Konica-Minolta bizhub C3351
Troubleshooting. Image Quality Problem. Printer monocolor 4
Printer monocolor: blurred image
Troubleshooting procedure
Step | Section | Check item | Result | Action |
---|---|---|---|---|
1 | PH unit | The surface of the PH window is dirty. | YES | Clean with cleaning jig. |
2 | Imaging unit | Dirty on the outside. | YES | Clean. |
3 | The problem has been eliminated through the checks of steps up to 2. | NO | • Replace the imaging unit. • Replace the PH unit. |
Printer: blank copy, black copy
Troubleshooting procedure
Step | Section | Check item | Result | Action |
---|---|---|---|---|
1 | Printhead | A blank copy occurs. | YES | Check printhead connector for proper connection. |
2 | Imaging unit | Coupling of imaging unit drive mechanism is installed properly. | NO | Check and correct drive transmitting coupling. |
Replace the imaging unit. | ||||
3 | The PC drum charge corona voltage contact or PC drum ground contact of the imaging unit is connected properly. | NO | Check, clean, or correct the contact. | |
4 | Power supply unit | Connector is connected properly. | NO | Reconnect. |
5 | The problem has been eliminated through the check of step 4. | NO | Replace the high voltage power supply. Replace the printer control board Replace the PH unit. Replace the MFP board. |
Printer monocolor: uneven image
Troubleshooting procedure
Step | Section | Check item | Result | Action |
---|---|---|---|---|
1 | Toner cartridge | The toner cartridge is surely installed. | NO | Re-install it. |
2 | Printhead | The printhead is surely installed. | NO | Re-install it. |
3 | Toner cartridge | There is any stain or breakage on the drive section of the toner cartridge. | YES | Clean/replace the toner cartridge. |
4 | Imaging unit | There is any stain, damage or abrasion on the PC drum. | YES | Replace the imaging unit. |
5 | Transfer roller | There is any stain, damage, deformation or abrasion on the transfer roller. | YES | Replace the transfer roller. |
6 | Fuser unit | There is any stain, damage, deformation or abrasion on the roller and drive section of the fuser unit. | YES | Replace the fuser unit. |
7 | The problem has been eliminated through the check of step 6. | NO | Replace the transfer belt unit. |