SC500 (Engine: Paper transport 1: Paper Feed, Duplex, and Transport)

SC501-00

B

1st Tray (Tandem Tray) Feed Error

One of the following occurred at the start of the job:

• The 1st Pickup Roller Lift Sensor does not switch on 10 s after the tray lift motor switches on and starts lifting the bottom plate.

• The 1st Pickup Roller Lift Sensor was on before the pick-up solenoid switched on.

• When the tray lowered, the 1st Pickup Roller Lift Sensor did not go off within 1.5 sec.

• The paper end sensor of the tandem tray did not detect the lower limit within 10 sec.

Note: Another paper tray cannot be used until the problem is resolved.

• Tray 1 Lift Motor harness disconnected or broken

• Paper or other obstacle trapped between tray and motor

• Pick-up solenoid disconnected or broken

• Paper or other obstacle blocking operation of pick-up solenoid

• Turn the main power off/on.

SC502-00

B

2nd Tray (Universal Cassette) Feed Error

One of the following occurred at the start of the job:

• The 2nd Pickup Roller Lift Sensor does not switch on 10 s after the tray lift motor switches on and starts lifting the bottom plate.

• The 2nd Pickup Roller Lift Sensor was on before the pick-up solenoid switched on.

• When the tray lowered, the 2nd Pickup Roller Lift Sensor did not go off within 1.5 sec.

• The paper end sensor of the tandem tray did not detect the lower limit within 10 sec.

Note: Another paper tray cannot be used until the problem is resolved.

• Tray 2 Lift Motor harness disconnected or broken

• Paper or other obstacle trapped between tray and motor

• Pick-up solenoid disconnected or broken

• Paper or other obstacle blocking operation of pick-up solenoid

• Turn the main power off/on.

SC503-01

B

A3 LCIT: 1st Tray (Top Tray): Upper Limit Detection Error

SC504-01

B

A3 LCIT: 2^nd Tray (Middle Tray): Upper Limit Detection Error

SC505-01

B

A3 LCIT: 3^rd Tray (Bottom Tray) : Upper Limit Detection Error

The following status was detected 3 times consecutively: The lift sensor did not become on before pick-up solenoid is on at the start of tray initialization.

• Pick-up Solenoid defective/ Connector disconnected

• Lift Sensor defective/ Connector disconnected

• Related harness broken

• Main Control Board defective

• Replace the Pick-up Solenoid.

• Reconnect the Pick-up Solenoid connector.

• Replace the Lift Sensor

• Reconnect the Lift Sensor connector.

• Replace the corresponding harness.

• Replace the Main Control Board.

SC503-02

B

A3 LCIT: 1st Tray (Top Tray): Upper Limit Detection Error

SC504-02

B

A3 LCIT: 2^nd Tray (Middle Tray): Upper Limit Detection Error

SC505-02

B

A3 LCIT: 3^rd Tray (Bottom Tray) : Upper Limit Detection Error

During Tray initialization, the tray bottom plate was lifted but the lift sensor did not detect it after a specified time (8 seconds).

• Lift Motor defective

• Connector disconnected

• lift sensor defective

• connector disconnected

• Related harness broken

• Main Control Board defective

• Replace the Lift Motor

• Reconnect the Lift Motor connection.

• Replace the Lift Sensor.

• Reconnect the Lift Sensor connection.

• Replace the corresponding harness.

• Replace the Main Control Board.

SC505-12

B

Vacuum Feed LCIT 1 : 1st Tray Error : Lift timeout

• Lift motor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC503-13

B

Vacuum Feed LCIT 1: 1st Tray Error (Lowering Timeout)

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the upper limit detection solenoid (if vacuum feed banner sheet tray is installed).

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC503-14

B

Vacuum Feed LCIT 1: 1st Tray Error (Paper overload error)

• Paper overload

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• Lower Limit Sensor defective/disconnected (If vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected (If vacuum feed banner sheet tray is installed)

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace or reconnect the Lower Limit Sensor (If vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor (If vacuum feed banner sheet tray is installed).

• Replace the broken harness.

• Replace the PCB.

SC503-15

B

Vacuum Feed LCIT 1: 1st Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC503-16

B

Vacuum Feed LCIT 1: 1st Tray Error (Separation Front Fan error)

SC503-17

B

Vacuum Feed LCIT 1: 1st Tray Error (Separation Rear Fan error)

SC503-18

B

Vacuum Feed LCIT 1: 1st Tray Error (Float Fan error)

SC503-19

B

Vacuum Feed LCIT 1: 1st Tray Error (Separation Fan error)

SC503-20

B

Vacuum Feed LCIT 1: 1st Tray Error (Suction Fan 1 error)

SC503-21

B

Vacuum Feed LCIT 1: 1st Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC503-22

C

Vacuum Feed LCIT 1: 1st Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC503-23

C

Vacuum Feed LCIT 1: 1st Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC503-24

B

Vacuum Feed LCIT 1: 1st Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC504-12

B

Vacuum Feed LCIT 2: 2nd Tray Error (Lifting Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Lower Limit Sensor or the Paper Height Middle Sensor does not become OFF 8 seconds after the lift motor started.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Upper Limit Sensor 1 or 2 does not become ON 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC504-13

B

Vacuum Feed LCIT 1: 2nd Tray Error (Lowering Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Upper Limit Sensor 1 or 2 was ON and the Lower Limit Sensor was OFF and the lift motor started lowering the plate but the Upper Limit Sensor 1 or 2 is still ON 8 seconds after the lift motor started.

