Code :

Code: SC28-01
Description: A charge leak is detected. After a charge error detection signal is detected while in the charge ON, up to 5 charge ON/OFF operations occur in succession.
Causes: High voltage unit /1 (HV1) Charging/power feeding contact

Code: SC28-02
Description: A transfer leak is detected. After a transfer error detection signal is detected while in the transfer ON, up to 5 transfer ON/OFF operations occur in succession.
Causes: High voltage unit /2 (HV2) Transfer/separation charger Power feeding contact

Code: SC28-03
Description: A separation leak is detected. After a separation error detection signal is detected while in the separation ON, up to 5 separation ON/OFF operations occur in succession.
Causes: Toner control sensor board (TCSB) Printer control board (PRCB) High voltage unit /2 (HV2) Transfer/separation charger Power feeding contact ADU drive board (ADUDB) Wiring harness broken

Code: SC28-04
Description: The error detection signal (blowout of a 24V ICP) of the high voltage unit /2 (HV2) is detected.
Causes: Toner control sensor board (TCSB) Printer control board (PRCB) High voltage unit /2 (HV2) Transfer/separation charger Power feeding contact ADU drive board (ADUDB) Wiring harness broken

Code: SC29-01
Description: The dirt correction of the sensor is not completed. While in the maximum density correction, the dirt correction of the IDC sensor (IDCS) is not sufficient. When this condition is detected 10 times in succession, the error code is displayed.
Causes: Toner control sensor board (TCSB) Printer control board (PRCB) High voltage unit /2 (HV2) Transfer/separation charger Power feeding contact ADU drive board (ADUDB) Wiring harness broken

Code: SC29-02#
Description: The maximum density correction is not completed. While in the maximum density correction, the number of rotations of the developing roller gets to the maximum.
Causes: Toner control sensor board (TCSB) Printer control board (PRCB) Developing motor (M3) Write unit Overall control board (OACB)

Code: SC29-03#
Description: The IDC sensor (IDCS) output abnormality. While in the maximum density correction, a patch for control is not output. (No output is made from the IDCS.)
Causes: Toner control sensor board (TCSB) Printer control board (PRCB) Developing motor (M3) Write unit Overall control board (OACB)