Patents Assigned to Océ-Technologies B.V.
-
Patent number: 7845769Abstract: An ink jet printhead which includes a line of nozzles arranged with a uniform first pitch in a line direction X, a plurality of parallel ink channels having an axial direction normal to said line direction X and arranged in groups within which they have a uniform second pitch, each ink channel being connected to one of said nozzles, and a plurality of actuators arranged in groups corresponding to those of the ink channels, each actuator being associated with one of the ink channels for pressurizing ink contained therein for expelling an ink droplet through the associated nozzle, wherein the ink channels are connected to their associated nozzles by flow passages which all have a substantially equal length and are inclined relative to said axial direction with varying angles in both, said line direction X and a scan direction Z being orthogonal to the line direction and the axial direction.Type: GrantFiled: April 5, 2007Date of Patent: December 7, 2010Assignee: OCÉ-Technologies B.V.Inventor: Peter J. Hollands
-
Patent number: 7843113Abstract: A piezoelectric actuator having a bottom electrode attached to a membrane, a piezoelectric layer on the bottom electrode, and a top electrode formed on the piezoelectric layer, wherein the bottom electrode extends substantially over the entire bottom surface of the piezoelectric layer, and at least a peripheral portion of a top surface of the piezoelectric layer and side faces of that layer are covered with an insulating layer, and wherein in the peripheral portion of the top surface of the piezoelectric layer the top electrode is superposed on the insulating layer.Type: GrantFiled: May 28, 2008Date of Patent: November 30, 2010Assignee: OCE-Technologies B.V.Inventors: David D. L. Wijngaards, Hans Reinten, Hendrik J. Stolk, Alex N. Westland
-
Patent number: 7823880Abstract: A stepper mechanism for transporting a substrate along a linear transport path, which includes a stationary member and first and second transport members, extending widthwise across the transport path, the stationary member and transport members each being adapted to alternatively grip and release the substrate, and independent drive units are arranged on either side of the transport path for moving the respective ends of the transport members in a transport direction (X), wherein the transport members are movable independently of one another, and at least one of the drive units is adapted to move one end of the first transport member independently of the corresponding end of the second transport member.Type: GrantFiled: June 7, 2007Date of Patent: November 2, 2010Assignee: OCE-Technologies B.V.Inventors: Jeroen J. G. Coenen, Bae W. J. J. A. Van Dorp
-
Patent number: 7819516Abstract: A heat exchange laminate for use as a heat exchange member in a heat exchange unit for a printing system including a base layer extending substantially planar, said base layer being bilaterally coated with an electrical conductive non-metallic contact layer.Type: GrantFiled: October 20, 2008Date of Patent: October 26, 2010Assignee: OCÉ-Technologies B.V.Inventors: Cornelis J. Groenenberg, Herman Kuypers, Peter J. Hollands, Rick Walraven
-
Patent number: 7815274Abstract: A method for detecting malfunctioning nozzles of an inkjet printer does not need any sensors, scanning means or processor time. The method includes printing a test pattern with an inkjet printer having at least one array of at least two nozzles, and for each array printing the test pattern includes selecting a nozzle of the array to be investigated, identifying for the nozzle a number of compensating nozzles, each compensating nozzle being suitable to replace the nozzle for printing a dot, and printing a row that includes at least two dot groups and each dot group includes at least one dot. At least one dot group is printed by the nozzle and at least one other dot group is printed by a nozzle of the number of compensating nozzles.Type: GrantFiled: February 24, 2009Date of Patent: October 19, 2010Assignee: Oce-Technologies B.V.Inventor: Cornelis A. De Waal
-
Patent number: 7815283Abstract: A printer comprising a carriage, a guide rail and a print surface, the carriage being movable along the guide rail and carrying a printhead that faces the print surface and is movable in a direction normal to the plane of the print surface, wherein a stop or brake mechanism responsive to a movement of the printhead in said direction normal to the plane of the print surface is provided and adapted to stop the movement of the carriage.Type: GrantFiled: November 16, 2006Date of Patent: October 19, 2010Assignee: Oce-Technologies, B.V.Inventors: Cornelis H. J. Slaats, Barry B. Goeree, Henricus W. C. Douven, Jeroen A. A. Van Assen
-
Patent number: 7815279Abstract: A method for adjusting a first and a second array relative to each other in a printing device has a carrying structure for mounting the first and second arrays. The first array has nozzles arranged in a first row substantially parallel to a first direction for forming first marks on a recording substrate. The second array has nozzles arranged in a second row substantially parallel to the first direction for forming second marks on the recording substrate. In an attainable relative position, the first and second arrays at least partially flank each other. The method includes forming a test pattern and detecting the locations of first and second test marks; determining a plurality of deviation factors for a plurality of attainable relative positions; and selecting an attainable relative position among the plurality of attainable relative positions that satisfies a selection criterion applied to the plurality of deviation factors.Type: GrantFiled: December 17, 2007Date of Patent: October 19, 2010Assignee: OCE-Technologies B.V.Inventors: Hylke Veenstra, Jaap J. Mattheijer, Matheus Wijnstekers, Joseph L. M. Nelissen
-
Patent number: 7806253Abstract: An apparatus for steering a belt includes a steering roller supporting the belt, a rotatable element and a transmission. The steering roller is rotatable about a first axis and pivotable about a second axis, the second axis being substantial perpendicular to the first axis. The rotatable element is rotatable about a third axis, the third axis being parallel to the first axis. The transmission is arranged for converting a rotational motion of the rotatable element about the third axis into a pivoting motion of the steering roller about the second axis. The rotatable element is rotatable by a frictional force between a side portion of the belt and the rotatable element. A method for steering a belt in a steering mechanism includes such an apparatus.Type: GrantFiled: October 1, 2008Date of Patent: October 5, 2010Assignee: Oce-Technologies B.V.Inventors: Julius V. C. Graswinckel, Jan P. J. Verstegen, Peter J. Hollands, Gerardus J. C. Van Soest, Kevin H. J. R. Prinsen
-
Patent number: 7809316Abstract: A transfer apparatus for transferring an image of a developer from an image-bearing medium onto an image receiving medium in a transfer zone includes a heating device that heats the image-bearing medium, an adjustable power supply device that supplies electrical power to the heating device, a first temperature sensor for sensing a basis temperature in the vicinity of the image-bearing medium away from the transfer zone and for transmitting to a controller a signal indicative of the basis temperature. The controller is adapted to adjust the power supplied by the power supply device to the heating device to obtain a target temperature in the transfer zone, in response to the signal indicative of the sensed basis temperature and based on a pre-established relationship between the power supplied to the heating device and a temperature difference between a temperature in the transfer zone and the basis temperature.Type: GrantFiled: April 5, 2007Date of Patent: October 5, 2010Assignee: Oce-Technologies B.VInventors: Lambertus M. L. Van Sas, Fransiscus M. J. Linssen
-
Patent number: 7804623Abstract: A method for correction of a trapezoidal distortion of images in image processing for improved medium-image registration and also for controlling a printing device by performing the method for correction of a trapezoidal distortion of images in image processing for improved medium-image registration. Also included is a printing device comprising a controller for performing the present methods.Type: GrantFiled: February 22, 2007Date of Patent: September 28, 2010Assignee: Océ-Technologies B.V.Inventors: Carolus E. P. Gerrits, Bastiaan J. H Middelbos
-
Patent number: 7798621Abstract: An inkjet printer including a cartridge for holding ink pellets and means for separating and releasing a single ink pellet and feeding it to the ink-supply unit of a printing head, the cartridge having at least one exit for releasing an ink pellet, wherein the separating and releasing means includes a rotatable shaft extending in a first transport direction provided with a spiralling member at the circumference of said shaft and a tangential movement confining member extending in a parallel direction with respect to said rotatable shaft, positioned at a distance from said spiralling member for confining the tangential movement of an ink pellet, engaging with said spiralling member to form a stable position for transporting said ink pellet in said first transport direction.Type: GrantFiled: January 17, 2007Date of Patent: September 21, 2010Assignee: Océ-Technologies B.V.Inventors: Frank J. H. Nottelman, Sandor H. G. Joppen
-
Patent number: 7794078Abstract: The invention relates to a method of printing a substrate using an inkjet printer which includes a holder to rotatably receive a roll on which the substrate is wound, a downstream print zone and an inkjet printhead for printing the substrate at the print zone, a transport means for engaging and transporting the substrate to the print zone during which transport the substrate is unwound from the roll, and a guide element which is situated downstream of the roll in front of the transport means to guide the substrate from the roll to the transport means, the method including the steps of transporting the substrate over a predetermined distance with control of the transport means, during which transport the guide element is moved from a first position which the guide element occupies prior to the transport, to a second position such that the distance over which the substrate extends between the roll and the transport means is smaller as a result of the movement and after the substrate has been transported over thType: GrantFiled: September 8, 2005Date of Patent: September 14, 2010Assignee: Oce-Technologies B.V.Inventors: Jeroen J. G. Coenen, Barry B. Goeree
-
Patent number: 7791629Abstract: An exposure device for a non-impact printing apparatus which includes a plurality of light-emitting elements for forming images, a driver element for individually applying energy output levels to the light-emitting elements, lens for focusing the light emitted by the light-emitting elements, storage ability for storing a list of setting values for setting the energy output levels, wherein the list includes a plurality of series of setting values, each one of the series enabling to attribute at least one setting value to each one of the light-emitting elements, each one of the series being selectable as a function of an exposure device condition. A method is also provided for adjusting a non-impact printing apparatus which includes the step of selecting the most adequate series of setting values on the basis of an analysis of the optical density of printed images on a receiving medium.Type: GrantFiled: June 17, 2005Date of Patent: September 7, 2010Assignee: Océ-Technologies B.V.Inventors: Paulus A. C. Groenen, Hendrikus G. M. Ramackers, Catharinus Van Acquoij
-
Patent number: 7791630Abstract: A method of adjusting an exposure device suited for an electrophotographic printer, the exposure device includes a plurality of light-emitting elements. The method includes the steps of energizing selected light-emitting elements according to a selection scheme, using a pre-determined energy level for energizing each selected light-emitting element and obtaining a corresponding exposure intensity distribution from the exposure device. The method further includes the steps of predicting a toner area coverage distribution, based on the obtained exposure intensity distribution and on a pre-established transfer function, obtaining an attribute of the predicted toner area coverage distribution and determining the setting values for the energy levels for energizing each selected light-emitting element such that the obtained attribute becomes a target attribute.Type: GrantFiled: December 12, 2006Date of Patent: September 7, 2010Assignee: Oce-Technologies B.V.Inventors: Hendrik J. Stolk, Martijn C. H. Van Hoorn, Lambertus W. Ogink, Reinier J. Ramekers
-
Patent number: 7788218Abstract: Digital documents are handled in networked document processing system that includes user workstations, document processing devices and a control system. A document storage is used for storing and managing digital documents associated with a user of a workstation. The control system includes a document email server where each email item in the server is linked with a digital document in the control system document storage. A processor manages the digital documents and keeps the owner of a digital document informed on the status thereof by synchronizing with the document email server so as to dynamically reflect status changes in the digital document files in corresponding email items for the owner. The workstations include a respective email client provided with at least one email folder linked to a user account in the document email server.Type: GrantFiled: April 28, 2006Date of Patent: August 31, 2010Assignee: OCE-Technologies B.V.Inventors: Jeroen P. E. Gerritsen, Timotheus J. W. M. Janssen
-
Patent number: 7775651Abstract: An ink jet device utilizing hot melt ink, said device including an ink reservoir, a heater arranged to heat ink contained in the ink reservoir, and a ventilation conduit which is connected to a ventilation opening in a top wall of the ink reservoir, said ventilation conduit containing a channel running upwards through a heated area. The ink jet device includes an ink melting unit for supplying melted ink to the ink reservoir, said ink melting unit being arranged to enable melted ink to flow into the ink reservoir from above, said channel of the ventilation conduit being in thermal contact with the ink melting unit.Type: GrantFiled: October 16, 2006Date of Patent: August 17, 2010Assignee: OCÉ-Technologies B.V.Inventors: Sandor H. G. Joppen, Peter J. Hollands
-
Patent number: 7777904Abstract: A method and system for printing documents are provided. New print jobs are automatically analysed with respect to the device-specific properties of the individual pages and each page is designated, on the basis of the analysis, either for processing on a printer of the first type or the second type. Then, the jobs are made locally available for printing on each of the printers. A user may locally start a job on any of the printers and that printer then automatically selects and prints only the pages of the job that are designated for processing on its own type of printer. Then, the user may locally start that same job on any of the printers of the other type and that printer then also automatically selects and prints only the pages of the job designated for processing on its own type of printer.Type: GrantFiled: February 22, 2005Date of Patent: August 17, 2010Assignee: OCÉ-Technologies B.V.Inventors: Robertus C. W. T. M. Van Den Tillaart, Monica M. W. M. Roosen, Gerardus J. Rozing, Arie Leppink
-
Publication number: 20100201057Abstract: A printing system includes a media storage module, a printing station for processing a portion of the receiving media, a receiving station for receiving the processed media, and a base member for supporting the printing system on a support surface. A receiving device is configured to receive a folding module for folding the processed receiving media. The receiving device is positioned substantially in a volume extending from the area defined by the cumulative normal projection of the media storage module and the printing station on the support surface, the volume extending perpendicular to the support surface in the direction of the printing station. A guiding device is configured to guide the processed media to one of the receiving station and the folding module. A method of modifying the printing system includes removing a media storage module to create a vacancy and inserting a folding module into the vacancy.Type: ApplicationFiled: April 2, 2010Publication date: August 12, 2010Applicant: OCE-Technologies B.V.Inventors: Michiel A.C. TERHAAG, Marco H.L.H. Kusters, Jeroen A.A. Van Assen
-
Patent number: 7771041Abstract: A medium support member has a first surface for supporting a print medium and a second surface opposite to said first surface. The medium support member includes a plurality of recesses formed in the first surface and a plurality of protrusions formed in the second surface such that each recess has an associated protrusion opposite thereto. Each recess has an air passage connecting the recess with an interprotrusional space formed between the protrusions. A printing system includes a device for image-wise application of marking material to a print medium, base member and the medium support member. A method of forming the medium support member includes supporting a sheet of base material, pressing a first punch to form the recess and the protrusion in the sheet of base material, and pressing a second punch such that a perforation is applied into the sheet of base material.Type: GrantFiled: August 31, 2006Date of Patent: August 10, 2010Assignee: Océ-Technologies B.V.Inventors: Chad A. Koehn, Jonathan H. J. J. Nikkel
-
Patent number: 7770991Abstract: A method and system for application in an inkjet printer containing a substantially closed ink duct in which ink is situated, said duct being operationally connected to an electromechanical transducer, the method including the steps of: actuating the transducer with a number of actuation pulses according to a predetermined actuation setting in order to eject ink drops from a duct nozzle, where a pressure wave is generated in the duct by an actuation pulse, this pressure wave causing a deformation of an electromechanical transducer which generates an electrical signal; analyzing the electrical signal; analyzing the signal for a plurality of different actuation settings, and based on which analysis, determining an actuation setting, on the one side of which setting the ejection of a drop is a stable process and on the other side of which setting, the ejection of a drop is an unstable process.Type: GrantFiled: February 2, 2006Date of Patent: August 10, 2010Assignee: Océ-Technologies B.V.Inventors: Hans Reinten, Thomas P. Huijgen, Hubertus M. J. M. Boesten