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PRESET COPY QUALITY SELECTION IN TERMS OF ORIGINAL ATTRIBUTES

IP.com Disclosure Number: IPCOM000025586D
Original Publication Date: 1986-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 6 page(s) / 262K

Publishing Venue

Xerox Disclosure Journal

Abstract

The high volume duplicating market, populated by centralized reproduction departments, commercial printers and quick printers, is required to do many complex duplicating jobs Many of these jobs require a wide latitude of machine set-ups to produce acceptable copy quality, particularly set-ups affecting copy density, exposure, and contrast. It as proposed here that special mode controls for document type, exposure, photo contrast, and density be provided to enable the operator to vary the output copy exposure, contrast, and density interactively during the printer "ready" and "print" operating modes. As a result, a high degree of automation 1s achieved bnnging needed productivity improvements

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XEROX DlfSCLOSURE JOURNAL

PRESET COPY QUALITY SELECTION Proposed Classification IN TERMS OF ORIGINAL ATTRIBUTES U.S Cl 35513R
Ralph E. Harcourt Int. C1 G03g 15/00 Frank J DeNunzio
Robert G. Harner
Eugene S. Evanitsky
Frank M. Goetz

The high volume duplicating market, populated by centralized reproduction departments, commercial printers and quick printers, is required to do many complex duplicating jobs Many of these jobs require a wide latitude of machine set-ups to produce acceptable copy quality, particularly set-ups affecting copy density, exposure, and contrast. It as proposed here that special mode controls for document type, exposure, photo contrast, and density be provided to enable the operator to vary the output copy exposure, contrast, and density interactively during the printer "ready" and "print" operating modes. As a result, a high degree of automation 1s achieved bnnging needed productivity improvements

1. DOCUMENTTYPE CONTROL

The "Document Type Control" enables. an operator to select nominal Exposure, Density, and Photo Contrast control settings for various original types when the copy quality frame is active The control comprases an up/down switch pair with a column ofdocument types Isalbeled-

[SPECIAlIJ

LightIma e

Photograp Standard % Paste Up Colored Paper DOCUMENT TYPE

A nominal document type such as "Standard" as used as the default position for this control.

Momentary actuation of the up or down switch wall. cause a reverse video selector to scroll an the selected direction one position, continued actuation will cause the reverse video selector to scroll additional steps at a constant rate The selected "Document Type" is sensed by the machine logrc which sets the Exposure, Density, and Photo Contrast controls to preprogrammed nominal settings

Volume 11 Number 3 May/June I988 123

[This page contains 1 picture or other non-text object]

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PRESET COPY QUALITY SELECTION IN TERMS OF ORIGINAL ATTRIBUTES (Cont'd)

The "Special" Document Type is displayed in the situation where the Exposure, Density, and Photo Contrast control settings are not equal to one of the sets of preprogrammed nominal settings. When an a "Special" state, and one or more of the controls are adjusted such that a set of pseprograrnmed nominal settings is equaled, then the "Special" state will be excluded and the preprogrammed "Document Type" Indicated.

2. EXPOSURE CONTROL

The "Exposure Control Specsal Mode" enables an operator to interactively vary output copy density during "Ready" or "Print" modes through adjustment of the machine lens aperture to increase or decrease exposure over a range which will provide a density variation from "paste-up" to "bold" The control comprises an up/down switch pair with a soft labeled thermometer scaled from 1 to 9 and labeled

'1

Paste Up

2

a

EXFBSURE

A nominal exposure setting such as "5" IS used as the default position for this control.

Momentary actuation of the up or down swatch wall cause the ther...