• Code: SC342
• Description: TD Sensor Error 3 (TD Sensor Adjustment Error)
  The TD sensor output voltage is not adjusted to 2.5 ± 0.1 V within 20 s during automatic TD sensor initial setting. NOTE: When an abnormal condition is detected, .0. is displayed for SP2906 (Vcont Manual Setting).
• Causes: • TD sensor defective • TD sensor harness defective • TD sensor connector defective • IOB defective • Toner supply defective; check the toner supply path from the toner bank through to the hopper • BCU defective

• Code: SC345
• Description: Development Bias Leak
  Maximum PWM for the development bias signal was applied 10 times for 60 ms.
• Causes: • CBG power pack defective • Defective or disconnected harness between CBG power pack and development unit • Defective harness connector

• Code: SC350
• Description: ID Sensor Error 1
  One of the following ID sensor output voltages was detected when checking the ID sensor pattern. 1)Vsp >= 2.5 V 2)Vsp = 0 V NOTE: 1) Vsp is the ID sensor output after checking the ID sensor pattern image. 2) The SC code is not displayed; only the logging data is incremented. 3) Regarding toner supply, if an abnormal condition is detected, then only the toner density sensor output is used, without an updated Vref setting. 4) After an abnormal condition is detected, SP3103 (ID Sensor Output Display) shows Vsp = Vsg (or 5.0V).
• Causes: • ID sensor defective • ID sensor harness defective • ID sensor connector defective • IOB board defective • LD unit defective • BCU defective • CBG power pack defective • Dirty ID sensor

• Code: SC351
• Description: ID Sensor Error 2
  One of the following conditions were detected when checking the ID sensor pattern: 1) Vsg <= 2.5 V 2) Vsg = 0 V 3) The ID sensor output voltage = 5.0 V and PWM signal input to ID sensor = 0 Vsg is the ID sensor output after checking the erased drum surface NOTE: 1) Vsp is the ID sensor output after checking the ID sensor pattern image. 2) The SC code is not displayed; only the logging data is incremented. 5) Regarding toner supply, if an abnormal condition is detected, then only the toner density sensor output is used, without an updated Vref setting. 6) After an abnormal condition is detected, SP3103 (ID Sensor Output Display) shows Vsp = Vsg (or 5.0V).
• Causes: • ID sensor defective • ID sensor harness defective • ID sensor connector defective • IOB defective • LD unit defective • BCU defective • CBG power pack defective • Dirty ID sensor

• Code: SC352
• Description: ID Sensor Error 3
  At the ID sensor pattern check, the ID sensor pattern edge voltage is not detected at 2.5 V for 1.5 seconds. NOTE: 1) Vsp is the ID sensor output after checking the ID sensor pattern image. 2) The SC code is not displayed; only the logging data is incremented. 3) Regarding toner supply, if an abnormal condition is detected, then only the toner density sensor output is used, without an updated Vref setting. 4) After an abnormal condition is detected, SP3103 (ID Sensor Output Display) shows Vsp = Vsg (or 5.0V).
• Causes: • ID sensor defective • ID sensor harness defective • ID sensor connector defective • IOB defective • LD unit defective • BCU defective • CBG power pack defective • Dirty ID sensor

• Code: SC353
• Description: ID Sensor Error 4 (Adjustment Error)
  One of the following ID sensor output voltages is detected at ID sensor initialization. 1) VSG < 4.0 V when the maximum PWM input (255) is applied to the ID sensor. 2) VSG >= 4.0 V when the minimum PWM input (0) is applied to the ID sensor. NOTE: 1) The most recent PWM value is used for control. 2) The values displayed with SP3103 (ID Sensor Output Display) are the actual values.
• Causes: • ID sensor defective • ID sensor harness defective • ID sensor connector defective • IOB defective • LD unit defective • BCU defective • CBG power pack defective • Dirty ID sensor

• Code: SC354
• Description: ID Sensor Error 5
  Vsg is not adjusted to target (4.0 +- 0.2 V) within 20 s during VSG checking. NOTE: 1) The most recent PWM value is used for control. 2) The values displayed with SP3103 (ID Sensor Output Display) are the actual values.
• Causes: • ID sensor defective • ID sensor connector defective • Poor ID sensor connector connection • IOB defective • LD unit defective • BCU defective • CBG power pack defective • Dirty ID sensor

• Code: SC355
• Description: ID Sensor Voltage Error
  The ID sensor voltage (Vp) exceeds 800 V for 10 continuous counts.
• Causes: • Drum potential sensor defective • IOB defective • Poor drum unit connection or connectors defective • Poor drum ground connection • LD defective • Poor drum cleaning ground connection • Drum worn • Dirty laser optics