HP 5550 User Guide - Page 224

Solving Problems with Printing Quality Symptom Cause Solution Nothing is One or more of the printed, or print units may be there are defective. blank spots The printer driver is on the not set correctly. printed page. Remove the print units and check it for damage. If it is damaged, replace it. Select the proper setting in the printer driver to switch from transparencies to plain paper. The media is moist from humidity. Adjust the humidity for media storage. Remove the moist media and replace it with new, dry media. The media set in the printer driver mismatches the media loaded in the printer. Load the correct media in the printer. The power source Use a power source with the proper does not match the specifications. printer specifications. Several sheets are Remove the media from the tray and being fed at the same check it for static electricity. Fan plain time. paper or other media (but not transpar- encies), and replace it in the tray. Media is not set prop- Remove the media, tap it to straighten erly in the tray(s). it out, return it to the tray, and realign the media guides. Entire sheet is printed in black or color. One or more of the print units may be defective. Remove the print units and check it for damage. If it is damaged, replace it. 210 Solving Problems with Printing Quality