EP0395959B1 - Méthode et dispositif pour régler un dispositif de dosage de l'encre dans une presse à partir d'une application nulle d'encre - Google Patents

Méthode et dispositif pour régler un dispositif de dosage de l'encre dans une presse à partir d'une application nulle d'encre Download PDF

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Publication number
EP0395959B1
EP0395959B1 EP90107556A EP90107556A EP0395959B1 EP 0395959 B1 EP0395959 B1 EP 0395959B1 EP 90107556 A EP90107556 A EP 90107556A EP 90107556 A EP90107556 A EP 90107556A EP 0395959 B1 EP0395959 B1 EP 0395959B1
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EP
European Patent Office
Prior art keywords
ink metering
ink
metering elements
elements
computer
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.)
Expired - Lifetime
Application number
EP90107556A
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German (de)
English (en)
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EP0395959A3 (fr
EP0395959A2 (fr
Inventor
Bernd Häffner
Alfred Dorn
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
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0395959A2 publication Critical patent/EP0395959A2/fr
Publication of EP0395959A3 publication Critical patent/EP0395959A3/fr
Application granted granted Critical
Publication of EP0395959B1 publication Critical patent/EP0395959B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys

Definitions

  • the invention relates to a method for setting an ink metering system of printing presses on zero ink application, the ink metering system consisting of several ink metering elements which can be moved against an inking roller by means of an actuator and whose positions relative to the inking roller are measured by a position transmitter attached to each ink metering element, and a device for setting an ink metering system from printing machines to zero ink application, where the ink metering system consists of several ink metering elements, and each ink metering element can be moved towards the inking roller by a remote-controlled actuator, and can also be moved away from the inking roller, each ink metering element is guided through a housing which is in an unchanged rigid position relative to the inking roller is locked and carries the actuator, each ink metering element has a position transmitter which measures the position of the ink metering element relative to the inking roller, in a control computer for each combination from Fa rbdosierelement and position transmitter, a characteristic curve is
  • the ink is applied zone by zone on the inking roller, the ink metering elements forming the zones being set in accordance with the ink requirements of the printing plate.
  • the ink metering elements are provided with a remotely controllable actuator and also have position transmitters.
  • the measurement signals of the position transmitters reach an operating panel via an input and output control and a control computer which calculates positions from these signals.
  • the positions of the individual ink metering elements are displayed there, for example by means of rows of LEDs which are assigned to the individual zones of the inking roller.
  • the printer can now correct the actual values of the positions of the ink metering elements in accordance with the target values provided for the zones.
  • the control commands required for this correction are calculated by the control computer and are then assigned to the actuators of the individual color metering elements via the input and output controls.
  • a characteristic curve can be stored in the control computer for each combination of the color metering element and position transmitter, which represents the relationship between the measurement signal and position.
  • the zero position of the respective color metering element must also be contained in each characteristic curve.
  • the ink metering system has been preset, i.e.
  • the setting of all ink metering elements to zero ink application and the corresponding storage of these positions in the characteristic curves of the control computer does not take into account the constantly changing operating parameters such as thermal expansion of the ink roller diameter and the ink metering elements, wear of the ink roller surface and the tips the color metering elements and bearing play.
  • a remote controlled setting of the ink metering system to zero ink application by the printer and corresponding visual assessment of the Applying paint on the inking roller requires a lot of experience, is time-consuming and therefore associated with a lot of waste.
  • the ink metering device for a printing machine consists of an ink metering element which is pressed against the inking roller by spring force. Contrary to this spring force, the drive pulls the ink metering element into the desired position relative to the inking roller via an actuating gear. If the ink metering element reaches the inking roller (zero ink application), a contact opens and the drive is switched off and this position is saved for the further adjustment processes. In addition to the switch contained in the ink metering unit, a position transmitter is also required.
  • DE-PS 3 331 208 describes a device for the automatic setting of several color metering elements in a parallel starting position, for example in the position with zero color application. For this purpose, the color density is measured optically and readjusted according to each color metering element.
  • a color-free calibration zone is necessary for the automatic setting of the color metering elements to zero color application, and gloss effects which have a disadvantageous effect cannot be ruled out, especially with fresh color.
