HP Officejet J5740 All-in-One Printer - Manual (Page 145)

Solution: Load paper with the print side down. For example, if you are loading
glossy photo paper, load the paper with the glossy side down.
Printouts have vertical streaks
Cause: The paper type is not suitable for the HP All-in-One.
Solution: If the paper you are using is too fibrous, the ink applied by the HP All-in-
One might not fully cover the surface of the paper. Use HP Premium Papers or any
other paper type that is appropriate for the HP All-in-One.
For more information on choosing paper, see
Understand specifications for supported
media .
Cause: The glass or automatic document feeder of the sending fax machine is dirty.
Solution: If you have vertical lines or streaks on the fax, the sender's fax machine
might have dirt or dust on the glass or automatic document feeder. Check with the
sender to see if the glass or automatic document feeder is clean.
Printouts are slanted or skewed
Cause: The paper is not feeding properly or is loaded incorrectly.
Solution: Make sure the paper is loaded correctly.
To load full-size paper
1. Remove the output tray.
Print quality troubleshooting 143