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Browse Prior Art Database

Copier Gap Measurement

IP.com Disclosure Number: IPCOM000049660D
Original Publication Date: 1982-Jul-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Cochran, DE: AUTHOR [+2]

Abstract

A constant pressure air source monitored by an airflow meter accurately measures conduit constriction caused by a measured gap.

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Copier Gap Measurement

A constant pressure air source monitored by an airflow meter accurately measures conduit constriction caused by a measured gap.

A gap G between a copier's magnetic brush roll 1 and photoconductor drum 2 is indicated by the position of a floating ball 3 in an airflow meter 4 connected by a thin-walled hose 5 to a constant pressure P source 6 (frequently available in a copier). A section 7 of hose 5 varies airflow as a function of its cross-section.

When an operator inserts the section 7 into the gap G, the meter 4 indicates airflow permitted by the gap G. The angle at which the section 7 is inserted into the gap does not significantly affect the measured airflow.

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