Light description /Light pattern
The Power light blinks.
The Power light and the Resume light blink.
The Power light is on and the Resume light blinks.
The Power light and the Resume light are on.
Explanation and recommended action
The printer is turning on or off, or is processing a print job.
▲No action is required.
The printer is pausing for the ink to dry.
▲Wait for the ink to dry.
Print media is jammed in the printer.
▲Remove all media from the output tray. Locate and clear the jam. See Clearing jams.
The printer carriage has stalled.
●Open the top cover and remove any obstructions (such as jammed media).
●Press 
(Resume button) to continue printing.
●If the error persists, turn the printer off, and then on again.
The printer is out of paper.
▲Load paper and press 
(Resume button).
The printer is in manual duplex mode. It is waiting for the ink to dry so that the pages can be flipped over and reloaded.
▲Reload the stack of media into the printer, and press
(Resume button).
A cover is not closed completely.
▲Make sure all covers are completely closed.
The rear access panel or duplex unit is missing, or is not inserted completely.
▲Make sure the rear access panel (HP Officejet Pro K550) or the duplex unit (HP Officejet Pro K550dtn/ K550dtwn) is inserted completely at the back of the printer.
ENWW | Interpreting control panel lights 59 |