• Code: 354
• Description: ID Sensor Adjustment Error 2
  Error occurred during automatic adjustment of Vsg. Vsg could not be adjusted to 4.0V±0.2V within 50 ms even after 20 attempts.
• Causes: • ID sensor dirty or defective • ID sensor harness disconnected, or connector damaged • SBCU defective • High voltage power supply board (power pack) defective • Scanning system or image creation system malfunction

• Code: 355
• Description: ID sensor error
  For details about the cause of the problem, please refer to SC350-354 above.
• Causes: • ID sensor dirty or defective • ID sensor harness disconnected, or connector damaged • SBCU board defective • High voltage power supply board (power pack) defective • Scanning system or image creation system malfunction

• Code: 389
• Description: TD sensor error
  TD sensor output was less than 0.5V, or more than 0.5V 10 times in succession. If the fax unit is installed, this SC is issued immediately. If the fax unit is not installed, this SC is issued after the prescribed number of copies has printed.
• Causes: • TD sensor defective • TD sensor connector damaged.

• Code: 390
• Description: TD sensor error
  The TD sensor outputs less than 0.5V or more than 4.0V 10 times consecutively during copying. Note: • If the fax option is installed, this SC is issued immediately. • If the fax option is not installed, this SC is issued after the prescribed number of pages is copied.
• Causes: • TD sensor abnormal • Poor connection of the PCU

• Code: 391
• Description: Development bias leak
  A development bias leak signal is detected.
• Causes: • Poor connection at the PCU bias terminal • High voltage supply board defective

• Code: 392
• Description: TD sensor initial setting error
  Initialization of the new PCU unit failed. TD sensor output voltage fell out of the adjustment range (2.0 ± 0.2 V.
• Causes: • The PCU toner seal was not removed • ID sensor defective • TD sensor defective • Drum does not turn • Development roller does not turn

• Code: 398
• Description: PCU error South Korea only
  Illegal PCU unit.
• Causes: • Install the correct type of PCU.

• Code: 399
• Description: Illegal toner bottle South Korea only
  The toner bottle installed is not intended for use with this machine.
• Causes: • Install the correct type of toner bottle.