发明名称 Multi-pass matrix printing
摘要 In a printer including a record material movable past a printing station, and a print assembly capable of printing a line of characters in dot matrix format upon relative movement of the print assembly and the record material in a first direction, a method and apparatus is disclosed for printing the line of characters. In accordance with such method and apparatus, the print assembly and record material are first moved relative to one another in the first direction at a first predetermined speed. Then, the print assembly is activated to print a first predetermined number of dots of the dot matrix pattern defining each character in the line. This is followed by moving the print assembly relative to the record material a predetermined amount in a second direction perpendicular to the first direction, and effecting relative movement of the print assembly and the record material in a third direction opposite the first direction. Then, relative movement is effected between the print assembly and the record material in the first direction again, but at a second predetermined speed. This is followed by activating the print assembly to print a second predetermined number of dots of the dot matrix pattern defining each character in the line.
申请公布号 US4242003(A) 申请公布日期 1980.12.30
申请号 US19780952040 申请日期 1978.10.16
申请人 XEROX CORP 发明人 RAGEN, ROBERT A
分类号 B41J2/51;B41J2/505;G06K15/08;G06K15/10;(IPC1-7):B41J3/12 主分类号 B41J2/51
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