초록 ▼

In a miniature printer for printing with dots on printing paper, concentrically mounted driving cams provide both horizontal and vertical motions which synchronize the reciprocating action of the printing head mechanism with the paper feed and ink ribbon feed mechanism. Constant velocity linear moti

In a miniature printer for printing with dots on printing paper, concentrically mounted driving cams provide both horizontal and vertical motions which synchronize the reciprocating action of the printing head mechanism with the paper feed and ink ribbon feed mechanism. Constant velocity linear motion is provided for the print head. The printing paper may be removed in either direction from the printer.

대표청구항 ▼

A printer for printing sequential lines of characters on recording paper, comprising: a frame; a printing head mounted to said frame for reciprocating motion relative to said recording paper; first driving means for reciprocating said printing head, said first driving means including a first cam and

A printer for printing sequential lines of characters on recording paper, comprising: a frame; a printing head mounted to said frame for reciprocating motion relative to said recording paper; first driving means for reciprocating said printing head, said first driving means including a first cam and follower whereby the velocity and position of said printing head is regulated; an elongated ink ribbon, said ink ribbon being interposed between said printing head and said recording paper; means for moving said ink ribbon transversely to the reciprocating motion of said printing head, said means for moving said ink ribbon transversely includes a second cam and follower; means for incrementally feeding said recording paper to said printing head for printing, said means for feeding including a third cam and follower, said first and second and third cams turning in unison about a common axis, whereby said paper feeding and ink ribbon moving are sychronized to a particular position of said reciprocating printing head.