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HP Deskjet 3940 C9050A#B1H Up to 16 ppm Black Print Speed Up to 4800 x 1200-optimized dpi color and 1200-input dpi Color Print Quality USB InkJet Personal Color Printer Inkjet Printers - Newegg.com
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How to Replace an Empty Ink Cartridge in the HP Deskjet 3940 series Printer – an Illustrated Tutorial in 10 Steps – Replacethatpart.com
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