发明名称 |
Paper margin detecting device for use in printing apparatus |
摘要 |
A paper edge detecting device for a printing apparatus in which a paper margin of a print paper can be detected with high accuracy. A mark printing process is executed upon power-on of a printer, so that a carriage is displaced from an original position H0 to a position corresponding to a set pulse number HP and stopped at that position to print on the print paper a linear mark M aligned in a direction perpendicular to a displacement direction of the carriage. Thereafter, a mark detection process is executed, and the carriage is displaced from the original position H0 until the mark M is detected by the photosensor. Subsequently, a correction amount generating process is executed to calculate a correction value alpha on the basis of the set pulse number HP and the count value CP when the mark M is detected by the photosensor.
|
申请公布号 |
US5255987(A) |
申请公布日期 |
1993.10.26 |
申请号 |
US19920904607 |
申请日期 |
1992.06.26 |
申请人 |
BROTHER KOGYO KABUSHIKI KAISHA |
发明人 |
MIZUNO, TOSHIAKI;IMAIZUMI, MAMORU |
分类号 |
B41J19/18;B41J11/00;B41J11/46;B41J29/00;B41J29/42;B41J29/48;B41J29/50;(IPC1-7):B41J5/30 |
主分类号 |
B41J19/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|