SC5xx: Paper Feed and Fusing

501

B

Paper Tray 1 error

502

B

Paper Tray 2 error

-

-

• When the tray lift motor rotates counterclockwise, (if the upper limit is not detected within 10 seconds), the machine asks the user to reset the tray.

• When the tray lift motor rotates clockwise, (if the upper limit is not detected within 1.5 seconds), the machine asks the user to reset the tray.

If one of these conditions occurs three consecutive times, the SC is generated.

• Disconnected or defective paper lift sensor

• Disconnected or defective tray lift motor

• Defective bottom plate lift mechanism

• Too much paper in the tray

• Defective IOB

1. Check if the paper is not loaded too much.

2. Check if the bottom plate smoothly moves up and down manually.

3. Check and/or replace the tray lift motor/ paper lift sensor.

4. Replace the IOB.

503-01

B

Tray 3 error (Paper Feed Unit or LCT)

For the paper feed unit:

• When the tray lift motor is turned on, the upper limit is not detected within 10 seconds

For the LCT:

• SC 503-01 occurs if the upper or lower limit is not detected within 8 seconds when the tray lift motor is turned on to lift or lower the tray.

For the paper feed unit:

• Defective tray lift motor or connector disconnection

• Defective lift sensor or connector disconnection

For the LCT:

• Defective stack transport clutch or connector disconnection

• Defective tray motor or connector disconnection

• Defective end fence home position sensor or connector disconnection

• Defective upper limit sensor or connector disconnection

• Defective tray lift motor or connector disconnection

1. Check the cable connections.

2. Check and/or replace the defective component.

503-02

B

Tray 3 error (Paper Feed Unit or LCT)

This SC is generated if the following condition occurs 3 consecutive times.

For the paper feed unit:

• When the tray lowers, the tray lift sensor does not go off within 1.5 sec.

For the LCT:

• When the main switch is turned on or when the LCT is set, if the end fence is not in the home position (home position sensor ON), the tray lift motor stops.

• If the upper limit does not go off for 1.5 seconds even the tray lift motor turns on to lower the tray after the upper limit has been detected at power on.

For the paper feed unit:

• Defective tray lift motor or connector disconnection

• Defective lift sensor or connector disconnection

For the LCT:

• Defective stack transport clutch or connector disconnection

• Defective tray motor or connector disconnection

• Defective end fence home position sensor or connector disconnection

1. Check the cable connections.

2. Check and/or replace the defective component.

504-01

B

Tray 4 error (Paper Feed Unit or LCT)

For the two-tray paper feed unit

When the tray lift motor is turned on, the upper limit is not detected within 10 seconds. If this condition occurs three consecutive times, the SC is generated.

For the LCT

If the upper or lower limit is not detected within 8 seconds when the tray lift motor is turned on to lift up or lower the tray

• Defective tray lift motor or connector disconnection

• Defective lift sensor or connector disconnection

1. Check the cable connections.

2. Check and/or replace the defective component.

504-02

B

Tray 4 error (3 Tray Paper Feed Unit)

This SC is generated if the following condition occurs 3 consecutive times.

For the two-tray paper feed unit

• When the tray lowers, the tray lift sensor does not go off within 1.5 sec.

For the LCT

• If the upper limit does not go off for 1.5 seconds even the tray lift motor turns on to lower the tray after the upper limit has been detected at power on.

• Defective tray lift motor or connector disconnection

• Defective lift sensor or connector disconnection

1. Check the cable connections.

2. Check and/or replace the defective component.

505

5th tray lift malfunction (optional LCT)

-01

B

This SC is generated if the following condition occurs:

• When the tray lift sensor of the LCT 1200-sheet does not go on after the tray lift motor has turned on to lift the paper tray.

• When the tray lift sensor of the LCT 1200-sheet does not go off after the tray lift motor has turned on to lower the paper tray.

• When the tray lift sensor of the LCT 1200-sheet does not go on after the pick-up roller solenoid has turned on at power on.

• Tray lift motor defective or disconnected

• Tray lift sensor defective or disconnected

1. Check the harness connections.

2. Replace the tray lift motor.

3. Replace the tray lift sensor.

-02

B

Both tray lift sensor and lower limit sensor are turned on at the same time when the main power is turned on or the right door is closed.

• Tray lift motor defective or disconnected

• Tray lift sensor defective or disconnected

• Lowe limit sensor defective or disconnected

1. Check the harness connections.

2. Replace the tray lift motor.

3. Replace the tray lift sensor.

4. Replace the lower limit sensor.

530

D

Fusing fan error

The IOB does not receive the lock signal 10 seconds after turning on the fusing fan.

• Defective fusing fan motor or connector disconnection

• Defective IOB

Check the connector and/or replace the fusing fan motor.

531

D

Ventilation fan (at the left side of the machine) motor-front/rear error

The IOB does not receive the lock signal for 10 seconds after turning on the ventilation fan motor-front/rear.