• During tray initialization, the Upper Limit Sensor 1 or 2 was OFF and both Lower Limit Sensor and the Paper Height Middle Sensor were OFF and the lift motor started lowering the plate but both the Lower Limit Sensor and the Paper Height Middle Sensor are still OFF 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC504-14

B

Vacuum Feed LCIT 1: 2nd Tray Error (Paper overload error)

During tray initialization, the Upper Limit Sensor 1 or 2 and the Lower Limit Sensor were both ON 5 times consecutively.

• Paper overload

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC504-15

B

Vacuum Feed LCIT 1: 2nd Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC504-16

B

Vacuum Feed LCIT 1: 2nd Tray Error (Separation Front Fan error)

SC504-17

B

Vacuum Feed LCIT 1: 2nd Tray Error (Separation Rear Fan error)

SC504-18

B

Vacuum Feed LCIT 1: 2nd Tray Error (Float Fan error)

SC504-19

B

Vacuum Feed LCIT 1: 2nd Tray Error (Separation Fan error)

SC504-20

B

Vacuum Feed LCIT 1: 2nd Tray Error (Suction Fan 1 error)

SC504-21

B

Vacuum Feed LCIT 1: 2nd Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC504-22

C

Vacuum Feed LCIT 1: 2nd Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC504-23

C

Vacuum Feed LCIT 1: 2nd Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC504-24

B

Vacuum Feed LCIT 1: 2nd Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC505-12

B

Vacuum Feed LCIT 2: 1st Tray Error (Lifting Timeout)

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC505-13

B

Vacuum Feed LCIT 2: 1st Tray Error (Lowering Timeout)

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the upper limit detection solenoid (if vacuum feed banner sheet tray is installed).

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC505-14

B

Vacuum Feed LCIT 2: 1st Tray Error (Paper overload error)

• Paper overload

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• Lower Limit Sensor defective/disconnected (If vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected (If vacuum feed banner sheet tray is installed)

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace or reconnect the Lower Limit Sensor (If vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor (If vacuum feed banner sheet tray is installed).

• Replace the broken harness.

• Replace the PCB.

SC505-15

B

Vacuum Feed LCIT 2: 1st Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC505-16

B

Vacuum Feed LCIT 2: 1st Tray Error (Separation Front Fan error)

SC505-17

B

Vacuum Feed LCIT 2: 1st Tray Error (Separation Rear Fan error)

SC505-18

B

Vacuum Feed LCIT 2: 1st Tray Error (Float Fan error)

SC505-19

B

Vacuum Feed LCIT 2: 1st Tray Error (Separation Fan error)

SC505-20

B

Vacuum Feed LCIT 2: 1st Tray Error (Suction Fan 1 error)

SC505-21

B

Vacuum Feed LCIT 2: 1st Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC505-22

C

Vacuum Feed LCIT 2: 1st Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC505-23

C

Vacuum Feed LCIT 2: 1st Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC505-24

B

Vacuum Feed LCIT 2: 1st Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC506-12

B

Vacuum Feed LCIT 2: 2nd Tray Error (Lifting Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Lower Limit Sensor or the Paper Height Middle Sensor does not become OFF 8 seconds after the lift motor started.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Upper Limit Sensor 1 or 2 does not become ON 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC506-13

B

Vacuum Feed LCIT 2: 2nd Tray Error (Lowering Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Upper Limit Sensor 1 or 2 was ON and the Lower Limit Sensor was OFF and the lift motor started lowering the plate but the Upper Limit Sensor 1 or 2 is still ON 8 seconds after the lift motor started.

• During tray initialization, the Upper Limit Sensor 1 or 2 was OFF and both Lower Limit Sensor and the Paper Height Middle Sensor were OFF and the lift motor started lowering the plate but both the Lower Limit Sensor and the Paper Height Middle Sensor are still OFF 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC506-14

B

Vacuum Feed LCIT 2: 2nd Tray Error (Paper overload error)

During tray initialization, the Upper Limit Sensor 1 or 2 and the Lower Limit Sensor were both ON 5 times consecutively.

• Paper overload

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC506-15

B

Vacuum Feed LCIT 2: 2nd Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC506-16

B

Vacuum Feed LCIT 2: 2nd Tray Error (Separation Front Fan error)

SC506-17

B

Vacuum Feed LCIT 2: 2nd Tray Error (Separation Rear Fan error)

SC506-18

B

Vacuum Feed LCIT 2: 2nd Tray Error (Float Fan error)

SC506-19

B

Vacuum Feed LCIT 2: 2nd Tray Error (Separation Fan error)

SC506-20

B

Vacuum Feed LCIT 2: 2nd Tray Error (Suction Fan 1 error)

SC506-21

B

Vacuum Feed LCIT 2: 2nd Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC506-22

C

Vacuum Feed LCIT 2: 2nd Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC506-23

C

Vacuum Feed LCIT 2: 2nd Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC506-24

B

Vacuum Feed LCIT 2: 2nd Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC507-00

C

Tandem Tray Rear Fence Motor Error (1st Tray)

• During Tandem control, Rear Fence Return Sensor or Rear Fence HP Sensor does not switch on within 10 s after the Rear Fence Drive Motor is turned on.

• Rear Fence HP Sensor and Rear Fence Return Sensor switch on simultaneously.

• Rear Fence Drive Motor defective, connector disconnected

• Paper or other foreign object is caught in the sensor (Rear Fence Return Sensor, Rear Fence HP Sensor).

• Paper or other foreign object is caught between the Tray and Rear Fence Drive Motor.

• Mechanical factors result in heavy load and there is no operation or slow operation.

• Sensor (Rear Fence Return Sensor, Rear Fence HP Sensor) defective

Reset the Tandem Tray.

SC507-12

B

Vacuum Feed LCIT 3: 1st Tray Error (Lifting Timeout)

• Lift motor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC507-13

B

Vacuum Feed LCIT 3: 1st Tray Error (Lowering Timeout)

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected (if vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor (if vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the upper limit detection solenoid (if vacuum feed banner sheet tray is installed).

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC507-14

B

Vacuum Feed LCIT 3: 1st Tray Error (Paper overload error)

• Paper overload

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• Lower Limit Sensor defective/disconnected (If vacuum feed banner sheet tray is not installed)

• Paper Height Middle Sensor defective/disconnected (If vacuum feed banner sheet tray is installed)

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace or reconnect the Lower Limit Sensor (If vacuum feed banner sheet tray is not installed).

• Replace or reconnect the Paper Height Middle Sensor (If vacuum feed banner sheet tray is installed).

• Replace the broken harness.

• Replace the PCB.

SC507-15

B

Vacuum Feed LCIT 3: 1st Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC507-16

B

Vacuum Feed LCIT 3: 1st Tray Error (Separation Front Fan error)

SC507-17

B

Vacuum Feed LCIT 3: 1st Tray Error (Separation Rear Fan error)

SC507-18

B

Vacuum Feed LCIT 3: 1st Tray Error (Float Fan error)

SC507-19

B

Vacuum Feed LCIT 3: 1st Tray Error (Separation Fan error)

SC507-20

B

Vacuum Feed LCIT 3: 1st Tray Error (Suction Fan 1 error)

SC507-21

B

Vacuum Feed LCIT 3: 1st Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC507-22

C

Vacuum Feed LCIT 3: 1st Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC507-23

C

Vacuum Feed LCIT 3: 1st Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC507-24

B

Vacuum Feed LCIT 3: 1st Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC508-12

B

Vacuum Feed LCIT 3: 2nd Tray Error (Lifting Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Lower Limit Sensor or the Paper Height Middle Sensor does not become OFF 8 seconds after the lift motor started.

• During tray initialization, the Lower Limit Sensor or the Paper Height Middle Sensor was ON and the lift motor started lifting the plate but the Upper Limit Sensor 1 or 2 does not become ON 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC508-13

B

Vacuum Feed LCIT 3: 2nd Tray Error (Lowering Timeout)

Either of the following conditions has been detected 5 times consecutively in total.

• During tray initialization, the Upper Limit Sensor 1 or 2 was ON and the Lower Limit Sensor was OFF and the lift motor started lowering the plate but the Upper Limit Sensor 1 or 2 is still ON 8 seconds after the lift motor started.

• During tray initialization, the Upper Limit Sensor 1 or 2 was OFF and both Lower Limit Sensor and the Paper Height Middle Sensor were OFF and the lift motor started lowering the plate but both the Lower Limit Sensor and the Paper Height Middle Sensor are still OFF 40 seconds after the lift motor started.

• Lift motor defective/disconnected

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC508-14

B

Vacuum Feed LCIT 3: 2nd Tray Error (Paper overload error)

During tray initialization, the Upper Limit Sensor 1 or 2 and the Lower Limit Sensor were both ON 5 times consecutively.

• Paper overload

• Lower Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Reduce the number of sheets of paper loaded in the tray.

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC508-15

B

Vacuum Feed LCIT 3: 2nd Tray Error (Bottom plate ascending too much)

The tray is set and the Over Limit Sensor detected that the bottom plate ascended too much.

• Over Limit Sensor defective/disconnected

• Upper Limit Sensor 1 defective/disconnected

• Upper Limit Sensor 2 defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Over Limit Sensor.

• Replace or reconnect the Upper Limit Sensor 1.

• Replace or reconnect the Upper Limit Sensor 2.

• Replace the broken harness.

• Replace the PCB.

SC508-16

B

Vacuum Feed LCIT 3: 2nd Tray Error (Separation Front Fan error)

SC508-17

B

Vacuum Feed LCIT 3: 2nd Tray Error (Separation Rear Fan error)

SC508-18

B

Vacuum Feed LCIT 3: 2nd Tray Error (Float Fan error)

SC508-19

B

Vacuum Feed LCIT 3: 2nd Tray Error (Separation Fan error)

SC508-20

B

Vacuum Feed LCIT 3: 2nd Tray Error (Suction Fan 1 error)

SC508-21

B

Vacuum Feed LCIT 3: 2nd Tray Error (Suction Fan 2 error)

During operation of the corresponding fan, rotation of the fan was not detected for 1 second (Fans are always monitored during operation).

• Fan defective/disconnected

• Harness to the corresponding fan is broken.

• PCB defective

• Replace or reconnect the fan.

• Replace the broken harness.

• Replace the PCB.

SC508-22

C

Vacuum Feed LCIT 3: 2nd Tray Error (Paper Height Middle Sensor or Lower Limit Sensor error)

• During bottom plate ascension, the encoder count after Lower Limit Sensor OFF exceeded 70 but the Paper Height Middle Sensor does not become ON.

• During tray initialization, both the Lower Limit Sensor and the Paper Height Middle Sensor were ON for 100 msec.

• Lower Limit Sensor defective/disconnected

• Paper Height Middle Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lower Limit Sensor.

• Replace or reconnect the Paper Height Middle Sensor.

• Replace the broken harness.

• Replace the PCB.

SC508-23

C

Vacuum Feed LCIT 3: 2nd Tray Error (Paper Height Sub Sensor error)

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lifting the plate.

• During tray initialization, the status of the Paper Height Sub Sensor does not change within 3 seconds after the lift motor starts lowering the plate.

• Lift motor defective/disconnected

• Paper Height Sub Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift motor.

• Replace or reconnect the Paper Height Sub Sensor.

• Replace the broken harness.

• Replace the PCB.

SC508-24

B

Vacuum Feed LCIT 3: 2nd Tray Error (Belt unit set error)

The Paper Feed Belt Unit is not set even though the tray is set.