  • DE-OS 3 424 349 discloses a method together with a device for recognizing the operating state of an actuator, for example that of an ink metering element of a printing press, in which the load-dependent motor current is determined and a certain threshold value is exceeded because, for example, that Ink metering element is present on the ink roller, blocking of the drive signals. It would therefore be conceivable to make the switching off of the drive of the ink metering element dependent on this threshold value being exceeded. Because of the high translation of a spindle drive, however, excessive contact forces of the ink metering element on the inking roller are to be expected.
  • the invention is therefore based on the object of designing a color metering system of the type mentioned in such a way that a color metering system can be set automatically, quickly and precisely to zero color application at any time.
  • FIG. 1 The basic components of a control system of a color metering system can be seen in FIG. 1.
  • the color metering system consists of several color metering elements 1, the clarity only two are shown.
  • Each ink metering element can be moved towards and away from the inking roller 3 by a remotely controllable actuator 2.
  • Each ink metering element 1 is guided through a housing 4 which carries the drive 2 and is locked in a fixed position relative to the inking roller 3.
  • a position transmitter 5 is connected, the measurement signal of which is a measure of the position of the ink metering element 1 with respect to the inking roller 3.
  • the measurement signals of the position transmitters 5 of the color metering elements 1 pass to an control computer 7 via an input and output control 6, which according to the prior art is designed, for example, as a bus system.
  • the control computer 7 calculates from these measurement signals using characteristic curves stored in it, which for each color metering element 1 - position transmitter 5 - combination represent the relationship between the measurement signal and the position of the respective color metering element 1, the positions of the individual color metering elements 1. These positions of the color metering elements 1 are then visually displayed on the control panel 8.
  • each color metering element 1, i.e. a row of light-emitting diodes can be assigned to each ink metering zone of the inking roller 3.
  • the printer can individually change each ink metering element 1 in its position relative to ink roller 3.
  • the commands entered via the control panel 8 are converted into control signals in the control computer 7 and assigned to the actuators 2 of the corresponding color metering elements 1 via the input and output control 6.
  • each ink metering element 1 In order to be able to display the position of each ink metering element 1 on the control panel 8 absolutely, ie exactly according to the distance between the respective ink metering element 1 and the inking roller 3, the zero position of each ink metering element 1 must be stored in the control computer 7.
  • each ink metering element 1 can be completely on the inking roller 3, for example when installing the ink metering system are turned on and the corresponding measurement signals of the position transmitter 5 are stored in the characteristics contained in the control computer 7 as a zero position.
  • the printer Before each start of printing, the printer can also control each ink metering element 1 in the direction of the ink roller 3 via the control panel 8 until there is no more ink application and so store the zero positions of the ink metering elements 1 in the control computer 7.
  • Such remote control for manual application of zero ink is lengthy and requires a great deal of experience in order to achieve an even adjustment of the ink metering elements 1 over the width of the ink roller 3.
  • a one-time storage of the zero positions of the ink metering elements 1 (installation) or a storage of these zero positions only before each start of printing can change the operating parameters that change during printing operation, such as thermal expansion of the ink roller diameter, the ink metering elements 1, wear on the surface of the ink roller 3 and the tips the color metering elements 1 and changing bearing play are not taken into account.
  • the aim of the present invention is to develop a method and a device that quickly and precisely sets the color metering system of the type according to FIG. 1 to a zero color order in order to store these positions of the color metering elements 1 in the control computer 7 as a starting point for the further setting processes.
  • the actuators 2 of the ink metering elements 1 are switched on for movement in the direction of the inking roller and it is determined whether the measurement signals of the position sensors 5 of the ink metering elements 1 change within a short time interval and those actuators 2 of the color metering elements 1 are switched off when the measurement signals whose position transmitter 5 no longer have any change within this time interval.
  • control device 9 provided according to the invention for carrying out the method is shown in FIG. 2.
  • the control device 9 consists of a microcomputer (MC), 2 input interfaces (II1, II2), 2 output interfaces (OI1, OI2) with an analog-to-digital converter 10.
  • the measurement signals fed from the position transmitters 5 of the individual color metering elements 1 to the control computer 7 via the input and output control 6 are fed in parallel to the control device 9. Its input for the measurement signals from the position sensors 5 consists of the analog-digital converter 10 and input interface (II1).
  • the input interface (II1) is designed in accordance with the type of transmission of the measurement signals to the control computer 7, for example as a demultiplexer if the measurement signals of the position transmitter 5 are transmitted using a multiplex method.
