• Code: SC302
• Description: AC charge output error: C
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the AC charge for M, C, Y.
• Causes: • Disconnect the high voltage cable from Terminal C of the multiple high-voltage supply board. • Attach a voltmeter to the terminal. • If there is no output from the terminal, replace the high voltage power supply. -or- • If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is nearly "0", check the high-voltage harness for defects and replace it if necessary. • Test the conductivity between the OPC unit and the ground. If there is no conductivity between the OPC unit and ground, replace the OPC unit. • If there is no charge PWM signal, replace the harness and/or VBCU.

• Code: SC303
• Description: AC charge output error: Y
  An interrupt checks the status of the power pack every 10 ms. This SC is issued if the VBCU detects a short in the AC charge for M, C, Y.
• Causes: • Disconnect the high voltage cable from Terminal C of the multiple high-voltage supply board. • Attach a voltmeter to the terminal. • If there is no output from the terminal, replace the high voltage power supply. -or- • If there is output from the terminal, test the resistance between the high voltage cable and the ground. If resistance is nearly "0", check the high-voltage harness for defects and replace it if necessary. • Test the conductivity between the OPC unit and the ground. If there is no conductivity between the OPC unit and ground, replace the OPC unit. • If there is no charge PWM signal, replace the harness and/or VBCU.

• Code: SC304
• Description: Charge Corona Error: Charge Leak (K PCU)
  A abnormal detection signal (H) was detected for longer than 250 ms.
• Causes: • Turn the machine power off/on • CGB power pack harness connectors loose, broken, defective • Corona wire caps loose, missing • CGB power pack defective • Charge corona unit connectors loose, broken, defective

• Code: SC308
• Description: Charge Corona Error: Wire Cleaner Error (K PCU)
  The charge corona wire cleaner motor remained locked after the motor was switched on, or failed to switch off within the prescribed time after cleaning started.
• Causes: • Turn the machine power off/on • Motor overloaded due to a physical obstruction • Motor defective

• Code: SC313
• Description: Charge, development error: M
  After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
• Causes: • Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

• Code: SC314
• Description: Charge, development error: C
  After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
• Causes: • Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

• Code: SC315
• Description: Charge, development error: Y
  After the M, C, or Y drum started to rotate, the feedback for the charge unit of the color dropped below 0.3V.
• Causes: • Make sure that the settings of SP2202 are at the defaults. • Check harness connections between charge roller and transfer power pack. • Defective charge roller • Defective power pack

• Code: SC316
• Description: Drum Charge Error: K
  Drum charge output voltage (Vpp) exceeded 2.8 kV.
• Causes: • Check the connections of the charge unit of the PCU where the problem occurred. • Replace the charge unit of the PCU (CBG power pack for the K PCU, charge roller unit for YMC PCUs)