US3829083A - Automatic original feed device for electrophotographic duplicating machine - Google Patents

Automatic original feed device for electrophotographic duplicating machine Download PDF

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Publication number
US3829083A
US3829083A US00304979A US30497972A US3829083A US 3829083 A US3829083 A US 3829083A US 00304979 A US00304979 A US 00304979A US 30497972 A US30497972 A US 30497972A US 3829083 A US3829083 A US 3829083A
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United States
Prior art keywords
original
section
originals
conveying
tray
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Expired - Lifetime
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US00304979A
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English (en)
Inventor
T Shiina
A Midorikawa
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Ricoh Co Ltd
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Ricoh Co Ltd
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B27/00Photographic printing apparatus
    • G03B27/32Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52Details
    • G03B27/62Holders for the original
    • G03B27/6207Holders for the original in copying cameras
    • G03B27/625Apparatus which relate to the handling of originals, e.g. presence detectors, inverters
    • G03B27/6264Arrangements for moving several originals one after the other to or through an exposure station

Definitions

  • An automatic original feed attachment for mounting on conventional electrophotographic duplicating machines comprising: a first section which is connected to the machine having a tray for holding a stack of originals to be duplicated and a feed system for removing the originals in sequence from the tray; a second section pivoted to the first section and having an endless belt which passes over the copying position of the machine and feeds originals from the first section to'the copying position and holds them there during copying; and a third section connected to the second section and having an original receiving tray and a sysvtem for removing originals after copying and reversing their feed path before delivery to the receiving tray.
  • the receiving tray mounting permits it to be dropped from its normally inclined position to rest on the second section and the second section may be pivoted up from the copying position to permit free access to the original receiving glass plate for individual copying when the present attachment is not being used.
  • This invention obviates the aforementioned disadvantages of conventional duplicating machines, and accordingly, provides an automatic original feed device which can be mounted as an attachment in unitary form on conventional electrophotographic duplicating machines to perform the duplicating operation automatically at an increased operating speed, and which does not place limits on the scope of use to which the duplicating machine may be put by permitting duplication of a page or pages of a book or the like to be carried out when necessary without removing the device from the duplicating machine.
  • the present invention embodies an automatic original feed device, adapted to be mounted on a conventional electrophotographic duplicating machine as an attachment in unitary form, comprising an original stand-by section having an original rest tray and separating means for feeding originals from the original rest tray one after another to an illuminating position; an original conveying and holding section having an endless belt for conveying each of the originals fed from the original stand-by section to the illuminating position and for holding each original in such position; an original ejecting section having means for conveying each original from the illuminating position after being illuminated; and a tray for receiving each original conveyed thereto.
  • the original conveying and holding section, and the original ejecting section are pivotable about a shaft to facilitate their release from the illuminating position and expose the original receiving glass plate of the duplicating machine without removing the device therefrom.
  • FIG. 1 is a schematic view of an electrophotographic duplicator having the automatic original feed device according to the invention mounted thereon;
  • FIG. 2 is a sectional view of the original stand-by section of the device
  • FIG. 3 is a sectional view of the original conveying and holding section and the original ejecting section of the device.
  • FIG. 4 is a side view of the original stand-by section showing the side plate on which the main switch is mounted.
  • FIG. I there is shown the automatic original feed device 2 according to this invention mounted on a conventional electrophotographic duplicating machine 1.
  • the duplicating machine has mounted therein a photosensitive paper roll 31 from which a photosensitive web is unwound and cut by a cutter into a photosensitive sheet of a predetermined size, which sheet is forwarded to an electrically charging device 32 and uniformly charged therein. After being charged, the photosensitive sheet is supplied to an exposing position 34 and is stopped there as its leading end impinges on a microswitch actuator 35 so that its leading end remains stationary at a predetermined position at all times.
  • the photosensitive sheet has an electrostatic latent image of the original formed thereon through a movable optical system 36, and the latent image is developed by a developing device 37. After being developed, the photosensitive sheet is ejected through a discharging port 38 on a duplicate receiving tray 39.
  • ll designates a main switch of the duplicating machine, 41 a printing button, and 42 a repeat dial.
  • the automatic original feed device 2 comprises an original stand-by section 3, an original conveying and holding section 4 and an original ejecting section 5.
  • the original ejection section 5 has an original receiving tray 7 which may be pivoted into a position in which it is disposed on the original conveying and holding section 4 as shown in the lower dash-and-dot lines in FIG. I and may be held there by magnetic attraction to the case of section 4.
  • the original stand-by section 3 may be mounted on the duplicating machine proper I, such as by suitable screws, and the original conveying and holding section 4, which may be pivotally connected to the original stand-by section 3 through a shaft 6, rests on the duplicating machine proper 1 by its own weight.
  • the original conveying and holding section 4 and original ejecting section 5 can be pivoted about the shaft 6 into the respective positions shown in dash-anddot lines in FIG. I and in which positions they can be locked.
