Canon Production Printing Patente

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An inkjet print head assembly comprises a MEMS-manufactured inkjet chip, a print head base element and a damper element. The MEMS-manufactured inkjet chip is provided with a number of ejection units, each comprising a nozzle and a liquid supply port, wherein the liquid supply ports are arranged in a second chip surface. The print head base element has a liquid supply recess, the inkjet chip being arranged on the print head base element over the liquid supply recess. The second chip surface faces the liquid supply recess such that the liquid supply ports are in fluid communication with the liquid supply recess. The damper element comprising a flexible wall arranged over a closed hollow space and is arranged in the liquid supply recess. The flexible wall faces the liquid supply ports and is arranged at a predetermined damper distance from the second chip surface.

<div notation="docdba" type="abstract" xml:base="/api/emi/section/f45d8041-9591-4f95-95ed-c267861c63fc/image" xml:lang="en"><p>The invention relates to a method for processing a print job on a document processing system comprising a plurality of devices. The plurality of devices comprise at least one printer and at least one finisher in order to deliver an end print product according to print specifications of the print job. Each device of the plurality of devices is described in a dedicated device model comprising constraints and capabilities of said device. The method comprises the steps of receiving a print job at the document processing system with print specifications, generating a production route for the end product by selecting by means of the device models at least one printer and at least one finisher to deliver the end product, simulating the production route for the end product by executing the device models for the selected devices, generating directly from the simulation of the production route finishing instructions for the at least one finisher, and processing the print job by printing the end product by the at least one printer and by finishing the end product by the at least one finisher according to the generated finishing instructions.</p></div>

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During flipping sheets (S) may fold upon themselves under the influence of gravity. To prevent a sheet stacker (1;100; 200) is provided with a holding device (20; 120; 220) for releasably holding at least a portion of the sheet at least partially during the flipping of the sheet by a sheet flipping device (2), wherein the holding device is configured for movement of the held portion of the sheet in a first direction (D) perpendicular to the flipping axis.

A user interface system for displaying on a window digital dynamic status information tiles, each digital dynamic status information tile comprising information of a live status of a functional object connected to the dynamic user interface system and at least one user notification of the functional object, having a navigation option to a digital user representation of the functional object, and being configured to be pinned to a digital task bar on the window. The sequence order of the dynamic status information tiles on the digital task bar dynamically depends on a priority criterion for the live status and/or the at least one notification of the dynamic status information tiles.

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The invention provides a method for operating a printing system including a printer and a finisher. The invention further provides a printer controller, a printer, a printing system, a computer program product and a software medium. Time ordinarily spent idle by a printer because of a necessary setup time by the finisher is utilized to make more efficient use of time. The otherwise idle time may be used to start printing a sheet of the next print job sooner, or may be used to print a quality assurance sheet that is desired in any case. Measures can also be taken to prevent maintenance actions that can take a lot of time by rendering the idle time of the printer shorter than a trigger time that triggers the maintenance action.

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A sheet transfer device (60) for transferring a sheet between two sheet processing devices (39, 58, 59) comprising a switch (62) for directing sheets from a first transport path (64) coming from the first sheet processing device onto a two-way transport path (66) or for directing sheets from the two-way transport path onto a second transport path (68) for feeding sheets to the second sheet processing device. A transport pinch (70) is provided along the two way transport path for reversing a sheet on the two-way transport path. When in use, the two-way transport path extends downward in a vertically extending free-hanging chamber (80) wherein the sheet engaged by the transport pinch is allowed to hang freely under the influence of gravity. Thereby, a compact device is formed which is able to adjust the sheet to a suitable orientation for the second processing device. The device further prevents forces from the first processing device to disrupt the sheet's orientation in the second processing device.

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A flatbed with a medium support plate assembly (1) comprising a plurality of through-holes (H1-H4) and defining different suction zones (Z1-Z3) for differently sized print substrates, wherein each through-holes (H2-H4) along the full circumference (C) are configured to have average cross-sectional through-flow area per unit area larger than through-holes (H1) in a central area (A) circumscribed by said circumference.

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A method for calibrating and converting colours of a digital image into printer specific colorant control values is disclosed. This method comprises the steps of calibrating a specific printer of a printer type according to a printer type specific procedure, wherein for each colorant separately a one-dimensional relationship between a printer tone value and a colorant control value is established; profiling the printer type to establish an output profile that defines a relationship between colour values in a profile connecting colour space and the printer tone values; deriving from the input profile and the output profile a one-dimensional relationship between a black channel and the black printer tone value of the printer; determining if an image colour value is to be converted either by using the profiles or by using the one-dimensional relation; converting the image colour value and subsequently using the printer calibration relations to obtain the colorant control values. This procedure enables the use of G7 colours in a printer that is limited in its amount of colorant that can be applied locally.