• Defective ventilation fan motor-front or rear

• Defective IOB

1. Replace the ventilation fan (at the left side of the machine) motor-front or rear.

2. Replace the IOB.

532

D

IH coil fan error

The machine does not detect the fan motor lock signal for 10 seconds while the IH coil fan turns on.

• Disconnected harness

• Overload on the IH coil fan motor

• Defective IH coil fan motor

• Defective IOB

1. Check or replace the harness.

2. Replace the IH coil fan.

3. Replace the IOB.

533

D

IH inverter fan error

The machine does not detect the fan motor lock signal for 10 seconds while the IH inverter fan turns on.

• Disconnected harness

• Overload on the IH inverter fan motor

• Defective IH inverter fan motor

• Defective IOB

1. Check or replace the harness.

2. Replace the IH inverter fan.

3. Replace the IOB.

534

D

Second duct fan error

The machine does not detect the fan motor lock signal for 10 seconds while the second duct fan turns on.

• Disconnected harness

• Overload on the second duct fan motor

• Defective second duct motor

• Defective IOB

1. Check or replace the harness.

2. Replace the second duct fan.

3. Replace the IOB.

535

D

Paper exit fan error

The machine does not detect the fan motor lock signal for 10 seconds while the paper exit fan turns on.

• Disconnected harness

• Overload on the paper exit fan motor

• Defective paper exit motor

• Defective IOB

1. Check or replace the harness.

2. Replace the paper exit fan.

3. Replace the IOB.

536

D

Third duct fan error

The motor lock signal error is detected for 10 seconds after the motor lock signal was first detected.

• Defective third duct fan motor

• Disconnected or defective harness

• Defective IOB

1. Replace the third duct fan motor.

2. Check or replace the harness.

3. Replace the IOB.

540

D

Fusing/Paper exit motor error

The IOB does not receive the lock signal 2 seconds after turning on the fusing/paper exit motor.

• Motor overload

• Defective fusing/paper exit motor

1. Check or replace the harness.

2. Replace the fusing/paper exit motor.

541

A

Heating roller thermopile error

The temperature detected by the heating roller thermopile does not reach 0°C for 6 seconds.

• Loose connection of the heating roller thermopile

• Defective heating roller thermopile

• Defective thermopile

1. Check if the heating roller thermopile is firmly connected.

2. Replace the heating roller thermopile.

542

A

Heating roller warm-up error 1

• The heating roller temperature does not reach 80°C for 20 seconds after the IH inverter turned on.

• The center temperature of the heating roller does not reach the ready temperature for 90 seconds after the IH inverter turned on.

• Dirty or defective thermopile

• Defective IH coil unit

1. Check if the heating roller thermopile is firmly connected.

2. Replace the thermopile.

3. Replace the IH coil unit.

543

A

Heating roller fusing lamp overheat 1 (software error)

The temperature detected by the heating roller thermopile stays at 230°C for 1 second.

• Defective PSU

• Defective IOB

• Defective BICU

Related SC code: SC 553

1. Replace the PSU.

2. Replace the IOB.

3. Replace the BICU.

544

A

Heating roller fusing lamp overheat 1 (hardware error)

During stand-by mode or a print job, the temperature detected by the heating roller thermopile reaches 250 °C.

• Defective PSU

• Defective IOB

• Defective BICU

• Defective fusing control system

Related SC code: SC 543

1. Replace the PSU.

2. Replace the IOB.

3. Replace the BICU.

545

A

Heating roller fusing lamp consecutive full power 1

When the fusing unit is not running in the ready condition, the heating roller fusing lamp keeps on full power for 8 seconds.

• Broken heating roller fusing lamp

Related SC code: SC 555

1. Replace the heating roller fusing lamp.

2. Replace the PSU.

547

D

Zero cross error

• The zero cross signal is detected three times even though the heater relay is off when turning on the main power.

• The zero cross signal is not detected for 2 seconds even though the heater relay is on after turning on the main power or closing the front door.

• The detection error occurs twice or more in the 11 zero cross signal detections. This error is defined when the detected zero cross signal is less than 45.

• Defective fusing lamp relay

• Defective fusing lamp relay circuit

• Unstable power supply

1. Check the power supply source.

2. Replace the PSU

551

A

Heating roller thermistor error

The temperature at the end of the heating roller measured by the heating roller thermistor does not reach 0°C for 7 seconds.

• Loose connection of pressure roller thermistor

• Defective heating roller thermistor

Related SC code: SC 541

1. Check that the heating roller thermistor is firmly connected.

2. Replace the heating roller thermistor.

552

A

Heating roller warm-up error 2

• The heating roller temperature does not reach 80°C for 20 seconds after the IH inverter on.

• The temperature at the end of the heating roller does not reach the ready temperature for 89 seconds after the IH inverter turned on.

