Konica Minolta Print Quality

Blank Print
1. Faulty pc drum. Replace the Drum Cartridge.
2. Improper laser exposure. Replace the print head unit.
3. Poor developing bias. Replace the controller board.

Black Print
1. Improper laser exposure. Replace the print head.
2. Improper charging. Replace the controller board.
3. Replace the master board. (PWB-A)

White Spots
1. Damp paper. Change the paper.
2. Poor image transfer. Replace the second image transfer roller.
3. Replace the master board. (PWB-A)
4. Replace the transport image transfer belt unit.
5. Replace the controller control board.

Toner Smudge
1. Dirty fuser. Replace fuser.
2. Dirty image transfer roller. Replace the second image transfer roller.
3. Dirty paper transport path. Clean the paper transport path.

Low Image Density
1. No toner in cartridge. Replace toner cartridge.
2. Faulty pc drum. Replace drum cartridge.
3. Poor developing bias. Replace the master board. (PWB-A)
4. Poor image transfer. Replace the transport image belt unit.
5. Replace the controller control board.

Foggy Background
1. Poor developing bias. Replace the master board. (PWB-A)
2. Faulty pc drum. Replace the controller control board.
3. Replace the drum cartridge.

White/Black Lines and Bands
1. Scratched pc drum. Replace the drum cartridge.
2. Defective print head. Replace the print head.
3. Replace the master board. (PWB-A)
4. Replace the controller control board.

Offset Image
1. Defective fusing roller. Replace the fusing roller.
2. Faulty image transfer roller. Replace the second image transfer roller.
3. Replace the image transfer belt unit.