SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC581-01

A

Pressure Roller Thermistor (Full-bleed edge) Thermistor Disconnection

SC581-05

D

Pressure Roller Thermistor (Full-bleed edge) Disconnection (Low Power)

 

 

In Machine Condition A, after turning the fusing lamp on, the pressure roller thermistor (full-bleed edge) (TH5) has detected the temperature of 0°C or below continuously for 40 seconds.

Machine Condition A refers to any of the following conditions:

  • In Warm-up mode
  • At start-up and restart-up
  • Rotation after reload
  • Before/while/after printing
  • In Ready mode
  • In Panel Off mode
  • In Low Power mode
  • Thermopile disconnection
  • Thermistor disconnection
  • Connector error (disconnected, loose)
  1. Check the power supply voltage and reconnect the cable to the outlet. (-05 only)
  2. Replace the fusing sleeve thermostat (edge/center).
  3. Replace the pressure roller thermistor (full-bleed edge) (TH5).
  4. Replace the fusing sleeve belt unit.
  5. Replace the thermopile (edge) (TH2)
  6. Replace the BICU (PCB10).
  7. Replace the PSU (AC controller board) (PCB9).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC582-04

A

Pressure Roller Thermistor (Full-bleed edge) Does Not Reload

SC582-05

D

Pressure Roller Thermistor (Full-bleed edge) Does Not Reload (Low Power)

 

 

After starting to print a job with the paper width of 257 mm or more, the pressure roller thermistor (full-bleed edge) (TH5) has failed to reach 0°C in 100 seconds.

  • Thermistor dirt
  • Thermistor modification/float
  • Outside input voltage guarantee
  • After excessive temperature rise prevention unit operation
  1. Check the power supply voltage and reconnect the cable to the outlet.
  2. Clean or replace the pressure roller thermistor (full-bleed edge) (TH5).
  3. Replace the fusing sleeve thermostat.
  4. Replace the fusing sleeve belt unit.
  5. Replace the harness between the fusing unit and the BICU or the PSU (AC controller board).
  6. replace the thermopile (edge) (TH2).
  7. Replace the BICU (PCB10).
  8. Replace the PSU (AC controller board) (PCB9).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC583-00

A

Pressure Roller Thermistor (Full-bleed edge) High Temperature Detection (software)

The pressure roller thermistor (full-bleed edge) (TH4) has detected the temperature of 230°C or higher continuously for 1 second.

  • Triac short-circuit
  • IOB board defective
  • BICU board defective
  1. Check the paper settings.
  2. Check the paper position in the paper feed tray.
  3. Reconnect the connectors (main machine side, BICU side).
  4. Remove the jammed paper between the thermopile and fusing unit.
  5. Clean or replace the thermopile (edge) (TH2).
  6. Replace the harness between the fusing unit and the BICU or the PSU (AC controller board).
  7. Replace the BICU (PCB10).
  8. Replace the PSU (AC controller board) (PCB9).
  9. If the problem cannot be solved after performing the above steps, replace the fusing unit.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC584-00

A

Pressure Roller Thermistor (Full-bleed edge) High Temperature Detection (hardware)

Above 240 degrees C detected

  • Triac short-circuit
  • IOB board defective
  • BICU board defective
  1. Check the paper settings.
  2. Check the paper position in the paper feed tray.
  3. Reconnect the connectors (main machine side, BICU side).
  4. Remove the jammed paper between the thermopile and fusing unit.
  5. Clean or replace the thermopile (edge) (TH2).
  6. Inspect the pressure roller HP sensor (S26) with SP5-803-047.
  7. Replace the harness between the fusing unit and the BICU or the PSU (AC controller board).
  8. Replace the BICU (PCB10).
  9. Replace the PSU (AC controller board) (PCB9).
  10. If the problem cannot be solved after performing the above steps, replace the fusing unit.