Including Pivoted Pack Holder Patents (Class 271/127)
  • Patent number: 5088715
    Abstract: A manual paper feed apparatus includes a pivotal paper feed plate, and a paper-receiving plate. The paper-receiving plate slides in a front-rear direction upon pivotal movement of the paper feed plate. The paper-receiving plate includes a separating member which is brought into contact with a cassette pickup roller to separate a sheet of paper picked up by a manual feed pickup roller upon forward movement of the paper-receiving plate, and a slip piece which slips into a space below the cassette pickup roller. The separating member is constituted by an elastic member.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: February 18, 1992
    Assignee: Konica Corporation
    Inventors: Akihiro Shibata, Kenichi Okayama
  • Patent number: 5078380
    Abstract: A copying machine includes an image-forming device and a cassette feeder accompanying a plurality of cassettes. The cassette comprises a body without a base and a base plate located at a base portion. When the cassette is inserted into the cassette feeder, a push-up member provided in the cassette feeder pushes up one end of the base plate of the cassette such that the top sheet of paper sheets stored in the cassette is brought into contact with a pick-up roller provided in the cassette feeder.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: January 7, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Osamu Kitazawa
  • Patent number: 5071111
    Abstract: A feeding device in accordance with the present invention includes an arm mounted such that one edge thereof is rotatably supported and is capable of moving freely in the horizontal plane, a rotating section rotatably supported by the other edge of the arm and is capable of rotating freely in the horizontal plane to at least two paper feed positions, i.e. longitudinal and lateral feed positions, and a pivotal paper holding plate that is capable of rising. A rotating device is rotatably mounted in the vicinity of a corner of the rotating section and moves back and forth in a straight line in a direction orthogonal to the paper feed direction and permits the rotating section to rotate.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: December 10, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenichi Iwamoto, Yuji Sugimoto, Toyoaki Namba, Masakatsu Itoigawa, Yoshihumi Shibano, Kenzi Okada
  • Patent number: 5056604
    Abstract: A device for extracting sheets seriatim from the top of a stack of sheets and feeding them to a downstream sheet-using device, includes a pivoted tray which supports a stack of sheets; a nudger roll disposed at a fixed location above the tray and with which the top sheet of the stack can be brought into contact to slide the top sheet in a sheet-feed direction by frictional engagement when the nudger roll is rotated in a feed direction; a retard pad mounted for pivotal movement about an axis at or near the movable end of a first lever of which its other end is mounted for pivotal movement about a fixed support, the pad being biased into frictional engagement with either the nudger roll or a separate sheet-feed roll, the retard pad having movable with it a first arm of which movement about the pivotal axis of the pad is effective to increase the mechanical bias on a pivotally-mounted second lever adapted to urge the tray towards the nudger.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: October 15, 1991
    Assignee: Xerox Corporation
    Inventor: Gerald M. Garavuso
  • Patent number: 5054759
    Abstract: In an apparatus for the feeding of individual sheets (1) into office machines (2) in which the individual sheets (1) form a stack (3) of sheets atop which rotatively-driven fixed delivery rolls (4) rest and from which individual sheets (1) can be drawn over separating corners (5) of a paper-receiving frame (6), the stack (3) of sheets lies on a spring-action swing plate (8) between lateral paper-guide frames (7a, 7b). The invention provides for selectively alternative use, for supporting the sheet stack (3), of either the fixed paper-receiving frame (6) or of a separate and additional paper cassette (12) which is engageable with the machine (2) such that the spacing between the separating corners (30) on the cassette (12) and the circumference of the delivery rolls (4), when the cassette is mounted on the machine (2), is the same as the normal spacing between the separating corners (5) on the paper-receiving frame (6) and the circumference of the delivery rolls (4).
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: October 8, 1991
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Gerhard Lohrmann, Michael Setz
  • Patent number: 5054762
    Abstract: A sheet feeder for an image forming apparatus implemented as a unit which is removable from a body of the apparatus and can be positioned relative to the apparatus body with accuracy. Side plates which form a part of a housing each has a bent portion through which a hole is formed, and a projection provided with a notch. The holes of the side plates are individually mated with positioning pins which are studded on two posts of the image forming apparatus, while the notches are individually mated with positioning pins which are affixed to a bottom panel of the apparatus.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: October 8, 1991
    Assignee: Ricoh Company, Ltd.