  • This arrangement permits the duplicating machine l to be used for performing a normal duplicating operation with its original-receiving glass plate 18 being rendered free to receive thereon an original of any form, such for example as a book of large thickness, without removing the automatic original feed device 2 from the duplicating machine I.
  • the original stand-by section 3 is shown in greater detail as having an inclined original rest tray 8 on which a number of originals of the same size may be piled in a stack such that the leading end edges of the upper originals extend further forward than the leading ends of the lower originals; and all the originals are disposed with their information carrying surfaces facing downwardly.
  • a separating roller 9 which is formed on its periphery with gripping irregularities is appropriately rotated through a suitable clutch and power means when a main switch 30 (See FIG. 4) of the automatic original feed device 2 is turned on.
  • a roller 10 Disposed in slightly spaced-apart relation to the separating roller 9 is a roller 10 which does not rotate and which is mounted on a lever 11 connected for swinging motion about a pivot 11a.
  • the position of the lever 11 may be varied and set by means of a knob 12 and a screw 13 so as to adjust the space between the separating roller 9 and roller 10.
  • the space between the two rollers 9 and 10 is set such that only one of the originals on the table 8 can positively pass therethrough.
  • a pair of feed rollers 14 and 15 are disposed downstream from the separating roller means as seen in the direction of the movement of the originals.
  • the lower roller 14 is a normally driven rotating roller while the upper roller 15 is adapted to rotate in slaved relation when it is moved downwardly into contact with the lower roller 14.
  • the upper roller 15 is mounted on a lever 16 adapted to move in pivotable motion about a pivot 16A by means of a motor 163 which is connected to the circuit of print button 41.
  • a microswitch 17 has its actuator 17A adapted to project into the path of movement of the originals to detect the passing of the originals through the path and motor 29 is a main drive motor for powering the automatic original feed device according to the invention.
  • the original conveying and holding section 4 is shown in greater detail as having an endless belt 24 entrained over a drive roller 19, guide rollers 20, 21, and 22 and tensioning roller 23 for movement along a predetermined path in which a lower run of the belt 24 is maintained in contact with the original-receiving glass plate 18 of the duplicating machine proper l.
  • the drive roller 19, like the roller 9, is adapted through a suitable drive system, to be rendered operative upon depression of the main switch 30 of the automatic original feed device and rendered inoperative after lapse of a predetermined time interval following release of the trailing end of the original fed from engagement with the actuator 17A of the microswitch 17.
  • the lower run of the endless belt 24 is a loosened run while the upper run thereof is a tensioned run.
  • the original is fed by the lower run or loosened run of the belt 24.
  • a plurality of pressing rollers 43, 44 and 45 are arranged on the back side of the loosened lower run of the belt 24.
  • Each of the pressing rollers may be in the form of a single shaft or may consist of a number of balls connected together in a row.
  • the pressing rollers 43, 44 and 45 are supported at opposite ends for rotation and vertical movement by suitable support means fixed to the frame of the device. By their own weight or with the aid of springs ofa weak resilient force, the pressing rollers 43, 44 and 45 press the loosened lower run of the belt 24 downwardly.
  • the pressing down of the lower run of the belt 24 by the weight of the pressing rollers may be insufficient to achieve the desired conveying of the original because the weight of the pressing rollers may be unable to overcome the ten sion of the belt.
  • the original is subjected to a higher degree of frictional dragging by those portions of the lower run of the belt 24 which are disposed immediately below the pressing rollers and in the vicinity thereof, than by other portions of the belt, so that it is necessary that the original be positively pressed by these portions.
  • uniform pressure is applied to the original by such portions so that the original can be prevented from slipping out of a predetermined position or being brought out of alignment with the normal path of movement by properly adjusting the pressing force.
  • the original can be positively conveyed through a predetermined path and held in a predetermined position for duplication by means of this belt arrangement.
  • the original ejecting section 5 is shown as having an ejecting roller 25 adapted to rotate conjointly with the endless belt 24, and guide plates 26A and 268, in addition to the original receiving tray 7.
  • the original receiving tray 7 is maintained in an angular position as shown by two pins 27 and 28. By displacing the tray 7 slightly along the pin 27, the tray 7 can be released from engagement with the pin 28 and dropped into a position in which it is disposed on the case of the original conveying and holding section 4 as shown in the lower dash-and-dot lines in FIG. 1.
  • the main switch 40 of the duplicating machine proper 1 is depressed and the repeat dial 42 is manipulated to set a repeat means (not shown) at a number of duplicates to be produced from each original.
  • the main switch 30 of the automatic original feed device according to the invention is depressed to render the drive motor 29 operative to thereby rotate the separating roller 9, lower roller 14 and drive roller 19 for endless belt 24, which rollers are connected to the drive motor 29 by a suitable transmission system.
  • a stack of originals is piled on the original receiving tray 8 with the leading end edges of the upper originals extending forwardly a greater distance than those of the lower originals as shown in FIG. 2.
  • the uppermost original of the stack of originals is bitten by the separating roller 9 and removed from the rest of the originals of the stack, and moved further forwardly by the pair of feed rollers 14 and 15 till the leading end of the original is brought into engagement with the actuator 17A of the microswitch 17 rendering the microswitch l7 operative.
  • the original stops in its movement so that it remains stationary and stands by in this position on the stand-by section.
