HP Officejet Pro K550 Printer - Manual (Page 47)

General troubleshooting tips
Ensure the following:
● Power light is on and not blinking. When the printer is turned on for the first time, it takes
approximately 8 minutes to initialize the printer after the printheads are installed.
● Make sure the printer is in the ready state. If lights are on or blinking, see Printer lights reference .
● No error messages appear on the computer screen.
● Power cord and other cables are working, and are firmly connected to the printer. Make sure the
printer is connected firmly to a functioning alternating current (AC) power outlet, and is turned on.
See
Electrical specifications for voltage requirements.
● Media is loaded correctly in the tray and is not jammed in the printer.
● 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.
● Rear access panel (HP Officejet Pro K550) or duplex unit (HP Officejet Pro K550dtn/K550dtwn)
is locked into place.
● All packing tapes and materials are removed from the printer.
● Printer can print a configuration page. See Understanding the configuration page .
● The printer is set as the current or default printer. For Windows, set the printer as the default in
the Printers folder. For Mac OS, set the printer as the default in the Chooser or the Print Center.
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.
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