    Inventor: Yutaka Kodama
  • Patent number: 5052670
    Abstract: An image-forming machine comprising a conveying passage for conveying a sheet material through a transfer zone, a first and a second feed system for feeding the sheet material to the conveying passage, a first feed passage for conducting the sheet material delivered from the first feed system to the conveying passage, a second feed passage for conducting the sheet material delivered from the second feed system to the conveying passage, and a first and a second opening-closing member for opening and closing the first and second feed passages. Various improvements are made on the first and second opening-closing members.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: October 1, 1991
    Assignee: 501 Mita Industrial Co., Ltd.
    Inventors: Yoshinori Makiura, Tadakazu Ogiri, Shigeki Hayashi, Naoyuki Ishida, Masami Fuchi, Hiroaki Nakamura, Katsuhide Yamaguchi, Hiroshi Kubota
  • Patent number: 5052673
    Abstract: A sheet feed device for feeding sheets from a stack to a machine, such as a copier, is provided with rollers for feeding the top sheet of the stack to the entrance of the machine. When a sheet is being fed through the machine, the presence of the sheet is sensed and used to generate a signal to disengage the rollers from the stack to thereby ensure precise feeding of the sheets.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: October 1, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Tokuda, Shigeo Ishikawa, Toshiaki Sugiura, Hikaru Kaga
  • Patent number: 5046713
    Abstract: A document imprinting device for imprinting on documents such as checks comprises a frame, a document feeding mechanism mounted on the frame for sequentially feeding documents, a conveying mechanism for conveying a document from the document feeding mechanism along a document conveyance path, an imprinting mechanism for imprinting the documents conveyed along the document conveyance path, and a sensing mechanism positioned along the document conveyance path for sensing the position of the documents and for triggering the imprinting mechanism such that the document is imprinted at a desired location on the document.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: September 10, 1991
    Assignee: Technitrol, Inc.
    Inventor: N. Allen Cargill
  • Patent number: 5046714
    Abstract: There is disclosed a paper feeder for a copying machine, including a paper feeding tray sub-member having guiding projections and stoppers for properly loading a paper feeding tray, a pivot for pivotally mounting the paper feeding tray sub-member in the position adjacent to a paper guide, a lever mounted on the underside of the paper feeding tray sub-member, and a slanting position fixing member attached to the body of the copying machine for fixing the lever and thus the slanting position of the paper feeding tray sub-member.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: September 10, 1991
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Nag-Hyo Hwang
  • Patent number: 5040780
    Abstract: In a sheet feeding apparatus for separating individual sheets (1b, 1c) of different stiffness from stacks (1d) thereof, the stack is pressed under the urgency of a spring force against separating rollers (9) and the sheet supply container (1) has an inclined front wall surface (10) on its front wall (4) upon which the stacked sheets are supported. A pair of arms (12) carrying separating elements (3) on their lower ends are carried on the supply container side wall (1a) for substantially parallel movement therealong. The arms (12) are implemented as linearly-movable switch sides (13) which are reciprocally displaceable between a lowered position in which the separating element end surfaces (15) rest against the supply container front wall surface (10) or the front region (11) thereof, and an upper or raised position in spaced apart relation to and providing a well-defined clearance (16) relative to the topmost sheet in the stack (1d).
