HP Officejet 7500A Wide Format e-All-in-One Printer - E910a - Manual (Page 109)

Solution 2: Use a higher print quality setting
Solution: 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.
Cause: The print quality setting was set too low.
If this did not solve the issue, try the next solution.
Solution 3: Rotate the image
Solution: If the problem persists, use the HP software 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.
Cause: The defect is more noticeable in areas of uniform light colors, so rotating
the image may help.
Printouts have horizontal streaks or lines
Horizontal streaks are streaks that are at right angles (or perpendicular) to the direction
that the paper moved through the printer.
Try the following solutions if your printout has lines, streaks, or marks on it that run across
the width of the page.
•
Solution 1: Make sure the paper is loaded correctly
• Solution 2: Check your print settings
• Solution 3: Check the ink levels
• Solution 4: Align the printhead
• Solution 5: Clean the printhead
• Solution 6: Contact HP support
Solution 1: Make sure the paper is loaded correctly
Solution: Make sure that the paper is loaded correctly in the input tray.
For more information, see:
Load media
Cause: The paper was not loaded correctly.
If this did not solve the issue, try the next solution.
Solution 2: Check your print settings
Solution: 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.
Check the media settings. Make sure the media selected matches the media loaded
in the printer.
Cause: The print quality setting on the printer was set too low.
Print quality troubleshooting 105