Printing apparatus having a rotatable member rotatable in increm

Details Printing apparatus having a rotatable member rotatable in increm Printing apparatus having a rotatable member rotatable in increm

1989-06-20

1990-11-20

Wiecking, David A.

Typewriting machines

For line-spacing by incremental rotation of platen

With means to prevent reverse rotation or ensure full...

400568, 400902, 400575, B41J 1982

Patent

active

049714660

ABSTRACT:
There is described a printing apparatus in which line feed is achieved by rotating a platen with a paper advancing motor and the printing is conducted while the platen is stopped by the paper advancing motor. The printer is further provided with a detent mechanism for stopping the platen at the interval of a determined angle, and a solenoid for deactivating the function of the detent mechanism.

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IBM Technical Disclosure Bulletin, vol. 19, No. 8, Jan. 1977, pp. 2974-2975, "Stepping Motor Stop Control" by Barnett et al.
IBM Technical Bulletin, vol. 17, No. 4, "Electromechanical Variable-Index System", pp. 959-960, Sep. 1974.

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