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HP DesignJet Z9+dr 44-in PostScript Printer with V-Trimmer
Microsoft Windows 10 (64-bit)

DesignJet Z9 +dr 44 in PostScript Printer- we have used poster board paper for almost 2 years, all of a sudden the dark ink will not dry on the same 28"x22" posters.  HP keeps saying it's the product.  Again same paper.  Ink looks thick and will not dry.

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