Description: Secondary transfer roller pressure welding alienation.3 PS43 I/O check, sensor check PRCB CN25-11 (ON) C-12 4 PS44 I/O check, sensor check PRCB CN25-14 (ON) C-12 5 M15 operation check PRCB CN8-1 to 2 C-12 6 Change drum unit /K - 7 Change M15 - 8 Change PRCB 2 Check the M15 connector for proper connection and correct as necessary.

Remedy: 1 Check the drum unit/K for proper connection and correct as necessary.Causes: Drum unit /K Charging cleaner home sensor (PS43) Charging cleaner return sensor (PS44) Charge cleaning motor/K (M15) Printer control board (PRCB).During backward movement of the cleaner, the charging cleaner home sensor is not blocked after a predetermined period of time has elapsed.Description: PC charge cleaning malfunction.3 PS7 I/O check, sensor check FSCB PJ16-3 (ON) FS-527 J-5 4 M8 operation check FSCB PJ9-4 (REM) FS-527 J-2 5 Change M8 - 6 Change FSCB

2 Check the connector of M8 for proper drive coupling, and correct as necessary.

Remedy: 1 Check the motor and sensor connectors for proper connection, and correct as necessary.

Causes: Tray1 path switching motor (M8) Tray1 path switching home sensor (PS7) FS control board (FSCB).

The tray1 path switching home sensor (PS7) is turned neither ON nor OFF even after the set period of time has elapsed after the tray1 path switching motor (M8) is turned ON.

Description: Tray1 path switching motor drive malfunction.

3 PS26 I/O check, sensor check FSCB PJ21-9 (ON) FS-527 J-2 4 M6 operation check FSCB PJ9-1 (REM) FS-527 J-2 5 Change M6 - 6 Change FSCB 2 Check the connector of M6 for proper drive coupling, and correct as necessary.

Causes: Upper lower path switching motor (M6) Upper lower path switching sensor (PS26) FS control board (FSCB).

The upper lower path switching sensor (PS26) is turned neither ON nor OFF even after the set period of time has elapsed after the upper lower path switching motor (M6) is turned ON.

Description: Upper lower path switching motor drive malfunction.

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