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WO1993004409A1 - Imprimante double face - Google Patents

Imprimante double face Download PDF

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Publication number
WO1993004409A1
WO1993004409A1 PCT/NL1991/000151 NL9100151W WO9304409A1 WO 1993004409 A1 WO1993004409 A1 WO 1993004409A1 NL 9100151 W NL9100151 W NL 9100151W WO 9304409 A1 WO9304409 A1 WO 9304409A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
image
roller
printing
waiting station
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.)
Ceased
Application number
PCT/NL1991/000151
Other languages
English (en)
Inventor
Oded Sagiv
Benzion Landa
Yoram Blum
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.)
Spectrum Sciences BV
HP Indigo BV
Original Assignee
Spectrum Sciences BV
Indigo BV
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
Priority to AU83385/91A priority Critical patent/AU8338591A/en
Priority to DE69130425T priority patent/DE69130425T3/de
Priority to JP51361291A priority patent/JP3356279B2/ja
Priority to US08/185,812 priority patent/US5552875A/en
Priority to PCT/NL1991/000151 priority patent/WO1993004409A1/fr
Priority to HK98114528.5A priority patent/HK1013339B/en
Application filed by Spectrum Sciences BV, Indigo BV filed Critical Spectrum Sciences BV
Priority to CA002115644A priority patent/CA2115644C/fr
Priority to EP91914774A priority patent/EP0598717B2/fr
Priority claimed from CA002115644A external-priority patent/CA2115644C/fr
Publication of WO1993004409A1 publication Critical patent/WO1993004409A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
    • G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters

Definitions

  • the deflector means includes a roller and a set of wheels engaging the roller and forming a nip through which the substrate is transported, the set of wheels being adapted to engage the roller at first and second positions, at the first position the angle of release of the substrate from the nip is such that it is deflected to the waiting station, and at the second position the angle of release of the substrate from the nip is such that the it is deflected to the output tray.
  • a method for printing images on first and second sides of sequential substrates utilizing apparatus having an image bearing roller and an impression roller forming a nip therebetween including the steps of: (a) passing a first substrate through the nip during a first revolution of the image bearing roller to print an image on the first side of a first substrate; (b) delivering the first substrate to a waiting station; (c) passing a second substrate through the nip during a subsequent revolution of the image bearing roller to print an image on the first side of the second substrate; and (e) passing the first substrate through the nip during the next revolution of the image bearing roller after the subsequent revolution to print an image on the second side of the first substrate.
  • a method for printing images on first and second sides of sequential substrates utilizing apparatus having an image bearing roller and an impression roller forming a nip therebetween including the steps of: (a) passing a first substrate through the nip during a first series of revolutions of the image bearing roller to print a plurality of color separation images on the first side of a first substrate; (b) delivering the first substrate to a waiting station; (c) passing a second substrate through the nip during a subsequent revolution of the image bearing roller thereby printing an image on the first side of the second substrate; and
  • Substrate 44 is initially fed through nip 45 from a spring-mounted tray 68 (located to the right of impression roller 42) which is adapted to hold individual sheets of paper or any other substrate suitable for receiving the developed image.
  • the uppermost sheet in tray 68 is engaged by a roller 70 which, in response to an appropriate control signal, rotates in a clockwise direction and causes the uppermost sheet to move laterally in the direction of nip 45.
  • the sheet is guided towards the nip by means of a fixed plate 72 and one or more pairs of wheels which are attached to plate 72 and to the end of an arm 74 which is pivotally attached to roller 70.
  • a gripper 76 mounted on impression roller 42, is operative to grip the leading edge of the substrate as it is fed to roller 42.
  • the timing of the closing of arm 104 is less critical, since the arm can be closed late allowing the substrate to buckle as shown in Fig. 6.
  • the resulting buckle improves the alignment by allowing the edge of the paper to butt against the grippers.
  • a guide 60 closely spaced from roller 42 is provided.
  • the substrate is then fed around impression roller 42 and through nip 45. It will be appreciated that in this pass through nip 45, it is the second side of the substrate which faces intermediate transfer member 42, and duplex image transfer is thereby attained. Since the leading edge of the substrate during duplex transfer had been the trailing edge
  • the second substrate While the first substrate is being delivered to the output tray, the second substrate is removed from the waiting station and delivered to the impression roller for printing on its second side. The second substrate is then delivered to the output tray. This process is repeated until all the required prints are completed.
  • the first side of a first substrate is printed and the substrate is delivered to waiting station 82. Then the first side of a second
  • the duplexer of the present invention is especially suitable for electronic collation in which a number of successive pages are printed with different images to form a set which is then bound by an optional finisher and delivered from the printer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