  • the leading end edge of the original moved again as aforementioned is gripped by the endless belt 24 and moved along the original receiving glass plate 18 of the duplicating machine proper 1.
  • the drive roller 19 is rendered inoperative stopping the endless belt 24 after lapse of a predetermined time interval following release of the trailing end of the original from the actuator 17A of the microswitch 17.
  • the original stops in an illuminating position and the photosensitive sheet stops in apredetermined position in the exposing position 34 as aforementioned, and the optical system 36 is moved to expose the photosensitive sheet to an optical image of the original. Exposing takes place a number of times corresponding to the number of duplicates to be produced at which the repeat means is set beforehand as aforementioned.
  • a photoelectric sensing means may be used to detect the passing of each original through a predetermined path without coming into contact with the original.
  • the separating roller 9 is caused through a suitable signal to start rotating again to remove the uppermost original from the stack of originals and feed the same to the feed rollers 14 and 15.
  • the microswitch 17 is actuated to render the original stationary and cause it to stop in the stand-by position in the manner of the first original.
  • the print button 41 may be automatically depressed and the second original disposed in the stand by position is moved to the illumination position.
  • the first original which has gone through the exposing operation is guided by the guide plates 26A and 26B and ejected by the ejecting roller on to the original receiving tray 7. This operation may be continued until all of the originals on rest tray 8 are exhausted whereupon machine land device 2 may be automatically shut off.
  • the stack of originals from the original rest tray 8 with their information carrying surfaces facing downwardly will be piled on the original receiving tray 7 in the same order but with the information carrying surfaces of the originals facing upwardly.
  • the printed photosensitive sheets ejected onto the duplicate receiving tray 39 through the discharging port 38 of the duplicating machine shown in FIG. 1 are successively piled in a stack with the image carrying surfaces of the duplicates facing upwardly.
  • the originals ejected and piled in a stack on the original receiving tray 7 and the duplicates discharged from the duplicating machine and piled in a stack on the duplicate receiving tray 39 after the operation are in the same order as the stack of originals piled on the original test tray before the operation. This greatly facilitates handling and sorting of the originals and duplicates after the operation.
  • the automatic original feed device which permits originals in sheet form to be automatically and continuously fed to the duplicating machine can be mounted as an attachment in unitary form on any duplicating machine commerically available nowadays.
  • An additional advantage lies in the fact that the arrangement by which the original conveying and holding section and the original ejecting section can be pivoted to expose the original receiving glass plate surface of the duplicating machine without removing the device from the duplicating machine, makes it possible to produce a duplicate or duplicates of a page or pages of a book by placing it directly on the glass plate while the device is still attached to the duplicating machine.
  • An automatic original feed device for mounting on electrophotographic duplicating machines comprising:
  • an original stand-by section connected to said machine at one side of the copying position and including:
  • an original conveying and holding section having a flat upper surface thereon and pivotable on said pivot means for resting on the copying position on said machine adjacent said stand-by section and including:
  • first conveying means for conveying each of the originals fed from said original stand-by section to the copying position on the machine
  • an original ejecting section disposed on the opposite side of the copying position from said original stand-by section and including:
  • the original conveying and holding section and the original ejecting section being connected to each other and pivotable as a unit about said pivot means on said stand-by section so as to permit access to the copying position of the duplicating machine without removing the device therefrom.
  • An automatic original feed device as set forth in claim 1 wherein said original rest tray is disposed on said stand-by section in an inclined position and supports a stack of originals piled thereon with the leading end edges of upper originals extending further forwardly in the feed direction than the leading end edges of lower originals, and said separating means comprises a pair of rollers arranged one above the other at the exit of said rest tray, the upper roller being normally driven to rotate while the other roller is adapted not to rotate, said two rollers being spaced apart from each other a distance such that only a single original can pass therebetween at a time.
  • An automatic original feed device as set forth in claim 1 wherein said first conveying means comprises an endless belt having an upper tensioned run and a lower loosened run and arranged such that its loosened run is brought into engagement with the copying posi tion of the duplicating machine, and said holding means comprises a plurality of pressing rollers disposed on the back side of the loosened run of the endless belt in pressing engagement therewith.
  • An automatic original feed device as set forth in claim 1 wherein said original ejecting section further comprises means for altering the path of movement of originals from the original rest tray to the original receiving tray such that the direction of movement of the originals is changed through more than 5.
  • An automatic original feed device as set forth in claim 1 wherein said original ejecting section further comprises a receiving tray holding means for holding said receiving tray on said original conveying and holding section by magnetic attraction when said original receiving tray is pivoted from said inclined position with respect to said original conveying and holding section to a rest position thereon.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Manual Feeding Of Sheets (AREA)
US00304979A 1971-11-13 1972-11-09 Automatic original feed device for electrophotographic duplicating machine Expired - Lifetime US3829083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46090301A JPS4856146A (de) 1971-11-13 1971-11-13

