High air flow low pressure prefuser transport
    1.
    发明授权
    High air flow low pressure prefuser transport 失效
    高气流低压预先输送

    公开(公告)号:US5467180A

    公开(公告)日:1995-11-14

    申请号:US327721

    申请日:1994-10-20

    CPC分类号: G03G15/657 B65H29/242

    摘要: An apparatus for advancing a sheet from a moving imaging member having an unfused image after transfer of the image to the sheet. After the image is transferred to the sheet, the sheet is advanced by a transport to a fuser. The transport has low impedance, high air flow to draw the sheet toward the transport for acquisition. As the sheet is moved across the transport, an increased air flow impedance causes a low vacuum pressure in the transport to provide a low drive force that minimizes quality and motion disturbances on the sheet. The low drive force exerted on the sleet is lower than a holding force of the sheet to the moving imaging member thus causing the sheet to slide on the transport.

    摘要翻译: 一种用于在将图像转印到纸张之后,从具有未图像的运动成像构件推进纸张的装置。 图像传输到纸张后,纸张将通过传送器前进到定影器。 运输具有低阻抗,高空气流将纸张朝向运输进行采集。 当纸张移动穿过传送器时,增加的空气流阻抗导致传送器中的低真空压力提供低的驱动力,从而最小化纸张上的质量和运动干扰。 施加在雨夹雪板上的低驱动力低于片材对移动成像构件的保持力,从而导致片材在运输装置上滑动。

    Bidirectional hot melt ink jet printing
    2.
    发明授权
    Bidirectional hot melt ink jet printing 失效
    双向热熔喷墨打印

    公开(公告)号:US5075689A

    公开(公告)日:1991-12-24

    申请号:US441365

    申请日:1989-12-15

    摘要: In the representative embodiments of the invention described in the specification, an ink jet head has a series of aligned arrays of ink jet orifices arranged to project drops of different colored inks in sequence to the same location on a substrate during each scan of the ink jet head adjacent to the substrate. The spacing of the orifices in each aligned array and the speed of the ink jet head during the scanning are arranged so that all the ink drops applied at the same location on the substrate are applied in a time period of no more than about 100 milliseconds and preferably no more than 50 milliseconds. Moreover, to avoid banding the lines produced by successive scans of the head are interlaced so as to produce a periodic frequency of no more than about four lines per millimeter.

    摘要翻译: 在说明书中描述的本发明的代表性实施例中,喷墨头具有一系列对准的喷墨孔阵列,其布置成在喷墨的每次扫描期间将不同颜色的墨水的液滴顺序投影到基板上的相同位置 头部邻近衬底。 每个排列的阵列中的孔口的间距和喷墨头在扫描期间的速度被布置成使得施加在基板上相同位置的所有墨滴在不超过约100毫秒的时间内被施加, 优选不超过50毫秒。 此外,为了避免捆扎,头部的连续扫描产生的线交错,以便产生不超过约四行/毫米的周期频率。

    Post-processing of colored hot melt ink images
    4.
    发明授权
    Post-processing of colored hot melt ink images 失效
    彩色热熔油墨图像后处理

    公开(公告)号:US5337079A

    公开(公告)日:1994-08-09

    申请号:US532206

    申请日:1990-06-01

    摘要: In the particular embodiments of the invention described in the specification, the surface of a hot melt ink image in a projection transparency having curved surface portions is reoriented to provide an ink layer of substantially uniform thickness causing rectilinear transmission of light rays passing through the transparency and provide a clear, saturated projection image. Reorienting of the curved surface portion to provide a layer of uniform thickness is accomplished by burnishing, pressing with or without heating, rolling with or without heating, or heating the ink to a temperature above its melting point for a selected time such as 0.5 to 10 seconds. Preferably, the ink is cooled rapidly after remelting to reduce crystallization and frosting and thereby reduce light transmission losses in the ink.

    摘要翻译: 在本说明书中描述的本发明的特定实施例中,具有弯曲表面部分的具有突出透明度的热熔体墨图像的表面被重新定向以提供基本均匀厚度的油墨层,从而引起穿过透明体的光线的直线透射, 提供清晰,饱和的投影图像。 弯曲表面部分的重新定向以提供均匀厚度的层是通过在加热或不加热的情况下进行抛光,压制,加热或不加热来进行的,或者将油墨加热到高于其熔点的温度选择的时间,例如0.5至10 秒。 优选地,在重熔之后,油墨被快速冷却,以减少结晶和结霜,从而降低油墨中的光透射损失。

    Platen arrangement for hot melt ink jet apparatus
    7.
    发明授权
    Platen arrangement for hot melt ink jet apparatus 失效
    热熔喷墨装置的压板装置

    公开(公告)号:US4751528A

    公开(公告)日:1988-06-14

    申请号:US94664

    申请日:1987-09-09

    摘要: In the particular embodiment described in the specification, a hot melt ink jet system includes a temperature-controlled platen provided with a heater and a thermoelectric cooler electrically connected to a heat pump and a temperature control unit for controlling the operation of the heater and the heat pump to maintain the platen temperature at a desired level. The apparatus also includes a second thermoelectric cooler to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An airtight enclosure surrounding the platen is connected to a vacuum pump and has slits adjacent to the platen to hold the substrate in thermal contact with the platen.

