摘要:
A system comprises an electro-wetting subsystem, a transfer subsystem, an imaging member, and an inking subsystem. The electro-wetting subsystem comprises a photo-responsive photoreceptor, a charging mechanism, an image definition material reservoir, a charge erase mechanism, and an exposure subsystem, such as a light source and rotating polygon forming a raster output scanner (ROS) disposed for exposure of the photoreceptor through the image definition material reservoir. The imaging member comprises a reimageable surface having certain properties, such as having a low surface energy to promote ink release onto a substrate. In operation, the photoreceptor is charged areawise. An exposure pattern is formed by the exposure subsystem on the surface of the charged photoreceptor, which is developed with image definition material. The image definition material pattern is transferred to the reimageable surface. The pattern is developed with ink. The inked image may be transferred to a substrate.
摘要:
Methods of leveling ink on substrates and apparatuses useful in printing are provided. An exemplary embodiment of the methods includes irradiating ink disposed on a surface of a porous substrate with radiation emitted by at least one radiant energy source. The radiation heats the ink to at least a viscosity threshold temperature of the ink to allow the ink to flow laterally on the surface to produce leveling of the ink. The ink is heated sufficiently rapidly that heat transfer from the ink to the substrate is sufficiently small during the leveling that ink at the substrate interface is cooled to a temperature below the viscosity threshold temperature thereby preventing any significant ink permeation into the substrate.
摘要:
In a variable data lithography system that employs a patterned dampening fluid layer for image formation, dampening fluid may be removed prior to image transfer to a substrate. Removed dampening fluid may be recovered and recycled to reduce operating expenses and environmental waste. A replacement fluid may be applied after inking and after removal of the dampening fluid. The replacement fluid preferentially occupies the regions previously occupied by dampening fluid, and may lubricate the transfer nip. Any replacement fluid and ink not transferred to the substrate upon printing may then be cleaned from the print image carrier prior to forming a new dampening fluid layer and subsequent pattern formation.
摘要:
Reflective systems include a reflective element secured to an optical element. The reflective element is a switchable reflective layer that is switched by an alignment mechanism electrically coupled to a controller that sends data instructing the alignment mechanism that various light conditions exist.
摘要:
A xerographic micro-assembler system, method and apparatus that includes a sorting unit that is adapted to receive a plurality of micro-objects. The micro-objects can also be sorted and oriented on the sorting unit and then transferred to a substrate. The system, method and apparatus can also include a device for detecting errors in at least one of the micro-objects on the sorting unit and a protection means for preventing an improper micro-object from being transferred to the substrate. The system, method and apparatus can also include an organized micro-object feeder assembly that can transfer at least one of a plurality of micro-objects to the sorting unit or directly to the substrate.
摘要:
A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.
摘要:
A fabricated structure for use with an associated marking device is provided. In one form, the fabricated structure includes a self-lifting spring finger having a nib for marking.
摘要:
A non-atmospheric pressure vapor oven system that utilizes a controllable pressure zone to facilitate fast phase change heat transfer at any desired temperature to heat or cool flat substrates, and to level temperatures across different locations of the substrates. The system enables the use of a heat transfer fluid, such as water, without being limited to a particular temperature, such as the fluid's natural boiling point at atmospheric pressure. The system includes a vapor oven (hermetic enclosure) defining a pressure chamber having sealed entry and exit ports for transferring an object (e.g., a sheet of paper) with added material (e.g., toner) through the pressure chamber, and a pressure regulation apparatus for setting the saturation temperature (boiling point) of heat transfer fluid inside the vapor oven to an optimal heating/cooling temperature by selectively controlling the pressure inside the hermetic enclosure.
摘要:
Methods and apparatus for performing addressable fusing and/or heating of a substrate undergoing xerographic processing are disclosed. The apparatus includes a fuser having an array of addressable heating elements in radiative communication with a substrate through a fuser roll or fuser belt. The array of addressable heating elements is operated to selectively heat portions of the substrate to achieve a desired effect on the substrate, such as changing its surface finish, or fusing unfused toner to the substrate. In the case of toner fusing, the array is operated such that substantially only an area covered by the unfused toner is heated. This eliminates the need for blanket fusing, and generally provides for greater flexibility in xerographically processing substrates. Apparatus and methods for performing two-sided selective fusing and/or heating are also disclosed.
摘要:
This invention provides methods and apparatus for focusing a hypersonic beam to control both a direction and depth of audible information delivery. Signals that are delivered to each of a plurality of hypersonic transducer elements are adjusted in phase so that transmitted hypersonic signals are focused at a focal point anywhere in space. The focal point of a focused hypersonic beam may be used to scan a space of interest when used in a receive mode in a pinging process. When objects are detected, a focused hypersonic beam may be used to deliver audible information substantially only to a neighborhood of the detected object.