公开(公告)号：DE2251288A1

公开(公告)日：1973-04-26

申请号：DE2251288

申请日：1972-10-19

Applicant: IBM

Inventor： MORRISON DONALD JOE ,  RAESZ REUBEN

IPC: G06F3/12 ,  B41J19/68 ,  B41J19/70 ,  G06K15/08 ,  B41J19/66

Abstract: A system for performing a carrier return operation in a typewriter, printer, etc., having a leadscrew controlled carrier, and controlling when the carrier is to be returned dependent upon a carrier return signal generated in conjunction with combinations of generated signals indicative of rotation and non-rotation of the leadscrew, and the leadscrew rotational position. The system is structured such that the carrier will be returned and properly positioned at the left margin or starting line upon termination of escapement, and upon signals being generated indicating that the leadscrew is in its home rotational position.

公开(公告)号：CA969498A

公开(公告)日：1975-06-17

申请号：CA154493

申请日：1972-10-17

Applicant: IBM

Inventor： MORRISON DONALD J ,  RAESZ REUBEN

IPC: G06F3/12 ,  B41J19/68 ,  B41J19/70 ,  G06K15/08

Abstract: A system for performing a carrier return operation in a typewriter, printer, etc., having a leadscrew controlled carrier, and controlling when the carrier is to be returned dependent upon a carrier return signal generated in conjunction with combinations of generated signals indicative of rotation and non-rotation of the leadscrew, and the leadscrew rotational position. The system is structured such that the carrier will be returned and properly positioned at the left margin or starting line upon termination of escapement, and upon signals being generated indicating that the leadscrew is in its home rotational position.