Chapter 10

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 configuration

Make sure the computer meets the minimum system requirements for the device. For more information, see System requirements.

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.

Check for radio interference

If the device is connected using wireless communication and is printing slowly, then the radio signal might be weak. For more information, see Guidelines for reducing interference on a wireless network.

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.

Check the printhead

Make sure the printhead is inserted into its correct color-coded slot. For more information, see To 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.

160 Maintain and troubleshoot

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HP Pro L7780, Pro L7750, Pro L7680, Pro L7650, Pro L7580 Device takes a long time to print, Blank or partial page printed