Re: Printer DPI

<pjmoriarty@xxxxxxxxx> wrote in message news:1174688134.429862.5830@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Discussion Preface: a given printer is listed as having a dpi of
2400dpi x 1200dpi

Question: If an inch is already a square unit of measure, what is the
meaning of the second value?

2400dpi would mean (by my logic) that 2400 dots may fit in a given
square inch...why then also a listing of 1200dpi?

Are dots rectangular? are they stacked like bricks...allowing for more
layers on the vertical axis of a given squared inch than on the
horizontal?

If anyone is familiar with these conventions, please help. I'm finding
this to be rather curious.

PJ Moriarty



Also at least for HP the printer can use up to 36 dots to make one color. The ink is not opaque and the printer can layer them, overlap them by different amounts, etc. There was a really interesting program on one of the educational channels (like Discovery, etc.) on the "How Its Made" show about inks and they talked about how inks for inkjet printers are made and how the printers use them. They dealt only with HP, but it was interesting.

=(8)

.

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