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    Magnetic recording heat which accurately defines the width of the recording track
    1.
    发明授权
    Magnetic recording heat which accurately defines the width of the recording track 失效
    磁记录热量精确定义记录轨迹的宽度

    公开(公告)号：US3668332A

    公开(公告)日：1972-06-06

    申请号：US3668332D

    申请日：1970-08-26

    Applicant: XEROX CORP

    Inventor： ANDERSON HAROLD M

    IPC: G11B5/265 ,  G11B5/26

    CPC classification number: G11B5/265

    Abstract: A magnetic recording head having a read-write gap and an erase gap adjacent a common core. The read-write gap is of a predetermined width equal to or less than the width of the common core. Within the common core, in the surface adjacent the erase gap, there is a notch of predetermined width less than the predetermined width of the read-write gap. The notch is of sufficient depth to minimize the erase function of that portion of the erase gap opposite thereto. In operation, the initial width of the magnetically recorded information, as determined by the width of the read-write gap, is cropped to the predetermined width of the notch during erasure. Accurately defined tracks of extremely narrow width may be attained with this recording head thereby permitting an increase in the number of tracks recorded per unit with of the magnetic storage medium.

    Abstract translation: 具有与公共芯相邻的读写间隙和擦除间隙的磁记录头。 读写间隙具有等于或小于公共芯的宽度的预定宽度。 在公共芯内，在与擦除间隙相邻的表面中，存在小于读写间隙的预定宽度的预定宽度的凹口。 凹口具有足够的深度以最小化与其相反的擦除间隙的那部分的擦除功能。 在操作中，由读写间隙的宽度确定的磁记录信息的初始宽度在擦除期间被裁剪到凹口的预定宽度。 通过该记录头可以获得精确定义的极窄宽度的轨道，从而允许增加每个磁盘存储介质每单位记录的轨道数量。

    2.
    发明专利
    未知

    公开(公告)号：DE69017827D1

    公开(公告)日：1995-04-20

    申请号：DE69017827

    申请日：1990-10-16

    Applicant: XEROX CORP

    Inventor： DRAPPEL STEPHAN ,  SHERIDON NICHOLAS K ,  SERENY ARON ,  DOMOTO GERALD A ,  CROWLEY JOSEPH M ,  KNIGHTS JOHN C ,  TILL HENRY R ,  CRYSTAL RICHARD G ,  PROULX RODNEY B ,  LENNON JOHN M ,  ANDERSON HAROLD M

    IPC: G03G15/05 ,  G03G5/02 ,  G03G9/12 ,  G03G13/01 ,  G03G13/10 ,  G03G15/01 ,  G03G15/32

    Abstract: Disclosed are ionographic imaging apparatuses and processes. One apparatus comprises an imaging means (1), means (5) for applying to the imaging means a liquid material capable of forming a dielectric peel layer adhering to the imaging means, ionographic writing means (7) for generating a latent image on the peel layer, means (9) for developing the latent image on the peel layer, and means for simultaneously transferring the peel layer bearing the developed image from the imaging means to a substrate (15) and affixing the peel layer bearing the developed image to the substrate. In another embodiment, the apparatus employs a process which comprises applying to an imaging means a liquid material capable of forming a dielectric peel layer adhering to the imaging means, forming a first latent image on the peel layer with an ionographic writing means, developing the first latent image with a first developer, forming a second latent image on the peel layer containing the first developed image with an ionographic writing means, developing the second latent image with a second developer, forming a third latent image on the peel layer containing the first and second developed images with an ionographic writing means, developing the third latent image with a third developer, and simultaneously transferring the portion of the peel layer that bears the developed images to a substrate and affixing the peel layer bearing the developed images to the substrate. A further embodiment is directed to an apparatus and process for sequentially forming and developing primary color images on an imaging means to form a full color image, followed by transferring the fully formed image to a substrate, wherein the developers employed contain a release agent.

