Question about HEWLETT-PACKARD T790 InkJet Plotter Printer

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Yellow & Magenta not printing

Yellow & Magenta colors are not printed in papers in my hp t790 plotter. Can any one help please

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Both print heads are clogged, try to clean it manually if not succeeded replace both of them.. U can find how to clean print heads in you tube..
https://www.youtube.com/watch?v=Ztl_SiUdPLw

Posted on Sep 17, 2013

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Posted on Jan 02, 2017

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I have worked/ serviced similar Laserjet Color Printer with same issue.
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