  • the measurement signals of the position transmitter 5 are digitized on the microcomputer (MC) via the analog-digital converter 10 and the input interface (II1).
  • the microcomputer (MC) can switch each actuator 2, each ink metering element 1 in the direction of the ink roller 3 and switch off each actuator 2 individually.
  • Output interface (OI1) is designed in such a way that output interface (OI1) generates the control signals for switching the actuators 2 of the ink metering elements 1 on and off in the manner of the control computer 7 and the transmission of the input and output control 6.
  • the microcomputer (MC) receives this via the input interface (II2) Signal for setting the color metering elements 1 to zero color application from the control panel 8, likewise a time interval can be stored in the microcomputer (MC) via the input interface (II2) and control panel 8, which is used to calculate the change in the measurement signals of the position transmitter 5 according to method claim 1.
  • the input interface (II2) is designed as a signal converter and input unit.
  • Output interface (OI2) is used to transmit the zero positions of the color metering elements 1 from the microcomputer (MC) to the control computer 7, where they are stored.
  • Output interface (OI2) is designed as a signal converter, so that the zero positions are applied to the control computer 7 in the signal form in which they are stored there.
  • control device 9 If the control device 9 is given the command to reset the ink metering system by the control panel 8, the actuators 2 of all the ink metering elements 1 are switched on in the direction of the ink roller 3 via a microcomputer (MC) and output interface (OI1).
  • MC microcomputer
  • OI1 output interface
  • the microcomputer (MC) stores a measurement signal from each position transmitter 5 digitally via analog-digital converter 10 and input interface (II1). After the short time interval, the microcomputer (MC) repeats this reading in of the measurement signals. At the same time, a comparison is made as to whether or not the measurement signals from the position transmitters 5 have changed from those previously read. Via the output interface (OI1) and the input and output control 6, the microcomputer (MC) keeps those actuators 2 of the ink metering elements 1 turned on in the direction of the inking roller 3, the measuring signals of which the position transmitter 5 have changed within the time interval. Likewise, the microcomputer (MC) switches off those actuators 2 of the ink metering elements 1 whose position transmitters 5 deliver the same measurement signal as before the time interval.
  • the measurement signals of the color metering elements 1, the actuators 2 of which have been switched off by the microcomputer (MC), are now stored in the control computer 7 via the output interface (OI2).
  • the microcomputer (MC) repeats the saving and the comparison of the measurement signals of the position sensors 5 read in at intervals of the time interval until the actuators 2 of all the color metering elements 1 are switched off.
  • the color metering system is now set to zero color application and the zero positions of all color metering elements 1 are stored in the control computer 7.
  • the selection of the time interval stored in the microcomputer (MC) via the input interface (II2) i.e. the time rate with which the microcomputer (MC) reads in position values of the position transmitters 5 of the color metering elements 1 and compares them with those previously read in and stored, depends on the driving speed of the color metering elements 1 and the resolution of the position transmitters 5.
  • This time interval should be chosen so that the travel of the color metering elements 1 is minimal within this time, but on the other hand large enough so that there is a change in position of the color metering element 1, which causes a clear change in the measurement signal supplied by the position transmitter 5.
  • FIG 3 shows the mechanical construction of the position transmitter 5 according to the characterizing features of claim 5.
  • the ink metering unit consists of an ink metering element 1, which can be moved towards and away from the inking roller 3 by a remotely controllable actuator 2.
  • the actuator 2 also includes a gear arrangement, which is not shown.
  • the ink metering element 1 is guided through a housing 4, which also carries the actuator 2 and is firmly locked to the inking roller 3.
  • a touch plate 11 is connected to the color metering element 1 and a mounting plate 12 is arranged on a part of the housing 4, into which a Sensor 13 is inserted such that a gap S is formed between the touch plate 11 and the sensor 13.
  • This gap S is dependent on the position of the ink metering element 1 to the inking roller 3 and should be chosen so that even at the greatest distance provided by the tip of the ink metering element 1 to the inking roller 3, this gap S does not become zero, ie the touch plate 11 So sensor 13 is not touched.
  • a state-of-the-art capacitive, inductive, optical sensor is installed as a sensor 13 in the mounting plate 12.
  • the measurement signal of the sensor 13 is then dependent on the size of the gap S.
  • Such a design of a position transmitter 5 as a sensor 13, which measures a Saplt S, which depends on the position of the ink metering element 1, has the advantage that not only the position of the ink metering element 1 is measured, but that every change in the position of the ink metering element 1 to its housing 4 also expresses as a change in the measurement signal of the sensor 13.
  • a position transmitter 5 of this type can therefore not only measure the position of the ink metering element 1 relative to the housing 4, but also a movement of the ink metering element 1 in the sense of a change in its position over time.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Dot-Matrix Printers And Others (AREA)

