JPS5752062A - Electronic copying machine - Google Patents

Electronic copying machine

Info

Publication number
JPS5752062A
JPS5752062A JP55127693A JP12769380A JPS5752062A JP S5752062 A JPS5752062 A JP S5752062A JP 55127693 A JP55127693 A JP 55127693A JP 12769380 A JP12769380 A JP 12769380A JP S5752062 A JPS5752062 A JP S5752062A
Authority
JP
Japan
Prior art keywords
scanning
original
scanning member
point
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55127693A
Other languages
Japanese (ja)
Inventor
Kenta Watase
Takaaki Miyashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP55127693A priority Critical patent/JPS5752062A/en
Publication of JPS5752062A publication Critical patent/JPS5752062A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move

Abstract

PURPOSE:To reduce copying time by highly accelerating the scanning member during the course between the starting point of the movement and the original detecting point on the outward trip of the scanning member and by setting the maximum speed of the scanning member to a speed which is faster than the speed of the scanning member when the light of image of originals are exposed. CONSTITUTION:An original 2 is placed on a platen 1 and a exposing light source 6 is installed below the platen 1. This light source 6 moves forward along the direction of an arrow (a) and returns in the opposite direction of the arrow (a). The first bracket for scanning 9 on which the light source 6, a reflector 7, the first mirror 8, a size sensor 10, etc., are placed, and the second bracket for scanning 16 on which the second mirror 15 is placed, are synchronously moved in the directions of arrows (a) and (d) in a ratio of 2:1. In this way, movements during the course between a point where the scanning member starts movement on the outward trip and a point where an original size detecting means detects the original, are highly accelerated and thus the copying time can be reduced.
JP55127693A 1980-09-13 1980-09-13 Electronic copying machine Pending JPS5752062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55127693A JPS5752062A (en) 1980-09-13 1980-09-13 Electronic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55127693A JPS5752062A (en) 1980-09-13 1980-09-13 Electronic copying machine

Publications (1)

Publication Number Publication Date
JPS5752062A true JPS5752062A (en) 1982-03-27

Family

ID=14966360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55127693A Pending JPS5752062A (en) 1980-09-13 1980-09-13 Electronic copying machine

Country Status (1)

Country Link
JP (1) JPS5752062A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260940A (en) * 1984-06-08 1985-12-24 Fuji Xerox Co Ltd Device for automatically detecting size of original
JPS61113054A (en) * 1984-11-08 1986-05-30 Toshiba Corp Original forming device
JPH0311464U (en) * 1989-06-20 1991-02-05

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425838A (en) * 1977-07-29 1979-02-27 Minolta Camera Co Ltd Temperature rise preventing device by exposure lamp of electrophotographic copiers
JPS54156645A (en) * 1978-05-31 1979-12-10 Mita Industrial Co Ltd Device for driving copying machine
JPS55118058A (en) * 1979-03-07 1980-09-10 Canon Inc Original scanner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425838A (en) * 1977-07-29 1979-02-27 Minolta Camera Co Ltd Temperature rise preventing device by exposure lamp of electrophotographic copiers
JPS54156645A (en) * 1978-05-31 1979-12-10 Mita Industrial Co Ltd Device for driving copying machine
JPS55118058A (en) * 1979-03-07 1980-09-10 Canon Inc Original scanner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260940A (en) * 1984-06-08 1985-12-24 Fuji Xerox Co Ltd Device for automatically detecting size of original
JPS61113054A (en) * 1984-11-08 1986-05-30 Toshiba Corp Original forming device
JPH0311464U (en) * 1989-06-20 1991-02-05

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