Code :

Code: C-2804
Description: The dirt correction of the IDC sensor is not completed.
Causes: • Toner control board (TCB) • Printer control board (PRCB)
Remedy: 1. Check TCB, and clean it with alcohol if there is IDC sensor dirt or any abnormality. (Wiring diagram: Main body (3/4): 18-I) Be sure to clean TCB with alcohol, otherwise replacement of TCB is required. 2. Check the developing section, and clean/repair it if there is any dirt or abnormality. 3. Check the connector connection and the wiring between PRCB and TCB, and repair it if any abnormality. 4. Replace TCB. 5. Replace PRCB.

Code: C-2807
Description: Drum potential sensor (DPS) output abnormality 1. The DPS detects the value less than the potential specified value of the unexposed part 5 times in succession.
Causes: • Drum potential sensor (DPS) • Drum potential sensor board (DPSB) • Printer control board (PRCB)
Remedy: 1. Check the DPS, and clean/replace it if any abnormality or dirt on sensor (Wiring diagram: Main body (3/4): 19-J) 2. Check the connector connection and the wiring between PRCB and DPS, and repair it if any abnormality. 3. Replace DPS. 4. Replace DPSB. 5. Replace PRCB.

Code: C-2808
Description: Dot diameter correction abnormality. While in the dot diameter correction, the correction is terminated with an abnormal value.
Causes: • Drum potential sensor (DPS) • Drum potential sensor board (DPSB) • Image processing board (IPB) • Printer control board (PRCB) • Overall control board (OACB)
Remedy: 1. Check the DPS, and clean/replace it if any abnormality or dirt on sensor (Wiring diagram: Main body (3/4): 19-J) 2. Check the connector connection and the wiring between PRCB and OACB, and repair it if any abnormality. 3. Check the connector connection and the wiring between OACB and IPB, and repair it if any abnormality. 4. Replace DPS. 5. Replace DPSB. 6. Replace IPB. 7. Replace PRCB.

Code: C-2809
Description: Drum potential sensor (DPS) output abnormality 2. While in the 0V check of the DPS, more than 100V of the drum surface potential is detected more than 5 times. When this condition is detected 5 times in succession, the error code is displayed.
Causes: • Drum potential sensor (DPS) • Drum potential sensor board (DPSB) • Printer control board (PRCB)
Remedy: 1. Check the DPS, and clean/replace it if any abnormality or dirt on sensor (Wiring diagram: Main body (3/4): 19-J) 2. Check the connector connection and the wiring between PRCB and DPS, and repair it if any abnormality. 3. Replace DPS. 4. Replace DPSB. 5. Replace PRCB.

Code: C-2810
Description: Drum potential sensor (DPS) output abnormality 3. While in the drum potential correction, a patch for control is not output with the V1 getting to more than 350V. When this condition is detected 5 times in succession, the error code is displayed.
Causes: • Drum potential sensor (DPS) • Drum potential sensor board (DPSB) • Printer control board (PRCB)
Remedy: 1. Check the DPS, and clean/replace it if any abnormality or dirt on sensor (Wiring diagram: Main body (3/4): 19-J) 2. Check the connector connection and the wiring between PRCB and DPS, and repair it if any abnormality. 3. Replace DPS. 4. Replace DPSB. 5. Replace PRCB.

Code: C-2811
Description: Drum potential sensor (DPS) data abnormality. While in the drum potential correction, no convergence is obtained even after correction is made more than 10 times. When this condition is detected 5 times in succession, the error code is displayed.
Causes: • Drum potential sensor (DPS) • Drum potential sensor board (DPSB) • Printer control board (PRCB)
Remedy: 1. Check the DPS, and clean/replace it if any abnormality or dirt on sensor (Wiring diagram: Main body (3/4): 19-J) 2. Check the connector connection and the wiring between PRCB and DPS, and repair it if any abnormality. 3. Replace DPS. 4. Replace DPSB. 5. Replace PRCB.

Code: C-2812
Description: Transfer current auto adjustment abnormality. The auto adjustment of the transfer current has not completed.
Causes: • Transfer roller • High voltage unit /2 (HV2)
Remedy: 1. Check the transfer roller section, and clean/repair it if there is sensor dirt or any abnormality. 2. Clean the power feed section for the transfer roller. 3. Check the connector connection and the wiring between HV2 and the power feed section, and repair/replace it if any abnormality. (Wiring diagram: Main body (2/4): 3-N) 4. Replace HV2.

Code: C-2815
Description: Developing bias auto adjustment abnormality. The auto adjustment of the developing bias has not completed.
Causes: • Developer • High voltage unit /1 (HV1)
Remedy: 1. Clean the power feed section for the developing sleeve. 2. Check the developer, and clean/repair it if there is any adhesion or abnormality. 3. Check the connector connection and the wiring between HV1 and the developing sleeve, and repair it if any abnormality. (Wiring diagram: Main body (3/4): 22-K). 4. Replace HV1.