Claims (6)

  1. Procédé pour régler un dispositif de dosage d'encre de machines d'impression à l'application d'encre nulle, le dispositif de dosage d'encre étant constitué de plusieurs éléments de dosage d'encre (1) déplaçables contre un rouleau encreur (3) au moyen d'un entraînement de réglage (2), éléments dont les positions par rapport au rouleau encreur (3) sont mesurées par un transmetteur de position (5) associé à chaque élément de dosage d'encre (1),
    caractérisé en ce que les entraînements de réglage (2) des éléments de dosage d'encre (1) sont connectés de sorte que les éléments de dosage d'encre (1) se déplacent en direction du rouleau encreur (3), en ce que, pour chaque élément du dosage d'encre individuel (1), les valeurs de position qui se suivent dans le temps sur les transmetteurs de position et qui sont séparées par un intervalle de temps sont détectées, en ce que, pour chaque élément de dosage d'encre (1), il est détecté si les valeurs de position qui se suivent et qui sont séparées par l'intervalle de temps sont différentes les unes des autres, en ce que les entraînements de réglage (2) des éléments de dosage d'encre dont les transmetteurs de position (5) délivrent des valeurs de position qui se différencient dans leur succession temporelle, restent en circuit, en ce que les entraînements de réglage (2) des éléments de dosage d'encre dont les transmetteurs de position (5) délivrent des valeurs de position qui sont identiques dans leur succession temporelle, sont mis hors circuit, et en ce que les valeurs de position ainsi détectées des éléments de dosage d'encre (1) sont utilisées comme positions neutres pour les autres processus de réglage du dispositif de dosage d'encre.
  2. Procédé selon la revendication 1,
    caractérisé en ce que, après la mise en circuit des entraînements de réglage (2) des éléments de dosage d'encre (1), une détection de la modification temporelle des valeurs de position détectées sur les transmetteurs de position (5) des éléments de dosage d'encre (1) est effectuée à l'intérieur d'un court intervalle de temps, en ce qu'une mise hors circuit des entraînements de réglage (2) des éléments de dosage d'encre (1) dont les transmetteurs de position (5) ne présentent plus aucune modification temporelle à l'intérieur dudit court intervalle de temps, est effectuée, et en ce que la mise en circuit et hors circuit des entraînements de réglage (2) des éléments de dosage d'encre (1), ainsi que la détection de la modification temporelle des valeurs de position à l'intérieur dudit court intervalle de temps, sont effectuées par un microordinateur.
  3. Dispositif pour la mise en oeuvre du procédé selon la revendication 1 ou 2, le dispositif de dosage d'encre étant constitué de plusieurs éléments de dosage d'encre (1), chaque élément de dosage d'encre (1) pouvant être déplacé par un entraînement de réglage télécommandable (2) en direction du rouleau encreur (3) ainsi qu'en s'éloignant du rouleau encreur (3), chaque élément de dosage d'encre (1) étant guidé à travers un boîtier (4), lequel est fixé dans une position stationnaire non modifiable par rapport au rouleau encreur (3) et porte l'entraînement de réglage (2), chaque élément de dosage d'encre (1) présentant un transmetteur de position (5) qui détecte la position de l'élément de dosage d'encre (1) par rapport au rouleau encreur (3), une caractéristique étant stockée dans un calculateur de commande (9) pour chaque combinaison d'un élément de dosage d'encre (1) et d'un transmetteur de position (5), laquelle reproduit la relation entre le signal du transmetteur de position et la position de l'élément de dosage d'encre (1), chaque élément de dosage d'encre (1) pouvant être déplacé au moins une fois, par exemple au début de l'impression et pendant des pauses d'impression, tout à fait contre le rouleau encreur (3) et cette position étant précisément associée dans la caractéristique correspondante en tant qu'écartement nul, de sorte que, par l'intermédiaire d'un pupitre de commande (8) et du calculateur de commande (7), les valeurs réelles des éléments de dosage d'encre (1) peuvent être corrigées de façon correspondant aux valeurs de consigne prévues,
