公开(公告)号：EP0134017A1

公开(公告)日：1985-03-13

申请号：EP84109397.4

申请日：1984-08-08

申请人： International Business Machines Corporation

发明人： Bloom, Robert Dean ,  Burke, Edward Joseph ,  Kozol, Eugene Thomas

IPC分类号： B41J11/44 ,  H02P8/00 ,  G06K15/00

CPC分类号： B41J11/44 ,  G05B19/23 ,  G05B2219/37296 ,  G05B2219/41245 ,  G05B2219/41363 ,  G05B2219/42213 ,  G05B2219/45187 ,  Y10S400/902

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 ¼ 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 ¼ 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.

公开(公告)号：EP0134017B1

公开(公告)日：1987-10-28

申请号：EP84109397.4

申请日：1984-08-08

申请人： International Business Machines Corporation

发明人： Bloom, Robert Dean ,  Burke, Edward Joseph ,  Kozol, Eugene Thomas

IPC分类号： B41J11/44 ,  H02P8/00 ,  G06K15/00

CPC分类号： B41J11/44 ,  G05B19/23 ,  G05B2219/37296 ,  G05B2219/41245 ,  G05B2219/41363 ,  G05B2219/42213 ,  G05B2219/45187 ,  Y10S400/902