A screen-printing apparatus for repeatedly marking an indicium at regularly spaced intervals or predefined discrete intervals on a surface or medium. The screen-printing apparatus includes a wheel mounted to a housing. A screen frame can be mounted to a housing that can interchangeably receive a screen having void(s) of a shape that corresponds to the indicia to be printed. The screen-printing apparatus also has an ink supplying unit that sprays ink over the top surface of the screen. A solenoid operably coupled to the ink supplying unit for triggering the ink supplying unit. The solenoid and the wheel are operably coupled to a control unit, the control unit can receive readings from the wheel about the distance covered by the wheel on the surface and based on the readings can trigger the solenoid at predefined intervals.

This invention discloses an offset printing press for printing securities, which includes an offset printing unit, inspection camera unit, and sheet quality determination unit. The offset printing unit prints a ground tint pattern on a transported paper sheet. The inspection camera unit is arranged upstream of the offset printing unit in the direction in which the paper sheet is transported, and captures an image of the paper sheet. The sheet quality determination unit determines the quality of the paper sheet based on image data output from the inspection camera unit.

In order to provide a numbering and imprinting machine capable of minimizing the amount of wasted paper produced, the numbering and imprinting machine is provided with: a first-number inspection camera (124B) that is arranged downstream of the position of contact between an impression cylinder (112) and a first-number cylinder (113) of a first-number printing unit (111) in the direction of rotation of the impression cylinder (112), and images a first number printed on paper (W) held on the impression cylinder (112); a second number inspection camera (124C) that is arranged downstream of the position of contact between an impression cylinder (117) and a second-number cylinder (118) of a second-number printing unit (116) in the direction of rotation of the impression cylinder (117), and images a second number printed on paper (W) held on the impression cylinder (117); and a printing-press control device (10) that controls first- and second-number-cylinder throw-on and throw-off devices (38, 39) based on signals from the first- and second-number inspection cameras (124B, 124C) to cause the first-number cylinder (113) and the second-number cylinder (118) to make separating movements.

Example systems and related methods may provide improved defect detection and resolution for a plurality of printing devices. An example method includes receiving information indicative of at least one aspect of a printing device from among a plurality of printing devices. The plurality of printing devices is communicatively coupled to a server. Each printing device of the plurality of printing devices includes a sensor configured to provide information indicative of at least one aspect of the respective printing device. The method also includes, based on the received information, accumulating, at the server, historical data corresponding to the at least one aspect of the plurality of printing devices. The method yet further includes comparing the accumulated historical data with model reference data. The method additionally includes, based on the comparison, determining highlighted data and causing a display device to display the highlighted data.

Example systems and related methods may provide improved defect detection and resolution for a plurality of printing devices. An example method includes receiving information indicative of at least one aspect of a printing device from among a plurality of printing devices. The plurality of printing devices is communicatively coupled to a server. Each printing device of the plurality of printing devices includes a sensor configured to provide information indicative of at least one aspect of the respective printing device. The method also includes, based on the received information, accumulating, at the server, historical data corresponding to the at least one aspect of the plurality of printing devices. The method yet further includes comparing the accumulated historical data with model reference data. The method additionally includes, based on the comparison, determining highlighted data and causing a display device to display the highlighted data.

In order to provide a numbering and imprinting machine capable of minimizing the amount of wasted paper produced, the numbering and imprinting machine is provided with: a first-number inspection camera (124B) that is arranged downstream of the position of contact between an impression cylinder (112) and a first-number cylinder (113) of a first-number printing unit (111) in the direction of rotation of the impression cylinder (112), and images a first number printed on paper (W) held on the impression cylinder (112); a second number inspection camera (124C) that is arranged downstream of the position of contact between an impression cylinder (117) and a second-number cylinder (118) of a second-number printing unit (116) in the direction of rotation of the impression cylinder (117), and images a second number printed on paper (W) held on the impression cylinder (117); and a printing-press control device (10) that controls first- and second-number-cylinder throw-on and throw-off devices (38, 39) based on signals from the first- and second-number inspection cameras (124B, 124C) to cause the first-number cylinder (113) and the second-number cylinder (118) to make separating movements.

A printing result prediction device is configured to predict a volume of solder paste printed by a printer onto a substrate. The printer is configured to print the solder paste by filling the solder paste into a stencil aperture of a stencil disposed on the substrate. The printing result prediction device includes a calculation part. The calculation part is configured to input a printing condition to a prediction model trained by machine learning, and predict a volume of solder paste printed by the stencil aperture of the stencil in a next printing using the input printing condition. The printing condition includes stencil information related to the stencil used to print, solder paste information related to the solder paste used to print, substrate information including unevenness information related to a protrusion on the substrate used to print, and a printing parameter of an operation of the printer when printing.