Patents Assigned to CANON PRODUCTION PRINTING HOLDING B.V.
  • Publication number: 20240181790
    Abstract: A method of printing and stacking sheets improves the relative alignment of images in a stack of printed sheet. The method includes feeding a sheet at least twice past a printhead assembly for printing an image on both sides of the sheet, wherein in the first and second passes the respective front and back images are aligned with respect to a first edge of the sheet by detecting a skew angle between the first and second edges and applying the skew angle to align the front and back images; and stacking the sheet, wherein the sheet is registered to a predetermined stacking reference direction by one of its edges, and wherein during the stacking, the sheet is registered by its first edge.
    Type: Application
    Filed: November 24, 2023
    Publication date: June 6, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Anne A. WIND, Ronnie E.A. BLOM, Christopher J. BORCHERT, Müge ARTAR
  • Publication number: 20240176563
    Abstract: A method for a printer including a transport device including an endless transport belt supported on a pair of support rollers, which between them define a medium support plane, over which medium support plane a print station is provided. The method includes transporting in parallel a plurality of individual print media perpendicular to a scanning direction of the print station on the medium support plane, the print media having different dimensions; determining positions of the individual print media based on the determined positions; and jetting marking material for forming a designated image specific for each print medium on each respective print medium. The above steps are repeated such that print media are printed in a plurality of parallel lanes on the medium support plane perpendicular to the scanning direction.
    Type: Application
    Filed: November 16, 2023
    Publication date: May 30, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Eduardus J.W. VAN VLIEMBERGEN, Martinus G.M. LANGE
  • Publication number: 20240165968
    Abstract: An inkjet printing device for printing to a recording medium includes a printing unit that has a plurality of print bars that respectively have one or more print heads. The printing device also includes a transfer printing sled to guide the recording medium, which can be moved into and out of a space below the printing unit. In a print operation state, the transfer printing sled is arranged in the space and guides the recording medium during printing. In a maintenance operation state, the transfer printing sled is moved out of the space. The printing device also includes at least one cleaning element for cleaning at least one print head of the printing module. In the transport direction of the recording medium, the at least one cleaning element is arranged laterally next to the space in the print operation state and in this space in the maintenance operation state.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 23, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Stefan Mayr, Mehrad Biglari, Stephan Pilsl
  • Publication number: 20240165973
    Abstract: A method for a printer including a transport device including an endless transport belt, supported on a pair of support rollers which between them define a medium support plane, over which medium support plane a print station is provided. The method includes transporting in parallel a plurality of individual print media perpendicular to a scanning direction of the print station on the medium support plane, the print media having different dimensions, determining positions of the individual print media and based on the determined positions, jetting marking material for forming a designated image specific for each print medium on each respective print medium. The above steps are repeated such that print media are printed in a plurality of parallel lanes on the medium support plane perpendicular to the scanning direction.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 23, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Eduardus J. W. VAN VLIEMBERGEN, Martinus G. M. LANGE
  • Patent number: 11970014
    Abstract: The invention relates to a method for profiling a print medium for use in a printing system. The print medium is received in an input holder and a plurality of test jobs is received in a test job receiver. For each test job a uniquely determined combination of at least a first printing system parameter of print speed of the printing system and a second printing system parameter of coverage of the marking material is intended to be prepared by a print controller. The printing system registers a test result of each test job. The print controller creates a two-dimensional media print mode table of media print modes for the print medium to be profiled based on the test results of the test jobs for the print medium. When a print job arrives intended to be printed on the profiled medium, a media print mode is selected from the two-dimensional media print mode table.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 30, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventor: Eduardus J. W. Van Vliembergen
  • Patent number: 11966646
    Abstract: In a method for selecting a print job and displaying the print job on a second window, the print job includes a digital image to be printed on an image receiving medium by a digital printer having a user interface including a first window representing a waiting room for the print job which is selectable to be printed, and the second window for displaying a virtual representation of the image receiving medium. The method includes displaying a corner indication on the second window, the corner indication indicating a location where a top left corner of the digital image of the print job will be placed on the image receiving medium, and selecting the print job in the first window. Upon selection of the print job in the first window, the corner indication is replaced by a canvas item with a size of a layout of the digital image of the selected print job, and the corner indication is moved to a location on the virtual representation where a next to be selected print job will originate.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: April 23, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventors: Martinus G. M. Lange, Eduardus J. W. Van Vliembergen, Andrea E. J. Meessen, Arjan Kroes, Bastiaan J. Hermus, Tim F. P. Paffen
  • Patent number: 11958302
    Abstract: An ink printing device has a dryer chamber that is connected via two openings with the internal space of the printer. To detect whether operational exhaust air flows, as leakage air, from the drying chamber into the internal space, the temperature in the opening region may be measured and compared with a reference value. Given a temperature difference above a threshold value, an error signal is generated and/or corresponding countermeasures are taken in order to reduce the leakage.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: April 16, 2024
    Assignee: Canon Production Printing Holding B.V.
