158 Chapter 9 Image quality EN
Image formation troubleshooting
Before beginning image formation troubleshooting, check that the
media meets the specifications listed in the HP LaserJet Printer Family
Print Media Guide.
Print density test and color checks
Use the configuration page to check the print density of the black,
primary, and process color levels. Solid black- and color-filled areas on
the configuration page demonstrate the ability to print at full density.
In addition to the items listed above, the configuration page provides
the following information:
• It helps isolate the problem to the software or the printer.
• It shows that all colors print.
The following media-related items are responsible for many image
formation and print-quality defects:
• rough paper
• heavy paper
• transparencies out of the specified thickness range
• paper that has absorbed too much moisture from the atmosphere
• room environment (humidity too high or low)
Understanding color variations
The printed output might not match the computer screen, and the colors
printed on successive pages might not match. While color variations are
inherent in this printing method, they can indicate changes in the
printing environment, print media, or printer components.
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