HP Officejet Pro L7480 All-in-One Printer - Manual (Page 70)

Clean the exterior
NOTE: Before cleaning the device, turn off the power and unplug the power cord
from the electrical socket.
Use a soft, damp, lint-free cloth to wipe dust, smudges, and stains off of the case. The
exterior of the device does not require cleaning. Keep fluids away from the interior of
the device, as well as from the control panel.
Troubleshooting tips and resources
Use the following tips and resources to resolve printing problems.
•
For a paper jam, see Clear a jam in the device .
• For paper-feed problems, such as the paper skew and paper pick, see Solve
paper-feed problems .
• Verify that:
•
The Power light is on and not blinking. When the device is turned on for the
first time, it takes approximately 12 minutes to initialize it after the printheads
are installed.
• No error messages appear on the computer screen.
• The power cord and other cables are working, and are firmly connected to the
device. Make sure the device is connected firmly to a functioning alternating
current (AC) power outlet, and is turned on. For voltage requirements, see
Electrical specifications .
• Media is loaded correctly in the tray and is not jammed in the device.
• Printheads and ink cartridges are properly installed in their correct color-coded
slots. Press down firmly on each one to ensure proper contact. Ensure you
have removed the orange protective caps from each printhead.
• Printhead latch and all covers are closed.
• The rear access panel or optional duplexer is locked into place.
• All packing tapes and materials are removed.
• The device can print a self-test diagnostic page. For more information, see
Understand the self-test diagnostic page .
• The device is set as the current or default printer. For Windows, set it as the
default in the Printers folder. For the Mac OS, set it as the default in the Printer
Setup Utility. See your computer's documentation for more information.
• Pause Printing is not selected if you are using a computer running Windows.
• You are not running too many programs when you are performing a task.
Close programs that you are not using or restart the computer before
attempting the task again.
Solve printing problems
• The device shuts down unexpectedly
• Error message appears on control-panel display
• The device is not responding (nothing prints)
• Device does not accept printhead
Chapter 8
66 Maintain and troubleshoot