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 20, 1991
    Inventors: Gerhard Lohrmann, Kurt Rohrer
  • Patent number: 5033729
    Abstract: The present invention is directed to a mechanism for the handling of and the singulating of a stack or plurality of aligned and substantially flat materials such as for example, sheets of paper, cards, printed flyers, envelopes, checks, business cards, labels, other printed documents and the like. There is incorporated into the mechanism novel systems and assemblies which control the rate of the advance of the stack of materials, which advance is effected by an amplitude or magnitude of a unidirectional jogging motion. The magnitude is a function of the attitude of the stack or the angle formed with the horizontal of the leading sheet of the stack. There is also provided a pulsing mechanism for pulsing, synchronously with jogger belts of an input conveyor assembly for joggingly advancing the plurality of flat materials, the first singulator assembly which pulsing enhances the action of singulation of the plurality of flat material.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: July 23, 1991
    Inventor: Christopher A. Struthers
  • Patent number: 5029838
    Abstract: A paper feeder for an image duplicating machine such as a copying machine or the like is provided with a handle for carrying the image duplicating machine pivotally attached to the outer surface of the machine body to be raised, a paper holding mechanism for holding the paper for image duplicating set within the paper feeding portion, and a communicating mechanism for actuating the paper holding mechanism in cooperation with the raising operation of the handle.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: July 9, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hisashi Kunihiro
  • Patent number: 5026041
    Abstract: The present invention relates to an automatic cut sheet feeding apparatus for feeding a stack of sheet one by one into a printer, and particularly to an automatic sheet feeding apparatus used for a printer for making an impact print onto a sheet positioned on a platen by a wire dot, shuttle, or other methods. In this invention, the positive rotation of the sheet feed motor is transmitted to a sheet feed roller through a rotation transmission mechanism to rotate the sheet feed roller, thereby sending one of sheet on a pressure plate to a printer unit at a time.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: June 25, 1991
    Assignee: Daiwa Seiko, Inc.
    Inventors: Koichi Kitazume, Kimikazu Arai
  • Patent number: 5026042
    Abstract: A sheet feeder for handling envelopes and the like in which a flexible retard pad projects into the feeder discharge opening, the upper part of the pad being unsupported with the lower part supported in an inclined position so that on feeding movement of an envelope from the tray, the leading edge of the topmost envelope strikes the unsupported part of the pad to deflect the pad out of the way while the leading edges of other envelopes in the tray that are carried forward by feeding of the topmost envelope engage the supported part of the retard pad and are prevented by the pad from being fed.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: June 25, 1991
    Assignee: Xerox Corporation
    Inventor: Donald P. Miller
  • Patent number: 5012294
    Abstract: An image forming apparatus in accordance with the invention includes a body for the device that performs an image forming operation, and a receiving device provided on a rear part of the body, for receiving a paper feeding member. The receiving device includes a guide member which supports the paper feeding member and shifts between a first position where the paper feeding member is in a sharply inclined position, and a second position where the paper feeding member is held in a lowered position. The guide member is designed to shift in response to feeding member insertion, attachment and removal operations such that forces are provided to aid in performing these operations.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: April 30, 1991
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Junya Sasabe, Masao Sugimori
  • Patent number: 5009410
    Abstract: A paper feeding system which comprises a paper rest rotatable around a support shaft provided on a main body; a pressure spring for pushing the paper rest to rotate toward a paper feed roller located above the paper rest; a baffle plate for preventing paper from shifting forward, provided on the main body at a position juxtapositioned to the leading end of the paper rest, with a clearance to allow the paper rest to rotate about the support shaft; paper stop ribs projecting from the surface of the baffle plate and running in the direction of the rotation of the paper rest; and notches formed in the leading end with respect to the paper feeding direction of the paper rest, permitting the ribs to interlock in the notches when the paper rest is rotated.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: April 23, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihalu Fujii, Yukitoshi Fujita
  • Patent number: 5005820