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JP (1) JPS4856146A (de)
DE (1) DE2255458C3 (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936041A (en) * 1973-12-26 1976-02-03 Ricoh Co., Ltd. Automatic original supply device for electronic copying apparatus
US3990695A (en) * 1974-12-09 1976-11-09 Xerox Corporation Sorting apparatus
US4023791A (en) * 1975-10-23 1977-05-17 Savin Business Machines Corporation Semi-automatic document feeder
US4062533A (en) * 1974-04-10 1977-12-13 Oce-Industries Inc. Photocopy machine
US4066255A (en) * 1976-07-23 1978-01-03 Addressograph-Multigraph Corporation Document transport system
US4137844A (en) * 1976-12-09 1979-02-06 Paulson Harold E Perfector printer press
DE2916305A1 (de) * 1978-04-23 1979-10-31 Canon Kk Kopierverfahren und kopiergeraet
US4213604A (en) * 1977-07-19 1980-07-22 Canon Kabushiki Kaisha Automatic original handling device
WO1981000246A1 (en) * 1979-07-11 1981-02-05 R Grace Document feed
US4420149A (en) * 1979-01-29 1983-12-13 Savin Corporation Automatic original document feeder for electrophotographic copier
US4439036A (en) * 1982-03-08 1984-03-27 The Mead Corporation Large document access for a scanning system of a copying machine
US4520977A (en) * 1982-09-29 1985-06-04 Eastman Kodak Company Apparatus for mounting a document feeder on a copier/duplicator
US4579444A (en) * 1984-12-06 1986-04-01 Xerox Corporation Document registration system
US4681312A (en) * 1985-04-23 1987-07-21 Xerox Corporation Sheet stacker
US4850581A (en) * 1982-07-28 1989-07-25 Canon Kabushiki Kaisha Automatic sheet supplying device
US5711595A (en) * 1995-08-23 1998-01-27 Gerbe; James Robert Illuminated serving tray
US5842692A (en) * 1995-08-10 1998-12-01 Rutishauser Data Ag Covered feed unit for feeding recording media into an office machine
CN110228722A (zh) * 2019-06-11 2019-09-13 上海电机学院 一种基于物联网的智能存取打印装置

