EP0367048A2 - Plaque d'impression avec plages pouvant être réactivées et enlevées - Google Patents

Plaque d'impression avec plages pouvant être réactivées et enlevées Download PDF

Info

Publication number: EP0367048A2
Authority: EP; European Patent Office
Prior art keywords: printing form; areas; form according; semiconductor layer; printing
Prior art date: 1988-10-29
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

EP89119545A

Other languages

German (de)

English (en)

Other versions

EP0367048A3 (fr

EP0367048B1 (fr

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.)

1988-10-29

Filing date

1989-10-21

Publication date

1990-05-09

1989-10-21 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1990-05-09 Publication of EP0367048A2 publication Critical patent/EP0367048A2/fr

1992-04-15 Publication of EP0367048A3 publication Critical patent/EP0367048A3/fr

1995-08-23 Application granted granted Critical

1995-08-23 Publication of EP0367048B1 publication Critical patent/EP0367048B1/fr

2009-10-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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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

Definitions

the invention relates to a printing form for a printing press with areas which can be activated and deleted repeatedly and which, after activation, are ink-accepting.
the invention makes it possible to bring the print motif created in an editorial terminal directly onto the electronically activatable forme cylinder.
the production and clamping of a conventional printing plate is therefore no longer necessary.
the motif to be printed can be changed during operation from the editorial terminal.
the device according to the invention is space-saving and optimally protected against environmental influences.
the semiconductor layer preferably consists of a thin silicon-containing layer, as is known from computer technology, it being possible for these transistor / capacitor or transistor / inductance patterns to be introduced by conventional diffusion methods.
the individual transistors can be controlled by a computer (stationary or in the forme cylinder) by means of an address bus.
the transistors which preferably form the electronic switching elements in the semiconductor layer, are driven by a data bus which can transmit switching commands (on / off) and by a supply bus.
the electrostatic or capacitive or magnetic patterns built up element by element then serve to allow suitable color, such as ferro-fluid color or electrostatically charged color or toner, to adhere directly or via a protective layer arranged on the semiconductor layer, in accordance with the motif to be printed. This protective layer should be wear-resistant.
the printing form according to the invention is used on a so-called forme cylinder 3, which is rotatably mounted between two side walls 1, 2 of a printing unit and can be set in rotation in the usual way by electric motors or by a gear drive.
a blanket cylinder 4 can be placed on the forme cylinder 3 if an offset printing process is to be used.
a paper web to be printed not shown here, is passed between the blanket cylinder and another cylinder 5 acting as an impression cylinder.
the blanket cylinder 4 is unnecessary, so that an impression cylinder can be placed directly on the form cylinder 3 carrying the printing form according to the invention and the paper web or printing medium to be printed can be passed between them in the form of sheets.
the forme cylinder 3 carries the printing form 6 according to the invention, which preferably consists of a thin semiconductor material such as silicon.
the cylinder 4 provided with a rubber blanket 7 or a rubber sleeve, as indicated, is attached to this semiconductor layer 6.
Fig. 2 shows the semiconductor layer 6 forming the printing form according to the invention in two dimensions, i.e. in the form of a plate. It goes without saying that the semiconductor layer 6 can also be tubular, so that continuous printing is possible. The semiconductor layer can also be firmly applied directly to the forme cylinder.
the individual areas are arranged in columns 9, 10, 11 and rows 12, 13, 14. This results in an advantageous control of the capacitances 15 arranged in a matrix in FIG. 2 with the aid of the electronic switching elements in the form of transistors 16.
the latter can be field effect transistors or so-called MOS transistors (metal oxide silicon transistors) in the usual way and each have a sink electrode 17, a source electrode 18 and a control electrode or gate electrode 19.
MOS transistors metal oxide silicon transistors
the latter are usually referred to as drain electrodes, source electrodes and gate electrodes.
a capacitance 15 can be connected in series, so that the associated capacitance 15 is loaded in each case when the transistor 16 is switched on. Discharging the transistors is possible in a simple manner by applying corresponding voltages or ground potentials.
the transistors can be used in the semiconductor layer 6 by appropriate doping or routing.
the driver lines for example the driver line 22 in the row 12 and the column driver line 27, and by controlling the associated gate electrode via the line 24, the upper region shown on the left in the form of a capacitance 15 can be loaded in FIG. 2. This charge can be kept permanently during operation by maintaining or maintaining the applied operating voltage.
FIG. 3 shows a section 34 of a semiconductor layer on which a transistor 29 with source electrodes 31 and sink electrode 30 and a gate electrode 32 is indicated.
An inductor 33 which is meandering or zigzag-shaped, lies in series with the source electrode and the sink electrode. By appropriate doping of the semiconductor layer 34, this is possible, so that an "ironless inductance" is produced.
the transistor 29 When the transistor 29 is switched on, the current controllable via the transistor 29 flows through the inductance 33, so that a corresponding magnetic field is created, by means of which color particles of, for example, a ferro-fluid color can be attracted, in accordance with the motif to be printed.
the transistor 29 has to be permanently activated, that is to say switched through and supplied with voltage, since otherwise the magnetic field of the inductor 33 cannot be maintained.
the control electronics are preferably arranged within the forme cylinder 3, as indicated at 8.
the required supply and control voltages of the electronics 8 in the forme cylinder 3 and thus of the semiconductor layer 6 can be supplied via slip rings or with the aid of a transmitter.
the jacket of the forme cylinder 3 can have corresponding openings in order to make the semiconductor layer lying on it accessible for the lines from the inside.
the supply and control voltages can also be supplied via the end faces of the forme cylinder 3.

