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DPI for Print - A Naive Question
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Pavel Dvorak
Jan 21, 2003, 1:56:18 PM1/21/03
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Is there any advantage or disadvantage in specifying the print DPI as a simple
fraction of the printer's native DPI, say 360 dpi for an Epson, 300 dpi for a
Canon?
fraction of the printer's native DPI, say 360 dpi for an Epson, 300 dpi for a
Canon?
Pavel
Pavel Dvorak
Jan 23, 2003, 8:57:05 AM1/23/03
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Some time ago I posted the question shown below. Nobody has replied
so far. Is the question so stupid that it is not worth answering, or is
it just that nobody has an answer?
so far. Is the question so stupid that it is not worth answering, or is
it just that nobody has an answer?
It seems logical to me that if the printer dpi is not divisible by the
image dpi, the printer has to do some resampling - or am I showing a total
lack of understanding?
Pavel
g.r.s...@kpn.com
Jan 23, 2003, 10:40:05 AM1/23/03
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In article <b0osbh$b0h$1...@freenet9.carleton.ca>,
Well, as a lot of things: it all depends.... In this case on your printer
driver. I used to have an Epson Stylus Photo EX (1440x720 dpi), and for that
printer it indeed made a difference. For my new Epson 2100, it does not seem
to make a difference.
To my understanding, the older printerdrivers first resampled the image to fit
the printer's resolution, but the 2100's driver does not.
Might be the best to try it yourself: just make two prints of the same image.
Stefan.
Charles P Lamb
Jan 25, 2003, 12:31:57 AM1/25/03
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There is a slight advantage although it is not as great as you might guess.
The key here is that the DPI quoted is the dot density--not the dot
resolution. When printing at full density the dots overlap.
The key here is that the DPI quoted is the dot density--not the dot
resolution. When printing at full density the dots overlap.
Charles P. Lamb
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