [3]. 3 Does the error recur when a test print is made? Go to Step [4]. End of procedure 4 Continuity check of HARNESS ASSY MAIN Disconnect the P/J403 from PWBA MCU. Do all of the wiring below have normal continuity? J403-1 . J600-3 J403-2 . J600-2 J403-3 . J600-1 Go to Step [5]. Repair broken or shorted part. 5 24 VDC power supply check to MOT ASSY MICRO (2nd BTR Retract Motor) The voltage of P403-3 . P403-2 on PWBA MCU is 24 VDC? Go to Step [6]. Go to Step [11]. 6 Check after replacement of MOT ASSY MICRO Replace MOT ASSY MICRO. Does the error recur when a test print is made? Go to Step [7]. End of procedure 7 5 VDC power supply check to SENSOR 2BTR RETRACT The voltage of P418-4 . P418-5 on PWBA MCU is 5 VDC? Go to Step [8]. Go to Step [11]. 8 Continuity check of HARNESS ASSY ADC Disconnect the P/J418 from PWBA MCU. Do all of the wiring below have normal continuity? J418-4 . J112-3 J418-5 . J112-2 J418-6 . J112-1 Go to Step [9]. Replace HARNESS ASSY ADC. 9 Check after replacement of SENSOR 2BTR RETRACT Replace SENSOR 2BTR RETRACT. Does the error recur when a test print is made? Go to Step [10]. End of procedure 10 Check after replacement of PWBA MCU Replace PWBA MCU. Does the error recur when a test print is made? Go to Step [12]. End of procedure
Code: E521
Description: BTR 2 Error - The input of 2nd BTR Retract Sensor does not change when 2nd BTR is initialized.
Remedy: 1 Check of 2ND BTR ASSY attachment Is 2ND BTR ASSY attached correctly? Go to Step [2]. Re-attach, and go to step [2]. 2 Does the error recur when restarting the printer? Go to Step [3]. End of procedure 3 Continuity check of HARNESS ASSY MAIN Disconnect the P/J403 from PWBA MCU. Do all of the wiring below have normal continuity? J403-1 . J600-3 J403-2 . J600-2 J403-3 . J600-1 Go to Step [4]. Repair broken or shorted part. 4 24 VDC power supply check to MOT ASSY MICRO (2nd BTR Retract Motor) The voltage of P403-3 . P403-2 on PWBA MCU is 24 VDC? Go to Step [5]. Go to Step [10]. 5 Check after replacement of MOT ASSY MICRO Replace MOT ASSY MICRO. Does the error recur when restarting the printer? Go to Step [6]. End of procedure 6 5 VDC power supply check to SENSOR 2BTR RETRACT. The voltage of P418-4 . P418-5 on PWBA MCU is 5 VDC? Go to Step [7]. Go to Step [10]. 7 Continuity check of HARNESS ASSY ADC Disconnect the P/J418 from PWBA MCU. Do all of the wiring below have normal continuity? J418-4 . J112-3 J418-5 . J112-2 J418-6 . J112-1 Go to Step [8]. Replace HARNESS ASSY ADC. 8 Check after replacement of SENSOR 2BTR RETRACT Replace SENSOR 2BTR RETRACT. Does the error recur when restarting the printer? Go to Step [9]. End of procedure 9 Check after replacement of PWBA MCU Replace PWBA MCU. Does the error recur when restarting the printer? Go to Step [11]. End of procedure 10 Power supply check to PWBA MCU Are each of the power voltages being supplied to the following terminals on PWBA MCU from LV/HVPS? P410-1 . P410-2: 3. 3VDC P410-3 . P410-4: 5VDC P410-5/6 .P410-7/8: 24VDC Replace PWBA MCU. Go to Step [11]. 11 Continuity check of HARNESS ASSY MAIN Are each of the power voltages being supplied to the following terminals on PWBA MCU from LV/HVPS? J410-1 . J502-1 J410-2 . J502-2 J410-3 . J502-3 J410-4 . J502-4 J410-5 . J502-5 J410-6 . J502-6 J410-7 . J502-7 J410-8 . J502-8 Replace LV/ HVPS. Repair broken or shorted part.
Code: E523
Description: PCDC Error - PCDC is not functioning normally.
