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Lamp Control for Document Reproduction Machine

IP.com Disclosure Number: IPCOM000085974D
Original Publication Date: 1976-Jul-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Hubbard, JH: AUTHOR [+2]

Abstract

In a document reproduction machine having both automatic and manual document handling capabilities, throughput of the automatic means can be enhanced by maintaining the document lamp on after the scan of the document by the lamp has been completed. In the manual mode, for operator convenience, it is desired to turn the lamp off as soon as the scan is completed. Then, when the operator removes the original from the platen, the lamp does not shine in the operators eyes.

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Lamp Control for Document Reproduction Machine

In a document reproduction machine having both automatic and manual document handling capabilities, throughput of the automatic means can be enhanced by maintaining the document lamp on after the scan of the document by the lamp has been completed. In the manual mode, for operator convenience, it is desired to turn the lamp off as soon as the scan is completed. Then, when the operator removes the original from the platen, the lamp does not shine in the operators eyes.

To this end, the document reproduction machine receives documents either manually or automatically for transfer over a platen via SADF (semiautomatic document feed) or by manually placing a document on the plate by lifting the SADF from the platen. A transfer electrographic processor receives image light from the platen for producing copies. Electrical communication coordinates operation of the SADF and the processor.

Upon completing the platen scan by means, not shown, a scan over (scan complete) signal is supplied through an OR circuit to turn off the document lamp via the soft-start circuit. This turn off is used only in the manual mode.

In the automatic or semiautomatic modes, the transfer electrographic processor provides a normal shutdown procedure taking a predetermined time. When the processor has completed the shutdown procedure, it supplies an SADF shutdown signal through the OR circuit to turn off the document lamp.

In the SADF mode, this del...