摘要:
A printing apparatus and display system including a detachable printing apparatus that enables printing and/or erasing of display information directly to and/or from display systems. The printing apparatus may print and delete color images to/from a substrate using a printing mechanism and a plurality of color toners, using a detachable mobile printing apparatus. The printing apparatus may enable recycling of erased toner from previously erased images.
摘要:
A wide format printing system, apparatus and method are provided to enable standard printing units to print images in a selected wide format. In some embodiments the printing system includes a printing controller, image recognition unit, and a wide format printing apparatus including a plurality of printing sub-units being positioned to precisely cover the width of a substrate of selected size.
摘要:
An electrophotographic printing apparatus and method are provided to separate particles of at least one toner color from a mixture of colored toner particles. The toner separating apparatus may include a charging source, developer unit, and illumination unit that may illuminate a drum surface using one of more light wavelengths, after the developer has covered the drum surface with multi-color toner mixture. The printing apparatus may enable separation of a mixture of colored toner particles into the component colors, thereby enabling re-using of erased toner particles collected from previously erased colored images.
摘要:
A method and apparatus for direct production of photopolymeric printing plates. The method comprises forming a positive and/or negative image on a substrate by ink-jet printing with a photopolymeric ink composition, optionally preheated. The apparatus for carrying out the method of the invention comprises a rotatable drum adapted for retaining on its inner or outer surface the substrate to be printed; a carriage, displaceable axially in respect of the drum; a container for a photopolymeric ink composition; at least one nozzle communicating with the carriage for ejecting the photopolymeric ink composition; and a UV source located so as to expose the printed surface of the substrate to UV radiation.
摘要:
A method of operating for an ink jet printer having a printer head bearing a plurality of equi-distantly spaced ink jets for printing parallel lines of dots on a substrate in n passes of the print head over the substrate. Between each pass of the printer head over the substrate, the printer head is displaced in a direction perpendicular to the direction of the lines by a distance y that satisfies: (i) y=m1×a where m1 is a natural number equal to 2 or more and a is the separation gap between adjacent lines; (ii) y is not a multiple of the inter ink jet separation distance of the printer head; and (iii) m1 and n do not have a common factor except the factor with the value of 1. These conditions on y ensure that two adjacent lines are printed by different ink jets and that each line is printed by only one ink jet.