SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC551-01

A

Thermopile (Edge) Disconnection

In Machine Condition A, after turning the fusing lamp on, the thermopile (edge) (TH2) has detected the temperature of -50°C or below continuously for 0.1 second.

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. Reconnect the connectors (main machine side, BICU side).
  2. Replace the thermopile (edge) (TH2).
  3. Replace the harness between the fusing unit and the BICU.
  4. Replace the BICU (PCB10), or the PSU (AC controller board) (PCB9).

SC551-02

A

Non-contact Thermistor (Edge) Disconnection

In Machine Condition A, after turning the fusing lamp on, the non-contact thermistor (edge) (S47) has detected the temperature of 36°C or higher continuously for 1 second.

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. Reconnect the connectors (between the fusing unit and the BICU).
  2. Replace the non-contact thermistor (S46) (S47) with the harness.
  3. Replace the fusing unit.
  4. Replace the harness between the fusing unit and the BICU.
  5. Replace the BICU (PCB10).

SC551-03

A

Non-contact Thermistor (Edge) Short-circuit

In Machine Condition A, after turning the fusing lamp on, the non-contact thermistor (edge) (S47) has detected the AD value of 8 or below continuously for 1 second.

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. Reconnect the connectors (between the fusing unit and the BICU).
  2. Replace the non-contact thermistor (S46) (S47) with the harness.
  3. Replace the fusing unit.
  4. Replace the harness between the fusing unit and the BICU.
  5. Replace the BICU (PCB10).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC552-02

A

Thermopile (Edge) Does Not Reload

In Machine Condition B, after turning the fusing lamp (edge) on, the thermopile (edge) (TH2) has failed to reach 65°C in 14 seconds.

Machine Condition B refers to any of the following conditions:

  • In Warm-up mode
  • At start-up and restart-up

SC552-03

A

Thermopile (Edge) Does Not Reload

In Machine Condition B, after turning the fusing lamp (edge) on, the thermopile (edge) (TH2) has failed to reach the "permissible temperature for reloading" in 28 seconds.

Machine Condition B refers to any of the following conditions:

  • In Warm-up mode
  • At start-up and restart-up

SC552-05

D

Thermopile (Edge) Does Not Reload (Low Power)

The detection criteria is the same as that for SC552-02.

SC552-06

D

Thermopile (Edge) Does Not Reload (Low Power)

The detection criteria is the same as that for SC552-03.

 

 

  • Thermopile lens dirt
  • Thermopile modification/float
  • After excessive temperature rise prevention unit operation
  • Outside input voltage guarantee
  1. Check the power supply voltage and reconnect the cable to the outlet.
  2. Remove the jammed paper between the thermopile and fusing unit.
  3. Clean or replace the thermopile (edge).
  4. Replace the fusing sleeve thermostat.
  5. Reconnect the fusing sleeve belt unit.
  6. Reconnect or 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).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC553-00

A

Thermopile (Edge) High Temperature Detection (software)

The thermopile (edge) (TH2) has detected the temperature of 240°C or higher continuously for 1 second.

  • Triac short-circuit
  • IOB board defective
  • BCU board defective
  1. Inspect the fusing sleeve belt unit, and replace if damaged.
  2. Check the paper settings.
  3. Check the paper position in the paper feed tray.
  4. Reconnect the connectors (main machine side, BICU side).
  5. Inspect or replace the gears in the fusing unit or main machine.
  6. Replace the thermopile (edge) (TH2).
  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).

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

SC554-01

A

Thermopile (Edge) high temperature detection (hardware)

In the event of an error

  • Triac short-circuit
  • IOB board defective
  • BCU board defective
  1. Inspect the fusing sleeve belt unit, and replace if damaged.
  2. Check the paper settings.
  3. Check the paper position in the paper feed tray.
  4. Reconnect the connectors (main machine side, BICU side).
  5. Inspect or replace the gears in the fusing unit or main machine.
  6. Inspect the pressure roller HP sensor (S26) with SP5-803-047.
  7. Replace the thermopile (edge) (TH2).
  8. Replace the harness between the fusing unit and the BICU or the PSU (AC controller board).
  9. Replace the BICU (PCB10).
  10. Replace the PSU (AC controller board) (PCB9).

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

SC554-02

A

Non-contact Thermistor (Edge) high temperature detection (hardware)

In the event of an error

  • Triac short-circuit
  • IOB board defective
  • BICU board defective
  1. Inspect the fusing sleeve belt unit, and replace if damaged.
  2. Check the paper settings.
  3. Check the paper position in the paper feed tray.
  4. Reconnect the connectors (main machine side, BICU side).
  5. Remove the jammed paper between the thermopile and fusing unit.
  6. Clean or replace the thermopile (edge) (TH2).
  7. Replace the fusing unit.
  8. Inspect the pressure roller HP sensor (S26) with SP5-803-047.
  9. Replace the harness between the fusing unit and the BICU or the PSU (AC controller board).
  10. Replace the BICU (PCB10).
  11. Replace the PSU (AC controller board) (PCB9).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC555-01

A

Fusing Edge Lamp Continuously Heat

SC555-05

D

Fusing Edge Lamp Continuously Heat  (Low Power)

 

 

After waiting for full power for more than 5 sec continuously.

  • Definition of fusing lamp full power
    Continuously heating rate set point (maximum heating rate)
  • Measurement start point
    After reload (after fusing lamp extinguished, after rotation complete) below the standby temperature (target temperature), measurement starts after a fusing lamp heat-up request is issued.
  • Measurement stop condition
    Rotation started due to a print signal during measurement or other
    Maximum heat-up Duty (SP interlinked value) 0% is excluded
  • Thermistor modification/float
  • Fusing lamp disconnection
  • After excessive temperature rise prevention unit operation
  1. Check the power supply voltage and reconnect the cable to the outlet.
  2. Remove the jammed paper between the thermopile and fusing unit.
  3. Clean or replace the thermopile (edge) (TH2).
  4. Replace the fusing sleeve thermostat.
  5. Replace the fusing sleeve belt unit.
  6. Reconnect or 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).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC557-00

C

Zero Cross Frequency Exceeded

In the event of an error

Frequency instability of mains power supply /Noise

-

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC558-01

C

Low Input Voltage

Input voltage below the specification is detected on the mains power supply

Low input of mains power supply

-

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC559-00

A

Fusing Jam Detected for 3 Times Consecutively

Fusing jam (does not reach fusing exit sensor (S27)) is detected for 3 times consecutively.

  • Detection conditions

Displays the SC559-00 at the time of integrating the counter each time fusing jam occurs, became fusing jam counter value = 3.

The counter value is retained without fusing jam also reset by OFF/ON the power supply.

  • Control ON/OFF

And enables ON / OFF is this SC, the default is set to OFF, then ON at the time of customer requirements.

SP1-142-001 0: OFF (default), 1: ON (Set at the time of customer requirements)

  • Counter reset condition occurs fusing jam
  1. Normal paper exit has been done during this continuous fusing jam, fusing jam counter is reset.
  2. When "1" is changed to "0" SP1-142-001, to reset the (SP9-912-001) fusing jam counter.
  3. When after displaying SC559, SC release is made, reset the (SP9912-001) fusing jam counter.

 

 

Fusing unit paper jam
  1. Inspect or replace the stripper plate.
  2. Replace the gears in the fusing unit or main machine.
  3. Replace the fusing motor (M8).
  4. Replace the fusing unit.