Causes: • Toner Cartridge K • Toner Cartridge Y • Toner Cartridge M • Toner Cartridge C
Remedy: 1 Check after replacement of Toner Cartridge K/Y/M/C Replace Toner Cartridge K/Y/M/C. Does the error recur when the power is turned ON? Go to Step [2]. End of procedure 2 Check after replacement of PWBA MCU Replace PWBA MCU. Does the error recur when the power is turned ON? Go to FIP-1 81 Electrical Noise End of procedure
Code: E524
Description: Low Density - The output value of SENSOR ASSY ADC (ADC Sensor) is below the specified value.
Causes: • Photoconductor Unit • SENSOR ASSY ADC • Toner Cartridge K • Toner Cartridge Y • Toner Cartridge M • Toner Cartridge C • HARNESS ASSY ADC • SENSOR HUM & TEMP • HARNESS ASSY MAIN • ROS ASSY • PWBA MCU • LV/HVPS
Remedy: 1 Check of connection between Photoconductor Unit and CONDUCTOR attached to frame Is the contact surface of Photoconductor Unit and CONDUCTOR attached to the frame deformed or are there foreign objects on the surface? Clean, and go to Step [2]. Go to Step [2]. 2 Check of dirt and foreign bodies on surface of SENSOR ASSY ADC Are there any dirt or foreign bodies on the SENSOR ASSY ADC surface? Clean, and go to Step [3]. Go to Step [4]. 3 Does the error recur when the power is turned ON? Go to Step [4]. End of procedure 4 Check after replacement of Toner Cartridge Replace Toner Cartridge of each color. Does the error recur when the power is turned ON? Go to Step [5]. End of procedure 5 Check after replacement of Photoconductor Unit Replace Photoconductor Unit. Does the error recur when the power is turned ON? Go to Step [6]. End of procedure 6 5 VDC and 24 VDC power supply check to SENSOR ASSY ADC The voltage of P422-2 . P422-4 on PWBA MCU is 24 VDC? And the voltage of P422-8 . P422-4 is 5 VDC? Go to Step [7]. Go to Step [14]. 7 Continuity check of HARNESS ASSY ADC Disconnect P/J422 from PWBA MCU. Do all of the wiring below have normal continuity? J422-8 . J431-1 J422-4 . J431-5 J422-2 . J431-7 Go to Step [8]. Replace HARNESS ASSY ADC. 8 Check after replacement of SENSOR ASSY ADC Replace SENSOR ASSY ADC. Does the error recur when the power is turned ON? Go to Step [9]. End of procedure 9 5 VDC power supply check to SENSOR HUM & TEMP The voltage of P413-4 . P413-2 on PWBA MCU is 5 VDC? Go to Step [10]. Go to Step [14]. 10 Continuity check of HARNESS ASSY MAIN Disconnect P/J413 from PWBA MCU. Do all of the wiring below have normal continuity? J413-1 . J104-4 J413-2 . J104-3 J413-3 . J104-2 J413-4 . J104-1 Go to Step [11]. Repair broken or shorted part.
Code: E525
Description: High Density - The output value of SENSOR ASSY ADC (ADC Sensor) exceeds the specified value.
Causes: • Photoconductor Unit • SENSOR ASSY ADC • Toner Cartridge K • Toner Cartridge Y • Toner Cartridge M • Toner Cartridge C • HARNESS ASSY ADC • SENSOR HUM & TEMP • HARNESS ASSY MAIN • ROS ASSY • PWBA MCU • LV/HVPS
Remedy: 1 Check of connection between Photoconductor Unit and CONDUCTOR attached to frame Remove Photoconductor Unit. Is the contact surface of Photoconductor Unit and CONDUCTOR attached to the frame deformed or are there foreign objects on the surface? Clean, and go to Step [2]. Go to Step [2]. 2 Check of dirt and foreign bodies on surface of SENSOR ASSY ADC Are there any dirt or foreign bodies on the SENSOR ASSY ADC surface? Clean, and go to Step [3]. Go to Step [4]. 