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538667B2 (de) * 1974-03-12 1980-10-06
JPS5531554Y2 (de) * 1975-06-16 1980-07-28
JPS5230438A (en) * 1975-09-03 1977-03-08 Fuji Xerox Co Ltd Automatic discharge device for the original document
JPS5230439A (en) * 1975-09-03 1977-03-08 Fuji Xerox Co Ltd Automatic supply and discharge device for document to be copied
US4129295A (en) * 1976-12-29 1978-12-12 Savin Business Machines Corporation Semiautomatic document feeder
DE2904950C2 (de) * 1978-02-17 1984-12-06 Imtec Management Information Technology Ltd., Stanmore, Middlesex Fördereinrichtung für Blätter, Bögen, Karten o.dgl.
DE2954567C2 (de) * 1978-05-31 1995-04-06 Canon Kk Kopiergerät mit einer Vorlagenfördereinrichtung
US4264188A (en) 1978-05-31 1981-04-28 Canon Kabushiki Kaisha Control for multiple-mode copying apparatus
DE3050272C2 (de) * 1979-04-10 1985-04-18 Mita Industrial Co., Ltd., Osaka Zuführeinrichtung zur automatischen Zuführung von zu kopierenden Vorlagen
US4360263A (en) 1979-04-10 1982-11-23 Mita Industrial Company Limited Copying apparatus
JPS58126453U (ja) * 1982-08-16 1983-08-27 コニカ株式会社 シ−トフイルム類の回収装置
JPS59226360A (ja) * 1983-06-06 1984-12-19 Fuji Xerox Co Ltd 複写機用原稿送り装置
JPS6036242A (ja) * 1983-08-08 1985-02-25 Konishiroku Photo Ind Co Ltd 自動原稿送り装置
JPS6036241A (ja) * 1983-08-08 1985-02-25 Konishiroku Photo Ind Co Ltd 自動原稿送り装置
JPS60167033U (ja) * 1984-03-30 1985-11-06 京セラミタ株式会社 自動原稿送り装置
JPS60172150U (ja) * 1984-04-24 1985-11-14 株式会社リコー 原稿自動給送装置
JPH0745076Y2 (ja) * 1989-02-22 1995-10-11 三田工業株式会社 画像形成装置の原稿露光装置
JP2512068Y2 (ja) * 1990-01-16 1996-09-25 大日本スクリーン製造株式会社 製版カメラの撮影架