• Defective heating roller thermistor

• Defective IH inverter

Related SC code: SC 542

1. Check if the heating roller thermistor is firmly connected.

2. Replace the IH inverter.

553

A

Heating roller fusing lamp overheat 2 (software error)

The temperature detected by the heating roller thermistor stays at 230°C or more for 1 second.

• Defective PSU

• Defective IOB

• Defective BICU

1. Replace the PSU.

2. Replace the IOB.

3. Replace the BICU.

554

A

Heating roller fusing lamp overheat 2 (hardware error)

The temperature detected by the heating roller thermistor reaches 250°C or more.

• Defective PSU

• Defective IOB

• Defective BICU

• Defective fusing control system

1. Replace the PSU.

2. Replace the IOB.

3. Replace the BICU.

555

A

Heating roller lamp consecutive full power 2

The heating roller-fusing lamp stays ON for 15 seconds or more while the fusing unit is in the ready condition.

• Broken heating roller fusing lamp

1. Replace the heating roller fusing lamp.

2. Replace the PSU.

557

C

Zero cross frequency error

When the zero cross signal is 66 or more and it is detected 10 times or more in 11 detections, the machine determines that input 60 Hz and SC557 occurs.

• Noise (High frequency)

• Defective PSU

1. Check the power supply source.

2. Replace the PSU.

559

A

Consecutive fusing jam

The paper jam counter for the fusing unit reaches 3 times. The paper jam counter is cleared if the paper is fed correctly.

This SC is activated only when SP1159-001 is set to "1" (default "0").

• Paper jam in the fusing unit.

Remove the paper that is jammed in the fusing unit. Then make sure that the fusing unit is clean and has no obstacles in the paper feed path.

561

A

Pressure roller thermistor error

The temperature detected by the pressure roller thermistor does not reach 0 °C for 20 seconds.

• Loose connection of the pressure roller thermistor

• Defective thermopile

• Defective pressure roller thermistor

1. Check if the pressure roller thermistor is firmly connected.

2. Replace the thermopile.

3. Replace the pressure roller thermistor.

563

A

Pressure roller overheat (software error)

The temperature detected by the pressure roller thermistor stays at 230°C or more for 1 second.

• Defective PSU

• Defective IOB

• Defective BICU

1. Replace the PSU.

2. Replace the IOB.

3. Replace the BICU.

564

A

Pressure roller overheat (hardware error)

The temperature detected by the pressure roller thermistor detects 250°C or more.

• Defective PSU

• Defective IOB

• Defective BICU

• Defective fusing control system

1. Replace the thermistor.

2. Replace the PSU.

3. Replace the IOB.

4. Replace the BICU.

565

A

Pressure roller fusing lamp consecutive full power

When the fusing unit is not running in the ready condition, the pressure roller fusing lamp keeps ON full power for 300 seconds or more.

• Broken pressure roller fusing lamp

• Defective pressure roller thermistor

1. Replace the pressure roller lamp.

2. Replace the pressure roller thermistor.

3. Replace the PSU.

569

D

Pressure roller contact sensor error

Pressure roller contact sensor does not detect the pressure roller position three times.

• Broken or defective pressure roller contact sensor

• Deformed or broken pressure roller contact sensor feeler

• Defective pressure roller contact motor

• Defective fusing unit

1. Check or replace the harness of the pressure roller contact sensor.

2. Replace the pressure roller contact sensor.

3. Replace the pressure roller contact motor.

571

A

Pressure roller thermistor error: Center

The temperature at the center of the pressure roller measured by the thermistor does not reach 0°C for 37 seconds.

• Loose connection of the thermistor

• Defective thermistor

1. Check if the thermistor is firmly connected.

2. Replace the center thermistor.

581

D

IH inverter input voltage error

The IH inverter detects 70 V or less/150 V or more for 10 seconds.

The IH inverter detects 160 V or less/300 V or more for 10 seconds.

• Unusual input voltage

• Defective IH inverter

1. Check if the power supply voltage of the customer site is within the proper power voltage range.

2. Check CN981 on the IH inverter.

3. Replace the IH inverter.

582

D

IH inverter current error at power on

The output current from the IH inverter does not reach the proper value when the IH inverter turns on.

• Disconnected power input terminal 1 and 2

• Defective IH inverter

• Defective IH coil unit

• Defective fusing unit

1. Check the power input terminals 1 and 2.

2. Replace the IH inverter.

3. Replace the IH coil unit.

4. Replace the fusing unit.

585

A

IH coil unit full power (1250W) error

The IH coil unit full power (1250W) continues for 200 seconds or more.

• Defective IH inverter

• Defective BICU

• Defective IOB

• Broken connection between IH inverter and IOB

• Defective thermopile

1. Replace the IH inverter.

2. Replace the BICU.

3. Replace the IOB.

4. Check the connection between IH inverter and IOB.

5. Replace the thermopile.