EP0367048A3 - Printing form with parts that can be repeatedly activated and removed - Google Patents

Printing form with parts that can be repeatedly activated and removed Download PDF

Info

Publication number
EP0367048A3
EP0367048A3 EP19890119545 EP89119545A EP0367048A3 EP 0367048 A3 EP0367048 A3 EP 0367048A3 EP 19890119545 EP19890119545 EP 19890119545 EP 89119545 A EP89119545 A EP 89119545A EP 0367048 A3 EP0367048 A3 EP 0367048A3
Authority
EP
European Patent Office
Prior art keywords
areas
printing form
excited
switching element
charged
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
EP19890119545
Other languages
German (de)
French (fr)
Other versions
EP0367048B1 (en
EP0367048A2 (en
Inventor
Albert Engl
Peter Meinke
Herbert Stöckl
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0367048A2 publication Critical patent/EP0367048A2/en
Publication of EP0367048A3 publication Critical patent/EP0367048A3/en
Application granted granted Critical
Publication of EP0367048B1 publication Critical patent/EP0367048B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1058—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by providing a magnetic pattern, a ferroelectric pattern or a semiconductive pattern, e.g. by electrophotography

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

Die Druckform umfaßt eine Halbleiterschicht. In dieser werden durch Dotierung kapazitive oder induktive Bereiche erzeugt. Jedem dieser Bereiche ist ein selektiv ansteuerbares elektronisches Schaltelement zugeordnet. Mit dem Schaltelement kann entsprechend dem zu druckenden Motiv der jeweilige kapazitive oder induktive Bereich aufgeladen bzw. erregt werden. In diesem Zustand können über eine entsprechende Einfärbevorrichtung dem Formzylinder Farbe, beispielsweise Ferro-Fluidfarbe, zugeführt werden, die dann an den erregten bzw. geladenen Bereichen haften bleibt. Durch Anlegung der Steuerleitungen an Masse oder an entgegengesetzte Polaritäten ist eine Entladung möglich. Ladung und Entladung können auch während des Betriebes vorgenommen werden. The printing form comprises a semiconductor layer. Capacitive or inductive areas are generated in this by doping. A selectively controllable electronic switching element is assigned to each of these areas. The respective capacitive or inductive area can be charged or excited with the switching element in accordance with the motif to be printed. In this state, a suitable inking device can be used to supply the forme cylinder with ink, for example ferro fluid ink, which then adheres to the excited or charged areas. Discharge is possible by connecting the control cables to ground or opposite polarities. Charging and discharging can also be carried out during operation.

EP89119545A 1988-10-29 1989-10-21 Printing form with parts that can be repeatedly activated and removed Expired - Lifetime EP0367048B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836931A DE3836931C2 (en) 1988-10-29 1988-10-29 PRINT FORM FOR A PRINTING MACHINE WITH REPEATABLE ACTIVATIBLE AND DELETABLE AREAS
DE3836931 1988-10-29

Publications (3)

Publication Number Publication Date
EP0367048A2 EP0367048A2 (en) 1990-05-09
EP0367048A3 true EP0367048A3 (en) 1992-04-15
EP0367048B1 EP0367048B1 (en) 1995-08-23

Family

ID=6366185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119545A Expired - Lifetime EP0367048B1 (en) 1988-10-29 1989-10-21 Printing form with parts that can be repeatedly activated and removed

Country Status (4)