    Abstract: A paper bin assembly including a movable bottom tray for holding a stack of print receiving material, such as paper. The assembly is designed for insertion into a machine using sheets of paper, such as a copier or printer. A leaf spring is used to move the tray upwardly to keep the top sheet of the stack in position for being fed from the stack by a paper feeding mechanism. As sheets are fed from the stack, the spring continues to provide the top sheet in position, and continues to provide a correct normal force between the paper feeding mechanism and the top sheet. This is accomplished over a wide range of paper size and density by affording an adjustment mechanism to vary the spring rate. The adjustment mechanism involves a movable spring support member which moves in one direction relative to a fixed spring support member, and by providing an offset in a second dimension between the two spring support members.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: April 9, 1991
    Assignee: International Business Machines Corporation
    Inventor: Michael C. Leemhuis
  • Patent number: 5004217
    Abstract: A paper feeding device for a paper cassette of an image processing apparatus. The paper cassette is mounted at a specific position or the image processing apparatus in a manner permitting the cassette to be pulled out. A preliminary feed roller feeds the paper on the paper cassette toward a feed roller which is normally energized in a paper pressing direction. When the paper cassette is mounted in the image processing apparatus, the document setting board disposed in the paper cassette is upwardly turned by a pressing mechanism. When the paper cassette is pulled out, the feed roller from the paper cassette is turned in reverse direction. A feed channel to guide the paper from the paper cassette is formed in a curved manner, and a normally turned delivery roller is provided inside the curved channel.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: April 2, 1991
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Atsushi Kano, Masayuki Mizuno, Manabu Kajiwara, Kenji Sakaue, Yuji Abe, Kazuo Nakamura
  • Patent number: 5002266
    Abstract: Image forming apparatus including sheet feeding apparatus, sheet conveying apparatus, sheet delivering apparatus, structure for supporting the sheet conveying apparatus and sheet delivering apparatus and having an opening side, sheet storing apparatus, and structure for guiding the sheet storing apparatus such that the sheet forming apparatus is detachable from the sheet feeding apparatus at the same opening side.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: March 26, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Kikuchi, Seiji Sagara
  • Patent number: 4995601
    Abstract: A sheet feeding device for use in an image forming apparatus provided with a sheet support plate and one or more rotary members for separating and feeding sheets. A recessed portion is formed on the sheet support plate in a position opposing to each rotary member. A detachable auxiliary member is provided to be fitted in the recess to form a plane coplanar with that of the sheet support plate. An engaging device can be provided, to engage with a step portion formed in a cassette housing portion of the apparatus to keep the cassette from being entirely removed from the housing. The engaging device may, for example, include an elastic part and an engaging part integrally molded with each other.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: February 26, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Ohashi, Yoshikuni Toyama, Kazuo Kagiura, Hiroyoshi Maruyama, Tatsuya Shiratori, Masanari Shirai, Eiichi Ando
  • Patent number: 4991830
    Abstract: A paper supply apparatus having a main recording paper stacking table having its front end disposed below a paper pressing portion of the paper supply roller, and an auxiliary recording paper stacking table disposed above the main recording paper stacking table. The front end of the main recording paper stacking table is urged toward the paper pressing portion of the paper supply roller or away from the paper pressing portion of the paper supply roller by an oscillation device for oscillating the main recording paper stacking table.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: February 12, 1991
    Assignee: Konica Corporation
    Inventor: Toshio Yamanaka
  • Patent number: 4978112
    Abstract: A sheet feeder is disclosed, which is mounted in a printer for feeding cut printing sheets one by one to a printing position in the printer. The sheet feeder comprises first and second sheet accommodation sections for accommodating respective stacks of printing sheets. First and second feed roller mechanisms are provided for the respective sheet accommodation sections. These roller mechanisms selectively receive a drive torque from a single reversible drive motor via a selective coupling mechanism. The selective coupling mechanism senses the direction of rotation of the drive motor, and selectively couples the drive motor to either one of the first and second roller mechanisms according to the sensed direction of rotation.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: December 18, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeshi Yokoi
  • Patent number: 4966356
    Abstract: A sheet feed apparatus of a recording apparatus, for feeding a sheet one-by-one from a stack of cut sheets, includes cassettes which are stacked one above the other. Each cassette has a common sheet sub-passage passing through the cassette from bottom to top. The sub-passages are aligned to form a common sheet feed passage which passes through the stack of the cassettes from bottom to top when all the cassettes are set in a normal position within the recording apparatus. Sheet feed passages formed in the cassettes are disposed end-to-end.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: October 30, 1990