    Inventor: Stefan Röhl
  • Patent number: 11945212
    Abstract: A printer includes a print station; a media transport mechanism arranged for conveying print media on a transport path past the print station, the transport mechanism having a support surface for supporting the media; and a vacuum device arranged for attracting the media against the support surface on a section of the transport path downstream of the print station. The vacuum device is divided, in the direction along the transport path, into at least two segments in which the media are attractable with different non-zero suction pressures.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: April 2, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventors: Marcel J. H. M. Haenen, Ludovicus M. Heijnders
  • Publication number: 20240100821
    Abstract: In a method for printing a digital image in swaths with a swath time corresponding to the width of the digital image on the image receiving medium in the main scanning direction, the print controller issues a trigger that a spitting action for at least part of the printing elements of the print head needs to be performed. A swath time of subsequent swaths is gradually increased until the print head reaches a maintenance tray at a side of the print surface. The print head stays at the maintenance tray until air between the print head and the maintenance tray has approximately reached a standstill. Then, at least part of the printing elements of the print head are spitting marking material in the maintenance tray. After the spitting, the swath time of subsequent swaths is gradually decreased until the swath time is corresponding again with the width of the digital image on the image receiving medium in the main scanning direction. A digital inkjet printer is configured to perform the method.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 28, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventor: Koen J. KLEIN KOERKAMP
  • Publication number: 20240092095
    Abstract: In a method of controlling a digital inkjet printer, the digital printer is arranged to operate in a selected first print mode which includes a first speed in a main scanning direction. A digital image and a print setting that the digital image is planned to be printed in an enhanced adhesion print mode are received. A time period needed for a pass in the main scanning direction is extended by lowering a speed from the first speed to a second speed, and by enlarging the pass width up to a maximum medium width and/or by temporarily stopping the printer at an end of the pass. Marking material is ejected during the pass on the image receiving medium by a print head at the second speed within the extended time period, and is cured by a UV curing device at the second speed within the extended time period.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 21, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Fredericus P.H. THEUNISSEN, Koen J. KLEIN KOERKAMP
  • Publication number: 20240086294
    Abstract: Method for graphically providing status information of a data processing system having a plurality of disjunct system statuses, wherein the data processing system is monitored during a predetermined period of time. A donut chart is created which has an inner hole region linked to the one particular system status and an outer region having as many segments as the total number of system statuses in the collection minus one. An area size of the inner hole region and an area size of each segment in the outer region is proportional to the amount of time that the corresponding monitored system status occurred during the predetermined period of time.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 14, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Pascal A.M.S. HAGENS, Jeroen BLOM
  • Patent number: 11926161
    Abstract: A modular print bar may include at least one first print head module and at least one second print head module. Each print head module may include a base plate with which at least one print head can be connected. At least one first ink supply line for supplying ink to the respective print head may respectively run in the base plates. The print head modules may be firmly connected to a print bar such that a connection can be established between the first ink supply line of the first print head module and the first ink supply line of the second print head module.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Florian Hitzlsperger, Ulrich Stöckle
  • Publication number: 20240075753
    Abstract: A device is described that is designed to activate the different heating elements of a drying unit respectively per block within a heating cycle in order to enable an operation of the drying unit that is particularly power-efficient and gentle on the mains.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventors: Stefan Scherdel, Michael Mayr
  • Publication number: 20240077846
    Abstract: A method for predicting a service state of a printing machine at a defined point in time includes: measuring a plurality of successive process values of a process parameter which is an indicator of the functionality of the printing machine; determining a plurality of successive scatter values which describe the spread of the measured process values within a predetermined time range; determining a local scatter minimum of the scatter values; determining a baseline, in that a baseline value is established that correlates with the value of the process parameter at the point in time of the local minimum and that does not change up until a new determination of a baseline; and determining a health value at a specific point in time, with a predetermined relation of the process value to the baseline value at this point in time. A service state is assessed upon the health value exceeding a predetermined threshold.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Applicant: Canon Production Printing Holding B.V.
