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    • 3. 发明授权
    • Apparatuses useful in printing and methods of fixing marking materials on media
    • 用于印刷的设备和将标记材料固定在介质上的方法
    • US08396406B2
    • 2013-03-12
    • US12631381
    • 2009-12-04
    • John F. KnappShu Chang
    • John F. KnappShu Chang
    • G03G15/20
    • G03G15/2064G03G2215/2006G03G2215/209
    • Apparatuses useful in printing and methods of fixing marking materials on media in apparatuses useful in printing are provided. An exemplary embodiment of the apparatuses useful in printing includes a first fixing device disposed along a first media path. The first fixing device includes a first fixing member including a first surface and a second fixing member including a second surface which forms a first nip with the first surface. The first fixing device does not include a thermal energy source that actively heats the first surface or the second surface and the first fixing device is adapted to apply pressure to a medium received at the first nip. A second fixing device is disposed along a second media path. The second fixing device includes at least one thermal energy source adapted to supply thermal energy to actively heat the medium at the second fixing device. A controller is configured to selectively route the medium to the first fixing device or to the second fixing device.
    • 提供了可用于印刷的装置以及将标记材料固定在介质上用于印刷的装置中的方法。 用于打印的装置的示例性实施例包括沿着第一媒体路径设置的第一固定装置。 第一固定装置包括第一固定构件,其包括第一表面和第二固定构件,第二固定构件包括与第一表面形成第一压合部的第二表面。 第一定影装置不包括主动加热第一表面或第二表面的热能源,并且第一固定装置适于对在第一压区接收的介质施加压力。 第二固定装置沿着第二介质路径设置。 第二固定装置包括至少一个适于提供热能以在第二固定装置处主动加热介质的热能源。 控制器被配置为选择性地将介质路由到第一固定装置或第二固定装置。
    • 4. 发明申请
    • APPARATUSES USEFUL IN PRINTING AND METHODS OF FIXING MARKING MATERIALS ON MEDIA
    • 装置用于印刷和固定标签材料的方法
    • US20110135349A1
    • 2011-06-09
    • US12631381
    • 2009-12-04
    • John F. KNAPPShu CHANG
    • John F. KNAPPShu CHANG
    • G03G15/20
    • G03G15/2064G03G2215/2006G03G2215/209
    • Apparatuses useful in printing and methods of fixing marking materials on media in apparatuses useful in printing are provided. An exemplary embodiment of the apparatuses useful in printing includes a first fixing device disposed along a first media path. The first fixing device includes a first fixing member including a first surface and a second fixing member including a second surface which forms a first nip with the first surface. The first fixing device does not include a thermal energy source that actively heats the first surface or the second surface and the first fixing device is adapted to apply pressure to a medium received at the first nip. A second fixing device is disposed along a second media path. The second fixing device includes at least one thermal energy source adapted to supply thermal energy to actively heat the medium at the second fixing device. A controller is configured to selectively route the medium to the first fixing device or to the second fixing device.
    • 提供了可用于印刷的装置以及将标记材料固定在介质上用于印刷的装置中的方法。 用于打印的装置的示例性实施例包括沿着第一媒体路径设置的第一固定装置。 第一固定装置包括第一固定构件,其包括第一表面和第二固定构件,第二固定构件包括与第一表面形成第一压合部的第二表面。 第一定影装置不包括主动加热第一表面或第二表面的热能源,并且第一固定装置适于对在第一压区接收的介质施加压力。 第二固定装置沿着第二介质路径设置。 第二固定装置包括至少一个适于提供热能以在第二固定装置处主动加热介质的热能源。 控制器被配置为选择性地将介质路由到第一固定装置或第二固定装置。
    • 5. 发明授权
    • Electrical biasing scheme for preventing overplating in an
image-on-image electrostatographic printing system
    • 用于防止图像上静电印刷系统中的过度电镀的电偏置方案
    • US5848337A
    • 1998-12-08
    • US829659
    • 1997-03-31
    • Chu-heng LiuDavid H. PanJohn F. KnappGeorge A. GibsonRobert M. Simms
    • Chu-heng LiuDavid H. PanJohn F. KnappGeorge A. GibsonRobert M. Simms
    • G03G15/00G03G15/01
    • B82Y15/00G03G15/0121
    • A method and apparatus for eliminating undesirable development of background charge potentials in a multicolor electrostatographic system is disclosed, wherein the application of a developer bias at a given development station is selectively controlled to be substantially equal to or greater than the background image voltage of the image generated by a preceding imaging station such that the voltage differential between toner particles at the development station and the background areas including the previous image areas is substantially zero and the electrostatic forces acting on the toner particles are insufficient to attract the toner particles to the residual image. A method and apparatus is disclosed for eliminating redevelopment of previous images in a multicolor electrostatographic system, and, more particularly, an image-on-image multicolor system, wherein the imaging and development biases for each color in the printing process is systematically adjusted so as to eliminate charge potential differentials which can operate to attract toner particles to the receiving member in a subsequent image development procedure.