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389848A (en) * 1941-12-18 1945-11-27 Ditto Inc Paper handling mechanism for duplicating machines
US2813714A (en) * 1954-01-06 1957-11-19 Pitney Bowes Inc Sheet feeding and folding device
US3122040A (en) * 1959-12-07 1964-02-25 Lewis H Bishop Machine for perforating, scoring and slicing with feed means
US3506257A (en) * 1968-01-17 1970-04-14 Xerox Corp Document feeding apparatus
US3685905A (en) * 1971-04-22 1972-08-22 Xerox Corp Combined document feed and book copying apparatus
US3700231A (en) * 1970-09-21 1972-10-24 Copystatics Mfg Corp Document turn-around device for copying machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389848A (en) * 1941-12-18 1945-11-27 Ditto Inc Paper handling mechanism for duplicating machines
US2813714A (en) * 1954-01-06 1957-11-19 Pitney Bowes Inc Sheet feeding and folding device
US3122040A (en) * 1959-12-07 1964-02-25 Lewis H Bishop Machine for perforating, scoring and slicing with feed means
US3506257A (en) * 1968-01-17 1970-04-14 Xerox Corp Document feeding apparatus
US3700231A (en) * 1970-09-21 1972-10-24 Copystatics Mfg Corp Document turn-around device for copying machine
US3685905A (en) * 1971-04-22 1972-08-22 Xerox Corp Combined document feed and book copying apparatus

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936041A (en) * 1973-12-26 1976-02-03 Ricoh Co., Ltd. Automatic original supply device for electronic copying apparatus
US4062533A (en) * 1974-04-10 1977-12-13 Oce-Industries Inc. Photocopy machine
US3990695A (en) * 1974-12-09 1976-11-09 Xerox Corporation Sorting apparatus
US4023791A (en) * 1975-10-23 1977-05-17 Savin Business Machines Corporation Semi-automatic document feeder
US4066255A (en) * 1976-07-23 1978-01-03 Addressograph-Multigraph Corporation Document transport system
US4137844A (en) * 1976-12-09 1979-02-06 Paulson Harold E Perfector printer press
US4213604A (en) * 1977-07-19 1980-07-22 Canon Kabushiki Kaisha Automatic original handling device
DE2916305A1 (de) * 1978-04-23 1979-10-31 Canon Kk Kopierverfahren und kopiergeraet
US4420149A (en) * 1979-01-29 1983-12-13 Savin Corporation Automatic original document feeder for electrophotographic copier
WO1981000246A1 (en) * 1979-07-11 1981-02-05 R Grace Document feed
US4439036A (en) * 1982-03-08 1984-03-27 The Mead Corporation Large document access for a scanning system of a copying machine
US4850581A (en) * 1982-07-28 1989-07-25 Canon Kabushiki Kaisha Automatic sheet supplying device
US4520977A (en) * 1982-09-29 1985-06-04 Eastman Kodak Company Apparatus for mounting a document feeder on a copier/duplicator
US4579444A (en) * 1984-12-06 1986-04-01 Xerox Corporation Document registration system
US4681312A (en) * 1985-04-23 1987-07-21 Xerox Corporation Sheet stacker
US5842692A (en) * 1995-08-10 1998-12-01 Rutishauser Data Ag Covered feed unit for feeding recording media into an office machine
US5711595A (en) * 1995-08-23 1998-01-27 Gerbe; James Robert Illuminated serving tray
CN110228722A (zh) * 2019-06-11 2019-09-13 上海电机学院 一种基于物联网的智能存取打印装置

Also Published As

Publication number Publication date
JPS4856146A (de) 1973-08-07
DE2255458B2 (de) 1977-12-08
DE2255458C3 (de) 1978-08-10
DE2255458A1 (de) 1973-06-14

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