SC900 (Engine: Others)

SC940-01

D

Toner supply motor (K) defective

SC940-02

D

Toner supply motor (C) defective

SC940-03

D

Toner supply motor (M) defective

SC940-04

D

Toner supply motor (Y) defective

Toner supply motor connector missing, disconnection

Toner supply motor harness get caught.

Toner supply motor malfunction, or the driver of the toner supply motor is defective.

• Reconnect the connectors.
• Replace the imaging IOB (PCB2).

SC940-50

C

Key counter device defective

When the key counter is ON, the value of the register of the key counter set detection signal is zero three times in a row.

The driver of the key counter device is defective.

Replace the BICU, the imaging IOB (PCB2), or the paper transport IOB (PCB1).

SC940-81

D

Load SW1: Overcurrent detection

The load SW has detected and limited overcurrent.

• Short circuit on the BICU board.

• Short circuit in the TM/ID sensor

• Short circuit on the synchronizing detector board

• Short circuit in the harness connected to the TM/ID sensor or synchronizing detector board

1. Turn the main power switch OFF, and disconnect the CN106 and CN587 connectors on BICU. Then turn the main power ON again.
   If started normally:
   

   The 3.3V L of an item (harness or electrical component) connected to one of the abovementioned connectors may be short-circuited. To determine which component has failed, press the connectors one at a time and then turn the power off and then back on. Then replace the harness or failed component.

   If SC-940-81 occurs repeatedly:

   Replace the BICU.
   

SC940-82

D

Load SW2: Overcurrent detection

The load SW has detected and limited overcurrent.

Short-circuit of the following units:

• Paper Transport IOB (PCB1)
• Paper exit/Pressure release motor (M4) or its harness
• Transport motor (M5) or its harness
• Paper feed motor (M6) or its harness
• Registration motor (M7) or its harness
• Paper feed sensor (2nd Feed Tray) (S22) or its harness
• Transport sensor (2nd Feed Tray) (S23) or its harness
• Paper end sensor (2nd feed tray) (S24) or its harness
• Upper Limit sensor (2nd feed tray) (S25) or its harness
• Paper feed sensor (1st Feed Tray) (S12) or its harness
• Transport sensor (1st Feed Tray) (S13) or its harness
• Paper end sensor (1st feed tray) (S14) or its harness
• Upper Limit sensor (1st feed tray) (S15) or its harness
• PTR open/close LED (LED1) or its harness
• Fusing entrance sensor (S1) or its harness
• PTR open/close sensor (S2) or its harness
• Duplex entrance motor (M1)  or its harness

• Bypass/duplex motor(M2) or its harness

• Duplex entrance sensor (S5) or its harness

• Bypass length sensor (S7) or its harness
• Reverse sensor (S9) or its harness
• Paper exit sensor (S10) or its harness
• Paper exit full sensor (S11) or its harness
• Pressure roller HP sensor (S26) or its harness

1. Turn the main power switch OFF, and disconnect the CN177, CN156, CN176, CN157, CN158, CN159, CN161, CN162, CN166 connectors on the paper transport IOB (PCB1). Then turn the main power ON again.

If started normally:

The 5V IO of an item (harness or electrical component) connected to one of the abovementioned connectors may be short-circuited. To determine which component has failed, press the connectors one at a time and then turn the power off and then back on. Then replace the harness or failed component.

If SC-940-82 occurs repeatedly:

Replace the paper transport IOB (PCB1).

SC940-83

D

Load SW3: Overcurrent detection

The load SW has detected and limited overcurrent.

Short-circuit of the following units:

• Imaging IOB (PCB2)
• Waste toner bottle full sensor (S34) or its harness
• ITB contact and release sensor (S32) or its harness
• Toner end sensor (S28)(S29)(S30)(S31) or its harness

1. Turn the main power switch OFF, and disconnect the CN201, CN205 connectors on the imaging IOB (PCB2). Then turn the main power ON again.
   

   If started normally:

   The 5V IO of an item (harness or electrical component) connected to one of the abovementioned connectors may be short-circuited. To determine which component has failed, press the connectors one at a time and then turn the power off and then back on. Then replace the harness or failed component.

   If SC-940-83 occurs repeatedly:
   Replace the imaging IOB (PCB2).

SC995-01

D

CPM setting error 1

Comparison of machine serial number (11 digits) and machine identification code.

Details:

• Machine serial number cannot be identified because of BICU replacement or malfunctioning.
• Machine serial number cannot be identified because of NV-RAM replacement

Machine serial number (11 digits) or machine identification code does not match.

• Enter the machine serial number using SP5-811(MachineSerial), and then turn the power on/off.
• Attach the NV-RAM that was installed previously.

SC995-02

D

CPM setting error 2

Comparison of machine serial number (11 digits) and machine identification code.

Details:

Machine serial number cannot be identified because of NV-RAM replacement or malfunctioning.

Machine serial number (11 digits) or machine identification code does not match.

• Attach the NV-RAM that was installed previously.
• Download data on the NV-RAM using SP5-825 (NV-RAM Data Download).

SC995-03

D

CPM setting error 3

Comparison of machine serial number (11 digits) and machine identification code.

Details:

Unable to recognize machine identification code because the controller was replaced incorrectly or is malfunctioning.

Machine serial number (11 digits) or machine identification code does not match.

Replace it with a specified controller.

SC995-04

D

CPM setting error 4

Comparison of machine serial number (11 digits) and machine identification code.

Machine serial number (11 digits) or machine identification code does not match.

Return the parts to the original configuration, and then replace them according to the manual.