HP Officejet Pro 8500A User Guide - Page 115

Copy quality is poor, Copy defects are apparent, Too light or dark

Page 115 highlights

Copy quality is poor • Take steps to improve the copy quality ƕ Use quality originals. ƕ Load the media correctly. If the media is loaded incorrectly, it might skew, causing unclear images. See Media specifications for more information. ƕ Use or make a carrier sheet to protect your originals. • Check the printer ƕ The scanner lid might not be closed correctly. ƕ The scanner glass or lid backing might need cleaning. See Maintain the printer for more information. ƕ The 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: ƕ Make sure that the ADF input tray is not too full. ƕ Make sure that the ADF width adjusters are snug against the sides of the media. • Unclear text ƕ Try adjusting the contrast and copy-quality settings. ƕ The 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. Solve copy problems 111

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Copy quality is poor
Take steps to improve the copy quality
Use quality originals.
Load the media correctly. If the media is loaded incorrectly, it might skew,
causing unclear images. See
Media
specifications for more information.
Use or make a carrier sheet to protect your originals.
Check the printer
The scanner lid might not be closed correctly.
The scanner glass or lid backing might need cleaning. See
Maintain
the
printer
for more information.
The 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:
Make sure that the ADF input tray is not too full.
Make sure that the ADF width adjusters are snug against the sides of the media.
Unclear text
Try adjusting the contrast and copy-quality settings.
The 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.
Solve copy problems
111