HP Color LaserJet CM4730 Service Manual - Page 604
Overhead transparency defects, Print quality problems associated with the environment, Paper
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cause and solution Cause Solution NOTE: Several factors can influence your ability to match printed colors to those on your screen. These factors include print media, overhead lighting, software programs, operating system palettes, monitors, and video cards and drivers. Overhead transparency defects Overhead transparencies might display any of the image quality problems that any other type of media could display, as well as defects specific to transparencies. In addition, because transparencies are pliable while in the print path, they are subject to being marked by the mediahandling components. NOTE: Allow transparencies to cool at least 30 seconds before handling them. ● On the printer driver's Paper tab, select Transparency as the media type. Also, make sure that the tray is correctly configured for transparencies. ● Check that the transparencies meet the specifications for this MFP. ● 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 might 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 program 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 MFP is operating in excessively humid or dry conditions. Verify that the printing environment is within specifications. See Environmental specifications on page 826. Print quality problems associated with jams ● Make sure that all media is cleared from the paper path. ● The MFP recently jammed. Print two to three pages to clean the MFP. ● The media does not pass through the fuser causing image defects to appear on subsequent documents. Print two to three pages to clean the MFP. However, if the problem persists see the next section. 584 Chapter 6 Problem solving ENWW
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