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)
Rotary Presses (AREA)
Electrophotography Using Other Than Carlson'S Method (AREA)
Printing Plates And Materials Therefor (AREA)

EP89119545A 1988-10-29 1989-10-21 Plaque d'impression avec plages pouvant être réactivées et enlevées Expired - Lifetime EP0367048B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3836931A DE3836931C2 (de)	1988-10-29	1988-10-29	Druckform fuer eine druckmaschine mit wiederholt aktivierbaren und loeschbaren bereichen
DE3836931		1988-10-29

Publications (3)

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

Family

ID=6366185

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89119545A Expired - Lifetime EP0367048B1 (fr)	1988-10-29	1989-10-21	Plaque d'impression avec plages pouvant être réactivées et enlevées

Country Status (4)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1991018743A1 (fr) *	1990-05-31	1991-12-12	Ludwig Bartl	Procede et dispositif d'impression d'informations variables
FR2664200A1 (fr) *	1990-07-07	1992-01-10	Heidelberger Druckmasch Ag	Presse a imprimer avec cliche modifiable par voie electrochimique.
EP0556627A3 (fr) *	1992-02-21	1995-03-29	Heidelberger Druckmasch Ag
EP0677467A3 (fr) *	1994-04-15	1996-10-23	Heidelberger Druckmasch Ag	Procédé pour transporter/traiter des substrats plats individuels.
AT407859B (de) *	1999-11-18	2001-07-25	Weber Casper Urban	Flachdruckverfahren
EP1837175A1 (fr) *	2006-03-22	2007-09-26	MAN Roland Druckmaschinen AG	Plaque d'impression et unité d'impression d'une presse
DE4413238B4 (de) *	1994-04-15	2008-05-15	Anton Rodi	Verfahren zum Zu- und Abführen von zu bedruckenden/bedruckten Bogen zu/von mindestens einem Druckwerk einer Bogendruckmaschine

Families Citing this family (10)

* 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
DE4428865A1 (de) *	1994-08-05	1995-01-12	Michael Schandelmaier	Druckformloses Druckverfahren
US5927206A (en) *	1997-12-22	1999-07-27	Eastman Kodak Company	Ferroelectric imaging member and methods of use
RU2241600C2 (ru) *	1998-10-10	2004-12-10	Хайдельбергер Друкмашинен Аг	Печатная форма и способ изменения ее свойств смачиваемости
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 (fr) *	2005-04-13	2006-10-26	Nandakumar Vaidyanathan	Systeme et procede d'impression a base de semi-conducteurs numeriques
US7707937B2 (en) *	2005-12-15	2010-05-04	Palo Alto Research Center Incorporated	Digital impression printing system
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

Family Cites Families (8)

* 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
JPS57124367A (en) *	1981-01-26	1982-08-03	Canon Inc	Image forming method and its device
NL8601376A (nl) *	1986-05-29	1987-12-16	Oce Nederland Bv	Beeldvormingselement voor een elektrostatische drukinrichting, alsmede een drukinrichting waarin zulk een element wordt toegepast.
DE3633758A1 (de) *	1986-10-03	1988-04-07	Man Technologie Gmbh	Druckmaschine
DE3705439A1 (de) *	1987-02-20	1988-09-01	Man Technologie Gmbh	Druckmaschine
US4792860A (en) *	1987-02-27	1988-12-20	Kuehrle Manfred R	Thermodynamic printing method and means
US4897676A (en) *	1988-01-05	1990-01-30	Max Levy Autograph, Inc.	High-density circuit and method of its manufacture

1988
- 1988-10-29 DE DE3836931A patent/DE3836931C2/de not_active Expired - Fee Related
1989
- 1989-10-17 US US07/422,782 patent/US5109240A/en not_active Expired - Lifetime
- 1989-10-21 EP EP89119545A patent/EP0367048B1/fr not_active Expired - Lifetime
- 1989-10-21 DE DE58909395T patent/DE58909395D1/de not_active Expired - Fee Related
- 1989-10-30 JP JP1280017A patent/JPH02196694A/ja active Pending