• The Paper Feed Belt Unit is not properly set.

• Paper Feed Belt Unit connector defective or disconnected

• Harness broken

• PCB defective

• Set the Paper Feed Belt Unit.

• Replace or reconnect the Paper Feed Belt Unit connector.

• Replace the broken harness.

• Replace the PCB.

SC509-01

B

Bypass Tray Error (Upper Limit Detection Error)

The following status was detected 5 times consecutively at the beginning of tray initialization: the Upper Limit Sensor was OFF before Pickup Solenoid is ON.

• Pickup Solenoid defective or disconnected

• Upper Limit Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Pickup Solenoid.

• Replace or reconnect the Upper Limit Sensor.

• Replace the broken harness.

• Replace the PCB.

SC509-02

B

Bypass Tray Error (Lifting Timeout)

During tray initialization, the bottom plate was lifted but the Upper Limit Sensor does not become ON within 10 seconds.

• Lift Motor defective or disconnected

• Upper Limit Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift Motor.

• Replace or reconnect the Upper Limit Sensor.

• Replace the broken harness.

• Replace the PCB.

SC509-03

B

Bypass Tray Error (Lowering Timeout)

At Paper End, or when the Lift Switch was pressed with the bottom plate at the upper limit position, the bottom plate was lowered but the Lower Limit Sensor does not become ON within 10 seconds.

• Lift Motor defective or disconnected

• Lower Limit Sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the Lift Motor.

• Replace or reconnect the Lower Limit Sensor.

• Replace the broken harness.

• Replace the PCB.

SC511-01

B

Vacuum Feed LCIT 1: Lift Motor Error

SC511-02

B

Vacuum Feed LCIT 2: Lift Motor Error

SC511-03

B

Vacuum Feed LCIT 3: Lift Motor Error

• When the pressure release HP sensor is detecting "H (interception)", the Lift Motor is driven a specified number of pulses but the pressure release HP sensor is still detecting "H (interception)".

• When the pressure release HP sensor is detecting "L (transmission)", the Lift Motor is driven a specified number of pulses but the pressure release HP sensor is still detecting "L (transmission)".

• LCIT exit Lift Motor defective/disconnected

• Pressure release HP sensor defective/disconnected

• A harness to one of the parts listed above is broken.

• PCB defective

• Replace or reconnect the LCIT exit Lift Motor.

• Replace or reconnect the pressure release HP sensor

• Replace the broken harness.

• Replace the PCB.

SC513-00

D

Registration Gate Position Error

Home position on/off was not detected within the time limit.

• Gate Retract HP Sensor connector disconnected and defective

• Gate Retract HP Sensor disconnected and defective

• Defective operation due to overload

• Defective operation due to the motor driver defective

• Gate Retract HP Sensor shield deformed/broken/incorrectly attached

Cycle the machine off/on.

SC514-00

D

Registration Shift Position Error

Home position on/off was not detected within the time limit.

• Shift Unit Motor connector disconnected and defective

• Shift Unit HP Sensor connector disconnected and defective

• Defective operation due to overload

• Defective operation due to the motor driver defective

• Shift Unit HP Sensor shield deformed/broken/incorrectly attached

SC515-00

D

CIS cleaning fan Error

During fan lock detection

• Overload

• Fan stopped by foreign object

• Connector disconnected

• Reconnect the connector

• Replace the CIS Cleaning Fan

SC520-00

D

Fusing Motor Error

• Error at motor startup

  A lock signal was not detected for 1 second or longer after 1 second has passed from the motor START signal switching ON.

• Error during motor running normally

  A Lock signal was not detected for 1 second or longer during the motor START signal being output.

• Motor connector disconnected

• Abnormal increase in Fusing Roller torque (overload due to the bearing lock, etc.)

• Motor driver defective

• Reconnect the Fusing Motor connector

• Eliminate the overload in the Fuser Unit

• Replace the Fusing Motor

SC526-01

D

Grip Motor 1 (Tray 1) Rotation Error

SC526-02

D

Grip Motor 2 (Tray 2) Rotation Error

2 seconds after motor startup, the motor lock error signal (LOCK signal) was detected for 1200 msec or more.

• Grip Motor defective

• Harness broken

• Connector disconnect

• Replace the Grip Motor.

• Reconnect the connector.

SC527-01

D

Buffer Pass Unit: Cooling Fan Alarm 1

SC527-02

D

Buffer Pass Unit: Cooling Fan Alarm 2

SC527-03

D

Buffer Pass Unit: Cooling Fan Alarm 3

SC527-04

D

Buffer Pass Unit: Cooling Fan Alarm 4

SC527-05

D

Buffer Pass Unit: Exhaust Fan Alarm 1

SC527-06

D

Buffer Pass Unit: Exhaust Fan Alarm 2

SC527-07

D

Buffer Pass Unit: Exhaust Fan Alarm 3

SC527-08

D

Buffer Pass Unit: Exhaust Fan Alarm 4

Observe the Lock signal. If the Lock signal is not acquired continuously for 10 seconds (10 times), rotation is judged as abnormal.

Corresponding Buffer Pass Unit fan defective

Harness broken

Connector disconnect

Replace the defective Buffer Pass Unit fan.

Reconnect the connector.

SC530-00

D

Heat Sink Cooling Suction Fan Error

SC530-01

D

Heat Sink Cooling Exhaust Fan Error

SC531-00

D

Paper Cooling Intake Fan Error

SC531-01

D

Paper Cooling Exhaust Fan 1 Error

Paper Cooling Exhaust Fan 2 Error

The branch numbers for the Paper Cooling Exhaust Fan 1 Error and Paper Cooling Exhaust Fan 2 Error are the same. Therefore, if error SC531-01 occurs, perform visual inspection to determine the error source.

SC535-00

D

Belt Cooling Fan

SC535-01

D

Pressure Roller Cooling Fan Error

SC535-02

D

Main Unit Relay Fan Error

SC538-00

D

Controller Box Intake Fan 1 Error

SC538-01

D

Controller Box Intake Fan 2 Error

SC539-00

D

Development Unit Cooling Fan 1 Error

SC539-01

D

Development Unit Cooling Fan 2 Error

SC539-02

D

Development Unit Cooling Fan 3 Error

During fan lock detection

Fan stopped due to overload or foreign object

Connector disconnected.

Check the connector. Replace the defective fan.

SC541-00

A

Thermistor disconnection: Heating Roller Thermopile

Heating Roller Thermopile detected 0 degree or lower 50 seconds consecutively after the heater was turned on.

• Thermistor disconnection

• Connecter contact failure

• Replace the Heating Roller Thermopile.

• Reconnect the connector.

• Replace the fuser unit.

SC542-01

A

Reload Failure: Heating Roller Thermopile

Heating Roller Thermopile detected a temperature below 80 degrees 60 seconds consecutively after the heater was turned on.

• Thermistor deformed or floating

• Input voltage out of specification

• Replace the Heating Roller Thermopile

• Use within the input voltage specification.

• Replace the fuser unit.

• Replace the heater.

SC542-02

A

Reload Failure: Heating Roller Thermopile

180 seconds after start of heater control, Heating Roller Thermopile detected that temperature has not been reached for reload permission.

• After the operation of overheat prevention mechanism

• Heater broken

• Replace the Heating Roller Thermopile

• Use within the input voltage specification.

• Replace the heater.

• Replace the fuser unit.

SC543-00

A

Overheat detection (software): Heating Roller Thermopile

Heating Roller Thermopile detected a temperature of 255 degrees or higher continuously for 10 seconds or longer.

Measurement period: 100 milliseconds

• Triac shorted.

• IOB board defective.

• fuser unit controller software runaway

• Replace the IOB board.

• Replace the fuser unit.

SC544-00

A

Overheat detection (hardware): Heating Roller NC Sensor

Heating Roller NC Sensor detected 270 degrees or higher.

• Triac shorted.

• IOB board defective.

• Fuser unit controller software runaway

• -

SC545-01

SC545-02

A

Heater lit continuously : Heating Roller Fusing Lamps

The DUTY of heater was equal to the maximum DUTY (excluding 0%) for 90 seconds continuously after the heater was turned on during Ready status/preheating/low-power and the fuser unit stopped.

Excluded time: 300 seconds

The time it takes to reach the reload temperature/waiting target temperature at rated input -25% + heater tolerance is excluded (300 seconds).

• Thermistor deformed or floating

• Heater disconnection

• After the operation of overheat prevention mechanism

• Replace the Heating Roller Thermopile

• Replace the Heating Roller Fusing Lamps.

• Replace the Fuser Unit.

SC546-00

A

Thermistor disconnection: Heating Roller Thermistor

Heating Roller Thermistor detected 0 degree or lower 50 seconds consecutively after the heater was turned on

• Thermistor disconnection

• Connecter contact failure

• Replace the Heating Roller Thermistor

• Reconnect the connector.

• Replace the Fuser unit.

SC547-01

D

Zero Cross Error (Relay contact welded)

Fusing relay contact welded

• Fusing relay defective (contact welded)

• Fusing relay drive circuit defective

• Turn the main power off/on.

• If turning the main power switch off and on does not solve the problem:

  If the fusing relay is damaged, replace the AC control board.

SC547-02

D

Zero Cross Error (Relay contact defective)

Fusing relay contact defective

• Fusing relay defective (contact opened)

• Fusing relay drive circuit defective

• Turn the main power off/on.

• If turning the main power switch off and on does not solve the problem:

  If the fusing relay is damaged, replace the AC control board.

SC547-03

D

Zero Cross Error (low frequency error)

The AC power supply frequency is low or unstable.

• Unstable commercial power supply frequency

• Turn the main power off/on.

• If turning the main power switch off and on does not solve the problem:

  • Check the power supply line from the wall socket.

SC548-00

A

Software High Temperature Detection: Heating Roller Thermistor

Heating Roller Thermistor detected 255 degrees or higher 10 seconds consecutively.

Measurement period: 100 milliseconds

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• Replace the IOB board.

• Replace the Fuser Unit.

SC549-00

A

Hardware High Temperature Detection: Heating Roller Thermistor

Heating Roller Thermistor detected 260 degrees or higher.

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• -

SC550-01

D

Fuser Belt Smoothing Roller Motor Error

• Error at motor startup

  A lock signal was not detected for 2 second or longer after 1 second has passed from the motor START signal switching ON.

• Error during motor running normally

  A Lock signal was not detected for 2 second or longer during the motor START signal being output.

• Motor connector disconnected

• Abnormal increase in Fuser Belt Smoothing Roller torque (overload due to the bearing lock, etc.)

• Motor driver defective

-

SC551-00

A

Thermistor disconnection: Pressure Roller NC Sensor

Pressure Roller NC Sensor detected 0 degree or lower 75 seconds consecutively after the heater was turned on

• Thermistor disconnection

• Connecter contact failure

• Replace the Pressure Roller NC Sensor.

• Reconnect the connector.

• Replace the Fuser Unit.

SC552-01

A

Reload Failure: Pressure Roller NC Sensor

Pressure Roller NC Sensor detected a temperature below 45 degrees 75 seconds consecutively after the heater was turned on.

