Officejet Pro K550 won't manually duplex

My Officejet K550 used to manually duplex. Now it prints all pages continuously, even though the "reload paper" window appears on the screen!
I am using Windows Vista Home Premium, the latest version, with all updates.
Thanks, in advance, for any advice.

Hi Linda,
I found some colleagues who had worked on that printer. There are some things to try, however it's not all good news.
The engineer believes the nozzles on the printhead may be clogged for one of 2 reasons. The first is that there is just some ink residue. Here's what he says: "Perhaps you can suggest the customer to try remove the printhead (just the printhead that has the cyan nozzles), and use a wet cloth or cotton swab to clean away the ink residue around the nozzles. Then replace the printhead, and perform the cleaning sequence that the manual says. This procedure might be able to recover some nozzle clog scenarios, but it will use up some ink."
However, it could be that air has gotten into the printhead: ". If the printhead is deprimed, it means air has got into a certain chamber after started up, that can never be purged out, causing ink not able to flow through anymore. For such cases, I think the printhead need to be replaced."
The engineer also talked with customer assurance, who believes this particular product is past its end of life, which means that it's technically older than Hp designed it to function. I know you've only had it 3 years, but wanted you to be aware of that.
Karen
I am an HP employee.

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I worked on behalf of HP.

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Click on the "Thumbs up"button on the left to say "Thanks"
Please mark the post that solves your problem as "Accepted Solution"
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Hello tdhoobyar,
Please click here to access the troubleshooting steps that should resolve the issue.
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Give Kudos to say "thanks" by clicking on the "thumps Up icon" .
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Although I am an HP employee, I am speaking for myself and not for HP.

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This question was solved.
View Solution.

I followed the steps with The Automatic Document Feeder (ADF) Does Not Pick Up Paper - cleaning the rollers and it fixed it. Thank you!

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Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Gemini02
I work on behalf of HP

Officejet Pro K550 won't manually duplex

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