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Old Sep 24, 2002, 5:54 AM   #1
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Default if optimum resolution is 300dpi, what is the....

...point of having a printer which can print in the thousands of dpi? Please can someone explain
neily is offline   Reply With Quote
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Old Sep 24, 2002, 7:21 AM   #2
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The optimum image resolution for printing is about 300 PPI (pixels per inch). The human eye is apparently incapable of distinguishing improvements from higher image resolutions than this.

This PPI measure has absolutely no relationship with the DPI (dots per inch) numbers quoted by printer manufacturers. Photo printers use multiple dots to recreate each pixel from the image. I think that how many dots are required for each pixel depends on the colour being recreated (more dots for a darker colour) and the technology used by the printer.

I am personally very suspicious that the recent jumps in quoted DPI (e.g. Epson from 2880 to 5760) have very little to do with print quality and a lot to do with marketing!

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