• Code: 0F52
• Description: Toner level sensor/Y malfunction An error occurs on the toner level sensor/Y.
• Causes: • Toner level sensor/Y (PS13) • Printer control board (PRCB)
• Remedy: 1 Check the connector between each sensor-PRCB CN21 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Replace PRCB.

• Code: 0F53
• Description: Toner level sensor/M malfunction An error occurs on the toner level sensor/M.
• Causes: • Toner level sensor/M (PS14) • Printer control board (PRCB)
• Remedy: 1 Check the connector between each sensor-PRCB CN21 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Replace PRCB.

• Code: 0F54
• Description: Toner level sensor/C malfunction An error occurs on the toner level sensor/C.
• Causes: • Toner level sensor/C (PS15) • Printer control board (PRCB)
• Remedy: 1 Check the connector between each sensor-PRCB CN21 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Replace PRCB.

• Code: 0F55
• Description: Toner level sensor/K malfunction An error occurs on the toner level sensor/K.
• Causes: • Toner level sensor/K (PS16) • Printer control board (PRCB)
• Remedy: 1 Check the connector between each sensor-PRCB CN21 for proper connection and correct as necessary. 2 Replace the toner level sensor of the corresponding color. 3 Replace PRCB.

• Code: 13C4
• Description: Imaging unit/C new article release. The status with the new unit is not cleared continuously for 3 times after the new imaging unit is set.
• Causes: • Imaging unit/C • Printer control board (PRCB)
• Remedy: 1 Reinstall the imaging unit. 2 Check the connector between imaging unit-PRCB CN221 for proper connection and correct as necessary. 3 Replace the imaging unit. 4 Replace PRCB.

• Code: 13C5
• Description: Imaging unit/M new article release. The status with the new unit is not cleared continuously for 3 times after the new imaging unit is set.
• Causes: • Imaging unit/M • Printer control board (PRCB)
• Remedy: 1 Reinstall the imaging unit. 2 Check the connector between imaging unit-PRCB CN221 for proper connection and correct as necessary. 3 Replace the imaging unit. 4 Replace PRCB.

• Code: 13C6
• Description: Imaging unit/Y new article release. The status with the new unit is not cleared continuously for 3 times after the new imaging unit is set.
• Causes: • Imaging unit/Y • Printer control board (PRCB)
• Remedy: 1 Reinstall the imaging unit. 2 Check the connector between imaging unit-PRCB CN221 for proper connection and correct as necessary. 3 Replace the imaging unit. 4 Replace PRCB.

• Code: 13C7
• Description: Imaging unit/K new article release. The status with the new unit is not cleared continuously for 3 times after the new imaging unit is set.
• Causes: • Imaging unit/K • Printer control board (PRCB)
• Remedy: 1 Reinstall the imaging unit. 2 Check the connector between imaging unit-PRCB CN221 for proper connection and correct as necessary. 3 Replace the imaging unit. 4 Replace PRCB.