Country Link
US (1) US5109240A (en)
EP (1) EP0367048B1 (en)
JP (1) JPH02196694A (en)
DE (2) DE3836931C2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6374734B1 (en) * 1989-10-05 2002-04-23 Heidelberger Druckmaschinen Ag Tubular printing blanket
WO1991018743A1 (en) * 1990-05-31 1991-12-12 Ludwig Bartl Process and device for printing variable information
GB2245866B (en) * 1990-07-07 1995-03-15 Heidelberger Druckmasch Ag Printing machine with print image formation system
DE4205304A1 (en) * 1992-02-21 1993-08-26 Heidelberger Druckmasch Ag CIRCUIT ARRANGEMENT FOR A REVERSIBLE IMAGE STRUCTURE OF A PRINTING FORM OF A PRINTING MACHINE
DE19508254C5 (en) * 1994-04-15 2014-02-13 Eastman Kodak Co. Method for transporting individual sheets
DE4413238B4 (en) * 1994-04-15 2008-05-15 Anton Rodi Method for feeding and discharging sheets to be printed / printed to / from at least one printing unit of a sheet-fed printing machine
DE4428865A1 (en) * 1994-08-05 1995-01-12 Michael Schandelmaier Printing method without printing formes
US5927206A (en) * 1997-12-22 1999-07-27 Eastman Kodak Company Ferroelectric imaging member and methods of use
WO2000021753A1 (en) * 1998-10-10 2000-04-20 Heidelberger Druckmaschinen Ag Printing mould and method for modifying its wetting characteristics
AT407859B (en) * 1999-11-18 2001-07-25 Weber Casper Urban Planographic printing process
US7121209B2 (en) * 2004-01-16 2006-10-17 Nandakumar Vaidyanathan Digital semiconductor based printing system and method
US7422709B2 (en) * 2004-05-21 2008-09-09 Crosby Gernon Electromagnetic rheological (EMR) fluid and method for using the EMR fluid
WO2006113453A2 (en) * 2005-04-13 2006-10-26 Nandakumar Vaidyanathan Digital semiconductor based printing system and method
US7707937B2 (en) * 2005-12-15 2010-05-04 Palo Alto Research Center Incorporated Digital impression printing system
DE102006013637A1 (en) * 2006-03-22 2007-10-04 Man Roland Druckmaschinen Ag Printing form and printing unit of a printing press
US7755654B2 (en) * 2006-07-25 2010-07-13 Hewlett-Packard Development Company, L.P. Pixel
US11794465B2 (en) * 2021-01-19 2023-10-24 Xerox Corporation Fountain solution imaging using dry toner electrophotography

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202202A1 (en) * 1981-01-26 1982-08-19 Canon K.K., Tokyo "METHOD AND DEVICE FOR IMAGE GENERATION"
EP0279066A2 (en) * 1987-02-20 1988-08-24 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Printing machine
AU1232788A (en) * 1987-02-27 1988-09-01 Manfred R. Kuehnle Thermodynamic printing method and means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678852A (en) * 1970-04-10 1972-07-25 Energy Conversion Devices Inc Printing and copying employing materials with surface variations
US4030107A (en) * 1974-09-12 1977-06-14 Sharp Kabushiki Kaisha Electrographic recording devices employing electrostatic induction electrodes
JPS60219069A (en) * 1984-04-16 1985-11-01 Toshiba Corp Electrophotography apparatus
JPS61130057A (en) * 1984-11-30 1986-06-17 Mita Ind Co Ltd Electrostatic image output device
NL8601376A (en) * 1986-05-29 1987-12-16 Oce Nederland Bv IMAGING ELEMENT FOR AN ELECTROSTATIC PRINTING DEVICE, AND A PRINTING DEVICE APPLYING SUCH AN ELEMENT.
DE3633758A1 (en) * 1986-10-03 1988-04-07 Man Technologie Gmbh PRINTING MACHINE
US4897676A (en) * 1988-01-05 1990-01-30 Max Levy Autograph, Inc. High-density circuit and method of its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202202A1 (en) * 1981-01-26 1982-08-19 Canon K.K., Tokyo "METHOD AND DEVICE FOR IMAGE GENERATION"
EP0279066A2 (en) * 1987-02-20 1988-08-24 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Printing machine
AU1232788A (en) * 1987-02-27 1988-09-01 Manfred R. Kuehnle Thermodynamic printing method and means

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 323 (M-531)(2379) 5. November 1986 & JP-A-61 130 057 ( MITA INC. CO., LTD ) 17. Juni 1986 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 77 (M-464)(2134) 26. März 1986 & JP-A-60 219 069 ( TOSHIBA K.K. ) 1. November 1985 *
WORLD PATENTS INDEX LATEST Derwent Publications Ltd., London, GB; AN 88-307737 & AU-A-1 232 788 (KUEHNLE M.R.) 1. September 1988 *

Also Published As

Publication number Publication date
EP0367048B1 (en) 1995-08-23
DE58909395D1 (en) 1995-09-28
EP0367048A2 (en) 1990-05-09
JPH02196694A (en) 1990-08-03
US5109240A (en) 1992-04-28
DE3836931A1 (en) 1990-05-03
DE3836931C2 (en) 1993-11-04

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