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    • 4. 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。
    • 5. 发明授权
    • Feed mechanism for continuous and cut form paper
    • 连续切割纸的进纸机构
    • US4341480A
    • 1982-07-27
    • US106507
    • 1979-12-26
    • Werner H. Mailer
    • Werner H. Mailer
    • B41J11/48B41J13/16
    • B41J11/48
    • A cut form paper transport apparatus in a belt printer includes driven exit friction rollers disposed for rolling engagement with a pressure roller pivotally supported on a pair of support arms which carry a deflector or guide plate spaced above the platen and disposed for engagement with the leading edge of a sheet of paper as it leaves the printing region for deflection of the leading edge into an exit path tangent to the platen and such that the leading edge of the sheet moves between the exit friction rollers and the pressure roller for engagement thereby when the sheet is in the exit path. Mounted on the deflector plate is a pair of adjustment rollers disposed for rolling engagement with the outer surface of the platen for adjusting the position of the deflector plate with respect to the platen.
    • 带式打印机中的切割纸传送装置包括被驱动的出口摩擦辊,其设置用于与支撑在一对支撑臂上的压力辊滚动接合,压力辊承载在压板上方间隔开的偏转器或引导板,并设置成与前缘 一张纸离开打印区域以使前缘偏转到与压板相切的出口路径,并且片材的前缘在出口摩擦辊和加压辊之间移动,从而当片材 在出口路径。 安装在偏转板上的是一对调节辊,其布置成与压板的外表面滚动接合,以调节偏转板相对于压板的位置。