发明名称 |
Microprocessor-controlled positioning system |
摘要 |
A positioning system for a line printer uses dc servomotors for driving a forms feed mechanism in increments of one or more line spaces at a time. The system includes a microprocessor and a position counter that counts either 1/4 or 1 degree displacement pulses generated by a motion indicating means including optical transducers and an emitter disk coupled to the motors. The motion indicating means includes an error hold and compensation counter that counts and stores 1/4 degree pulses generated during error movement of the motors relative to a stop position during the uncontrolled state and supplies a corrected 1 degree pulse to the position counter upon start up.
|
申请公布号 |
US4591969(A) |
申请公布日期 |
1986.05.27 |
申请号 |
US19830522144 |
申请日期 |
1983.08.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BLOOM, ROBERT D.;BURKE, EDWARD J.;KOZOL, EUGENE T. |
分类号 |
B41J11/42;B41J11/44;B41J19/76;G05B19/23;(IPC1-7):G05B11/01 |
主分类号 |
B41J11/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|