    caractérisé en ce que les transmetteurs de position (5) agencés sur les éléments de dosage d'encre (1) présentent des capteurs (13), en ce qu'un dispositif de commande (9) est prévu, qui est constitué d'un convertisseur analogique-numérique (10), de deux interfaces d'entrée (II1,II2), de deux interfaces de sortie (OI1,OI2), et d'un microordinateur (MC), en ce que les signaux des transmetteurs de position (5) des éléments de dosage d'encre (1) peuvent être amenés, de façon numérique, au microordinateur (MC) par l'intermédiaire du convertisseur analogique-numérique (10) et de l'interface d'entrée (II1), en ce qu'un intervalle de temps peut être mémorisé dans le microordinateur (MC) par l'intermédiaire du pupitre de commande (8) et de l'interface d'entrée (II2), et en ce qu'il peut être calculé, par le microordinateur (MC), si les valeurs de position des transmetteurs de position (5) se modifient à l'intérieur de ce court intervalle de temps, en ce que la mise en circuit et hors circuit des entraînements de réglage (2) des éléments de dosage d'encre (1) peut être effectuée de façon dépendant de la modification des signaux par le microordinateur (MC) par l'intermédiaire de l'interface de sortie (OI1), et les positions des éléments de dosage d'encre (1), pour une application d'encre nulle, peuvent être amenées au calculateur de commande (7) à partir du microordinateur (MC) par l'intermédiaire de l'interface de sortie (OI2).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que le microordinateur (MC) reçoit, du pupitre de commande (8) par l'intermédiaire de l'interface d'entrée (II2), l'ordre de réglage, puis met en circuit les entraînements de réglage (2) des éléments de dosage d'encre (1) par l'intermédiaire de l'interface de sortie (OI1) au début du processus de réglage en direction du rouleau encreur (3), et en ce que le microordinateur (MC) met hors circuit les entraînements de réglage (2) des éléments de dosage d'encre (1), par l'intermédiaire de l'interface de sortie (OI1), quand les signaux des transmetteurs de position (5) à l'intérieur de l'intervalle de temps mémorisé dans le microordinateur (MC) ne présentent plus aucune modification.
  5. Dispositif selon la revendication 3,
    caractérisé en ce que le transmetteur de position (5) est un capteur (13) qui est agencé dans une plaque de montage (12), laquelle est solidaire du boîtier (4) de l'élément de dosage d'encre (1), et en ce qu'une plaque de contact (11) est agencée sur l'élément de dosage d'encre (1), de sorte qu'il est créé, entre le capteur (13) et la plaque de contact (11), une fente (S) dont la taille est une mesure de la position de l'élément de dosage d'encre (1) par rapport au rouleau encreur (3), et en ce que le capteur (13) délivre un signal qui dépend de la taille de cette fente (S).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que le capteur (13) est un capteur inductif, capacitif, optique.
EP90107556A 1989-05-05 1990-04-20 Méthode et dispositif pour régler un dispositif de dosage de l'encre dans une presse à partir d'une application nulle d'encre Expired - Lifetime EP0395959B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914831 1989-05-05
DE3914831A DE3914831C3 (de) 1989-05-05 1989-05-05 Vorrichtung zum zonenweisen Einstellen eines Dosierspaltes einer Farbdosieranlage einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0395959A2 EP0395959A2 (fr) 1990-11-07
EP0395959A3 EP0395959A3 (fr) 1991-06-12
EP0395959B1 true EP0395959B1 (fr) 1994-06-15

