摘要:
A conveyance control device controls conveyance of a plurality of sheets including an image-formed sheet. The conveyance control device includes an obtaining unit configured to obtain display image data indicating a display image of each of the plurality of sheets; a region-specifying unit configured to specify common color regions having a common display color on the plurality of sheets based on the display image data; and a multiple feed detector configured to detect multiple feed of the sheets based on a light-receiving amount of light irradiated onto the common color regions; wherein the display image data indicating a display image of the image-formed sheet includes predetermined image data indicating a predetermined image to be previously formed and sheet image data indicating a sheet image displayed in a sheet color of the sheet.
摘要:
A printing apparatus includes a control unit that calculates a transport amount (an actual transport amount) during a transport period based on a captured image of a medium by an imaging unit and controls a transport unit. In addition, the control unit calculates the transport amount (the actual transport amount) during the transport period by calculating the transport amount at each calculation interval (a divided transport amount) and integrating the transport amount at each calculation interval (the divided transport amount). Then, the control unit causes the calculation interval to be longer in a case where the transporting speed of the medium is low than in a case where the transporting speed of the medium is high.
摘要:
A method for defining an evaluation region of a register sensor for detecting register marks on printing substrates in printing substrate processing machines includes connecting the register sensor to a computer. In a first step, the register sensor measures an edge of a printing substrate, starting from the edge, the evaluation region is set to a starting value, and in at least one second step, the evaluation region is set to an increased value until the register sensor detects a first edge of the register mark.
摘要:
Methods and apparatus of producing collectible cards are disclosed. An example method includes producing a first stack of cards including a first card type and a second card type from a single substrate sheet, separating the first stack of cards into a first sub-stack and a second sub-stack. The first sub-stack includes the first card type and the second sub-stack includes the second card type. The example method includes comparing a first top card of the first sub-stack to a first reference card and, based on the first top card being substantially similar to the first reference card, automatically transferring the first sub-stack to a first tray designated to receive the first card type.
摘要:
A multi-feed detection apparatus for detecting multi-feed of a sheet conveyed along a paper path is provided. The apparatus includes a first movement amount sensor disposed on the paper path to face a first surface of the sheet to detect a movement amount of the sheet; a second movement amount sensor disposed, on the paper path, in a position at which the first movement amount sensor is disposed to face a second surface of the sheet to detect a movement amount of the sheet; and a determination portion configured to determine that a conveyance state of the sheet is multi-feed when a difference between the movement amount of the sheet detected by the first movement amount sensor and the movement amount of the sheet detected by the second movement amount sensor is equal to or greater than a threshold.
摘要:
A method and a device for monitoring a post print processing machine through which printed products are successively transported. An image recording device is assigned to the post print processing machine and connected to a computer unit for recording during each operating cycle an image series with at least two images of a printed product, spaced apart by a time interval. The images of the image series are transmitted to the computer unit and the images are displayed in real time on a display device that is connected to the computer unit.
摘要:
The unstacker device (1) for unstacking flat articles comprises: a magazine (3) in which the articles (2) to be unstacked are disposed on edge in a stack against a jogging edge (5) and facing an unstacking plate (4) arranged to separate a first article (2A) and to drive it in a certain unstacking direction (A) that is perpendicular to the jogging edge (5); a conveyor (7) for conveying the unstacked articles, the conveyor having an inlet (7A) downstream from the jogging edge (5); and retaining means (8) disposed between the jogging edge (5) and the inlet of the conveyor (7A) and actuated to exert a retaining force on an article (2A, 2B), which retaining force opposes movement of the article. The device further comprises a detector device (9, 10) suitable for sensing and analyzing the trace of the article moving between the jogging edge and the conveyor so as to detect the presence of a plurality of articles moving together, and, on the basis of such detection, so as to actuate said retaining means for the purpose of separating said articles.
摘要:
There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can improve the user friendliness in recovery processing when a jam has occurred during conveyance of a paper. The paper conveying apparatus includes a sound signal generator for generating a sound signal, a sound jam detector for determining whether a jam has occurred based on the sound signal, a control module for stopping conveyance of a paper when the sound jam detector determines that the jam has occurred, a paper state detector for detecting a state of the paper, and a recovery processing module for performing recovery processing which resumes conveyance of the paper in accordance with a content of detection of the paper state detector when the sound signal generator outputs a predetermined sound signal after stopping conveyance of the paper by the control module.
摘要:
The invention relates to a method and a device for checking print products of the same kind, more particularly printed sheets of paper of the same kind, which are transported by a conveying device. For this purpose, during a teach-in phase, test images are recorded at a plurality of points on the print product by means of a digital camera. The test images recorded, or parts thereof, are analyzed with respect to their characteristic information, and the test image having the most distinct characteristic information is selected as the reference image. For the purpose of checking print products of the same kind, the subsequent print products of the same kind are checked by recording at least one image at a position corresponding to the reference image and by comparing it with the image data of the reference image. Such checking is carried out by means of a device comprising a digital camera for recording test images of the print product, an illuminating device for illuminating the print product, an input for supplying a position signal, and a control and evaluation unit for controlling the digital camera and the illuminating device and for analyzing image data produced by the digital camera. The invention further relates to a computer program and to a computer program product.
摘要:
According to aspects illustrated herein, there is provided a method and system for measuring and controlling an angular orientation of a printed sheet along a feed path of a print making device, the printed sheet being a sheet of paper with a paper edge moving along the feed path and an image printed thereon. The method includes the following steps. First, moving the printed sheet past at least one pair of optical sensors to determine a first skew of the paper edge with respect to a first fixed reference and a second skew of the image with respect to a second fixed reference. Then, combining the first skew and the second skew to determine the total skew between the paper edge and the image. Finally, correcting the total skew for subsequent sheets using the first skew and the second skew information. Similar steps can be taken to determine the lateral positioning errors which can then be corrected.