Service Manual 5-11White Portion of Print is ColoredColor on a print where no color should beprinted is often called a latent image. Alatent image remains on the drum when itshould have been transferred to its sheetof paper. An insufficient amount of oil onthe drum, provided by a dirty, defective,or old maintenance kit may be theproblem.Step Question and Actions1 Print using a smoother, quality paper. Some recycled paper brands may be too rough.Watermarked paper may also have this problem.2 Clean the maintenance kit wiper blade. If necessary, replace the maintenance kit.3 Clean the paper release blade.4 Print a Chase Page, see “28: Chase Pages” on page 34.5 The paper preheater may be contaminated with ink. Clean for ink smears using thefront panel troubleshooting function Remove Print Smears.6 Run diagnostics to ensure that printer temperatures are in tolerance. Inspect the drumthermistor. Clean or replace the drum thermistor if necessary.7 Dark rectangular marks on transparency film can be caused by an accumulation ofpaper dust and oil on the feed rollers. Run 2 or 3 sheets of blank paper through theprinter to clean the rollers or manually clean the rollers.8 Follow the instructions on the “Printhead Troubleshooting Checklist”.0388-69