    5.
    发明专利
    未知

    公开(公告)号：DE60220195T2

    公开(公告)日：2007-09-06

    申请号：DE60220195

    申请日：2002-01-16

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  DEJONG JOANNES N M ,  WILLIAMS LLLOYD A ,  ANDERSON HAROLD M

    IPC: B41J11/46 ,  B41J19/18

    Abstract: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

    6.
    发明专利
    未知

    公开(公告)号：DE69321999T2

    公开(公告)日：1999-05-20

    申请号：DE69321999

    申请日：1993-06-15

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  ANDERSON HAROLD M

    IPC: B41J2/525 ,  F16H7/02 ,  G03G15/00 ,  G03G15/01 ,  H04N1/46

    Abstract: In an image forming device, the inherent eccentricities of the photosensitive belts or drums and the timing belt speed reduction drive trains cause misregistration of the developed latent images. To prevent such misregistration, the timing belt (48) of the speed reduction drive train (42) has a peripheral length which is selected from a range of values dependent on a preselected speed reduction ratio n between the driven pulley (46) and the driving pulley (44). Further, each one of the range of values is an integral improper fraction or integral multiple of the circumference of the driven pulley. Moreover, the driving pulley (50) of the last pulley belt set coupled to the photosensitive member (40) and a driven pulley (46) prior to the last pulley belt set rotate n full rotations as the photosensitive member rotates from the image forming location to the image transfer location. In conjunction, every speed reduction ratio of all pulley belt sets prior to the last pulley belt set is an integer value. Thus, the eccentricities will be self-compensated.

    8.
    发明专利
    未知

    公开(公告)号：DE69017827T2

    公开(公告)日：1995-11-16

    申请号：DE69017827

    申请日：1990-10-16

    Applicant: XEROX CORP

    Inventor： DRAPPEL STEPHAN ,  SHERIDON NICHOLAS K ,  SERENY ARON ,  DOMOTO GERALD A ,  CROWLEY JOSEPH M ,  KNIGHTS JOHN C ,  TILL HENRY R ,  CRYSTAL RICHARD G ,  PROULX RODNEY B ,  LENNON JOHN M ,  ANDERSON HAROLD M

    IPC: G03G15/05 ,  G03G5/02 ,  G03G9/12 ,  G03G13/01 ,  G03G13/10 ,  G03G15/01 ,  G03G15/32

    Abstract: Disclosed are ionographic imaging apparatuses and processes. One apparatus comprises an imaging means (1), means (5) for applying to the imaging means a liquid material capable of forming a dielectric peel layer adhering to the imaging means, ionographic writing means (7) for generating a latent image on the peel layer, means (9) for developing the latent image on the peel layer, and means for simultaneously transferring the peel layer bearing the developed image from the imaging means to a substrate (15) and affixing the peel layer bearing the developed image to the substrate. In another embodiment, the apparatus employs a process which comprises applying to an imaging means a liquid material capable of forming a dielectric peel layer adhering to the imaging means, forming a first latent image on the peel layer with an ionographic writing means, developing the first latent image with a first developer, forming a second latent image on the peel layer containing the first developed image with an ionographic writing means, developing the second latent image with a second developer, forming a third latent image on the peel layer containing the first and second developed images with an ionographic writing means, developing the third latent image with a third developer, and simultaneously transferring the portion of the peel layer that bears the developed images to a substrate and affixing the peel layer bearing the developed images to the substrate. A further embodiment is directed to an apparatus and process for sequentially forming and developing primary color images on an imaging means to form a full color image, followed by transferring the fully formed image to a substrate, wherein the developers employed contain a release agent.

    9.
    发明专利
    未知

    公开(公告)号：DE60220195D1

    公开(公告)日：2007-07-05

    申请号：DE60220195

    申请日：2002-01-16

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  DEJONG JOANNES N M ,  WILLIAMS LLLOYD A ,  ANDERSON HAROLD M

    IPC: B41J11/46 ,  B41J19/18

    Abstract: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

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