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EP90107556A Expired - Lifetime EP0395959B1 (fr) 1989-05-05 1990-04-20 Méthode et dispositif pour régler un dispositif de dosage de l'encre dans une presse à partir d'une application nulle d'encre

Country Status (5)

Country Link
EP (1) EP0395959B1 (fr)
JP (1) JPH07102682B2 (fr)
AT (1) ATE107229T1 (fr)
DE (2) DE3914831C3 (fr)
ES (1) ES2055825T3 (fr)

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US5138944A (en) * 1991-09-03 1992-08-18 Heidelberg Harris Inc. Method and apparatus for setting respective positions of ink keys
DE4131679C1 (fr) * 1991-09-24 1993-04-08 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE19543964C1 (de) * 1995-11-25 1997-06-12 Roland Man Druckmasch Verfahren und Vorrichtung zum Betätigen eines Stellgliedes einer Druckmaschine
DE19732249A1 (de) * 1997-07-26 1999-01-28 Roland Man Druckmasch Verfahren und Vorrichtung zum Positionieren eines Stellgliedes einer Druckmaschine
DE10044092A1 (de) 1999-10-11 2001-04-26 Heidelberger Druckmasch Ag Rakeleinrichtung in einem Farbwerk einer Rotationsdruckmaschine
DE10055827A1 (de) 2000-11-10 2002-05-29 Heidelberger Druckmasch Ag Farbdosiersystem in einer Druckmaschine
DE102008042147A1 (de) * 2008-09-17 2010-03-18 Manroland Ag Verfahren zum Betreiben einer Druckmaschine

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DE2935489C2 (de) * 1979-09-03 1982-12-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Farbmessereinstelleinrichtung für Druckmaschinen, insbesondere Rotationsdruckmaschinen
DD150028A1 (de) * 1980-04-10 1981-08-12 Max Janicki Einrichtung zur steuerung und ueberwachung von stellgliedern an druckmaschinen
DD154088A1 (de) * 1980-12-12 1982-02-24 Foerster Karl Heinz Multiplikative zustelleinrichtung an einer farbzonenfernverstelleinrichtung
DE3112189A1 (de) * 1981-03-27 1982-10-14 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Druckmaschine mit stellmotoren
US4510426A (en) * 1982-07-30 1985-04-09 Lectron Products, Inc. Memory power seat controller
DE3324952C1 (de) * 1983-07-11 1985-02-14 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung fuer eine Druckmaschine
DE3331208A1 (de) * 1983-08-30 1985-03-14 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zum einstellen des farbwerks einer druckmaschine und messvorrichtung zu seiner durchfuehrung
JPS6082936U (ja) * 1983-11-08 1985-06-08 アルプス電気株式会社 モータのロック防止をするモータ停止位置制御装置
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JPS63122540A (ja) * 1986-11-12 1988-05-26 J P Ii Kk 印刷機のインキ壺装置
JPH0796293B2 (ja) * 1986-12-29 1995-10-18 東芝精機株式会社 印刷機のインク供給量調整装置

Also Published As

Publication number Publication date
EP0395959A3 (fr) 1991-06-12
DE3914831A1 (de) 1990-11-08
DE3914831C2 (fr) 1993-01-07
ES2055825T3 (es) 1994-09-01
DE3914831C3 (de) 1999-05-20
EP0395959A2 (fr) 1990-11-07
DE59006099D1 (de) 1994-07-21
JPH07102682B2 (ja) 1995-11-08
JPH0361540A (ja) 1991-03-18
ATE107229T1 (de) 1994-07-15

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