    Assignee: Fujitsu Limited
    Inventors: Keiji Ohyabu, Shinichi Watarai, Hideaki Sano
  • Patent number: 4966358
    Abstract: A feeding apparatus for a printer wherein an uppermost sheet of a sheet stack placed on a support member is delivered by a feed roll in contact with the uppermost sheet, through a clearance formed between a presser member which engages the upper surface of the uppermost sheet, and an elastic member which is disposed adjacent to the presser member for abutting contact with the edges of the sheet stack. The apparatus includes a support mechanism for supporting the presser and elastic members such that the two members are movable toward and away from each other, and a biasing spring for biasing the two members toward each other. The relative position of the presser and elastic members and the amount of the clearance therebetween during a normal sheet feeding operation are determined by a stopper device.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: October 30, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takeshi Yokoi, Hiroyasu Kuragairi, Shigeo Nakamura, Tamotu Kato, Kazuo Umemura, Hiroshi Yamanaka
  • Patent number: 4940222
    Abstract: A paper cassette which stores a number of types of media on a media load plate which is rotatable and the other end of the media load plate is rotated up and down by a reset arm and performs paper feed with the media pushed against a hopping roller by a spring which pushes the media load plate upwards. The paper cassette further includes an auxiliary resilient member which pushes the reset arm up, a sub-arm having one end which abuts against the auxiliary resilient member and rotates together with the auxiliary resilient member and a regulator provided in the range of rotation of the sub-arm for regulating the rotation of the sub-arm in accordance with the size of the media.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: July 10, 1990
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Mikihiko Maeno, Yukio Ohta, Yoshiharu Momiyama, Hisao Ono, Katsumasa Takahata, Kazuyuki Ozono, Makoto Shimizu, Mikio Yamamoto
  • Patent number: 4925177
    Abstract: An automatic paper feeder presses the surface of copying paper loaded on a paper loading plate in a paper cassette against a paper feeding roller, and feeds the paper sheet by sheet in accordance with the rotation of the roller. When a paper detector provided at a downstream side of the roller does not detect the paper within a specified period of time after starting a paper feeding operation, the automatic paper feeder rotates the roller in the reverse direction, at the same time releasing the pressure between the paper and the roller, and then increases the pressure and rotates the roller in the forward direction to restart the paper feeding operation.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: May 15, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Minoru Nakamura, Masazumi Ito
  • Patent number: 4900005
    Abstract: A sheet feed apparatus for a copying machine comprises a cassette for holding a stack of sheets to be fed. The cassette is in the form of an open-topped housing containing a base plate for supporting the stack of sheets. A handle is provided which is coupled to a mechanism for raising, preferably tilting, at least part of the base plate right out of the cassette housing to facilitate loading sheets within the tight tolerances of the cassette housing. A rear registration guide and a pair of relatively small side guides are provided which do not impede stack loading but allow the stack to be positioned sufficiently accurately that when the handle--and hence the base plate--is lowered the stack is able to enter the cassette housing without further adjustment.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: February 13, 1990
    Assignee: Xerox Corporation
    Inventors: Richard C. Blyth, Jeffrey J. Masters, Ian Hirst, Leonard V. Gates
  • Patent number: 4896871
    Abstract: A sheet feeder for a laser printer or similar image recording apparatus which is selectively operable in an automatic sheet feed mode and a manual sheet feed mode includes a manual feed guide plate which is located above a feed tray or a cassette. A presser member is mounted on the guide plate to be movable between an operative position where its front end portion intervenes between a feed roller and a friction pad and an inoperative position where it does not do so. When the presser member is moved toward the feed roller until its front end portion intervenes between the feed roller and the friction pad, the friction pad is physically separated from the feed roller and, instead, the front end portion of the presser member is brought into pressing contact with the feed roller. In this condition, a paper sheet inserted by hand on and along the manual feed guide plate is pressed against the feed roller by the presser member and fed stably by the rotation of the feed roller.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: January 30, 1990
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroyuki Idenawa
  • Patent number: 4888617
    Abstract: An image recording device for forming an image on an image receptive member includes a casing for storing a stack of image receptive sheets, a sheet feed roller for delivering one image receptive member at a time from the casing, a movable plate disposed in the casing and displaceable toward the sheet feed roller as the number of the image receptive members in the casing is reduced, and a detector mechanism for detecting a predetermined amount of displacement of the movable plate. An image recorded on a photosensitive member is transferred to the image receptive member delivered by the sheet feed roller.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: December 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tugio Okuzawa
