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Student
Posts: 1
Member Since: ‎07-08-2014
Message 1 of 2 (1,700 Views)

Printer only prints magenta and some yellow, no black or cyan

[ Edited ]

So I have an HP Officejet Pro K8600 that I got slightly used. They were throwing it out because it didn't print black or yellow, and so I took it and replaced the printhead and it worked great for about a month of light use (Approx. 1 sheet a day, nothing too color intensive). However, I have started to have issues with it.

 

Despite the ink and black\yellow printhead being new (And geniune HP parts), I am now having issues with it not printing correctly. Attached is a picture of a PQ diagnostic page. Apologies about the poor quality, I don't have a scanner at the moment, so all I can do is take a picture.  It doesn't seem to be doing any black or cyan ink at all, as the black and cyan bars are mostly gone, and the green bar is solid yellow.

 

2014-07-08 14.12.33.jpg

Any ideas on what would cause this? I don't think it's a printhead issue, because one color on each printhead works, but I'm not sure what it could be.

 

EDIT: I should mention, even though I didn't think it would help at all, I have tried aligning the printheads, cleaning them, and calibrating the linefeed. None seems to have helped.

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HP Support Agent
Posts: 14,802
Member Since: ‎03-26-2014
Message 2 of 2 (1,668 Views)

Re: Printer only prints magenta and some yellow, no black or cyan

[ Edited ]

Hi EvanWeatherly,

 

Welcome to the HP Forums!

 

I see that your HP Officejet K8600 will not print Black or Cyan. I am happy to help you with this issue!

 

I would recommend to go through this print quality guide. Troubleshooting Print Quality Issues.

 

If that doesn't work, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. Country-language selector.

 

Hope this helps you, and have a great day! Smiley Happy

RnRMusicMan
I work on behalf of HP

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