HP Officejet Pro L7480 All-in-One Printer - Manual (Page 85)

• Black dots or streaks
•
Ink, glue, correction fluid, or an unwanted substance might be on the scanner
glass, the scanner glass might be dirty or scratched, or the lid backing might be
dirty. Try cleaning the scanner glass and lid backing. See
Clean the device for
more information. If cleaning does not correct the problem, the scanner glass
or lid backing might need to be replaced.
• The defects might be on the original and not a result of the scanning process.
• Unclear text
Try adjusting the settings. Make sure that the resolution and color settings are
correct.
• Size is reduced
The HP software settings might be set to reduce the scanned image. See the
product software Help for more information about changing the settings.
Troubleshoot installation issues
If the following topics do not help, see Support and warranty for information about HP
support.
• Hardware installation suggestions
• Software installation suggestions
Hardware installation suggestions
Check the device
•
Make sure that all packing tape and material have been removed from outside and
inside the device.
• Make sure that the device is loaded with paper.
• Make sure that no lights are on or blinking except the Ready light, which should be
on. If the Attention light is blinking, check for messages on the control panel.
• Make sure that the device can print a self-test diagnostic page.
Check the hardware connections
•
Make sure that any cords and cables that you are using are in good working order.
• Make sure that the power cord is connected securely to both the device and to a
working power outlet.
Check the printheads and ink cartridges
•
Make sure that you have removed the orange caps from the printheads.
• Make sure that all of the printheads and ink cartridges are firmly installed in their
correct, colorcoded slot. Press down firmly on each one to ensure proper contact.
The device cannot work if they are not all installed.
• Make sure that the printhead latch is closed properly.
• If the display shows a printhead error message, clean the contacts on the
printheads.
Troubleshoot installation issues 81