MAGICOLOR 2300 DL prints darkly a lot, sometimes correctly

[matthius]

I have a KONICA MINOLTA MAGICOLOR 2300DL. When it prints since UBUNTU 11.04, the document seems to be filtered darkly most of time, so the printed document is darkly printed.

Also the driver does not install automatically because i think that there are two lines like KONICA and KONICA MINOLTA in the drivers' list.

On version 12.10 of UBUNTU, now dark chars and grayscale pictures are well printed, not colored pictures.