Question about HP Office Equipment & Supplies
I have had this happen a couple of times and have cured it easily. It has only happened with the black with me. It seems to be caused by air in the ink feed line. With the printer switched on open the top cover and hold the resume button for 5 seconds. The printheads should move to the left and you may be able to see air in the pipe(s). Remove the printhead of the offending colour(s) then insert a syringe with the plunger fully down into the rubber that the printhead connects to. Draw up the syringe plunger to draw ink/air through until you can see no more air in the pipe. Replace the printhead and close the cover. The printer should now do a calibration with the offending colour hopefully now working.
Posted on Mar 29, 2009
Do you have the K550dtn or K550dtwn versions or just the K550? You can normally find this on the back of the printer on a nameplate.
And, what operating system are you using?
Posted on Sep 12, 2008
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Posted on Jan 02, 2017
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