CA2043665A1 - Copying machine - Google Patents

Copying machine

Info

Publication number
CA2043665A1
CA2043665A1 CA2043665A CA2043665A CA2043665A1 CA 2043665 A1 CA2043665 A1 CA 2043665A1 CA 2043665 A CA2043665 A CA 2043665A CA 2043665 A CA2043665 A CA 2043665A CA 2043665 A1 CA2043665 A1 CA 2043665A1
Authority
CA
Canada
Prior art keywords
sheet
copying
separating mechanism
copying machine
conveyed
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.)
Granted
Application number
CA2043665A
Other languages
French (fr)
Other versions
CA2043665C (en
Inventor
Hiroshi Tabuchi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CA2043665A1 publication Critical patent/CA2043665A1/en
Application granted granted Critical
Publication of CA2043665C publication Critical patent/CA2043665C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/5215—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned under articles separated from the top of the pile
    • B65H3/5223—Retainers of the pad-type, e.g. friction pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6511—Feeding devices for picking up or separation of copy sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/51—Sequence of process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/60—Details of intermediate means between the sensing means and the element to be sensed
    • B65H2553/61—Mechanical means, e.g. contact arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/004—Separation device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00405—Registration device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding

Abstract

A copying machine wherein sheets stacked in a sheet cassette are conveyed one by one to a sheet copying portion to take copies. Between a sheet supply portion and the copying portion there is disposed a sheet separating mechanism for separating plural sheets when taken out at a time from the sheet supply portion. Further, between the said sheet separating mechanism and the sheet copying portion there is disposed a sheet position detecting measure.
Plural sheets delivered from the sheet supply portion are separated one by one by the sheet separating mechanism, then after taking synchronism with the copying portion through the sheet position detecting measure, each sheet is conveyed, so copying can be done accurately.
CA002043665A 1990-10-25 1991-05-31 Copying machine Expired - Lifetime CA2043665C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2290464A JPH04164752A (en) 1990-10-25 1990-10-25 Copying machine
JP290464/90 1990-10-25

Publications (2)

Publication Number Publication Date
CA2043665A1 true CA2043665A1 (en) 1992-04-26
CA2043665C CA2043665C (en) 1998-12-01

Family

ID=17756360

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002043665A Expired - Lifetime CA2043665C (en) 1990-10-25 1991-05-31 Copying machine
CA002053555A Expired - Lifetime CA2053555C (en) 1990-10-25 1991-10-16 Copier with a superposed-sheet separation mechanism

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002053555A Expired - Lifetime CA2053555C (en) 1990-10-25 1991-10-16 Copier with a superposed-sheet separation mechanism

Country Status (4)

Country Link
JP (1) JPH04164752A (en)
CA (2) CA2043665C (en)
DE (2) DE4121296A1 (en)
GB (2) GB2249082B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0981016A (en) * 1995-09-19 1997-03-28 Fujitsu Ltd Electrophotographic image forming device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025187A (en) * 1974-09-05 1977-05-24 Xerox Corporation Buckle control system
US4113244A (en) * 1975-04-15 1978-09-12 Kurt Ruenzi Apparatus for automatically feeding individual sheets from a stack through an office machine
DE2704045C3 (en) * 1977-02-01 1979-06-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device to prevent double triggers
JPS5667858A (en) * 1979-11-08 1981-06-08 Canon Inc Sheet registration mechanism releasing device
EP0031726B1 (en) * 1979-12-29 1984-12-12 Mita Industrial Co. Ltd. Electrostatic copying apparatus
JPS56128066A (en) * 1980-02-11 1981-10-07 Exxon Research Engineering Co Facsimile sheet feeding device
US4306713A (en) * 1980-04-25 1981-12-22 International Business Machines Corporation Document feeder
DE3206993C2 (en) * 1981-02-27 1985-08-22 Canon K.K., Tokio/Tokyo Image forming apparatus with means for controlling the transport of recording material in the event of its faulty multiple feed
JPS5859137A (en) * 1981-09-25 1983-04-08 Konishiroku Photo Ind Co Ltd Paper feeder
JPH0623872B2 (en) * 1982-11-30 1994-03-30 三田工業株式会社 Electrostatic copying machine
JPS61132941A (en) * 1984-12-03 1986-06-20 Ricoh Co Ltd Copying device
JPS62140041U (en) * 1986-02-28 1987-09-03
US4974020A (en) * 1986-09-30 1990-11-27 Mita Industrial Co. Removable developing units for a copying machine and display for indicating the useful life of the machine
US4900003A (en) * 1987-11-09 1990-02-13 Canon Kabushiki Kaisha Sheet conveying apparatus
US5002266A (en) * 1987-12-26 1991-03-26 Canon Kabushiki Kaisha Sheet feed apparatus for image forming system

Also Published As

Publication number Publication date
JPH04164752A (en) 1992-06-10
CA2053555A1 (en) 1992-04-26
GB9112594D0 (en) 1991-07-31
DE4135315A1 (en) 1992-04-30
GB2250715A (en) 1992-06-17
DE4121296A1 (en) 1992-04-30
CA2043665C (en) 1998-12-01
CA2053555C (en) 1995-01-17
GB2249082B (en) 1994-06-29
GB9121895D0 (en) 1991-11-27
GB2249082A (en) 1992-04-29

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry