Oce Printing Systems Gmbh

Oc&eacute; Printing Systems Gmbh

Other

Hans Winter

Edmund Creutzmann

Walter Kopp

Frank Freudenberg

Volkhard Maess

Heinrich Lay

Heiner Reihl

Bernd Schoch

Andreas Eckardt

Wolfram Keil

Josef Schreieder

Günther Gassner

Uwe Höllig

Christian Scholz

Stefan Scherdel

Reinhold Schmidl

Holger Hofmann

Wolfgang Schullerus

Ulrich Bäumler

Johann Bartosch

Martin Silbersack

Günter Gassner

Rüdiger Hauns

Michael Mayr

Thomas Schimidt-Behounek

Rene-Alois Fröschl

Thomas Vizjak

In a device or method to change a belt in a machine assembly, a gripper is provided with two flat legs. The legs are held at one end and are free at the other ends. The legs are provided with a respective protective film on side surfaces facing towards one another to protect the belt. A first of the two legs facing towards the machine assembly in an exchange of the belt have a sliding film on its outer surface. The legs are designed such that they exert a gripping force over a width of the belt after sliding onto the belt and grip the belt so that the belt can be slid onto or removed from rollers of at least one of the roller types selected from the group consisting of a drive roller and a deflection roller provided in the machine assembly.

Method for changing a belt in a machine assembly using a gripper having moveable opposed legs

In a method or system for controlling a printer or copier, a separation of a position mark printed on a web-shaped carrier material in a longitudinal direction of the carrier material relative to a transverse fold present in the carrier material is preset as a parameter. Arrival of the position mark is monitored with a sensor arrangement arranged before a transfer printing area while the carrier material is moved past the sensor arrangement. A real position of the transverse fold is determined for a position of arrival of the position mark at the sensor arrangement. The transverse fold is conveyed to a desired position by consideration of the real position of the transverse fold.

Printer or copier for printing an endless support material comprising transversal folds, and method for controlling such a printer or copier

In a method for electrographic printing of color images on a final image carrier, charge images of images to be printed are generated on a charge image carrier and are developed into toner images with toner, the toner images being transferred onto an intermediate carrier from which they are transfer-printed onto the final image carrier. The charge images for individual colors of the color image are generated in succession on the charge image carrier and are developed into individual color toner images with color toner. The individual color toner images are transferred onto the intermediate carrier and are there collected atop of one another in a color collection cycle to form a complete color toner image. Before transfer printing of the complete color toner image on the final image carrier, the final image carrier is pivoted onto the intermediate carrier, and after the transfer printing, the final image carrier is pivoted away from the intermediate carrier. After transfer printing of the complete color toner image, the color toner images for a next complete color image are transferred from the charge image carrier onto the intermediate carrier after an end of the pivoting of the final image carrier away from the intermediate carrier.

Method for preventing the influence of the transfer of vibrations during the printing of images on a final image carrier

In a method and a system for generation of print images on a carrier material, an actual speed difference is generated in a transfer printing region between an image carrier and the carrier material. A deviation of the actual speed difference from a desired speed difference is determined with aid of a measurement arrangement.

Method and device for detection of the speed difference between an image carrier and a carrier material

A device and a method for controlling a position of a lateral edge of a continuous web of a recording medium in a printer or copier provides that sensors are provided. Signals of the sensors are supplied to a control device which includes an actuator. The actuator changes the position of the lateral edge of the web.

Device and method for controlling the position of the lateral edge of a continuous web

The invention relates to a method and an arrangement for generating positionally-accurate print images on a carrier material with the aid of an electrophotographic printer or copier. A positioning error of the position of the carrier material with respect to a toner image present on the toner image carrier is determined, which error occurs during the contacting of a carrier material to be printed. Dependent on the positioning error determined, for every subsequent contacting of the carrier material to be printed with the toner image carrier, the position of the carrier material with respect to the toner image is adapted before the contacting such that the carrier material and the toner image are arranged with respect to one another substantially free of positioning errors.

