摘要:
A focusing assembly includes features that allow numerical aperture to be reduced and optimized by reducing aberrations and ghost reflections and easily controlling stop size, thereby increasing depth-of-focus. The assembly includes a single, bi-aspheric focusing lens that optimizes image quality at a specific off-axis field point. Passage of excessively divergent radiation is prevented by a baffle having a sharp, flared edge that minimizes reflection. A second aperture or baffle can be included to restrict high-divergence radiation emerging from the bi-aspheric focusing lens. All interior surfaces of the focusing assembly are preferably blackened, once again to minimize internal reflections.
摘要:
An electrothermal recorder comprising a thermosensitive recording surface which moves at a preselected, controlled, rate along a time axis, an electrothermal print head having an array of separately activated electrothermal printing elements engaging said thermosensitive recording surface along a recording axis generally perpendicular to said time axis and a controller which generates command signals to said printhead for selectively activating the electrothermal elements of said printhead, in accordance with an input responsive to the magnitude of a preselected parameter, such that the location of activated ones of said electrothermal elements, along the recording axis, corresponds to said input.
摘要:
A hybrid imaging system is capable of using both ink jet technology and thermal dye transfer technology for producing images on a dye-receiving element of the type having a support and a polymeric dye image-receiving layer that contains an organic acid capable of reprotonating the deprotonated cationic dye from both ink jet ink and dye-donor ribbon. The imaging system includes a print path adapted to accept such a dye-receiving element, and a dye-receiving element transport mechanism adapted to advance a dye-receiving element along the print path. An ink jet imaging assemblage is located along the print path for selectively producing images on the dye-receiving element using ink jet inks having a dye dispersed in an aqueous ink, the dye being a deprotonated cationic dye which is capable of being reprotonated to a cationic dye having an N-H group which is part of a conjugated system. A thermal dye transfer imaging assemblage is located along the print path for selectively producing images on the dye-receiving element using thermal dye transfer technology and a dye-donor element.
摘要:
A cooling article includes a plate positioned adjacent the exit of a thermal processor. The plate has a surface for receiving a sheet of thermally-processed material such that the sheet of thermally-processed material moves along the surface. A first region of the surface of the plate adjacent the exit of the thermal processor includes a thermally insulative material, whereas a second region of the surface of the plate on a side of the first region opposite the exit of the thermal processor includes a thermally conductive material. The sheet of thermally-processed material contacts the thermally insulative material during movement in the first region, and contacts the thermally conductive material during movement in the second region. The thermally insulative material prevents excessive heating of the first region of the cooling plate by leading portions of the sheet of thermally-processed material. The thermally insulative material thereby reduces defects in the trailing portion of the sheet of thermally-processed material due to uneven cooling. The reduction of defects contributes to improved quality in the images produced on sheets of thermally-processed material.
摘要:
A recording unit structure comprising a recording material layer faced to a recording body with a space incorporated therebetween, so that said recording material is vaporized and transferred to said recording body through said space, provided that pores are provided to a vaporizing portion of the recording material in such a manner that the pores be present within the layer of the recording material. The recording unit structure of the present invention assures a recording of excellent quality, is made compact and light weight, yields a high thermal efficiency, and produces no used ink sheets and other wastes. The present invention also relates to a recording device comprising the same.
摘要:
An image is permanently transferred to a substrate having a cotton component, or other component which is absorbent or porous, from a medium printed with the image by a thermal printer using heat activated ink. A polymer surface preparation material and the ink are transferred by the thermal printer to the medium from a ribbon containing the ink and the surface preparation material, without activating the ink or the surface preparation material. The image is transferred from the medium to the substrate by applying sufficient heat and pressure to the medium to activate and transfer the ink and the surface preparation material, with the surface preparation material bonding the ink to the substrate.
摘要:
The present invention provides a tape printing device for printing a desirable series of characters on a tape and cutting the tape to a label of a desirable length, and also a tape cartridge used in the tape printing device. The tape cartridge has a characteristic element readably storing specific information on the tape such as a width of the tape. The tape printing device reads the characteristic element to control printing conditions according to the type of the tape cartridge. More specifically, the tape printing device determines a variety of parameters including a number of lines and character sizes of the character series printed on the tape as well as lengths of left and right margins. When a tape of a relatively large width is set in the tape cartridge, the device increases a rotation torque of a platen for feeding the tape. When a tape of a relatively small width is set in the tape cartridge, on the contrary, the device drives only specific dot elements in a range of the tape width out of all dot elements arranged on a printing head. The characteristic element of the tape cartridge stores the specific information expressed as depths of a plurality of holes or electric data. This specific information may be updated to identify a user or detect a residual amount of the tape.
摘要:
An image is printed on a medium by means of an electrographic device using an ink composition comprising heat activated inks, without substantial activation of the inks during the process of printing the image onto the medium. A molecular sieve added to the ink composition assists activation control. The image is transferred from the medium to the object on which the image is to permanently appear by applying sufficient heat and pressure to the medium to activate and permanently transfer the inks from the medium to an object.
摘要:
A printing apparatus for printing designs, halftones, alphanumeric and other printed matter on sheet material utilizes a thermal printhead that is pressed against sheet material on a roller platen during a printing operation. A donor web bearing an ink material is interposed between the printhead and the sheet material on the roller platen. In order to improve the print quality, the printer includes a pressure regulating mechanism which not only controls the pressure between the printing head and roller platen at different pressure levels but also allows the printing head and platen to be separated and moved away from one another.
摘要:
A cleaning card has a flat, semirigid base with a first and second material mechanically bonded to the side surfaces thereof. The first material is an abrasive substantially impenetrable material and the second material is a soft spunlaced fabric of high absorptive capacity. The differences in physical qualities of the first and second materials allow for one card to be used both as frequent cleaning card as well as a corrective cleaning card and provides a cleaning card that enables operation of the machine quickly after cleaning thereof.