Printer for monochrome and color printing
    1.
    发明授权
    Printer for monochrome and color printing 失效
    单色和彩色打印打印机

    公开(公告)号:US5082381A

    公开(公告)日:1992-01-21

    申请号:US379319

    申请日:1989-07-13

    IPC分类号: B41J33/56 B41J35/14 B41J35/22

    CPC分类号: B41J33/56 B41J35/14 B41J35/22

    摘要: A printer for use with both monochrome and color ink ribbon cartridges has a cartridge holder which is rotatable to correctly position the ink ribbon of whichever cartridge is put in place in front of the print head. The cartridge holder and a transmission for driving it are mounted on a carriage which is movable in front of a platen. A driving motor for powering the transmission is placed on the carriage to convert the printer from monochrome so as to be able to use with either a monochrome or a color ink ribbon cartridge and a switch having two sets of contacts in a single circuit responds to the presence of a color ink ribbon cartridge to position the color ribbon in front of the printer at a color home position.

    Apparatus for automatically adjusting a gap between a platen and a print
head
    2.
    发明授权
    Apparatus for automatically adjusting a gap between a platen and a print head 失效
    用于自动调节压板和打印头之间的间隙的装置

    公开(公告)号:US4917512A

    公开(公告)日:1990-04-17

    申请号:US303501

    申请日:1989-01-27

    IPC分类号: B41J25/308

    CPC分类号: B41J25/3088 B41J25/308

    摘要: A mechanism for automatically adjusting the gap between the platen and print head of a printer includes a paper thickness lever detecting lever pivotably mounted on the printer base so that one end selectively contacts the surface of the platen. The opposite end of the lever contacts a pressure sensitive conductive member or adjusts the amount of light striking a photosensitive member of a paper thickness detector to generate an initial signal. After paper is fed onto the platen the lever contacts the surface of the paper and the paper thickness detector generates a second paper thickness signal corresponding to the different position of the lever. A carriage control circuit receives this signal and controls a print head carriage guide to adjust the relative position between the carriage and the platen to provide a suitable distance for printing.

    Printer for monochrome and color printing
    3.
    发明授权
    Printer for monochrome and color printing 失效
    打印机用于单色和彩色打印

    公开(公告)号:US4867587A

    公开(公告)日:1989-09-19

    申请号:US45005

    申请日:1987-04-30

    IPC分类号: B41J33/56 B41J35/14 B41J35/22

    CPC分类号: B41J33/56 B41J35/14 B41J35/22

    摘要: A printer for use with both monochrome and color ink ribbon cartridges has a cartridge holder which is rotatable to correctly position the ink ribbon of whichever cartridge is put in place in front of the print head. The cartridge holder and a transmission for driving it are mounted on a carriage which is movable in front of a platen. A driving motor for powering the transmission is placed on the carriage to convert the printer from monochrome so as to be able to use with either a monochrome or a color ink ribbon cartridge and a switch having two sets of contacts in a single circuit responds to the presence of a color ink ribbon cartridge to position the color ribbon in front of the printer at a color home position.

    摘要翻译: 与单色和彩色墨盒一起使用的打印机具有可旋转的墨盒保持器,以正确地定位在打印头前面放置的任何墨盒的墨带。 盒保持器和用于驱动它的变速器安装在可在压板前方移动的滑架上。 用于为变速器供电的驱动电机被放置在滑架上以将打印机从单色转换成能够与单色或彩色墨盒一起使用,并且在单个电路中具有两组触点的开关响应于 存在彩色墨盒以将彩带放置在打印机前面的着色位置。

    Method of controlling a carriage and a paper feed in a printer
    4.
    发明授权
    Method of controlling a carriage and a paper feed in a printer 失效
    在打印机中控制托架和进纸的方法

    公开(公告)号:US5490734A

    公开(公告)日:1996-02-13

    申请号:US283876

    申请日:1994-08-01

    IPC分类号: B41J19/00 B41J13/00 B41J11/42

    CPC分类号: B41J13/0045

    摘要: The object of the current invention is to print characters, for example, on a substantially full area of a recording medium extended up to the leading or trailing edge of the recording medium. A carriage is moved so that a print hole of a ribbon mask is positioned at a medium center as viewed in the direction of feeding of a recording medium. The recording medium is fed to a position so that the print hole is at a print start position. A print operation is carried out toward a first side edge of the recording medium. The recording medium is then fed in the reverse direction to a position where the print hole is away from the recording medium as viewed in the character pitch direction. The carriage is then moved so that the print hole is positioned at a medium center as viewed in the direction of feeding of a recording medium. Thereafter, the medium is fed to a position so that the print hole is at a print start position. A print operation is then carried out toward a second side of the recording medium. A similar operation may be carried out to print on the trailing edge of a recording medium. Thus, characters may be printed on the leading or trailing edge of the recording medium without catching the any of the corners of the recording medium on the print hole.

    摘要翻译: 本发明的目的是打印例如在延伸到记录介质的前端或后缘的记录介质的基本上完整的区域上的字符。 移动滑架使得带状掩模的打印孔位于从记录介质的馈送方向观察的介质中心处。 将记录介质送入位置,使得打印孔处于打印开始位置。 朝向记录介质的第一侧边缘进行打印操作。 然后,记录介质沿着与字符间距方向相同的反方向被馈送到打印孔远离记录介质的位置。 然后移动滑架,使得当从记录介质的馈送方向观察时,打印孔位于中间中心。 此后,将介质送入位置,使得打印孔处于打印开始位置。 然后朝向记录介质的第二侧执行打印操作。 可以进行类似的操作以在记录介质的后端上进行打印。 因此,可以在记录介质的前端或后端打印字符,而不会将记录介质的任何角落在打印孔上。