What advantage does a 2400x600 dpi printer have over a 1200x1200 dpi printer?

Posted by Cygon on Super User See other posts from Super User or by Cygon
Published on 2010-07-05T16:38:56Z Indexed on 2010/12/31 12:55 UTC
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printing

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resolution

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DPI

I've seen laser printers with a resolutions of 1200x1200 dpi and, strangely, 2400x600 dpi.

As the measure is dots per inch, not Kdots on a page or something (where a higher vertical resolution might make sense because paper is rectangular, not square), I'm wondering what the uneven resolution is good for.

Why print one square inch with 2400 dots vertically but only 600 horizontally? Does this look more detailed than 1200 by 1200 dots? Or is it better for textile printing or some other special case?

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