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    Toner recovery system
    1.
    发明授权
    Toner recovery system 失效
    墨粉回收系统

    公开(公告)号：US3894514A

    公开(公告)日：1975-07-15

    申请号：US42674973

    申请日：1973-12-20

    Applicant: IBM

    Inventor： CAUDILL ALLISON H ,  HOEKZEMA RONALD J ,  WILSON CLEMENT C

    IPC: G03G15/08 ,  G03G21/10 ,  B05B5/02

    CPC classification number: G03G21/10

    Abstract: A portion of a xerographic development material is slowly circulated past a vertically oriented porous wall where it serves as a filter for airborne toner particles flowing therethrough. Toner enriched development material is returned to the main body of development material for reuse. Toner particles cleaned from residual xerographic images are conveniently transported by airflow entrainment to the development material filter.

    Abstract translation: 静电复印显影材料的一部分缓慢地循环通过垂直定向的多孔壁，其中它用作流过其中的空气中的调色剂颗粒的过滤器。 富含碳粉的开发材料返回到开发材料的主体进行再利用。 清洁残留静电复印图像的调色剂颗粒通过气流夹带方便地传送到显影材料过滤器。

    Dual feed rate ribbon mechanism and supply cartridge therefor
    3.
    发明授权
    Dual feed rate ribbon mechanism and supply cartridge therefor 失效
    双馈机器和供应盒

    公开(公告)号：US3604549A

    公开(公告)日：1971-09-14

    申请号：US3604549D

    申请日：1968-07-16

    Applicant: IBM

    Inventor： CAUDILL ALLISON H ,  GOFF WILLIE JR

    IPC: B41J32/00 ,  B41J33/36 ,  B41J33/56 ,  B41J35/36 ,  B41J33/14

    CPC classification number: B41J33/36 ,  B41J35/36

    Abstract: A ribbon feed mechanism for feeding a substantially constant linear or longitudinal amount of single pass ribbon past a printing position during each ribbon feed cycle. A cartridge, which is removably mounted on a baseplate, has a supply spool and a takeup spool rotatably mounted therein with the ends of the single pass ribbon attached thereto. The bottom wall of the cartridge has a curved slot to receive a resiliently biased drive roller, which is rotatably mounted on a pivotal arm on the baseplate and has pointed projections thereon for penetrating the inked ribbon on the takeup spool to linearly advance the ribbon past its printing position. The drive roller is rotated by a gear train during each actuation of a character key on the typewriter. Means change the gear ratio of the gear train to cause a smaller amount of rotation of the drive roller during each actuation of a character key to advance the ribbon a smaller linear amount. The cartridge has a cylindrical recess to receive a portion of the gear train. When the ribbon is a solvent coated plastic transfer matrix whereby overstriking is desired, then resiliently biased means is disposed within the recess in the cartridge to render the change means operative to reduce the amount of rotation of the drive roller. If a total release ribbon is used wherein no overstriking is desired, then the recess in the cartridge is empty and the larger amount of rotation of the drive roller occurs because the change means is not rendered operative.

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