Appareil de reproduction pour impression à double face sur un substrat possédant un premier et un deuxième côtés ainsi que des faces avant et arrière. L'appareil de reproduction comporte un premier élément possédant une surface de support d'images adaptée pour supporter séquentiellement une première et une deuxième images, un deuxième élément adapté pour supporter le substrat de telle sorte que l'un des côtés de celui-ci soit mis en contact avec la surface de support d'images, face avant en premier, dans une zone de transfert et un appareil de transfert destiné à transférer la première image de la surface de support d'image vers le premier côté du substrat à la zone de transfert tout en fixant au moins partiellement l'image à celle-ci. L'appareil de reproduction comporte également un poste d'attente adjacent au deuxième élément destiné à recevoir le substrat après celui-ci et avant transfert de la deuxième image vers celui-ci et un poste de sortie destiné à recevoir le substrat après achèvement du transfert d'images vers celui-ci. L'appareil de reproduction comprend un déflecteur adjacent au deuxième élément capable de recevoir le substrat directement du deuxième élément et de dévier sélectivement le substrat vers le poste d'attente ou vers le poste de sortie pour acheminement vers celui-ci et un système de rouleaux associé avec le poste d'attente destiné à entraîner sélectivement la face arrière du substrat après son transport vers le poste d'attente de façon à renvoyer le substrat vers le deuxième élément. Le deuxième élément permet de transporter le substrat vers la zone de transfert, tandis que la deuxième image est transférée vers le deuxième côté du substrat.
PCT/NL1991/000151 1991-08-14 1991-08-14 Imprimante double face Ceased WO1993004409A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE69130425T DE69130425T3 (de) 1991-08-14 1991-08-14 Zweiseitiges druckgerät
JP51361291A JP3356279B2 (ja) 1991-08-14 1991-08-14 両面印刷機
US08/185,812 US5552875A (en) 1991-08-14 1991-08-14 Method and apparatus for forming duplex images on a substrate
PCT/NL1991/000151 WO1993004409A1 (fr) 1991-08-14 1991-08-14 Imprimante double face
HK98114528.5A HK1013339B (en) 1991-08-14 Duplex printer
AU83385/91A AU8338591A (en) 1991-08-14 1991-08-14 Duplex printer
CA002115644A CA2115644C (fr) 1991-08-14 1991-08-14 Imprimante duplex
EP91914774A EP0598717B2 (fr) 1991-08-14 1991-08-14 Imprimante double face

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/NL1991/000151 WO1993004409A1 (fr) 1991-08-14 1991-08-14 Imprimante double face
AU83385/91A AU8338591A (en) 1991-08-14 1991-08-14 Duplex printer
CA002115644A CA2115644C (fr) 1991-08-14 1991-08-14 Imprimante duplex

Publications (1)

Publication Number Publication Date
WO1993004409A1 true WO1993004409A1 (fr) 1993-03-04

Family

ID=27156518

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1991/000151 Ceased WO1993004409A1 (fr) 1991-08-14 1991-08-14 Imprimante double face

Country Status (2)