Method and arrangement for generating positionally accurate print images on a carrier material

A method and device controls a printer or copier to generate a plurality of marks that are assembled into a coherent marking band that is then inked by the toner. A sensor measures the marking band. The printer or copier are controlled based on the output of the sensor.

Method for controlling a printer or copier using a toner mark band and reflex sensor working according to the triangulation principle

In an arrangement and method for determining a position of a unit in an electrophotographic printer or copier, a sensor arrangement is provided having two sensors and an actuating element. Each sensor outputs a sensor signal dependent on a position of the actuating element, the position of the actuating element with respect to the sensors changing dependent on a position of the unit. In a first position of the unit, the actuating element is positioned such that the first sensor and the second sensor each output a first sensor signal. In a second position of the unit the actuating element is positioned such that the first sensor outputs a second sensor signal and the second sensor outputs the first sensor signal. In a third position of the unit the actuating element is positioned such that the first sensor and the second sensor each output the second sensor signal. In a fourth position of the unit the actuating element is positioned such that the first sensor outputs the first sensor signal and the second sensor outputs the second sensor signal.

Arrangement and method for determining the position of a unit in an electrophotographic printer or copier

In a method and device to control a print process in a printer or copier, with a character generator generating a latent print image and a latent toner marking on an image carrier. An exposure energy per unit area for the generation of the latent toner marking is decreased in comparison to an energy per unit area for generation of the latent print image. The latent print image and the latent toner marking are developed with toner in the developer station. An optical reflection sensor determines color density of the developed toner marking. Toner concentration is adjusted in a developer station dependent on a signal of the reflection sensor.

Method and device for controlling a print process with high color density

A system and method are provided for coating a container for acceptance of consumables. An information carrier is provided on the container for the first memory area in which a container-individual identifier number is non-erasably stored, and an erasable second memory area is provided of the information carrier providing consumable-specific data.

Printer or copier system having re-employable container for consumables and method for the employment of the container

An electrographic printing device has at least one printing unit with a toner image carrier. A printing device for producing a toner image prints at least one mark on a photoconductor belt. The toner contained on the photoconductor belt is transferred to a transfer belt at a first transfer point and transferred from said transfer belt to a strip-shaped support material at a second transfer point. A sensor situated on the transfer belt detects the passage of the mark and a control unit determines the time that has elapsed between the time of printing and the time at which the mark is detected and controls the transportation of the strip-shaped support material accordingly.

Electrographic printing device with a sensor for detecting slipping

In a method for improving the printing quality for electrographic color printing, print consumables, particularly toner, are monitored in container-exact fashion and substance-specific information are employed for the control of the printing process. Toner expiration dates for the consumables are identified and noted early at the respective printing location. The consumable contained in the container and the amount of consumable contained is thus stored in machine-readable fashion at the container. An information carrier is provided at the container for non-contacting transmission of data and energy from a data read and/or write station to the container. A transponder that is provided with an individual hardware identifier is provided as the information carrier. The hardware identifier may be employed as a component part of codes for device control. The printer or copier system disclosed includes a recycling concept for consumables containers. One and the same container is multiply employed, and the current container content can be acquired container-individually at any time by machine. The containers are provided with the information carrier that contains the machine-readably encoded information about the current or more recently contained consumable situated in the container. A module that can be electronically written and read in non-contacting fashion is employed as the information carrier, particularly the transponder. The data stored in the transponder can be supplied to other system components such as a filling station, a central computer with a data bank, and the printer or copier devices.

Printing or copying system with a reusable container for consumable materials and method for using said container

Means for regulating pressure in a pressure chamber

Device for the positionally exact synchronization of the parallel course

A method for operation of a printing mechanism in an electrographic printer or copier, whereby a charge image is applied at a surface region of a toner image carrier. The surface region provided with the charge image is conveyed past at the transfer surface of a transfer element at a spacing of a developing gap. The actual width of the gap is controlled with a loop control circuit.

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Munich, Germany

Hans Winter