• Code: 314
• Description: Potential sensor calibration error 4
  During drum potential sensor calibration when adjusting the drum potential (VH) for LD power adjustment, the first time the VH pattern is made, the drum potential sensor detects that VH is more than 500V: VH > –500 + VL + 130 V
• Causes: Potential sensor defective Potential sensor harness disconnected Potential sensor connector defective or disconnected IOB defective OPC connector defective LD defective

• Code: 315
• Description: Potential sensor calibration error 5
  During drum potential sensor calibration, when –100V is applied to the drum, the output value is out of the prescribed range.
• Causes: • Potential sensor defective • Potential sensor harness disconnected • Potential sensor connector defective or disconnected • IOB defective • OPC connector defective • Development power pack defective

• Code: 316
• Description: Potential sensor calibration error 6
  During drum potential sensor calibration, when –800V is applied to the drum, the output value is out of the prescribed range.
• Causes: • Potential sensor defective • Potential sensor harness disconnected • Potential sensor connector defective or disconnected • IOB defective • OPC connector defective • Development power pack defective

• Code: 317
• Description: Potential sensor calibration error 7
  During drum potential sensor calibration, when VL is adjusted, the pattern surface potential VL pattern is not within range 0V –400V. (VL is the potential after exposing a white pattern.)
• Causes: • Potential sensor defective • Potential sensor harness disconnected • Potential sensor connector defective or disconnected • IOB defective • OPC connector defective • Charge corona power pack defective • Development power pack defective

• Code: 340
• Description: TD sensor output error
  TD sensor output voltage (Vt), measured during each copy cycle, is detected 10 times at one of the following levels: Vt = 0.5 volts or lower Vt = 4.0 volts or higher
• Causes: • TD sensor defective • TD sensor harness disconnected • TD sensor connector disconnected or defective • IOB defective • Toner bottle motor defective • Note: When the TD sensor is defective, the toner supply is controlled using pixel count and the ID sensor.

• Code: 341
• Description: TD sensor adjustment error 1
  During the TD sensor auto adjustment, the TD sensor output voltage (Vt) is 2.5 volts or higher even though the control voltage is set to the minimum value (PWM = 0). When this error occurs, SP2-906-1 reads 0.00V. Note: This SC is released only after correct adjustment of the TD sensor has been achieved. Switching the machine off and on will cancel the SC display, but does not release ID sensor toner supply.
• Causes: • TD sensor defective • TD sensor harness disconnected • TD sensor connector disconnected or defective • IOB defective • Toner bottle motor defective • Note: When the TD sensor is defective, the toner supply is controlled using pixel count and the ID sensor.

• Code: 342
• Description: TD sensor adjustment error 2 During the TD sensor auto adjustment, the TD sensor output voltage (Vt) does not enter the target range (3.0 +- 0.1V) within 20 s. When this error occurs, the display of SP2-906-1 reads 0.00V. Note: This SC is released only after correct adjustment of the TD sensor has been achieved. Switching the machine off and on will cancel the SC display, but does not release ID sensor toner supply.
• Causes: • TD sensor defective • TD sensor harness disconnected • TD sensor connector disconnected or defective • IOB defective

• Code: 345
• Description: Development output abnormal
  The high voltage applied to the development unit is detected 10 times higher than the upper limit (45%) of PWM.
• Causes: • Development power pack defective • Development bias leak due to poor connection, defective connector