HP Officejet Pro 8000 User Guide - Page 77

The printout has a horizontal band of distortion near the bottom of a borderless print - printhead problems

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Check the printheads Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions. For more information, see To print the print quality diagnostic page. The printout has a horizontal band of distortion near the bottom of a borderless print Check the paper type HP recommends that you use HP papers or any other paper type that is appropriate for the product. Always make sure the paper you are printing on is flat. Uncurl paper by bending it in the opposite direction of the curl. For best results when printing images, use HP Advanced Photo Paper. Store photo media in its original packaging inside a resealable plastic bag on a flat surface, in a cool place. When you are ready to print, remove only the paper you plan to use immediately. When you have finished printing, return any unused photo paper to the original package, and reseal the bag. This will prevent the photo paper from curling. For more information, see Select print media. Use a higher print quality setting Check the print quality setting and make sure it is not set too low. Print the image with a high print-quality setting, such as Best or Maximum dpi. Rotate the image If the problem persists, use the software you installed with the product or another software application to rotate your image 180 degrees so that the light blue, gray, or brown hues in your image do not print at the bottom of the page. The defect is more noticible in areas of uniform light colors, so rotating the image may help. Clean the printhead Manually clean the printhead. For more information, see To clean the printhead contacts manually. Colors do not line up properly Check the printheads Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions. For more information, see To print the print quality diagnostic page. Check the graphics placement Use the zoom or print preview feature of your software to check for gaps in the placement of graphics on the page. Poor print quality and unexpected printouts 73

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Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see
To
print
the
print
quality
diagnostic
page
.
The printout has a horizontal band of distortion near the bottom of a borderless
print
Check the paper type
HP recommends that you use HP papers or any other paper type that is appropriate
for the product. Always make sure the paper you are printing on is flat. Uncurl paper
by bending it in the opposite direction of the curl. For best results when printing
images, use HP Advanced Photo Paper. Store photo media in its original packaging
inside a resealable plastic bag on a flat surface, in a cool place. When you are ready
to print, remove only the paper you plan to use immediately. When you have finished
printing, return any unused photo paper to the original package, and reseal the bag.
This will prevent the photo paper from curling. For more information, see
Select
print
media
.
Use a higher print quality setting
Check the print quality setting and make sure it is not set too low. Print the image with
a high print-quality setting, such as
Best
or
Maximum
dpi.
Rotate the image
If the problem persists, use the software you installed with the product or another
software application to rotate your image 180 degrees so that the light blue, gray, or
brown hues in your image do not print at the bottom of the page. The defect is more
noticible in areas of uniform light colors, so rotating the image may help.
Clean the printhead
Manually clean the printhead. For more information, see
To
clean
the
printhead
contacts
manually
.
Colors do not line up properly
Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see
To
print
the
print
quality
diagnostic
page
.
Check the graphics placement
Use the zoom or print preview feature of your software to check for gaps in the
placement of graphics on the page.
Poor print quality and unexpected printouts
73