• Code: 307-00
• Description: Charge grid circuit open When high voltage goes to the corona grid, feedback voltage is more than the set value 9 times. This feedback voltage is used to update PWM for output control.
• Causes: • Charge corona unit defective or disconnected • Charge corona harness defective • Charge corona power pack is defective.

• Code: 320-01
• 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

• Code: 324-01
• Description: Development motor lock The development motor lock signal remains high for 2 seconds while the development motor is on.
• Causes: If this SC is returned on a machine in the field, inspect the toner supply unit coil. If the gear is not damaged, replace the coil. If the gear is damaged, the gear shaft is probably deformed, so replace the entire unit. • Drive mechanism overloaded due to toner clumping in the wasted toner path • Motor driver board defective

• Code: 360-01
• Description: TD sensor adjustment error: Adjustment output abnormal 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: 360-11
• Description: TD sensor adjustment error: Timeout Error 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: 361-00
• Description: TD sensor output error: Upper Limit TD sensor output voltage (Vt), measured during each copy cycle, is detected higher than 4V for 10 prints.
• 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: 362-00
• Description: TD sensor output error: Lower limit TD sensor output voltage (Vt), measured during each copy cycle, is detected 10 times lower than 0.5V.
• 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: 370-0
• Description: ID sensor adjustment error: LED output abnormal One of the following ID sensor output voltages is detected at ID sensor initialization. • Vsg less than 4.0V when the maximum PWM input (255) is applied to the ID sensor. • Vsg greater than or equal to 4.0V when the minimum PWM input (0) is applied to the ID sensor.
• Causes: • ID sensor defective • ID sensor harness disconnected • ID sensor connector defective • IOB defective • ID sensor pattern not written correctly • Incorrect image density • Charge power pack defective • ID sensor dirty