Konica Minolta 2300 Service Manual page 169

Symptom
Toner smudges on back- Dirty fusing roller
side of paper
Dirty image transfer roller
Dirty paper transport path
0951o226
No toner in toner cartridge
Low image density
Faulty PC drum (end of service
life)
Poor developing bias
Poor image transfer
0951o214
Foggy background
Poor developing bias
Faulty PC drum (end of service
life)
0951o218
Cause
Replace the fusing roller.
Replace the Second image trans-
fer roller.
Clean the paper transport path.
Replace the toner cartridge.
Replace the drum cartridge.
Replace the master board (PWB-
A).
Replace the controller control
board.
Replace the Second image trans-
fer roller.
Replace the master board (PWB-
A).
Replace the transport image
transfer belt unit.
Replace the controller control
board.
Replace the master board (PWB-
A).
Replace the controller control
board.
Replace the drum cartridge.
169
Remedy