• Thermistor deformed or floating

• Input voltage out of specification

• Check for fusing lamp disconnection

• Replace the Pressure Roller NC Sensor

• Replace the Pressure Roller Thermostat

• Replace the Pressure Roller Fusing Lamp

SC552-02

A

Reload Failure: Pressure Roller NC Sensor

Reload temperature is not reached 190 seconds after motor control is started.

• Lamp disconnection

• After the operation of overheat prevention mechanism

• Check for fusing lamp disconnection

• Replace the Pressure Roller NC Sensor

• Replace the Pressure Roller Thermostat

• Replace the Pressure Roller Fusing Lamp

SC553-00

A

Overheat detection (software): Pressure Roller NC Sensor

Pressure Roller NC Sensor detected 220 degrees or higher 1 second consecutively.

Measurement period: 100 milliseconds

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• Replace the IOB board.

• Replace the Fuser Unit.

SC554-00

A

Overheat detection (hardware): Pressure Roller NC Sensor

Pressure Roller NC Sensor detected 230 degrees or higher.

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

-

SC555-00

A

Heater lit continuously: Pressure Roller Fusing Lamp

The DUTY of Pressure Roller Fusing Lamp was equal to the maximum DUTY (excluding 0%) for 80 seconds continuously after the heater was turned on during Ready status/preheating/low-power and the fuser unit stopped.

Excluded time: 100 seconds

The time it takes to reach the reload temperature/waiting target temperature at rated input -25% + heater tolerance is excluded (100 seconds).

• Thermistor deformed or floating

• Heater disconnection

• Overheating prevention device worked.

• Replace the Pressure Roller NC Sensor

• Replace the Pressure Roller Fusing Lamp

• Replace the Fuser Unit.

SC557-00

C

Zero Cross Error (high frequency)

The AC power supply frequency is high or unstable.

Unstable commercial power supply frequency, noise

Check the frequency of the commercial power supply line

SC558-00

C

Fuser Belt Smoothing Roller Contact Error Detection

“Separationpressure contact /pressure contact separation” control performed incorrectly 3 times consecutively is detected.

• Fuser Belt Smoothing Roller Contact Motor defective

• Fuser Belt Smoothing Roller Contact Sensor defective

• Feeler deformed/damaged

• Contact mechanism damaged

• Replace the Fuser Belt Smoothing Roller Contact Motor.

• Replace the Fuser Belt Smoothing Roller Contact Sensor

• Replace the Feeler of Fuser Belt Smoothing Roller Contact Sensor.

• Replace the fuser unit.

SC559-00

A

Fusing jam: 3 counts

Fusing jam (fusing exit sensor late jam) was detected 3 times consecutively.

• Each occurrence of a fusing jam is counted and SC559-00 is issued when the count reaches 3.

• The fusing jam counter is not reset even if the machine is turned off and on.

This SC can be set ON/OFF. The factory setting is OFF; set it ON when requested by the customer.

SP1-142-001:

0: OFF (factory setting)

1: ON (set by service personnel at the request of customer)

Fuser Unit defective

Enter the SP mode and clear SP5-810-001, and then cycle the machine off/on. If the problem is not solved, do the following:

• Check the Fuser Belt Stripper, Pressure Roller Stripper, Fuser Unit Exit Sensor, Accordion Jam Sensor

  Check the fusing belt stripper plate, pressure roller stripper pawls, and fusing exit sensor.

• If you can identify the defective parts, replace the fuser belt stripper, pressure roller striper, fuser unit exit sensor or accordion jam sensor individually.

• If you cannot identify the defective parts, replace the fuser unit.

SC561-00

A

Thermistor disconnection: Heating Roller NC Sensor

Heating Roller NC Sensor detected 0 degree or lower 35 seconds consecutively after the heater was turned on

• Thermistor disconnection

• Connecter contact failure

• Replace the Heating Roller NC Sensor.

• Reconnect the connector

• Replace the unit.

SC562-01

A

Reload Failure: Heating Roller Thermistor

Heating Roller Thermistor detected failure to reach the reload target temperature (-40 degrees) 120 seconds after motor control is started.

• Thermistor deformed or floating

• Input voltage out of specification

• Replace the Heating Roller Thermistor

• Use within the input voltage specification.

• Replace the fusing lamp.

• Replace the Fuser Unit.

SC563-00

A

Overheat detection (software): Heating Roller NC Sensor

Heating Roller NC Sensor detected 255 degrees or higher 10 seconds consecutively.

Measurement period: 100 milliseconds

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• Replace the IOB board.

• Replace the Fuser Unit.

SC564-00

A

Overheat detection (hardware): Heating Roller NC Sensor

Heating Roller NC Sensor detected 270 degrees or higher.

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• Replace the triac.

• Replace the IOB board.

• Replace the Fuser Unit.

SC565-00

A

Heater lit continuously: Heating Roller Fusing Lamp

The DUTY of heater was equal to the maximum DUTY (excluding 0%) for 25 seconds continuously after the heater was turned on during Ready status/preheating/low-power and the fuser unit stopped.

Excluded time: 85 seconds

The time it takes to reach the reload temperature/waiting target temperature at rated input -25% + heater tolerance is excluded (85 seconds).

• Thermistor deformed or floating

• Heater disconnection

• After the operation of overheat prevention mechanism

• Replace the sensor.

• Replace the Heating Roller Fusing Lamp.

• Replace the fuser unit.

SC569-01

SC569-02

SC569-03

D

Pressure Release Error: Pressure Roller Cam Position Sensors (A / B)

• SC569-01

  Pressure release/Home position/control failed 3 times consecutively.

• SC569-02

  Failure for pressure release control is detected (SC occurs even once).

• SC569-03

  Pressure release sensor B shows High.

