HP Officejet Pro L7480 All-in-One Printer - Manual (Page 72)

Device does not accept printhead
Check the printhead latch
Make sure the printhead latch is properly closed.
Check the printhead
•
Make sure the printhead is inserted into its correct color-coded slot. For more
information, see
Replace the printheads .
• Remove the printhead, and check to make sure the orange protective caps have
been removed from the printhead.
Clean the printhead
Complete the printhead cleaning procedure. For more information, see
Maintain the
printheads .
Turn off the device after removing the printhead
After removing the printhead, turn off the device, wait about 20 seconds, and turn it on
again without the printhead installed. After the device has restarted, reinsert the
printhead.
Device takes a long time to print
Check the system resources
Make sure your computer has enough resources to print the document in a reasonable
amount of time. If the computer meets only the minimum system requirements,
documents might take longer to print. For more information on minimum and
recommended system requirements, see
System requirements . In addition, if the
computer is too busy running other programs, documents can print more slowly.
Check the device software settings
Print speed is slower when Best or Maximum dpi is selected as the print quality. To
increase the print speed, select different print settings in the device driver. For more
information, see
Change print settings .
Blank or partial page printed
Check for empty ink cartridges
Check the control panel to see which cartridge is low or empty. The Toolbox
(Windows), HP Printer Utility (Mac OS), and the self-test diagnostic page (see
Understand the self-test diagnostic page ) provide information about ink levels. If you
are printing black text and a blank page prints, the black cartridge might be empty. For
more information, see
Replace the ink cartridges .
Check the printhead latch
Make sure the printhead latch is properly closed.
Chapter 8
68 Maintain and troubleshoot