Country Link
AU (1) AU8338591A (fr)
WO (1) WO1993004409A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997009262A1 (fr) * 1995-09-08 1997-03-13 Indigo N.V. Appareil d'imagerie et dispositif de sortie perfectionne associe
US6363234B2 (en) 2000-11-21 2002-03-26 Indigo N.V. Printing system
US6438352B1 (en) 1998-05-24 2002-08-20 Indigo N.V. Printing system
US6823786B1 (en) 1999-11-07 2004-11-30 Hewlett-Packard Indigo B.V. Tandem printing system with fine paper-position correction
US6851672B1 (en) 2000-04-18 2005-02-08 Hewlett-Packard Indigo B.V. Sheet transport position and jam monitor
US6912952B1 (en) 1998-05-24 2005-07-05 Hewlett-Packard Indigo B.V. Duplex printing system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099759A (en) * 1981-06-08 1982-12-15 Xerox Corp Duplexing copy machine
US4428667A (en) * 1982-08-02 1984-01-31 Xerox Corporation Document deskewing system
EP0147341A2 (fr) * 1983-12-22 1985-07-03 Rhone-Poulenc Systemes Procédé de réproduction électrophotographique, avec développement inverse, sur un support conducteur à l'aide d'une poudre de développement magnétique monocomposant et dispositif pour la mise en oeuvre du procédé
US4568169A (en) * 1981-07-30 1986-02-04 Minolta Camera Kabushiki Kaisha Both surface recording system
US4639126A (en) * 1985-11-07 1987-01-27 International Business Machines Corporation Method for producing duplex copy sets from a duplex original set
US4806979A (en) * 1986-05-30 1989-02-21 Hitachi Koki Co., Ltd. Duplex printing machine
US4814822A (en) * 1987-06-08 1989-03-21 Xerox Corporation Method and apparatus for automatic "two-up" copying with intermediate latent image copiers
EP0342704A2 (fr) * 1988-05-20 1989-11-23 Canon Kabushiki Kaisha Appareil de formation d'images
EP0372294A1 (fr) * 1988-11-25 1990-06-13 Mita Industrial Co., Ltd. Mécanisme d'alimentation du papier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099759A (en) * 1981-06-08 1982-12-15 Xerox Corp Duplexing copy machine
US4568169A (en) * 1981-07-30 1986-02-04 Minolta Camera Kabushiki Kaisha Both surface recording system
US4428667A (en) * 1982-08-02 1984-01-31 Xerox Corporation Document deskewing system
EP0147341A2 (fr) * 1983-12-22 1985-07-03 Rhone-Poulenc Systemes Procédé de réproduction électrophotographique, avec développement inverse, sur un support conducteur à l'aide d'une poudre de développement magnétique monocomposant et dispositif pour la mise en oeuvre du procédé
US4639126A (en) * 1985-11-07 1987-01-27 International Business Machines Corporation Method for producing duplex copy sets from a duplex original set
US4806979A (en) * 1986-05-30 1989-02-21 Hitachi Koki Co., Ltd. Duplex printing machine
US4814822A (en) * 1987-06-08 1989-03-21 Xerox Corporation Method and apparatus for automatic "two-up" copying with intermediate latent image copiers
EP0342704A2 (fr) * 1988-05-20 1989-11-23 Canon Kabushiki Kaisha Appareil de formation d'images
EP0372294A1 (fr) * 1988-11-25 1990-06-13 Mita Industrial Co., Ltd. Mécanisme d'alimentation du papier

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997009262A1 (fr) * 1995-09-08 1997-03-13 Indigo N.V. Appareil d'imagerie et dispositif de sortie perfectionne associe
US6163676A (en) * 1995-09-08 2000-12-19 Indigo N.V. Imaging apparatus and improved exit device therefor
US6438352B1 (en) 1998-05-24 2002-08-20 Indigo N.V. Printing system
US6608979B1 (en) 1998-05-24 2003-08-19 Indigo N.V. Charger for a photoreceptor
US6912952B1 (en) 1998-05-24 2005-07-05 Hewlett-Packard Indigo B.V. Duplex printing system
US6823786B1 (en) 1999-11-07 2004-11-30 Hewlett-Packard Indigo B.V. Tandem printing system with fine paper-position correction
US6851672B1 (en) 2000-04-18 2005-02-08 Hewlett-Packard Indigo B.V. Sheet transport position and jam monitor
US6363234B2 (en) 2000-11-21 2002-03-26 Indigo N.V. Printing system

Also Published As

Publication number Publication date
AU8338591A (en) 1993-03-16

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