JPS5793360A - Document feeder - Google Patents

Document feeder

Info

Publication number
JPS5793360A
JPS5793360A JP17005280A JP17005280A JPS5793360A JP S5793360 A JPS5793360 A JP S5793360A JP 17005280 A JP17005280 A JP 17005280A JP 17005280 A JP17005280 A JP 17005280A JP S5793360 A JPS5793360 A JP S5793360A
Authority
JP
Japan
Prior art keywords
air flow
drum
nozzle
original
air
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
JP17005280A
Other languages
Japanese (ja)
Inventor
Seiichi Namekata
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP17005280A priority Critical patent/JPS5793360A/en
Publication of JPS5793360A publication Critical patent/JPS5793360A/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
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/625—Apparatus which relate to the handling of originals, e.g. presence detectors, inverters

Abstract

PURPOSE:To obtain copies having no distortions in images by blowing air flow toward the cylindrical member surface of an exposure part and bringing a sheet material part, which is conveyed and passed through the exposure part by turning of the cylindrical member, into tight contact with the cylindrical by the wind pressure of the air flow. CONSTITUTION:Transparent glass 23 of an exposure part E is removed by an air flow blowing nozzle 30 and the air flow through the nozzle 30 is acted upon the drum surface region of the part E. Air is fed through a conduit 301, and the air is blown out roughly uniformly from each part of a slender opening 31 and acts roughly uniformly upon each part in the longitudinal direction of the drum of the part E. If the intensity of the air flow is set at the value suited for the intensity of the stiffness of an original, the trailing end of the original ends passing through the exosure part E while held retained to the drum 4 surface by the wind pressure of the air flow through the nozzle 30 in succession after said trailing end edge passes through the 1st rubber roller 13 and the pressure by the rubber roller 13 on the original toward the drum 4 surface is lost.
JP17005280A 1980-12-02 1980-12-02 Document feeder Pending JPS5793360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17005280A JPS5793360A (en) 1980-12-02 1980-12-02 Document feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17005280A JPS5793360A (en) 1980-12-02 1980-12-02 Document feeder

Publications (1)

Publication Number Publication Date
JPS5793360A true JPS5793360A (en) 1982-06-10

Family

ID=15897723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17005280A Pending JPS5793360A (en) 1980-12-02 1980-12-02 Document feeder

Country Status (1)

Country Link
JP (1) JPS5793360A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60229022A (en) * 1984-03-16 1985-11-14 ゼロツクス　コ−ポレ−シヨン Electrostatic recording type printing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60229022A (en) * 1984-03-16 1985-11-14 ゼロツクス　コ−ポレ−シヨン Electrostatic recording type printing equipment

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