公开(公告)号：US3872959A

公开(公告)日：1975-03-25

申请号：US33148673

申请日：1973-02-12

Applicant: WANG LABORATORIES

Inventor： WANG AN ,  CHU GE YAO ,  WU EDWARD S

IPC: B41J5/30 ,  B41J19/32 ,  B41J19/96 ,  B41J25/20

CPC classification number: B41J19/96 ,  B41J5/30 ,  B41J19/32 ,  B41J25/20 ,  Y10S400/903

Abstract: A writer selectively operable in an alpha-numric symbol printing mode and a positioning mode. The writer includes a horizontally movable type head having a plurality of corresponding alphanumeric printing symbols, operable in response to printing signals to print the symbols and horizontally movable in response to horizontal spacing function signals; and a platen rotatable in response to vertical spacing function signals. Type head drive means are provided for incrementally horizontally moving the type head in fine increments, the alpha-numeric spacing increments being an integral multiple thereof, and platen drive means are provided for incrementally rotating the platen in fine increments. In general, this is done by control means for operating the type head comprising horizontal function signal generating means for incrementally horizontally moving the type head in fine increments, and platen drive means comprising vertical function signal generating means for incrementally rotating the platen in fine increments, the function keys providing function signals being connected to the function signal generating means for generating a plurality of fine increment signals equal to an alpha-numeric increment.

Abstract translation: 写入器可选择性地以阿尔法数字符号打印模式和定位模式操作。 作者包括具有多个对应的字母数字打印符号的水平移动型头部，可响应于打印信号打印符号并响应于水平间隔功能信号而水平移动; 以及可以响应于垂直间隔功能信号而旋转的压板。 提供类型头驱动装置用于以微小的增量递增地水平移动类型头，字母数字间距增量是其整数倍，并且提供压板驱动装置用于以微小的增量递增地旋转压板。 通常，这通过用于操作类型头的控制装置来实现，该类型头包括水平功能信号产生装置，用于以微小增量递增地水平移动类型头部;以及压板驱动装置，其包括垂直功能信号发生装置，用于以微小的增量递增地旋转压板， 提供功能信号的功能键连接到功能信号产生装置，用于产生等于字母数字增量的多个精细增量信号。