This type of defect might occur when using preprinted forms or a
large quantity of narrow media.
Print a few more pages to see if the problem corrects itself.
Make sure that paper type and quality meet HP specifications
(see “Paper specifications” on page 188).
If you observe that this type of defect occurs on wide paper (such
as letter- or A4-size paper) just after printing on narrow media
(such as envelopes), you can set
SMALL PAPER SPEED
Paper Handling Menu to
(see “Paper Handling Menu” on
page 210). Note that this will slow down printing.
Maintenance might be due. Check this by printing a copy of the
supplies status page (see “Supplies status page” on page 154). If
maintenance is due, order and install the printer maintenance kit
(see “Performing preventative maintenance” on page 93).