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Coating to Increase Wear Resistance in Impact Belts and Other Print Mechanisms Disclosure Number: IPCOM000052435D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11

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Related People

Kuntzleman, HC Mitchell, JW Sambucetti, CJ [+details]


A successful impact printing mechanism employs the use of a circular metallic belt having in its outer periphery raised characters or fonts. These fonts are impacted by hammers which impress the characters through a ribbon onto the paper. Various manufacturers produce printers of this kind. A common problem affecting the technology is the substantial mechanical wear (friction against the paper) of the raised characters, especially when the belt is run to print at high rates (over 1000-2000 lines/minute). This is a serious problem because the belt has to be replaced often. The material from which the fonts are made is usually a hard, high wear-resistant steel or similar alloy.