    • 公开了一种用于消除多色静电照相系统中的背景电荷电位的不期望的发展的方法和装置,其中在给定的显影台上施加显影剂偏压被选择性地控制为基本上等于或大于图像的背景图像电压 由先前的成像站产生,使得显影台上的调色剂颗粒与包括先前图像区域的背景区域之间的电压差基本上为零,并且作用在调色剂颗粒上的静电力不足以将调色剂颗粒吸引到残留图像 。 公开了一种用于消除多色静电照相系统中先前图像的重新开发的方法和装置,更具体地,涉及一种图像上多色系统,其中在打印过程中针对每种颜色的成像和显影偏差被系统地调整为 以消除在随后的图像显影程序中可以操作以将调色剂颗粒吸引到接收构件的电荷电位差。
    • 7. 发明授权
    • Hybrid color printing machine
    • 混合彩色印刷机
    • US5121171A
    • 1992-06-09
    • US638966
    • 1991-01-09
    • John F. Knapp
    • John F. Knapp
    • G03G15/01H04N1/50
    • H04N1/508G03G15/0184G03G2215/0106
    • A printing machine having a pair of photoconductive drums with a transfer roller interposed therebetween produces a full color document in two operating cycles. During the first operating cycle, a first color developed image is transferred from the first photoconductive drum to a sheet moving with the transfer roller. A second color developed image is transferred from the second photoconductive drum to the sheet in superimposed registration with the first developed image transferred thereto. During the second operating cycle, the foregoing process is repeated for a third color developed image and a fourth color developed image. In this way, a full color composite toner image is formed on the sheet.
    • 具有一对具有转印辊的感光鼓的印刷机在两个操作循环中产生全色文档。 在第一操作周期期间,将第一显色图像从第一感光鼓转印到用转印辊移动的片材上。 第二显色图像从第二感光鼓转印到与转印到其上的第一显影图像重叠对准的纸张。 在第二操作周期期间,对于第三显色图像和第四显色图像重复上述处理。 以这种方式,在片材上形成全色复合调色剂图像。
    • 8. 发明授权
    • Development system
    • 开发体系
    • US5077578A
    • 1991-12-31
    • US692431
    • 1991-04-29
    • Steven J. GrammaticaJohn F. Knapp
    • Steven J. GrammaticaJohn F. Knapp
    • G03G15/01G03G15/06G03G15/08G03G21/10
    • G03G15/0812G03G2215/0614G03G2215/0636
    • An apparatus which develops an electrostatic latent image recorded on a photoconductive member with toner. The toner in the chamber of the developer housing is fluidized and transported thereacross by an elongated member. A donor roller advances the toner particles to a latent image recorded on a photoconductive member. A rotating rod resiliently urged into contact with the donor roller charges the toner on the donor roller. In order to attract toner particles to the donor roller, the elongated member and the charging rod are electrically biased by voltages having the same polarity. The elongated member and the charging rod are electrically biased by voltages of opposite polarity to denude the donor roller of toner particles.
    • 利用调色剂显影记录在感光体上的静电潜像的装置。 显影剂壳体的腔室中的调色剂被流动并通过细长构件在其上传送。 供体辊将调色剂颗粒推进到记录在感光体上的潜像。 弹性地推动与供体辊接触的旋转杆对施主辊上的调色剂充电。 为了将调色剂颗粒吸引到供体辊,细长构件和充电杆由具有相同极性的电压电偏置。 细长构件和充电杆由相反极性的电压进行电偏压,以使调色剂颗粒的供体辊变形。