Printer having a pivotally supported platen
    1.
    发明授权
    Printer having a pivotally supported platen 失效
    打印机具有枢轴支撑的压板

    公开(公告)号:US4836696A

    公开(公告)日:1989-06-06

    申请号:US161151

    申请日:1988-02-26

    摘要: A printing apparatus wherein a platen for supporting a recording medium printed by a print head is pivotally supported by a support member. The support member, which extends between left and right side frames of the printer, includes a first and a second engaging portion at its opposite ends. These engaging portions respectively engage an aperture and a cutout formed through the respective side frames, so that the support member and the platen are pivotally supported by the side frames. The cutout is aligned with the aperture, and is open at an edge of the corresponding side frame. This side frame includes a detent portion disposed adjacent to the cutout. The support member further includes a third engaging portion which engages the detent portion, thereby preventing the second engaging portion from being disengaged from the cutout through the open end of the cutout.

    摘要翻译: 一种打印装置,其中用于支撑由打印头打印的记录介质的压板由支撑构件枢转地支撑。 在打印机的左右侧框架之间延伸的支撑构件在其相对端处包括第一和第二接合部分。 这些接合部分分别接合孔和通过各个侧框形成的切口,使得支撑构件和压板由侧框枢转地支撑。 切口与孔对齐,并在对应的侧框的边缘处打开。 该侧框架包括邻近切口设置的制动部分。 支撑构件还包括接合止动部分的第三接合部分,从而防止第二接合部分从切口的开口端脱离切口。

    Head-pressure mechanism in thermal printer
    2.
    发明授权
    Head-pressure mechanism in thermal printer 失效
    热敏打印机中的压头机构

    公开(公告)号:US4913567A

    公开(公告)日:1990-04-03

    申请号:US139835

    申请日:1987-12-30

    IPC分类号: B41J25/312

    CPC分类号: B41J25/312 Y10T74/19967

    摘要: A printer wherein printing is effected while a print head and a recording medium are moved relative to each other with the print head in pressed contact with the medium. The printer includes a print-head support member for supporting the print head movably between a printing position and a release position. The printer further includes a support member and a displaceable member which are connected by an elastic member, so that the print head is moved from the release position to the printing position, and the print head in the printing position is pressed against the medium. The displacement of the displaceable member consists of a first movement for moving the print head to the printing position, and a second movement for enabling the elastic member to produce a biasing force for pressing the print head against the medium. An amount of displacement of the displaceable member per unit angle of rotation of the rotatable member is greater in the first movement than in the second movement.

    摘要翻译: 一种打印机,其中当打印头与介质压接时打印头和记录介质相对于彼此移动而进行打印。 打印机包括用于在打印位置和释放位置之间可移动地支撑打印头的打印头支撑构件。 打印机还包括通过弹性构件连接的支撑构件和可移动构件,使得打印头从释放位置移动到打印位置,并且打印位置中的打印头被压靠在介质上。 可移动构件的位移由用于将打印头移动到打印位置的第一移动和用于使得弹性构件能够产生用于将打印头压靠在介质上的偏压力的第二移动构成。 可转动构件的每单位旋转角度的可移位构件的位移量在第一运动中大于在第二运动中。