Abstract: Methods and systems disclosed herein provide for drying of wet colorants applied to a print media utilizing a substantially optically transparent drum that includes a radiant energy source. In one embodiment, a printer includes a hollow drum and a radiating energy source inside of the hollow drum. The energy source radiates energy for drying a wet colorant applied to a print media. The hollow drum surrounds the energy source and is substantially transparent to the radiated energy of the energy source. The drum includes a peripheral surface that contacts the print media as the print media transits along a print path. The drum conductively heats the print media for drying the wet colorant, and permits the radiated energy of the energy source to dry the wet colorant.

Abstract: Methods and systems disclosed herein provide for drying of wet colorants applied to a print media utilizing a substantially optically transparent drum that includes a radiant energy source. In one embodiment, a printer includes a hollow drum and a radiating energy source inside of the hollow drum. The energy source radiates energy for drying a wet colorant applied to a print media. The hollow drum surrounds the energy source and is substantially transparent to the radiated energy of the energy source. The drum includes a peripheral surface that contacts the print media as the print media transits along a print path. The drum conductively heats the print media for drying the wet colorant, and permits the radiated energy of the energy source to dry the wet colorant.

Abstract: A method is disclosed. The method includes receiving print data at an electrophotographic printer; examining the print data to determine if an image within the print data may be used to perform one or more process control measurements and performing the process control measurement if it is determined that the image may be used.

Abstract: Systems and associated methods provide for rewriteable lithographic printing. More specifically, imaging on a printing plate may be erased and the printing plate reimaged for subsequent printing. The printing plate includes a surface coated with a photoswitchable film. An ultraviolet light source is operable to generate an image on the photoswitchable film such that the photoswitchable film is operable to retain the ink on the image for transfer to a tangible medium. A visible light source is then used to erase the image from the photoswitchable film after transfer of the ink to the tangible medium. The photoswitchable film includes a layer of fluorinated azobenzene molecules operable to form the image when exposed to the ultraviolet light and erase the image when exposed to the visible light. The photoswitchable film also includes a bonding layer operable to bond the fluorinated azobenzene molecules to the surface of the lithographic printing plate.

Abstract: A method is disclosed. The method includes receiving print data at an electrophotographic printer; examining the print data to determine if an image within the print data may be used to perform one or more process control measurements and performing the process control measurement if it is determined that the image may be used.

Abstract: An apparatus, system and method of print registration are provided. The invention includes first and second optical channel modules configured to communicate light from a page to a sensor module. The sensor module sums the light from the first and second optical channel modules and detects one or more light transitions as a first registration mark of a first image of the page moves past the first optical sensor module and as a second registration mark of a second image of the page moves past the second optical channel module. The invention determines that the first image and the second image are registered if the sensor module detects a single light transition as the first registration mark and the second registration mark pass the first and the second optical channel modules.

Abstract: A method and system for a printing device is disclosed. The method and system comprise printing a test pattern on a print medium and generating a digital image of the printed test pattern by an imaging device. The method and system include analyzing an interference pattern to measure for distortion of the print medium and calibrating the printing device based upon the measured distortion. In a preferred embodiment, the present invention utilizes the reticle patterns, which are printed in the margins of the paper, which are measured real-time during printing. The interference or Moiré patterns created by superimposed reticles may be used to measure image distortion, process direction misalignment, and misregistration caused by web distortion.

Abstract: A process for the filtration of biopolymer solutions is described, comprising contacting a biopolymer solution with an adsorbent material having a pH in the range of 8.5 to 10.0, preferably for a period of about 15 minutes. Synthetic calcium silicate and magnesium oxide are the preferred contacting materials.

Abstract: A low beverage soluble iron content filter aid, especially diatomite, is disclosed, as is the method for its production, which comprises contacting the granular filter aid with tannic acid, gallic acid, or mixtures thereof, preferable in aqueous solution. Color control agents such as citric acid may also be present in the solution. The treated filter diatomite is useful in the filtration of vegetable based beverages, especially beer, wine, ale and fruit juices. The invention is also applicable to other filter aids which contain beverage soluble iron, such as perlite.

Abstract: A low beverage soluble iron content filter aid, especially diatomite, is disclosed, as is the method for its production, which comprises contacting the granular filter aid with tannic acid, gallic acid, or mixtures thereof, preferable in aqueous solution. Color control agents such as citric acid may also be present in the solution. The treated filter diatomite is useful in the filtration of vegetable based beverages, especially beer, wine, ale and fruit juices. The invention is also applicable to other filter aids which contain beverage soluble iron, such as perlite.