HP 4650n HP Color LaserJet 4650 series printer - User Guide - Page 224
Print quality problems associated with the environment, Print quality troubleshooting s, MENUS - cleaning
UPC - 829160046532
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● Handle transparencies by the edges. Skin oil on the surface of transparencies can cause spots and smudges. ● Small, random dark areas on the trailing edge of solid fill pages may be caused by transparencies sticking together in the output bin. Try printing the job in smaller batches. ● The selected colors are undesirable when printed. Select different colors in the software application or printer driver. ● If you are using a reflective overhead projector, use a standard overhead projector instead. Print quality problems associated with the environment The printer is operating in excessively humid or dry conditions. Verify that the printing environment is within specifications. See Environmental specifications. Print quality problems associated with jams ● Make sure that all media is cleared from the paper path. See Paper jam recovery. ● The printer recently jammed. Print two to three pages to clean the printer. ● The media does not pass through the fuser causing image defects to appear on subsequent documents. Print two to three pages to clean the printer. However, if the problem persists see the next section. Print quality troubleshooting pages The print quality troubleshooting pages provide information on aspects of the printer that affect print quality. 1. Press MENU to enter the MENUS. 2. Press to highlight DIAGNOSTICS. 3. Press to select DIAGNOSTICS. 4. Press to highlight PQ TROUBLESHOOTING. 5. Press to select PQ TROUBLESHOOTING. The message Printing... PQ troubleshooting appears on the display until the printer finishes printing the print quality troubleshooting information. The printer returns to the Ready state after printing the print quality troubleshooting information. The print quality troubleshooting information includes one page for each color (cyan, magenta, yellow, and black), printer statistics related to print quality, instructions on interpreting the information, and procedures to solve print quality problems. If following the procedures recommended by the print quality troubleshooting pages do not improve print quality, go to http://www.hp.com/support/lj4650. 210 Chapter 8 Problem solving ENWW