Apple ColorLaserWriter 12/600PS - Manual (Page 263)

Stains appear on the back of a printed page.
Try these steps:
m Clean the separation discharger wire. (For instructions, see Chapter 10.)
m Clean the density sensor. (For instructions, see Chapter 10.)
m Try printing on a high-quality paper to see if that helps.
m The transfer cleaning brush may need to be replaced. Call an Apple-
authorized service provider.
Flakes of toner come off the printed page.
Try these steps:
m Make sure you removed the two orange spacers from the fuser area when
you unpacked and set up the printer. (For instructions, see Chapter 1.)
m Try printing on a high-quality paper to see if that helps.
m Replace the photoconductor cartridge.
m Call an Apple-authorized service provider.
240 Chapter 12