Xerox WorkCentre 7655
Troubleshooting. Image Quality. IQ06 Black Print RAP
The copy is printed completely black.
Procedure
| Procedure | Yes | No | |
|---|---|---|---|
| 1 | The problem occurs in both Copy mode and Print mode. | 7 | 2 |
| 2 | The problem only occurs in Copy mode only. | Go to Call Flow. | |
| 3 | Check that the IIT to IOT cable connection is fully seated. The cable connection is OK. | 4 | Reconnect the IIT to IOT cable. |
| 4 | Go to BSD 5.15 - Copy/Scan Image Input Processing (1 of 3). Check that the IIT/IPS PWB connectors are fully seated and free from damage. Turn OFF and ON. The problem reoccurs. | 5 | Go to Call Flow. |
| 5 | Check the mirrors on the Full Rate and Half Rate Carriages for alignment. The mirror are OK. | 6 | Install the mirror properly. |
| 6 | Replace the IIT/IPS PWB (PL 13.8). If the problem continues, replace the Lens Assembly (PL 13.6). | ||
| 7 | Ensure that each Drum Unit is installed and seated correctly.Turn the power OFF then ON. The problem reoccurs. | 8 | Go to Call Flow. |
| 8 | Go to BSD 9.21 - 1st Transfer (1 of 3), 1st BTR HVPS, BSD 9.8 - Black Charging And Exposure, Charge (K) Preclean HVPS, and BSD 9.9 - Charging And Exposure - Y,M,C, Charge (Y, M, C) HVPS. Check that the connectors are fully seated and the wires are free from damage. Turn the power OFF then ON. The problem reoccur | 9 | Go to Call Flow. |
| 9 | Go to BSD 6.1 - Yellow Laser Control, BSD 6.2 - Magenta Laser Control, BSD 6.3 - Cyan Laser Control, and BSD 6.4 - Black (K) Laser Control. Check that the connectors on each ROS Unit are fully seated and free of damage. Turn the power OFF then ON and print. The problem reoccurs. | 10 | Go to Call Flow. |
| 10 | Replace the MCU PWB (PL 11.1). If the problem continues, replace the CCM PWB (PL 11.7). |