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Copy Quality Testing

IP.com Disclosure Number: IPCOM000043284D
Original Publication Date: 1984-Aug-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Bustamante, LA: AUTHOR [+2]

Abstract

An indicator is provided to ensure that copier service personnel do not begin copy quality testing of a copier until the copier's conditions of operation, for example, operation of the magnetic brush developer, have stabilized. U.S. Patent 4,312,589 describes an arrangement whereby the voltage, to which a xerographic copier's photoconductor is changed, changes as a function of the optical density of a toner test patch carried by the photoconductor. In this manner, optimum copy quality is provided during the time that this voltage is being changed to its eventual stable operating value. However, it is desirable that service personnel not run tests on the copier during this time. A visual indicator is provided, indicating that this voltage has reached its operating value.

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Copy Quality Testing

An indicator is provided to ensure that copier service personnel do not begin copy quality testing of a copier until the copier's conditions of operation, for example, operation of the magnetic brush developer, have stabilized. U.S. Patent 4,312,589 describes an arrangement whereby the voltage, to which a xerographic copier's photoconductor is changed, changes as a function of the optical density of a toner test patch carried by the photoconductor. In this manner, optimum copy quality is provided during the time that this voltage is being changed to its eventual stable operating value. However, it is desirable that service personnel not run tests on the copier during this time. A visual indicator is provided, indicating that this voltage has reached its operating value. The indicator can be provided under the covers of the copier, or can be provided on the control panel. When the copier is of the computer-controlled type, a control bit is set only when the voltage has reached the operating value, and this set bit causes the indicator to be activated.

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