  • Patent number: 4872660
    Abstract: A sheet feed device installed in a copier or like recording apparatus for selectively feeding sheets in an automatic and a manual mode. The device include a sensor sensitive to a movement of a manual insertion tray to an operative position away from an inoperative one. When the sensor has sensed such a movement of the tray while a sheet cassette is in a sheet feed position, a drive mechanism which is driven by a DC motor shifts the sheet cassette from the sheet feed position to a standby position. The tray is made up of a front tray and a rear tray which is connected to the front tray in an upward rotatably manner. While the tray is attached to the sheet feed position, a tray guide guides the movement of the front tray to the sheet feed position.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: October 10, 1989
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiaki Kameyama, Yuichi Kobayashi
  • Patent number: 4870285
    Abstract: A cassette for storing an image recording medium includes a casing for housing the image recording medium therein, and a cover openably and closably mounted on the casing for holding the image recording medium in a light-shielding manner in the casing. A resilient member such as a leaf spring or a sponge body is disposed in the casing for placing the image recording medium thereon. Alternatively, a lifter is operatively coupled between the cover and the casing for placing the image recording medium thereon. When the cover is opened in a device having a sheet feed system, the image recording medium can be brought by the resilient member or the lifter into a position facing the sheet feed system and then fed out of the casing by the sheet feed system.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: September 26, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Ohgoda
  • Patent number: 4853713
    Abstract: An improved sheet supply cassette for a compact printer of the kind having a housing, a sheet feed assembly for moving a sheet from a sheet supply region to, and through, a print zone and a device for printing on sheet media at the print zone. The sheet supply cassette is coupled to the bottom of the printer and includes top, bottom and side walls forming a sheet supply region. The bottom wall of the cassette has a hinge-type construction wherein cantilever spring means couple and upwardly bias a movable wall segment with respect to a fixed rear segment of the bottom wall so as to urge sheets into a feed position.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: August 1, 1989
    Assignee: Eastman Kodak Company
    Inventors: Michael J. Piatt, Kevin L. Houser
  • Patent number: 4853711
    Abstract: A compact printer of the kind having a sheet media print path to and through a print zone and an assembly for printing on media at the print zone includes a sheet cassette that is coupled to the bottom of the printer housing and rotatable on an axis generally normal to the bottom of the printer between: (i) a position with cassette edges generally flush with the side walls of the printer and (ii) a position wherein the length dimension of a supported sheet media stack is operatively aligned with the print path.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: August 1, 1989
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Piatt
  • Patent number: 4838535
    Abstract: Disclosed is a sheet feeding device for printers and the like, which comprises a detachable holder for thick cut sheets. In this device, thin ordinary cut sheets, supported in a pile by paper supporting means, are delivered one by one in a sheet feeding direction by feed rollers, which are in contact with the uppermost one of the sheets. In feeding relatively thick cut sheets, such as postal cards and other cards, the holder carrying the sheets thereon is detachably mounted on the supporting structure. The holder includes a supporting member for supporting the leading ends of the thick cut sheets, with respect to the sheet feeding direction. The supporting member has a slanting or curved guide surface. As the feed rollers rotate in contact with the uppermost one of the thick cut sheets, the sheets are delivered, sliding on the guide surface.
    Type: Grant
    Filed: February 4, 1987
    Date of Patent: June 13, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takeshi Yokoi, Toshiki Morita
  • Patent number: 4830353
    Abstract: A device for discharging sheets has a holder for a stack of sheets such that the stack is pressed against a conveyor roller disposed at a fixed location above the holder. The holder is pivotably secured to a movably mounted support with the pivot axis being parallel to the roller axis and being situated between the roller and the center of gravity of the holder and straight beneath the center of gravity of the stack. Springs are connected to the support which exert an upwardly directed force on the holder. As a result of this configuration, the stack, irrespective of its size, is pressed against the conveyor roller with a substantially constant force and the sheets are discharged in substantially the same direction.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: May 16, 1989
    Assignee: Oce-Nederland B.V.
