摘要:
A thin wall ink image receiving member enables the ink image receiving member to reach operational temperatures from a cold state more quickly than image receiving members used in previously known printers. The thin wall image receiving member includes at least one annular support member fixedly mounted against the inner surface of the cylindrical wall to enable the image receiving member to provide adequate pressure in a nip formed with a transfix roller to transfer an ink image from the image receiving member to media in the nip.
摘要:
A method for operating an image receiving member in a phase change ink printer has been developed. The method includes selectively rotating the image receiving member past an activated heater to heat a first portion of the image receiving member to a first predetermined temperature that is greater than a second temperature to which a remaining portion of the image receiving member is heated by the heater.
摘要:
A printing device is configured to adjust the angle of a metering blade within a predetermined range of angles to compensate for wear in the blade over time or for other causes of inconsistency. The angle of the metering blade is selected by a controller which operates an actuator to move a moveable member to adjust the angle of the metering blade and regulate the thickness of a release agent layer on a moving imaging member.
摘要:
A printing apparatus having a) a printing station including at least one printhead for applying phase-change ink to a print substrate in a phase-change ink image, and b) an ink spreading station including an ink spreading member and a back-up pressure member in pressure contact with the ink spreading member forming a nip between the ink spreading member and pressure member for spreading the phase-change ink image on the print substrate, wherein the print substrate is passed through the nip, and wherein the pressure member includes i) a pressure member substrate, and ii) an outer coating with a urethane and conductive salt.
摘要:
A release agent applicator applies release agent to an imaging drum and absorbs release agent metered from the drum to extend the operational life of an image drum maintenance unit. The applicator includes a reservoir for storing release agent, the reservoir having a plurality of perforations for enabling release agent to seep from the reservoir, a containment membrane for wicking release agent from the perforations of the reservoir, and a delivery layer for delivering release agent from the containment membrane to an imaging drum, the delivery layer having pores in a range of about 50 μm to about 200 μm.
摘要:
An offset printing apparatus for transferring and optionally fixing a phase change ink onto a print medium including a) a phase change ink application component for applying a phase change ink in a phase change ink image to an imaging member; b) an imaging member for accepting, transferring and optionally fixing the phase change ink image to the print medium, the imaging member having: i) an imaging substrate, and thereover ii) an outer coating comprising a polymer matrix with an oleophobic resin, a fluoropolymer lubricant, and a first additive; and c) a release agent management system for supplying a release agent to the imaging member, wherein an amount of release agent needed for transfer and optionally fixing the phase change ink image is reduced.
摘要:
A printer has a print head arranged to jet molten ink onto a surface, a transfix surface arranged to provide the surface for the print head, the transfix surface having a core and an outer shell of a predetermined grade of aluminum arranged on the core, the outer shell forming the surface for the print head. The printer also has a transport subsystem to transport a print substrate past the transfix surface such that the molten ink transfers from the transfix surface to the print substrate.
摘要:
Disclosed herein are curable solid inks which are solid at room temperature and molten at an elevated temperature at which the molten ink is applied to a substrate. In particular, the curable solid inks of the present embodiments comprise low molecular weight amide gellants that impart self-leveling capabilities to the inks. Also disclosed herein are methods for making the amide gellant and the inks comprising the amide gellants.
摘要:
A method for operating an image receiving member in a phase change ink printer has been developed. The method includes selectively rotating the image receiving member past an activated heater to heat a first portion of the image receiving member to a first predetermined temperature that is greater than a second temperature to which a remaining portion of the image receiving member is heated by the heater.
摘要:
A scratch-off document may include a substrate bearing a toner image and a scratch-off layer covering the printed content. The scratch-off layer may include a mass of a first solid ink and a mass of a second solid ink printed over the first solid ink in a distraction pattern. The toner image is formed of a toner that adheres to the substrate, while the scratch-off layer is made of a wax-based or other solid ink that may be removed from the substrate by scratching without removing the toner image. The distraction pattern includes varying pile heights that distract a viewer from any pile height variations that may exist in the toner image.