JPS5788443A - Original feed device - Google Patents

Original feed device

Info

Publication number
JPS5788443A
JPS5788443A JP55164200A JP16420080A JPS5788443A JP S5788443 A JPS5788443 A JP S5788443A JP 55164200 A JP55164200 A JP 55164200A JP 16420080 A JP16420080 A JP 16420080A JP S5788443 A JPS5788443 A JP S5788443A
Authority
JP
Japan
Prior art keywords
original
detectable
range
type photoelectric
feed device
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
JP55164200A
Other languages
Japanese (ja)
Inventor
Mitsuo Akiyama
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP55164200A priority Critical patent/JPS5788443A/en
Publication of JPS5788443A publication Critical patent/JPS5788443A/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
    • G03B27/6264—Arrangements for moving several originals one after the other to or through an exposure station

Abstract

PURPOSE:To greatly expand the range of a detectable original, by adopting a photoelectric sensor as plural sensors installed along the carrying passage of an original feed device, and also constituting them by the same mode. CONSTITUTION:An original presence detecting sensor 5, an original tip detecting sensor 10 and an original discharge detecting sensor 11 of an original feed device are all constituted of a reflection type photoelectric sensor. In case of combination of a transmission type photoelectric sensor and a reflection type photoelectric sensor, etc., the relation between a transmission factor and a reflection factor is not constant, as a result, the range of a detectable original is narrowed. In case only reflection type photoelectric sensors are used, however, the detectable object range is limited by only the upper limit value of a constant reflection factor, therefore, the detectable object range can be expanded remarkably. Accordingly, according to such a constitution, the range of a detectable original is greatly expanded.
JP55164200A 1980-11-21 1980-11-21 Original feed device Pending JPS5788443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164200A JPS5788443A (en) 1980-11-21 1980-11-21 Original feed device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164200A JPS5788443A (en) 1980-11-21 1980-11-21 Original feed device

Publications (1)

Publication Number Publication Date
JPS5788443A true JPS5788443A (en) 1982-06-02

Family

ID=15788567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164200A Pending JPS5788443A (en) 1980-11-21 1980-11-21 Original feed device

Country Status (1)

Country Link
JP (1) JPS5788443A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912030A (en) * 1982-07-08 1984-01-21 Fuji Photo Film Co Ltd Sheet material transport mechanism
JPS6288747A (en) * 1985-10-15 1987-04-23 Fuji Xerox Co Ltd Paper feeding detector for copying machine and the like
EP1562081A1 (en) * 2004-02-03 2005-08-10 Avision Inc. Sheet-fed scanning device capable of detecting a document edge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4862449A (en) * 1971-12-03 1973-08-31
JPS5217440A (en) * 1975-07-31 1977-02-09 Ihara Chem Ind Co Ltd Process for preparation of phenylacetate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4862449A (en) * 1971-12-03 1973-08-31
JPS5217440A (en) * 1975-07-31 1977-02-09 Ihara Chem Ind Co Ltd Process for preparation of phenylacetate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912030A (en) * 1982-07-08 1984-01-21 Fuji Photo Film Co Ltd Sheet material transport mechanism
JPS6288747A (en) * 1985-10-15 1987-04-23 Fuji Xerox Co Ltd Paper feeding detector for copying machine and the like
EP1562081A1 (en) * 2004-02-03 2005-08-10 Avision Inc. Sheet-fed scanning device capable of detecting a document edge

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