Control system for impact printer

Details Control system for impact printer Control system for impact printer

1982-10-04

1985-01-15

Sewell, Paul T.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Including type-faces movable relative to type-face-carrier

400 51, 400 52, 400279, 400322, B41J 130

Patent

active

044935706

ABSTRACT:
In an impact printing apparatus including a carriage which carries a rotary type element, the length of time required for a motor drive system for the carriage stop hunting and stabilize at a desired printing position depends on variables including the distance the carriage was moved, character pitch and the like. The apparatus senses these variables and delays hammering of the type element for printing for a length of time calculated to reduce the displacement of the carriage from the desired printing position caused by hunting to an acceptable value while maximizing the effective printing speed.

REFERENCES:
patent: 4030591 (1977-06-01), Martin et al.
patent: 4189246 (1980-02-01), Kane et al.
patent: 4232975 (1980-11-01), Kane
IBM Tech. Disc. Bulletin, by J. H. Meier et al., vol. 19, No. 1, Jun. 1976, pp. 115-117.
IBM Tech. Disc. Bulletin, by W. K. Bakezak et al., vol. 21, No. 12, May 1979, pp. 4759-4760.

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