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    • 3. 发明授权
    • Print gap adjust mechanism for printers
    • 打印机打印间隙调整机构
    • US4178106A
    • 1979-12-11
    • US855007
    • 1977-11-25
    • Werner H. MailerCharles E. Milliser
    • Werner H. MailerCharles E. Milliser
    • B41J25/308B41J3/04
    • B41J25/3088B41J25/308
    • The gap between the print head and the printing surface or platen in a printer is extremely critical in certain types of printers. Where printers are required to accept print media of various thickness (single or multipart paper), an adjust mechanism is required to optimize the print gap. A problem arises thereafter whenever ribbon has to be changed or new paper fed into the printer, since the print head must be retracted from its optimum gap position for ease of operation. The present invention provides for automatically resetting the print head to its predetermined previous gap spacing following movement of the print head away from the printing surface for servicing such as paper loading on ribbon replacement. This is accomplished by providing a lever, adapted to move the print head away from the printing surface, with a cam face for mating with a cam follower carried by a gap adjustment arm pivoted for movement in fixed distance increments about a pivot point. The movable arm serves as a memory for recording the previous print head gap spacing as well as providing extremely fine control for moving the print head in fine, fixed distance increments corresponding to the incremental distance movements of the movable arm.
    • 打印机中的打印头与打印面或压板之间的间隙在某些类型的打印机中是非常关键的。 如果打印机需要接受各种厚度的打印介质(单页或多页纸),则需要调整机构来优化打印间隙。 此后,由于打印头必须从其最佳间隙位置缩回才能使操作变得容易,因此当需要更换色带或将新的纸送入打印机时,会出现问题。 本发明提供了在打印头远离打印表面移动之后自动将打印头复位到其预定的先前间隙间隔,以进行维修,例如更换带上的纸张装载。 这是通过提供一种适于将打印头移离印刷表面的杠杆来实现的,其中凸轮面与用于以枢转点为中心以固定距离增量运动的间隙调节臂承载的凸轮从动件相配合。 可移动臂用作用于记录先前打印头间隙间隔的存储器,以及提供非常精细的控制,用于以对应于可移动臂的增量距离移动的精细的固定距离增量移动打印头。
    • 4. 发明授权
    • High-symbol density printer cartridge having a flexible exit arm, gear
shield and support spacers
    • 高符号密度打印机墨盒具有柔性出口臂,齿轮屏蔽和支撑间隔物
    • US4880323A
    • 1989-11-14
    • US183083
    • 1988-04-19
    • Charles E. MilliserJohn M. KaraleviczHarry C. Quick
    • Charles E. MilliserJohn M. KaraleviczHarry C. Quick
    • B41J32/00B41J32/02B41J33/14B41J33/26
    • B41J32/02
    • A shuttle matrix printer cartridge has a housing for storing the ribbon, an exit arm, an entrance arm spaced from the exit arm and a drive mechanism for removing ribbon from the storage chamber through the exit arm into position for printing between a printhead and a substrate and reentry into the cartridge through the entrance arm. The entrance arm is flexible in the plane of the cartridge toward and away from the exit arm to facilitate changes in ribbon drag produced during high dot density printing. The cartridge has three spacer legs along its underside for supporting the cartridge on the printer platform in use. Additionally, a post engages a recess in the exit arm to maintain the latter arm rigid during use, while such post, in conjunction with a drive shaft carried by the printer and received in a cartridge drive wheel, positions the cartridge in the printer against lateral movement. A shield is disposed between the drive gears and nip rollers in the drive mechanism to prevent ensnarlment of the ribbon in the drive gears.
    • 梭式打印机盒具有用于存储色带的外壳,出口臂,与出口臂间隔开的入口臂和驱动机构,用于通过出口臂从储存室移除色带以便在打印头和基板之间打印的位置 并通过入口臂重新进入墨盒。 入口臂在墨盒的平面内朝向和远离出口臂是柔性的,以便于在高点密度打印期间产生的色带阻力的变化。 墨盒在其下侧具有三个间隔腿,用于在打印机平台上支撑墨盒。 此外,柱子与出口臂中的凹部接合以在使用期间将后臂保持刚性,而这种柱与由打印机承载并被接收在盒式驱动轮中的驱动轴一起将打印机定位在打印机的侧面 运动。 在驱动齿轮和驱动机构中的夹持辊之间设置有屏蔽件,以防止色带在驱动齿轮中的收缩。