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Browse Prior Art Database

BIDIRECTIONAL FLAT-TO-FLAT SCAN IMAGING SYSTEM

IP.com Disclosure Number: IPCOM000024484D
Original Publication Date: 1980-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 91K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure describes a bidirectional optical scanning system intended for use in a xerographic copier/duplicator device. It provides for the imaging of an original document retained on a flat platen onto a flat xerographic photoreceptor which may, for example, be a flexible member constrained to be flat during the exposure step.

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KEROX DISCLOSURE JOURNAL

BIDIRECTIONAL FLAT-TO-FLAT SCAN IMAGING SYSTEM
James D. Rees

Proposed Classification
U.S. Cl. 355/8
Int.
CI. G03g 15/28

FIG. /

FIG. 2

Ill

...

Volume 5 Number 5 September/October 1980

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531

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

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BIDIRECTIONAL FLAT-TO-FLAT SCAN IMAGING SYSTEM (Cont'd)

This disclosure describes a bidirectional optical scanning system intended for use in a xerographic copier/duplicator device. It provides for the imaging of an original document retained on a flat platen onto a flat xerographic photoreceptor which may, for example, be a flexible member constrained to be flat during the exposure step.

Figure 1 shows the elements of the optical system which provides two separate imaging paths. In this system, original document 1 is mounted face down on a stationary transparent platen 2. Illumination source 3 provides illumination along a longitudinal portion of the document while lens 4, which can be a SELFOC or strip lens, transmits an image of document 1 onto photoreceptor 5. Spherical lens 6 of suitable focal length, along with mirrors 7 define a second optical path from document to photoreceptor. Light source 8 illuminates the document for the spherical lens system. The position of mirrors 7 can be so selected as to provide a wide range of magnifications, including both enlargement and reduction.

Figure 2 shows the dual-optical system of Figure L contained in a suitable mounting member 9 which en...