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Copier Test Drum

IP.com Disclosure Number: IPCOM000051310D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 58K

Publishing Venue


Related People

Dillan, GO: AUTHOR [+5]


An instrumented stationary drum replaces a copier's photoconductor drum during testing.

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Copier Test Drum

An instrumented stationary drum replaces a copier's photoconductor drum during testing.

It is desirable to thoroughly test a copier and make preliminary adjustments before actually producing copies for economic reasons. This is accomplished by placing, on the copier's photoconductor shaft, a stationary drum which carries sensors, sources and targets utilized during the copy process to determine proper copier operation and facilitate adjustments.

The drum is assembled from sections of any appropriate structural material, such as metal or plastic. For example, it may be constructed of molded plastic segments retained within plastic end plates. Each segment carries instrumentation which measures and simulates steps in the copy process. Segment assignments are illustrated in Table I and examples of instrumentation are listed in Table II. All segments interface to a microprocessor controller which prompts a test operator. For example, if the controller instructs the operator to "make adjustment XX", remeasurement occurs to assure correct adjustment. See Original.


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