• Pressure release motor defective

• Pressure release sensor defective

• Pressure release mechanism defective

• SC569-01/-02

  Replace the pressure roller lift motor.

  Replace the Pressure Roller Cam Position Sensors.

  Replace the feeler.

  Replace the Fuser Unit.

• SC569-03

  Replace the Fuser Unit.

  Replace the Pressure Roller Cam Position Sensors.

  Reconnect the sensor connector.

SC570

Fan Error

SC570-00

D

Ozone Exhaust Fan (K)

SC570-01

D

Ozone Exhaust Fan (C)

SC570-02

D

Ozone Exhaust Fan (M)

SC570-03

D

Ozone Exhaust Fan (Y)

SC570-04

D

Ozone Exhaust Fan (S)

SC570-05

D

Controller Box Ozone Collecting Fan

During fan lock detection

• Overload

• Fan stopped due to foreign object

• Connecter disconnected.

Reconnect the connector, or replace the fan

SC571-00

A

Thermistor disconnection: Pressure Roller Thermistor

Pressure Roller Thermistor detected 0 degree or lower 120 seconds consecutively after the heater was turned on

• Pressure Roller Thermistor disconnection

• Connecter contact failure

• Replace the Pressure Roller Thermistor.

• Reconnect the connector.

• Replace the Fuser Unit.

SC573-00

A

Overheat detection (software): Pressure Roller Thermistor

Pressure Roller Thermistor detected 220 degrees or higher 10 seconds consecutively.

Measurement period: 100 milliseconds

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

• Replace the IOB board.

• Replace the Fuser Unit.

SC574-00

A

Overheat detection (hardware): Pressure Roller Thermistor

Pressure Roller Thermistor detected 230 degrees or higher.

• Triac shorted.

• IOB board defective.

• Fuser Unit controller software runaway

-

SC576-00

A

Thermistor disconnection: Fusing Roller NC Sensor

Fusing Roller NC Sensor detected 0 degree or lower 35 seconds consecutively after the heater was turned on

• Fusing Roller NC Sensor disconnection

• Connecter contact failure

• Replace the Fusing Roller NC Sensor

• Reconnect the connectors

• Replace the Fuser Unit.

SC580-01

D

Temperature Decrease Detection: Heating Roller Thermopile

Disconnection during paper feed

The thermopile 1 detected -10 degrees less than target temperature after correction continuously for 150 seconds or longer after inspection start trigger (A).

Removal time: 50 seconds (excludes removal time)

• Replace the fusing lamp.

• Replace the Heating Roller Thermopile.

• Replace the Fuser Unit.

SC581-01

D

Secondary Power Cord Not Connected

The main power cord is connected but the secondary power cord is not connected.

• The secondary power cord is not connected.

• Circuit breaker is off.

• Harness broken

• AC drive/IOB defective.

• Turn the machine off and plug in the secondary power cord again.

• Check that the circuit breaker is on. If off, turn it on.

• Replace the harness.

• Replace the AC drive/IOB.

SC582

Fan Error

SC582-00

D

Rear Box Exhaust Fan

SC582-01

D

Rear Box Heat Sink Collecting Fan

SC583-00

D

Transport/Fusing Exhaust Fan

SC583-01

D

Feed Motor Cooling Fan

SC584-00

D

Rear Box Ozone Exhaust Fan

SC585-00

D

Fusing Exit Exhaust Fan

SC585-01

D

Paper Exit Guide Cooling Fan

SC592-00

D

PSU Cooling Fan 1

SC592-01

D

PSU Cooling Fan 2

SC592-02

D

PSU Cooling Fan 3

SC596-00

D

Controller Box Exhaust Fan (Bottom)

SC596-01

D

Controller Box Exhaust Fan (Top Left)

SC596-02

D

Controller Box Exhaust Fan (Top Right)

SC596-03

D

Air Box Exhaust Fan (Bottom)

SC596-04

D

Air Box Exhaust Fan (Top)

During fan lock detection

• Overloaded

• Fan stopped due to foreign object

• Connector disconnected

• Reconnect the connector.

• Replace the fan.

SC586

Stepper Motor Error

SC586-10

D

Vertical Transport Motor

SC586-11

D

Bank Exit Sensor

SC586-12

D

Tray 1 Paper Feed Motor

SC586-13

D

Tray 2 Paper Feed Motor

SC586-14

D

Tray 1 Grip Motor

SC586-15

D

Tray 2 Grip Motor

SC586-20

D

Registration Timing Motor

SC586-21

D

Shift Roller Motor

SC586-22

D

Duplex Transport Motor 2

SC586-23

D

Registration Entrance Motor

SC586-24

D

Registration Gate Motor

SC586-25

D

Shift Unit Motor

SC586-30

D

Duplex Transport Motor 1

SC586-31

D

Invert/Duplex Motor

SC586-32

D

Exit Relay Motor

SC586-33

D

Invert/Exit Motor

SC586-40

D

Decurl Motor

SC586-41

D

Decurler Paper Transport Motor

• Detection period: 100 ms

• SC if error detected 2 times consecutively

• Driver overheating protection

• Stepper Motor harness broken.

• Stepper Motor shorted.

• Harness disconnected.

• Reconnect the connectors.

• Replace the Stepper Motor.

• Replace the harnesses.

• Replace the PCB.

Replace the following boards.

• -10 to 15: PFB

• -20 to 25: DRB

• -30 to 33: TDCU

• -40, -41: DDRB

SC587-00

C

Main Unit Temperature Sensor Error

When errors are detected 3 times consecutively during 1-minute periods, it is judged that an error has occurred and SC is issued.

• -10 degrees or lower is detected for the measurement temperature of the main unit temperature sensor.

