I am using the Konica Magicolor 7300 colour printer.
I have a problem with the printer using excessive amounts of toner. In paticular, it appears to be using a composite of colour toner to create monochrome prints, rather than simpler using the black toner.
I have updated all the firmware and drivers, and this seems to have no effect.
Konica Minolta have been exceptionally unhelpful about this, does anyone have any ideas?