The resolution they advertise on the box isn??™t a measure of how
many pixels per inch (ppi) the printer can accurately lay down on paper. If it were, 2880dpi
inkjets would be capable of printing photos of professional magazine quality, and that??™s
clearly not the case. So something else must be going on.
Indeed. Here??™s the deal: the advertised resolution of an inkjet printer is a measure of
the accuracy of mechanical systems like the step motor that drives the print head around on
the page and the precision of the nozzles themselves to make tiny dots of ink on the paper.
Certainly, you want the printer to be as accurate as possible, but, in reality, it takes several
steps for the print head to make a single pixel on the paper??”and it??™s those pixels of color,
in the end, that limit the printer??™s maximum resolution. So, an inkjet with a resolution of
2880dpi isn??™t necessarily a whole lot better than an inkjet with a resolution of 1440dpi or
300dpi. Visually, prints made with one printer might look slightly better than the other, but
certainly not twice as good. It??™s like buying a 3GHz computer. It??™s faster than a 1.5GHz
PC, but it??™s not twice as fast, because a lot of factors affect computer speed besides just
the processor.
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