HP 1320 Service Manual - Page 177

Table 7-8. Solving print image-quality problems (continued) The printed page has a gray background. Cause The print density setting is too high. The media basis weight is too high. The humidity level is too low. The print cartridge is worn or damaged. Solution Decrease the amount of background shading through the device configuration utility. Change the media to a lower basis weight. Very low humidity can increase the amount of background shading. Move the printer to a different location, or decrease the background shading through the device configuration utility. Replace the print cartridge. Toner smears appear on the printed page. Cause If the toner smears appear on the leading edge of the media, the media guides are dirty. The media you are using does not meet HP's specifications (for example, it is too moist or too rough). The print cartridge is worn or damaged. The pressure roller in the fuser is damaged. The fuser temperature is too low. Solution Wipe the media guides with a dry, lint-free cloth. Make sure that the media meets specifications detailed in the HP LaserJet Printer Family Media Guide. Replace the print cartridge. Replace the fuser (see Fuser). Select Type is: in the Paper/Quality tab of the printer driver. Make sure that it is set for the appropriate media. If the problem persists, replace the fuser (see Fuser). ENWW Image troubleshooting 165