HP 3390 Service Manual - Page 238

Problem Toner appears around the printed characters. Cause Solution Air pockets inside envelopes can cause Remove the envelope, flatten it, and try them to wrinkle. printing again. The media might be loaded incorrectly. Turn over the stack of paper in the tray. If large amounts of toner have scattered Use a different paper, such as high- around the characters, the paper might quality paper that is intended for laser have high resistivity. printers. An image that appears at the top of the page (in solid black) repeats farther down the page (in a gray field). Software settings might affect image printing. In your software program, change the tone (darkness) of the field in which the repeated image appears. In your software program, rotate the whole page 180° to print the lighter image first. The order of images printed might affect printing. Change the order in which the images are printed. For example, have the lighter image at the top of the page, and the darker image farther down the page. A power surge might have affected the all-in-one. If the defect occurs later in a print job, turn the all-in-one off for 10 minutes, and then turn on the all-in-one to restart the print job. Droplets of water are deposited on the trailing edge of the page. Moisture in the all-in-one is condensing on the fuser assembly. In excessively hot and humid areas, media retains moisture. Try moving the all-in-one to a less humid area. Try a different media. NOTE Water droplets do not damage the all-in-one. 216 Chapter 6 Troubleshooting ENWW