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The choice of print technology has a great effect on the cost of the printer and cost of operation, speed, quality and permanence of documents, and noise. Some printer technologies do not work with certain types of physical media, such as [[carbon paper]] or [[transparency (projection)|transparencies]].
A second aspect of printer technology that is often forgotten is resistance to alteration: liquid [[ink]], such as from an inkjet head or fabric ribbon, becomes absorbed by the paper fibers, so documents printed with liquid ink are more difficult to alter than documents printed with [[toner (printer)|toner]] or solid inks, which do not penetrate below the paper surface.
Cheques can be printed with liquid ink or on special cheque paper with toner anchorage so that alterations may be detected.<ref>{{cite web|url=http://www.abagnale.com/pdf/protection_b.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://www.abagnale.com/pdf/protection_b.pdf |archive-date=2022-10-09 |url-status=live|title=Protection Against Cheque Fraud|publisher=abagnale.com|author=Abagnale, Frank|author-link=Frank Abagnale|year=2007|access-date=2007-06-27}}</ref> The machine-readable lower portion of a cheque must be printed using [[magnetic ink character recognition|MICR]] toner or ink. Banks and other clearing houses employ automation equipment that relies on the [[magnetic flux]] from these specially printed characters to function properly.
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