发明名称 Printer controller and method thereof for a printhead assembly
摘要 A print controller apparatus and method thereof for controlling the movement of a printhead assembly including a carriage, printhead, and head pins. First and second moving times of the carriage moving from first and second predetermined distances and a difference between these moving times are determined. The carriage at a third predetermined distance is then determined based on the first and second moving times and the difference of the moving times. A basic timing signal corresponding to the current print mode is generated in accordance with the current moving time of the carriage. A correction value is then computed based on the current moving time of the carriage and from a preceding detected moving time which equals a predetermined time the printhead arrives at the printing paper. The basic timing signal is corrected using the correction value to thereby generate a print timing signal. In accordance with a speed signal being of an inverse proportion to the current moving speed of the carriage and with a preceding computed print timing signal, a drive signal in proportion to the speed signal causes the head pin to make contact with the printing paper for a corresponding amount of time.
申请公布号 US5439301(A) 申请公布日期 1995.08.08
申请号 US19930151856 申请日期 1993.11.15
申请人 SEIKO EPSON CORPORATION 发明人 NISHIZAWA, KATSUHIKO
分类号 B41J2/51;B41J2/30;B41J19/18;(IPC1-7):B41J9/24 主分类号 B41J2/51
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