out” “Drum life low” warns the user that the imaging drum has only about 20% of its life remaining. This should allow the user time to order a replacement imaging drum kit before “drum life out.” The user can continue to operate the HP Color LaserJet 8500/8550 printer until “drum life out” occurs, at which point the printer will not operate. The user should be advised that: Drum life specification assumes two-page jobs, one-sided printing on letter- and A4-sized pages. When printing in color, the number of pages will be one-fourth of the images printed. Color printing uses four images per page even if only one color is actually used.
The imaging drum is a relatively small contributor to the overall printing cost. EN Printer consumables 125