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1991018743A1 (fr) *	1990-05-31	1991-12-12	Ludwig Bartl	Procede et dispositif d'impression d'informations variables
FR2664200A1 (fr) *	1990-07-07	1992-01-10	Heidelberger Druckmasch Ag	Presse a imprimer avec cliche modifiable par voie electrochimique.
EP0556627A3 (fr) *	1992-02-21	1995-03-29	Heidelberger Druckmasch Ag
EP0677467A3 (fr) *	1994-04-15	1996-10-23	Heidelberger Druckmasch Ag	Procédé pour transporter/traiter des substrats plats individuels.
US5775683A (en) *	1994-04-15	1998-07-07	Heidelberger Druckmaschinen Ag	Method for transporting handling sheets
DE4413238B4 (de) *	1994-04-15	2008-05-15	Anton Rodi	Verfahren zum Zu- und Abführen von zu bedruckenden/bedruckten Bogen zu/von mindestens einem Druckwerk einer Bogendruckmaschine
AT407859B (de) *	1999-11-18	2001-07-25	Weber Casper Urban	Flachdruckverfahren
EP1837175A1 (fr) *	2006-03-22	2007-09-26	MAN Roland Druckmaschinen AG	Plaque d'impression et unité d'impression d'une presse

Also Published As

Publication number	Publication date
DE58909395D1 (de)	1995-09-28
JPH02196694A (ja)	1990-08-03
EP0367048A3 (fr)	1992-04-15
DE3836931C2 (de)	1993-11-04
EP0367048B1 (fr)	1995-08-23
DE3836931A1 (de)	1990-05-03
US5109240A (en)	1992-04-28

Legal Events

Date	Code	Title	Description
1990-03-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1994-03-09	17Q	First examination report despatched	Effective date: 19940119
1995-07-07	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-08-09	ITF	It: translation for a ep patent filed
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1995-09-28	REF	Corresponds to:	Ref document number: 58909395 Country of ref document: DE Date of ref document: 19950928
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1996-01-03	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19951124
1996-06-28	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-06-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-08-14	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2003-10-01	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 20031001 Year of fee payment: 15
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2005-05-31	EUG	Se: european patent has lapsed
2007-10-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PFA Owner name: M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT Free format text: M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT#MUEHLHEIMERSTRASSE 341#D-63075 OFFENBACH A.M. (DE) -TRANSFER TO- M.A.N.-ROLAND DRUCKMASCHINEN AKTIENGESELLSCHAFT#MUEHLHEIMERSTRASSE 341#D-63075 OFFENBACH A.M. (DE)
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Publication	Publication Date	Title
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EP0764523B2 (fr)	2006-03-22	Dispositif d'impression pour l'impression indirecte
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WO2001050035A1 (fr)	2001-07-12	Procede et dispositif pour la compensation de vibrations de composants rotatifs
DE2834882C2 (de)	1981-10-08	Elektrostatische Aufzeichnungseinrichtung
EP1176008B1 (fr)	2006-05-17	Machine d'impression à plusieurs couleurs avec un cylindre de blanchet commun
EP0824070A1 (fr)	1998-02-18	Procédé et dispositif pour la production de produits imprimés
EP1882587A2 (fr)	2008-01-30	Machine d'impression
EP0401655B1 (fr)	1993-11-24	Elément d'impression à huit cylindres
DE2400048C2 (de)	1984-05-10	Elektrographische Druckvorrichtung
DE4204871A1 (de)	1993-08-19	Presseur
EP1837175B1 (fr)	2008-10-15	Plaque d'impression et unité d'impression d'une presse
EP0861723A2 (fr)	1998-09-02	Nettoyage d'un dispositif d'encrage dans une presse à imprimer
EP0453855B1 (fr)	1994-12-07	Préparation du dispositif d'encrage d'une machine à imprimer lors du changement de la commande d'impression
EP0813963B1 (fr)	1999-06-30	Dispositif d'impression offset pour presse rotative
EP1364782A2 (fr)	2003-11-26	Unité d'impression
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DE19822892B4 (de)	2006-06-14	Druckmaschine
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DE10154430B4 (de)	2009-04-02	Verfahren und Vorrichtung zum Löschen eines Druckbildes auf einer Druckform für eine Druckmaschine
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DE19932071A1 (de)	2000-01-27	Vorrichtung und Verfahren zur Bebilderung einer Druckform für eine Offsetdruckmaschine
DE4039107B4 (de)	2004-08-26	Vorrichtung zum bildmäßigen Beschreiben und Löschen einer Druckform
EP2082876B1 (fr)	2010-08-18	Unité d'impression d'une machine d'impression