    Inventors: Johannes S. Hendriks, Gerardus A. J. Koeleman, Franciscus J. H. Seelen
  • Patent number: 4815724
    Abstract: A sheet feeding mechanism includes a receiving member, a feed member for feeding sheets from a stack thereof on the receiving member, and an overlapping feed preventing device including a roller to be rotated in a predetermined direction and a friction member cooperating with the roller. In relation to the friction member, a device is provided for substantially preventing the leading end of a fed sheet from contacting that part of the friction member which is upstream, in the sheet feeding direction, of the nipping site between the friction member and the roller.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: March 28, 1989
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Yasuji Sumida, Hiroshi Kajita, Koji Ujino, Atsushi Kano, Takashi Maekawa, Kiyotaka Shibata
  • Patent number: 4813612
    Abstract: A paper feeding device having a document tray attached to a specified position of an image processing apparatus, a paper cassette mounted onto a specific position in the image processing apparatus in a manner that can be pulled out, and a preliminary feed roller to carry the paper set on the document tray toward a feed roller which is normally energized in paper pressing direction. When a sheet of paper is inserted, the preliminary feed roller is moved in the opposite direction against the energizing force under a balanced condition in transversal direction by a guide member which is turned upward. When the paper cassette is mounted in the image processing apparatus, the document setting board disposed in the paper cassette is upwardly turned by a pressing mechanism. When the paper cassette is pulled out, the feed roller to feed out paper from the paper cassette is turned in reversed direction.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: March 21, 1989
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Atsushi Kano, Masayuki Mizuno, Manabu Kajiwara, Kenji Sakaue, Yuji Abe, Kazuo Nakamura
  • Patent number: 4798316
    Abstract: A sheet store, particularly for banknotes, comprises a container having an opening through which sheets can pass closed by a shutter. A pressure member is positioned in the container. The pressure member is biassed by two springs connected in series. A clamp is provided selectively to restrain the influence of one spring allowing two bias forces to be applied to the pressure member.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: January 17, 1989
    Assignee: De La Rue Systems, Limited
    Inventors: Harvey G. Martin, Roger Pilling, Steven M. Hosking
  • Patent number: 4793606
    Abstract: A paper feeding device for a printer, which is constituted by a paper feeding tray and a tray receiver. The paper feeding tray has a rotatable hopper plate supported at the bottom thereof, a hopper shaft disposed at the lower surface of the front end of the hopper plate, two moving levers respectively connected to two ends of the hopper shaft, and movably supported by two sides of the paper feeding tray, guide grooves formed in the two sides in the tray fitting direction, two movable members supported by the two guide grooves, and have outwardly extending securing portions, and a spring disposed between the movable levers and the movable members, and for pushing up the hopper plate through the hopper shaft with respect to the movable lever.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: December 27, 1988
    Assignee: Seikosha Co., Ltd.
    Inventors: Tadashi Yasuoka, Hidetoshi Kodama
  • Patent number: 4786042
    Abstract: An adjustable sheet cassette for use in apparatus feeding sheets such as in an automatic copier or printer comprises a sheet stack support platform capable of supporting stacks of sheets of a plurality of length and width dimensions, sheet width and length dimension representing members on the cassette, each independently movable to a plurality of positions representing a plurality of sheet width and length dimensions which are automatically positioned to represent the sheet width and sheet length dimensions of the stack of sheets on the platform with their position being detected by detectors on the main apparatus and a controller to determine the length and width dimensions of the copy sheets in the cassette thereby enabling the apparatus to automatically select the correct cassette to supply sheets for a printing operation. In a preferred embodiment a binary code is provided which represents the sheet length and width which is decoded by the controller.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: November 22, 1988
    Assignee: Xerox Corporation
    Inventor: Denis J. Stemmle
  • Patent number: 4772007
    Abstract: This specification discloses a cut sheet loading device in a cut sheet holding and containing device used in a recording apparatus such as a printer or a copying apparatus.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: September 20, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventor: Makoto Kashimura
  • Patent number: 4768772
    Abstract: The invention is an improved design for a paper supply cassette for use in a copying apparatus. The paper supply cassette includes an arrangement to settle the positional relation between the leading end of the copy paper inside the cassette and the paper supply mechanism within the copy apparatus. The copy paper cassette and copy apparatus designed to permit the insertion of the cassette into the apparatus without the necessity of having to open the front cover of the apparatus.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: September 6, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yoshio Ochiai, Mamoru Umeki
  • Patent number: 4765605
    Abstract: A paper holding bin including a movable bottom tray for holding a stack of print receiving material such as paper. The bin is part of a machine using sheets of paper such as a copier or printer. The front edge of the paper stack is positioned at the front edge of the tray and against the front wall of the bin. A biasing spring is used to move the tray upwardly along the front wall of the bin until the top sheet of the stack bears against a paper feed roll. As sheets are fed from the stack, the spring continues to bias the tray upwardly so as to keep the top sheet of the stack against the feed roll. Cams of circular arc are provided at the rear edge of the tray, extending upwardly therefrom, to bear against the rear wall of the bin. In that manner a rolling pivot point is provided so that the front edge of the tray remains virtually equidistant from the front edge of the bin, regardless of whether the stack is large or small.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 23, 1988
    Assignee: International Business Machines Corporation
    Inventor: Perry E. Abbott
  • Patent number: 4763891
    Abstract: A sheet feed device for use with a sheet feed tray of the type having a movable bottom plate and a tray cover holds the bottom plate in a raised, sheet feed position whenever the tray cover is closed, and in a lowered, sheet supply position whenever it is open. A reversible motor is drivably connected by gears or a sprocket and chain device to an arm which is adapted to raise and lower the bottom plate. The motor is controlled responsive to an output of a tray cover position sensor which senses an open position and a closed position of the tray cover.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: August 16, 1988
    Assignee: Ricoh Company, Ltd.
