摘要:
A method for registration of print separations in a printer comprising: (a) printing a first pattern, for which at least one image characteristic varies relatively weakly with misregistration, using at least one of first and second separations; (b) printing a second pattern, for which said at least one image characteristic varies relatively strongly with misregistration, using said at least one first and second separations; (c) determining said at least one image characteristic for the first and second patterns; and (d) correcting the mutual registration of said at least one first and second separations responsive to a difference in the determined at least one image characteristic for the first and second patterns.
摘要:
Apparatus, printers, and charge roller assemblies are disclosed. An example apparatus includes a roller to charge a printer surface when closer to the printer surface than an upper threshold, and a damper to reduce movement of the roller and to keep the roller closer to the printer surface than the upper threshold.
摘要:
A method for writing to an electronic imaging substrate includes passing an electronic imaging substrate in relation to a writing device to change a state of image cells within the electronic imaging substrate. The imaging substrate is placed close enough to the writing device to reduce a blooming effect to a predefined threshold level when changing a state of one of the image cells within the electronic imaging substrate.
摘要:
Apparatus, articles of manufacture, and image forming apparatus for capturing aerosols are disclosed. An example apparatus includes a corona wire, and an excitation source to provide to the corona wire a composite signal having a direct current component and an alternating current component, the alternating current component having a cycle, a first portion of the cycle being sufficient to cause the composite signal to exceed an inception voltage at which ions are generated by the corona wire and a second portion to cause the composite signal to fall beneath the inception voltage, the excitation source to avoid causing the corona wire to substantially charge a substrate.
摘要:
Inkjet imaging methods, imaging methods and hard imaging devices are described. According to one embodiment, an imaging method includes accessing image data of an image to be formed; using the image data, controlling a print device to eject a plurality of droplets of a liquid marking agent corresponding to the image to be formed, wherein the droplets of the liquid marking agent individually comprise a plurality of ink particles; using the print device, ejecting the droplets of the liquid marking agent; after the ejecting, receiving the droplets of the liquid marking agent upon a transfer member; and after the receiving, transferring the ink particles of the droplets from the transfer member to media to form a hard version of the image using the media.
摘要:
Substrate treatment apparatus, printers, and methods to treat a print substrate are disclosed. An example apparatus includes a first roller to receive a treatment fluid from a reservoir, a blade to adjust an amount of the treatment fluid present on the first roller, and a second roller to receive an adjusted amount of the treatment fluid from the first roller and to apply the treatment fluid to a substrate, the treatment fluid applied to the substrate to result in a layer of treatment fluid less than about 0.4 micrometers thick on the substrate.
摘要:
Printers and apparatus to reduce emissions from a print substrate exit port are disclosed. An example apparatus to reduce emissions from a print substrate exit port includes a first member coupled to a hinge adjacent a printer substrate exit port, the first member to substantially cover a travel path of a print substrate in a first position and to pivot from the exit travel path of the print substrate in response to air pressure associated with the print substrate when the print substrate travels through the print substrate exit port.
摘要:
Imaging methods, imaging member charging methods, and image engines are described. According to one embodiment, an imaging method includes providing an imaging member having an outer surface comprising a plurality of portions having a plurality of different radii, rotating the portions of the outer surface of the imaging member adjacent to a charge device configured to provide an electrical charge to the imaging member which is usable for imaging, first controlling a position of the charge device with respect to one of the portions of the outer surface of the imaging member using the one of the portions of the outer surface at one moment in time, second controlling a position of the charge device with respect to an other of the portions of the outer surface of the imaging member using a positioning control system at an other moment in time, and using the charge device, providing the electrical charge to the one of the portions of the imaging member at the one moment in time.
摘要:
Methods for measuring optical density are described. The color on an area is determined. Based on the color, at least a first illumination source is selected. The area is illuminated with the selected illumination source. Radiation is received from the area, and the received radiation is converted to a signal indicative of optical density.
摘要:
Imaging methods, imaging devices, transfer assemblies, and transfer member lubrication assemblies are described according to some aspects. According to one aspect, an imaging method includes forming a latent image using a first imaging member, using a marking agent, developing the latent image providing a developed image, after the developing, first transferring the marking agent of the developed image to an imaging transfer member, after the first transferring, second transferring the marking agent of the developed image from the imaging transfer member, and lubricating the imaging transfer member during the first and the second transferrings.