What is the maximum print resolution for black and color documents on my HP Officejet 6600?
The maximum print resolution for this printer is up to 1200 x 1200 enhanced dpi (black) and up to 4800 x 1200 optimized dpi (color), providing high quality printing on selected HP photo papers.
From the official HP Officejet 6600 E All IN One Printer Series H711 manual, page 2
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