    Inventor: Yutaka Kodama
  • Patent number: 4750726
    Abstract: In a sheet feeding system for a copier, for the sequential separation and feeding of individual sheets from a stack of sheets by an impact type sheet feeder, there is provided a plural mode stack repositioning system for automatically repositioning the top sheet of the stack of sheets into an optimum feeding position relative to the impact sheet feeder, which optimum feeding position is closely adjacent to, but slightly spaced below, a maximum limit position of the top of the stack. This stack repositioning system further provides a retard repositioning mode in which the stack of sheets is automatically lowered into a retard position after each sheet feed has been initiated, which retard position is substantially below the optimum feeding position, in response to a sheet feeding sensor detecting a sheet being successfully fed from the stack by the impact sheet feeder and acquired by a take-away feeding system.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: June 14, 1988
    Assignee: Xerox Corporation
    Inventor: John H. Looney
  • Patent number: 4750727
    Abstract: A sheet feeder for a copier for the sequential separation and feeding of individual sheets from a stack of sheets with an impact type sheet feeder with flexible frictional flapper blades, a preprogrammed drive for automatically moving the sheet stacking tray towards or away from the sheet feeder, a reference stop automatically limiting the movement of the top of the stack relative to the feeder, and a programmed positioning mode for automatically slightly lowering the tray into an optimum feeding position in which the top of the stack is maintained at a substantially constant level position relative to the feeder, closely adjacent, but slightly spaced below, the limit position, and automatically programmed repositioning to maintain the optimum feeding position and to compensate for the reduction in the height of the stack as sheets are fed, and to provide improved double sheet feed prevention by cycling the tray through small up and down movements coordinated with the feeding of sheets from the stack, for mov
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: June 14, 1988
    Assignee: Xerox Corporation
    Inventor: John H. Looney
  • Patent number: 4744472
    Abstract: Pile table for a small offset printing machine and for receiving a pile of flat workpieces to be printed, the workpieces, respectively, being of nonuniform thickness over the area thereof, includes a pile carrying plate, a double pivot bearing pivotally mounting the pile carrying plate, the double pivot bearing having a first swivel axis extending in a direction in which the flat workpieces are transported in the printing machine and a second swivel axis extending transversely to the direction, and an actuating lever secured to the pile carrying plate for manually swivelling the plate.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: May 17, 1988
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Reiner Pfister
  • Patent number: 4740817
    Abstract: A picture recording apparatus laser beam printer wherein a cassette, accommodating paper for receiving a transferred image, is loaded or unloaded on a front side of a housing of the printer. The conveyance direction of the paper accommodated in the cassette is reversed so as to be supplied to a transfer section by a paper separation reversal guide section. The conveyance direction of the paper is further reversed so as to be discharged on a tray in manner such that a forward end of the paper is located on a front surface side and an image transfer surface of the paper is faced downwardly. A manual paper feeding section is provided on the front side of the housing. A major portion of the cassette can be accommodated inside the housing whereby and the installation area can be reduced.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: April 26, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Suzuki, Seiji Yonekura, Masayoshi Furuichi
  • Patent number: 4728094
    Abstract: A paper feeding cassette setting arrangement which is so arranged that the action point of a pushing arm is pulled by a spring so as to push up a paper tray only when the paper feeding cassette is set in the copying apparatus. The operator has only to push in the paper feeding cassette when the cassette is desired to be set in the copying apparatus, and also the operator has only to pull out the paper feeding cassette when the cassette is desired to be taken out of the copying apparatus since the cassette has been already pulled out to some extent, with the lock thereof being released. A pushing arm may rotate orthogonal to the paper feeding direction.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: March 1, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takeshi Yoshida