Apple Color LaserWriter 12/600 PS - Manual (Page 160)

m If you are experiencing paper jams while using Apple Color LaserWriter
Transparencies loaded in the multipurpose tray, be sure you’ve placed the
transparencies properly. See the section “Placing Paper and Transparencies
in the Multipurpose Tray” in Chapter 9 of the Color LaserWriter 12/600 PS
User’s Manual.
Horizontal bands appear on the printed page.
When you print solid color images, you can expect some horizontal banding
(fine horizontal lines that are more obvious in solid color areas). To minimize
banding, try these steps:
m Banding typically appears when a new printer is first being used (typically
the first 500 to 1000 pages). Banding decreases through the break-in
period; however, some level of banding may still appear when printing
large areas of solid dark colors.
m Use a lighter background color, rather than dark.
m Replace the toner cartridge containing the associated color.
m Replace the photoconductor cartridge.
Oil spots appear on printed pages.
Oil spots can appear on pages when the oil reservoir inside the printer
overflows. Oil can spill inside the fuser assembly when the printer is not
level, or when the printer was transported improperly. If you see oil spots on
printed pages, try these steps:
m Be sure the printer is on a level surface. See Chapter 1 of this update for
more information on leveling the printer.
m Avoid powering the printer off and on frequently. Each time the printer
powers up, it cycles fuser oil through the oil reservoir. This can leave
excess oil on the print mechanism.
m If oil spots appear on your transparencies, try printing on a few pages of
paper before continuing to print on your transparencies.
146 Appendix B