Abstract: The invention relates to printing of documents, for example bank checks. According to the various aspects of the invention, a printing system, process and product with microprinting are provided. Documents printed as described may include digitally variable microprint and other enhancements. The invention is particularly useful for enhanced security documents and the production thereof.

Abstract: Disclosed is a method and apparatus for the viewing and acquisition of images of a document such as a book, including the automated and reliable turning of pages of the document, while supporting it in a manner to facilitate viewing or imaging of the facing pages.

Abstract: The invention relates to printing of documents, for example bank checks. According to the various aspects of the invention, a printing system, process and product with microprinting are provided. Documents printed as described may include digitally variable microprint and other enhancements. The invention is particularly useful for enhanced security documents and the production thereof.

Abstract: An electrostatographic recording method for printing an image on a receiver comprising the steps of: operating a primary charger to establish a uniform primary voltage level on an image recording member; developing a control patch on the image recording member, measuring density of the control patch to thereby provide a density measurement signal; converting the image into a digital bitmap comprised of an array of pixels wherein each pixel is assigned a digital value representing marking information; rendering the digital bitmap by defining each pixel as either a background pixel, interior pixel, or an edge pixel and reassigning the digital value of one or more of edge pixels or interior pixels independently and as a function of the density measurement signal; modulating electrostatic charge on the image recording member as a function of the digital bitmap after rendering.

Abstract: A method of rendering the appearance of a printed input digital image comprised of an array of pixels and wherein each pixel is assigned a digital value representing marking information, the method comprising defining each pixel as either a background pixel, interior pixel, or an edge pixel; and, reassigning the digital value of the edge pixels or interior pixels independently of one another. The rendering of the present invention occurs post RIP.

Abstract: An electrostatographic recording method for printing an image on a receiver comprising the steps of: operating a primary charger to establish a uniform primary voltage level on an image recording member; developing a control patch on the image recording member, measuring density of the control patch to thereby provide a density measurement signal; converting the image into a digital bitmap comprised of an array of pixels wherein each pixel is assigned a digital value representing marking information; rendering the digital bitmap by defining each pixel as either a background pixel, interior pixel, or an edge pixel and reassigning the digital value of one or more of edge pixels or interior pixels independently and as a function of the density measurement signal; modulating electrostatic charge on the image recording member as a function of the digital bitmap after rendering.

Abstract: An electrostatographic recording apparatus and method wherein a primary charger establishes a uniform electrostatic charge on an electrophotoconductive image recording member in accordance with a first operating parameter. A recording device imagewise modulates the charge on the image recording member to form electrostatic latent images in accordance with a second operating parameter and also forms a developable process control patch. A development station develops the electrostatic latent images and the control patch on the image recording member with toner in accordance with a third operating parameter. A replenishment device provides toner to the development station at a controlled rate in accordance with a replenishment signal.

Abstract: An electrostatographic recording method and apparatus includes an auto cycle-up routine for establishing readiness of various stations including a toning station for proper operation. In the automatic cycle-up routine proper operation of a toning station warmer is determined by a controller. The controller then establishes a first cycle-up duration when the toning station warmer is determined to be operating satisfactorily and a second and longer cycle-up duration when the toning station warmer is determined to be not operating satisfactorily.

Abstract: A color filter array is disclosed comprised of red, green, and blue filters forming an interlaid pattern. Each of the red, green, and blue filters is formed of two superimposed filter layers, each made up of a different subtractive primary dye. Layers of controlled thickness containing a single dye permit precise control of filter density and hue. The color filter array can form part of a viewable display unit or form part of an image sensor.