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A TRANSPARENCY COPYING MACHINE

IP.com Disclosure Number: IPCOM000023353D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 62K

Publishing Venue

Xerox Disclosure Journal

Abstract

An electrophotographic printing machine in which a transpar-ency or an opaque original document is reproduced. In repro-ducing a transparency, mirror 34 is pivoted into the path of the transparency light image. When an opaque original docu-inent is being reproduced, mirror 34 is pivoted to a position remote from the transparency light image path. The optical system of the electrophotographic printing machine employs a projector 20 having a light source 22 for illuminating trans-parency 18 disposed therein. Lens 24 forms a light image and projects it onto mirror 34. Arm 28 has mirror 34 secured rotatably on end portion 32 thereof. End portion 30 of arm 28

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

A TRANSPARENCY COPYING MACHINE
Proposed A, Cherian Classification

U.S. Cl. 355/3
Int. Cl. G03g 15/00

An electrophotographic printing machine in which a transpar-
ency or an opaque original document is reproduced. In repro-
ducing a transparency, mirror 34 is pivoted into the path of
the transparency light image. When an opaque original docu-
inent is being reproduced, mirror 34 is pivoted to a position
remote from the transparency light image path. The optical
system of the electrophotographic printing machine employs a
projector 20 having a light source 22 for illuminating trans-
parency 18 disposed therein. Lens 24 forms a light image and
projects it onto mirror 34. Arm 28 has mirror 34 secured
rotatably on end portion 32 thereof. End portion 30 of arm 28

34

36 42

40

/0

Volume 2 Number 3 May/June 1977 69

[This page contains 10 pictures or other non-text objects]

Page 2 of 2

A TRANSPARENCY COPYING MACHINE (Cont~d)

is mounted pivotably on frame 26 supporting projector 20, Arm
28 is U-shaped. Portions 30 and 32 of arm 28 extend substan-
tially normal to the central portion thereof. In the trans-
parency reproduction mode, arm 28 is pivoted so as to dispose
mirror 34 in the path of the transparency light image, Mirror
34 is rotated on portion 32 of arm 28 so that the light image
is reflected in a downwardly direction through field lens 36,
screen 42, composition frame 40 and platen 38. Lens 48
traverses platen 38 to illuminate incremental areas of compo-
siti...