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Digital BW, The Print

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Message

Re: [Digital BW] dpi and stuff

2004-11-11 by Bob Frost

Dean,

Epson desktop printers (up to and including the 1280/90 and 2100/2200 all 
resample your images in the driver to 720ppi. Epson WideFormat printers 
(3000 and above) all resample to 360dpi. This info is from Epson themselves.

Make sure you do not muddle ppi and dpi. Your images are in ppi (pixels per 
inch) and are resampled to 360 or 720 pixels per inch in the driver. The 
driver then turns each pixel in your image into several dots of ink, and the 
size and spacing of those dots of ink is varied when you select 360, 720, 
1440, 2880, or 5760 dpi printer resolution in the driver. In some drivers 
now they don't list these resolutions; they just give you the choice of 
photo quality, best photo, super photo or some such names to hide the actual 
resolutions (probably because many people were confusing the printer 
resolutions with the image resolution).

Bob Frost.



----- Original Message ----- 
From: "Dean" <dean@tbc.t-com.ne.jp>

I just read on another camera forum that Epson's printers all print at a
"native" resolution of 360dpi and that printing at anything else is
pointless because the driver just re-samples the image to 360dpi. Is
this true?

I notice that the you can select select things like "superPhoto-2880" on
the driver. Does this refer to how much ink it can squeeze into it's
native 360 dots per inch?

Slightly confused now.

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