3 Does the error recur when the power is turned ON? Go to Step [4]. End of procedure 4 Check after replacement of Toner Cartridge Replace Toner Cartridge of each color. Does the error recur when the power is turned ON? Go to Step [5]. End of procedure 5 Check after replacement of Photoconductor Unit Replace Photoconductor Unit. Does the error recur when the power is turned ON? Go to Step [6]. End of procedure 6 5 VDC and 24 VDC power supply check to SENSOR ASSY ADC The voltage of P422-2 . P422-4 on PWBA MCU is 24 VDC? And the voltage of P422-8 . P422-4 is 5 VDC? Go to Step [7]. Go to Step [14]. 7 Continuity check of HARNESS ASSY ADC Disconnect P/J422 from PWBA MCU. Do all of the wiring below have normal continuity? J422-8 . J431-1 J422-4 . J431-5 J422-2 . J431-7 Go to Step [8]. Replace HARNESS ASSY ADC. 8 Check after replacement of SENSOR ASSY ADC Replace SENSOR ASSY ADC. Does the error recur when the power is turned ON? Go to Step [9]. End of procedure 9 Check of 5 VDC power supply to SENSOR ASSY HUM & TEMP The voltage of P413-4 . P413-2 on PWBA MCU is 5 VDC? Go to Step [10]. Go to Step [14]. 10 Continuity check of HARNESS ASSY MAIN Disconnect P/J413 from PWBA MCU. Do all of the wiring below have normal continuity? J413-1 . J104-4 J413-2 . J104-3 J413-3 . J104-2 J413-4 . J104-1 Go to Step [11]. Repair broken or shorted part. 11 Check after replacement of SENSOR HUM & TEMP Replace SENSOR HUM & TEMP. Does the error recur when the power is turned ON? Go to Step [12]. End of procedure 12 Check after replacement of ROS ASSY Replace ROS ASSY. Does the error recur when the power is turned ON? Go to Step [13]. End of procedure 13 Check after replacement of PWBA MCU Replace PWBA MCU. Does the error recur when the power is turned ON? Replace LV/ HVPS. End of procedure 14 Power supply check to PWBA MCU Are each of the power voltages being supplied to the following terminals on PWBA MCU from LV/HVPS? P410-1 . P410-2: 3. 3 VDC P410-3 . P410-4: 5 VDC P410-5/6 . P410-7/8: 24 VDC Replace PWBA MCU. Go to Step [15]. 15 Continuity check of HARNESS ASSY MAIN Disconnect P/J410 from PWBA MCU and P/ J502 from LV/HVPS. Do all of the wiring below have normal continuity? J410-1 . J502-1 J410-2 . J502-2 J410-3 . J502-3 J410-4 . J502-4 J410-5 . J502-5 J410-6 . J502-6 J410-7 . J502-7 J410-8 . J502-8 Replace LV/ HVPS. Repair broken or shorted part.
Remedy: 1 Check of dirt and foreign bodies on surface of SENSOR ASSY ADC Are there any dirt or foreign bodies on the SENSOR ASSY ADC surface? Clean to remove any dirt or foreign bodies, and go to step [2]. Go to Step [2]. 2 Check of SENSOR ASSY ADC attachment Is SENSOR ASSY ADC attached correctly? Go to Step [4]. Re-attach, and go to step [3]. 3 Does the error recur when the power is turned ON? Go to Step [4]. End of procedure 4 5 VDC and 24 VDC power supply check to SENSOR ASSY ADC The voltage of P422-2 . P422-4 on PWBA MCU is 24 VDC? And the voltage of P422-8 . P422-4 is 5 VDC? Go to Step [5]. Go to Step [7]. 5 Continuity check of HARNESS ASSY ADC Disconnect P/J422 from PWBA MCU. Do all of the wiring below have normal continuity? J422-8 . J431-1 J422-4 . J431-5 J422-2 . J431-7 Go to Step [6]. Replace HARNESS ASSY ADC. 6 Check after replacement of SENSOR ASSY ADC Replace SENSOR ASSY ADC. Does the error recur when the power is turned ON? Go to Step [7]. End of procedure 7 Power supply check to PWBA MCU Are each of the power voltages being supplied to the following terminals on PWBA MCU from LV/HVPS? P410-1 . P410-2: 3. 3 VDC P410-3 . P410-4: 5 VDC P410-5/6 . P410-7/8: 24 VDC Replace PWBA MCU. Go to Step [8]. 8 Continuity check of HARNESS ASSY MAIN Disconnect P/J410 from PWBA MCU and P/ J502 from LV/HVPS. Do all of the wiring below have normal continuity? J410-1 . J502-1 J410-2 . J502-2 J410-3 . J502-3 J410-4 . J502-4 J410-5 . J502-5 J410-6 . J502-6 J410-7 . J502-7 J410-8 . J502-8 Replace LV/ HVPS. Repair broken or shorted part.