• Code: 240
• Description: LD error
  Detecting two LD error flags in series when LD lighting after the LD initializing
• Causes: • Characteristic degradation of the LD (LD broken, electric current versus light output characteristic shift, etc)
  • Bad connection or disconnection of the harness to the LD
  • Defective the LD driver parts

• Code: 270
• Description: GAVE communication error
  Doesn't the value you set in a certain resister accord with the value of the same resister on reading.
• Causes: • Defective the BICU
  • Defective the GAVD, the CPU

• Code: 302
• Description: High-voltage charge error
  The maximum rate of PWM duty (50%) occurs ten times in series (20msec x 10) This error doesn’t happen when the front door (the inter lock) opens.
• Causes: • Defective the MD
  • Defective harness connected to the HVP

• Code: 355
• Description: P sensor error
  SC350~354 happen on normal operation. This error isn't displayed on panel but left on the history as a logging data.
• Causes: • Disconnection of the harness to P sensor
  • Bad electrical contact of P sensor CN
  • Defective the BICU
  • Defective the writing section
  • Defective developer density
  • Defective high-voltage PP
  • Uncleanness of the P sensor
  • Defective the P sensor

• Code: 389
• Description: T sensor error warning
  Detected the following value T sensor output value < 0.2V T sensor output value > 4.0V 10 times in series.
• Causes: • Defective the T sensor
  • Bad contact of the connector to the T sensor

• Code: 390
• Description: T sensor error
  After SC389 detection and executing SP2-992-001, This SC is displayed. In process flow, This SC occurs when two times of T sensor output value error are detected consecutively.
• Causes: • Defective T sensor
  • Loose connection part

• Code: 391
• Description: Development bias error
  The maximum rate of PWM duty (50%) occurs 10 times in series (20msec x 10) This error doesn’t happen when the front door (the inter lock) opens.
• Causes: • Defective the MD
  • Defective harness connected to the HVP

• Code: 392
• Description: Developer initialization error
  The P sensor does not detect a correct pattern during developer initialization (SP2-801-001). When Vsp output is more than 2.5V, SC appears in the case of not removing the heat seal or an absence of developer.
• Causes: • Defective P sensor
  • Defective T sensor
  • NOT removing heat-seal
  • Defective drum operation
  • Defective development roller operation