    Inventor: Christoph Wüstner
  • Patent number: 11912015
    Abstract: An air knife assembly is provided to jet an air current to control the landing of sheet of print media during transfer between two adjacent conveyors in a printer. The air knife forming unit is configured for jetting an air curtain formed such that said air curtain and air currents resulting from it flow substantially perpendicular to a transport direction of the conveyors. Thereby, lifting and consequently wrinkling of the leading edge during transfer and landing may be avoided.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: February 27, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventors: Peter G. La Vos, Adrianus A. Draad, Hendrikus G. M. Ramackers
  • Patent number: 11891262
    Abstract: To ensure reliable and productive processing of printed sheets into stacks, a sheet stacker includes: a flipping device for flipping a sheet with respect to the sheet's orientation before being received by the flipping device onto a stack support or a stack of sheets on the stack support; a sensor assembly for detecting an out-of-plane deformation of a top sheet with respect to the underlying stack support or a stack of sheets on the stack support at least for each sheet added to the stack; and a controller configured to determine from data from the sensor assembly whether the top sheet was successfully flipped and stacked.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: February 6, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventors: Peter J. W. Van Dongen, Dominique M. L. Perdaen, Christopher J. Borchert
  • Patent number: 11884064
    Abstract: A printing device may include two printers for printing to the front side and the back side of a recording medium. The physical page length of at least one print image applied onto the front side of the recording medium is determined. The required page length of at least one print image to be applied onto the back side of the recording medium is adapted to the determined page length. At least one print line of the print image for the back side is printed repeatedly if the required page length for application of the rear print page onto the back side of the recording medium is smaller than the determined page length.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 30, 2024
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Martin Stockmar, Stefan Brecht, Hubert Drexler
  • Patent number: 11878512
    Abstract: In a method for fixing a print good in a printing system, the print good is a substrate printed to with ink, and the print speed of the print good is initially determined. Air heated to a predetermined temperature is then blown onto the print good. The heated air is supplied with a volumetric flow rate that is adjusted depending on the print speed.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: January 23, 2024
    Assignee: Canon Production Printing Holding B.V.
    Inventors: Bernhard Hochwind, Georg Landmesser, Alfred Zollner
  • Patent number: 11872817
    Abstract: For printing to a recording medium in the form of a web that is moved in a horizontal direction to the printing position by a web carriage. There, the recording medium is raised up to the print heads. To clean the print heads, a maintenance carriage is used that is moved horizontally into a maintenance position below the print bars. There, a cleaning unit with covering caps is then driven upward to the print heads in order to either place a covering cap onto the print heads or clean the print heads. The web carriage and the maintenance unit are moved only in a horizontal direction while the printing unit remains stationary.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: January 16, 2024
    Assignee: Canon Production Printing Holding B.V.
    Inventor: Werner Zollner
  • Patent number: 11866283
    Abstract: A sheet stacking apparatus includes a sheet alignment mechanism configured for aligning a sheet in a predetermined reference position; a gripper arrangement configured to grip the aligned sheet at at least two spaced-apart points of the sheet and to release the sheet on a stack; and a holder configured to hold the sheet in position on the stack while the gripper arrangement releases the sheet. The gripper arrangement is movable along a predetermined trajectory for moving the sheet from the reference position to a stacking position.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 9, 2024
    Assignee: CANON PRODUCTION PRINTING HOLDING B.V.
    Inventors: Lodewijk T. Holtman, Fabian T. Rosenboom, Hermanus M. Kuypers