摘要:
A media handling device includes sensing means disposed in a media elevator that is movable in a generally-vertical travel path proximate to a generally-fixed surface. The sensing means detects a recorded information that is disposed in the surface. The resulting detected information is used to identify the media elevator's current position. Also, another media handling device includes a recorded information disposed in a movable media elevator. Sensing means are fixed proximate to a generally-vertical media elevator travel path. The recorded information is sensed and the resulting detected information is used to identify the media elevator's current position.
摘要:
In accordance with various embodiments, there are printing apparatuses and methods of enhancing an image quality on a media. The method of enhancing an image quality on a media can include providing an ink-based halftone image on a media, wherein the halftone image can include an amount of noise. The method can also include depositing a transparent overcoat layer at least over the halftone image, wherein the transparent overcoat layer can include a major amount of cross-linkable resin and a minor amount of a photoinitiator. The method can further include embossing the transparent overcoat layer to form an embossed micro-structured overcoat layer and curing the embossed micro-structured overcoat layer to form the micro-structured overcoat layer, such that the micro-structured overcoat layer reduces the amount of noise.
摘要:
Color measurements of color samples are estimated by a system and method wherein an area coverage of a color sample is computed, the color sample is printed, a color of the printed color sample, such as a set of reflectance values, is measured at a first temperature, and a color of the printed color sample is estimated at a second temperature lower than the first temperature, the estimation being based on the area coverage and a thermochromatic model which represents relationships between measured colors of printed color samples at the first and second temperatures.
摘要:
An inkjet printer is configured to reduce the settling of magnetic particles in magnetic ink. The inkjet printer is configured to eject magnetic ink and black ink in areas where the corresponding image data only has black ink pixels. The printing of the magnetic ink in the black ink areas helps prevent the magnetic particles in the magnetic ink from settling.
摘要:
A leveling and spreading system has been developed that enables the speed and position of the web to be determined from a sensor on a first roller. In a duplex print process, the first roller also reduces a temperature of the media web and an ink image printed in the first side print operation to within a first predetermined temperature range. A second roller modulates the temperature of the media web and ink ejected onto the media web immediately before the web enters the leveling and spreading system to within a second predetermined temperature range to enable uniformity of the ink and web temperatures for spreading the ink in a nip formed with a third roller.
摘要:
A measurement module for a printer generally includes a page diverter mechanism configured to selectively divert a sheet of media from a main media path to a module media path; a rotating drum configured to receive the media from the module media path and to affix the media on an outer surface of the drum; a measuring device spaced adjacent to the drum and configured to measure as aspect of the media affixed to the surface of the drum; and a sheet transport configured to remove the media from the drum. According to one embodiment, the module may include a drum with an electrostatic hold-down mechanism that captures a sheet and an axially translating measuring device that is configured to read the entire surface as the drum rotates. The measurement module also allows the printed media to cool to eliminate problems with color measurements due to thermo chromaticity.
摘要:
A measurement module for a printer generally includes a page diverter mechanism configured to selectively divert a sheet of media from a main media path to a module media path; a rotating drum configured to receive the media from the module media path and to affix the media on an outer surface of the drum; a measuring device spaced adjacent to the drum and configured to measure as aspect of the media affixed to the surface of the drum; and a sheet transport configured to remove the media from the drum. According to one embodiment, the module may include a drum with an electrostatic hold-down mechanism that captures a sheet and an axially translating measuring device that is configured to read the entire surface as the drum rotates. The measurement module also allows the printed media to cool to eliminate problems with color measurements due to thermo chromaticity.
摘要:
Disclosed herein is reference component for a sensor. The reference component comprises a calibration surface and an integrated circuit. The integrated circuit often contains a digital representation of calibration surface properties. A corresponding sensing system, printing system, method of communicating calibration data, and sensor calibration method also are disclosed.
摘要:
A method for estimating color measurements of color samples includes printing a color sample based on input data, measuring a color of the printed color sample with an in-line spectral sensor at a first temperature, and estimating a color of the printed color sample which would be output by a reference spectral sensor at a second temperature. The estimation is based on a thermochromatic model which represents relationships between measured colors of printed color samples on the in-line spectral sensor at the first temperature and the reference spectral sensor at the second temperature. The reference spectral sensor is a different type of sensor from the in-line spectral sensor, so the color response of the two spectral sensors is different, even when the measurement conditions are identical. Consequently, a set of printed spot color samples generate different measured colors at the second temperature on the in-line spectral sensor from the reference spectral sensor. The exemplary method allows these differences, as well as measurement temperature differences to be accounted for in the estimation.
摘要:
A leveling and spreading system has been developed that enables the speed and position of the web to be determined from a sensor on a first roller. In a duplex print process, the first roller also reduces a temperature of the media web and an ink image printed in the first side print operation to within a first predetermined temperature range. A second roller modulates the temperature of the media web and ink ejected onto the media web immediately before the web enters the leveling and spreading system to within a second predetermined temperature range to enable uniformity of the ink and web temperatures for spreading the ink in a nip formed with a third roller.