    摘要翻译: 在说明书中描述的特定实施例中,热熔喷墨系统包括设置有加热器的温度控制的压板和与热泵电连接的热电冷却器和用于控制加热器和热量的操作的温度控制单元 泵将压板温度保持在所需的水平。 该装置还包括一个第二热电冷却器,用于在选择的区域中更快速地固化热熔油墨,以避免与已经施加热熔油墨的基板表面接触的夹送辊的偏移。 围绕压板的气密封壳连接到真空泵,并且具有与压板相邻的狭缝,以保持基板与压板热接触。

    Remelting of printed hot melt ink images
    8.
    发明授权
    Remelting of printed hot melt ink images 失效
    重印印刷热熔墨水图像

    公开(公告)号:US4971408A

    公开(公告)日:1990-11-20

    申请号:US272005

    申请日:1988-11-15

    IPC分类号: B41J2/01 B41J2/325 G01D15/16

    CPC分类号: G01D15/16

    摘要: In the particular embodiment of the invention described in the specification, a hot melt ink print is prepared by applying the ink to a porous substrate, permitting it to solidify, and reheating the substrate and the ink to a temperature 5.degree. C. to 30.degree. C. above the melting point of the ink for 0.5 to 10 seconds. In one embodiment, the porous substrate is supported on a platen which is maintained at least 30.degree. C. below the melting point of the ink to prevent drying of the substrate and to inhibit spreading of the ink into the substrate. The subsequent reheating of the ink in a controlled manner causes the ink to penetrate to a desired extent into the substrate while preventing shrinkage or cockling of the substrate.

    摘要翻译: 在本说明书中描述的本发明的特定实施例中,通过将油墨施加到多孔基材上,使其固化并将基材和油墨再加热至5℃至30℃的温度来制备热熔油墨印刷品 C.高于油墨熔点0.5〜10秒。 在一个实施方案中,多孔基材被支撑在压板上,该压板在油墨的熔点以下至少保持30℃,以防止基材干燥并阻止油墨扩散到基材中。 以受控方式随后的油墨再加热会导致油墨在所需的程度上渗透到基材中,同时防止基材的收缩或起皱。

    Ink jet array
    9.
    发明授权
    Ink jet array 失效
    喷墨阵列

    公开(公告)号:US4835554A

    公开(公告)日:1989-05-30

    申请号:US94665

    申请日:1987-09-09

    摘要: In the representative embodiments of an ink jet array described in the specification, a linear array of ink jet orifices is supplied with ink from pressure chambers alternately disposed on opposite sides of the array to permit close spacing of the ink jet orifices. At the end opposite from the ink jet orifice, each pressure chamber communicates with a low acoustic impedance chamber to reflect negative pressure pulses from the pressure chamber back through the chamber as positive pulses and to prevent pressure pulses from being transmitted to the ink supply. In addition, a high-impedance passage between the low acoustic impedance chamber associated with one pressure chamber and the pressure chamber for the adjacent ink jet provides a continuous flowthrough passage from the ink supply port for one ink jet to the ink supply port for an adjacent ink jet. This permits continuous circulation by thermal convection of the ink when the ink jets are not in use to prevent settling of pigment in a pigmented ink and to transport ink containing dissolved air from the region of the ink jet orifice to a deaeration passage.

    摘要翻译: 在说明书中描述的喷墨阵列的代表性实施例中,喷墨孔的线性阵列由交替设置在阵列的相对侧上的压力室供应墨,以允许喷墨孔的间隔很近。 在与喷墨孔相对的端部处,每个压力室与低声阻抗室连通,以将来自压力室的负压脉冲反射回通过室作为正脉冲,并且防止压力脉冲传输到墨水供应。 另外,与一个压力室相关联的低声阻抗室与用于相邻喷墨的压力室之间的高阻抗通道提供从用于一个喷墨的供墨口到供墨口的连续的通过通道,用于相邻的 喷墨。 当墨水喷射不用于防止着色油墨中的颜料沉降并且将含有溶解空气的油墨从喷墨孔的区域输送到脱气通道时,可以通过油墨的热对流来连续循环。