HP Pro 8500A Plus - A910g, Pro 8500A - A910a manual Copy quality is poor, Copy defects are apparent

Copy quality is poor

•Take steps to improve the copy quality

ƕUse quality originals.

ƕLoad the media correctly. If the media is loaded incorrectly, it might skew, causing unclear images. See Media specifications for more information.

ƕUse or make a carrier sheet to protect your originals.

•Check the printer

ƕThe scanner lid might not be closed correctly.

ƕThe scanner glass or lid backing might need cleaning. See Maintain the printer for more information.

ƕThe automatic document feeder (ADF) might need cleaning. See Maintain the printer for more information.

•Print a Print Quality Diagnostic Page. Check for nozzle health problems that can cause streaks, wrong colors, and other poor quality copy problems. For more information, see Printhead maintenance.

Copy defects are apparent

•Vertical white or faded stripes

The media might not meet Hewlett-Packard media specifications (for example, the media is too moist or too rough). See Media specifications for more information.

•Too light or dark

Try adjusting the contrast and copy-quality settings.

•Unwanted lines

The scanner glass, lid backing, or frame might need cleaning. See Maintain the printer for more information.

•Black dots or streaks

Ink, glue, correction fluid, or an unwanted substance might be on the scanner glass or lid backing. Try cleaning the printer. See Maintain the printer for more information.

•Copy is slanted or skewed

If you are using the automatic document feeder (ADF), check the following:

ƕMake sure that the ADF input tray is not too full.

ƕMake sure that the ADF width adjusters are snug against the sides of the media.

•Unclear text

ƕTry adjusting the contrast and copy-quality settings.

ƕThe default enhancement setting might not be suitable for the job. Check the setting and change it to enhance text or photographs, if needed. For more information, see Change copy settings.

•Incompletely filled text or graphics

Try adjusting the contrast and copy-quality settings.

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