HP LaserJet Pro P1102 HP LaserJet Professional P1100 Series Printer - Service - Page 136

Dropouts Vertical lines Gray background Toner smear 118 Chapter 3 Solve problems ● A single sheet of paper might be defective. Try reprinting the job. ● The media moisture content is uneven or the paper has moist spots on its surface. Try printing with new paper. ● The paper lot is bad. The manufacturing processes can cause some areas to reject toner. Try a different type or brand of paper. ● The print cartridge might be defective. Install a new genuine HP print cartridge. ● Toner might be on the photosensitive drum. Print a few more pages to see if the problem might correct itself. ● The photosensitive drum inside the print cartridge has probably been scratched. Install a new genuine HP print cartridge. ● Change the paper to a lighter basis weight. ● Check the product environment. Very dry (low humidity) conditions can increase the amount of background shading. ● The density setting might be too high. Adjust the density setting. See Change print density on page 122 ● Install a new genuine HP print cartridge. ● If toner smears appear on the leading edge of the paper, the paper guides might be dirty. Wipe the paper guides with a dry, lint-free cloth. ● Check the paper type and quality. ● The fuser temperature might be too low. In the printer driver, make sure the appropriate paper type is selected. ● Try installing a new genuine HP print cartridge. ENWW