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Shutter Assembly for Selectively Erasing Nonimage Areas of a Photoconductor Segment

IP.com Disclosure Number: IPCOM000079879D
Original Publication Date: 1973-Sep-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Bellamy, RL: AUTHOR [+4]

Abstract

A shutter assembly is utilized to selectively erase nonimage areas of a photoconductive segment with a single-light source.

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Shutter Assembly for Selectively Erasing Nonimage Areas of a Photoconductor Segment

A shutter assembly is utilized to selectively erase nonimage areas of a photoconductive segment with a single-light source.

Light emanating from an erase lamp housing 11 passes through aperture 13 of shutter plate 15, when the aperture is properly aligned with light guide 17 of housing 11. Aperture 13 is cut away at 19 and 21 so that light will pass through those portions of the aperture regardless of the shutter position, to thereby discharge the edge portions of a photoconductive segment passing adjacent shutter 15 in the direction of arrow 23.

Shutter 15 is selectively positioned to one of three positions: a first wherein all light from guide 17 is blocked except light emitted through areas 19 and 21, a second wherein all light emitted from guide 17 passes through aperture 13, and a third wherein only light passing through areas 19, 25, and 21 strikes the photoconductor segment.

Shutter 15 is selectively positioned to one of three positions. a first wherein all light from guide 17 is blocked except light emitted through areas 19 and 21, a second wherein all light emitted from guide 17 passes through aperture 13, and a third wherein only light passing through areas 19, 25, and 21 strikes the photoconductor segment.

Two independent solenoids 27 and 29 drivingly engage associated solenoid drive levers 31, 33 to transmit rotational motion to shaft 35 which, through lever arms 37 an...