• 80 degrees or higher is detected for the measurement temperature of the main unit temperature sensor.

• Connector disconnected or broken

• Thermistor defective.

• Connector disconnected or broken

  Reconnect the connector.

• Sensor defective

  Replace the sensor.

SC587-01

C

Heat Pipe Temperature Sensor Error

When errors are detected 3 times consecutively during 1-minute periods, it is judged that an error has occurred and SC is issued.

However, detection starts after the power is turned on and permission has been given to use SP.

• -10 degrees or lower is detected for the measurement temperature of the main unit temperature sensor.

• 80 degrees or higher is detected for the measurement temperature of the main unit temperature sensor.

• Connector disconnected or broken

• Thermistor defective

• Connector disconnected or broken

  Reconnect the connector.

• Sensor defective

  Replace the sensor.

SC589-01

D

Toner Bottle Motor Error (Driver Error Detection):K

SC589-02

D

Toner Bottle Motor Error (Driver Error Detection):C

SC589-03

D

Toner Bottle Motor Error (Driver Error Detection):M

SC589-04

D

Toner Bottle Motor Error (Driver Error Detection):Y

The driver error detection signal for the Toner Bottle Cap Motor and Toner Bottle Motor errors is monitored at 100ms intervals. When errors are detected 3 times consecutively, it is judged that an error has occurred and SC is issued. It is not possible to differentiate between Toner Bottle Cap Motor and Toner Bottle Motor errors.

• 175 degrees (typical) or higher

• Specified current is 4us (typical) or higher

• When an error is detected at 175 degrees (typical) or higher: automatic restart at 150 degrees (typical) or lower

• When an error is detected at specified current of 4us (typical) or higher: restart by switching 24V or 5V OFF/ON

SC590-00

D

Exit Motor Error

1000ms after starting the motor, “Lock Signal: Low” was not detected 10 times consecutively during the time until the motor stop signal is received.

• Motor connector disconnected

• Abnormal increase in the Exit Roller torque (overload due to the bearing lock, etc.)

• Motor driver malfunctioning

• Exit Motor malfunctioning

• Reconnect the motor connector

• Eliminate the cause of overload in the exit unit.

• Replace the motor driver.

• Replace the Exit Motor.

SC591-00

C

Double-feed Sensor Error

The senor output voltage was not within the appropriate range despite trying 3 times or more during LED light correction for the Double-feed Sensor.

• Double-feed Sensor harness broken, connector disconnected

• Paper or other foreign object is caught between the light emitter and receiver of the Double-feed Sensor.

• Double-feed Sensor dirty due to paper dust or other foreign objects

• Removal processing is not necessary.

• After SC detection, although the double-feed detection function cannot be used, the machine can be operated normally.

• For details about SC-951-00, Refer to Recovering SC591-00

SC593-00

D

Decurler Over Limit

Decurler Limit Sensor is detected as on.

• HP misdetection

• Decurler HP Sensor loose/damaged

• Decurler Limit Sensor loose/damaged

Cycle the machine off/on.

SC594-00

D

Decurler HP Sensor Error

During decurler HP detection, even after 6 sec passes, Decurler HP Sensor on/off is not detected.

Decurler HP Sensor defective or disconnected

Cycle the machine off/on.

SC595-32

D

TDCU Hardware Error

STM driver IC error has been detected. Always monitored except when a cover is open.

• Connector disconnected

• Harness disconnection or shorted.

• Belt Centering Motor defective(motor coil broken or shorted)

• PCB defective

• Reconnect the connectors between the Belt Centering Motor and TDRB (including relay connectors).

• For connectors on the motor side, the SC is issued only when a connector is half-connected (1 phase open).

• Replace a connector between the Belt Centering Motor and TDRB (including relay connectors).

• Replace the Belt Centering Motor

• Replace the TDRB.

SC597

Motor Error

SC597-10

D

Tray 1 Lift Motor Error

SC597-11

D

Tray 2 Lift Motor Error

SC597-12

D

Rear Fence Drive Motor Error

SC597-50

D

Toner Pump Motor YM Error

SC597-51

D

Toner Pump Motor CK Error

SC597-52

D

Toner Pump Motor S Error

• Detection period:100ms

• SC is issued if error is detected 2 times consecutively.

• Driver overheat protection operation

• Driver excessive voltage protection operation

• Motor shorted/layer shorted

• Check that the connector is connected.

• Replace the motor where SC occurred.

• Replace the harnesses.

• Replace the board.

Replace the following boards.

• -10 to -12: PFB

• -50 to -52: IOB

SC598-00

D

Development Unit Coolant Pump Error

• Time overflow detected.

• Pump defective

• Connector disconnected

• Pump rotation slowed because of high viscosity

• Reconnect (In case of a disconnected connector).

• Replace the Development Unit Coolant Pump.

SC599-00

D

Coolant Remaining Switch Error

• The Coolant Remaining Switch detected the voltage more than the upper threshold or less than the lower threshold.

• When errors are detected 10 times consecutively during 1 second periods, it is judged that an error has occurred and SC is issued.

• Proper amount of liquid does not exist.

• Connecter disconnected or broken.

• IOB board defective.

• Harness shorted.

• Liquid remaining quantity decreased (leak exists)

  If it is possible to repair the leakage location, perform repairs and then refill the liquid.

  If it is not possible to repair the leakage location, replace the main unit.

• Liquid remaining quantity decreased (no leak)

  Refill the liquid.

• Coolant Remaining Switch connector disconnected/ harness broken

  Reconnect the connector.

• Coolant Remaining Switch defective

  Replace the Coolant Remaining Switch.

• IOB board defective

  Replace the IOB.

• Harness shorted

  Replace the harness.