Control system for matrix print head

Details Control system for matrix print head Control system for matrix print head

1981-12-14

1987-12-15

Miller, Stanley D.

Typewriting machines

Sheet or web

Including friction-feed means

400121, 3072471, 307269, H03K 1700, H03K 513, B41J 302

Patent

active

047136235

ABSTRACT:
A system for printing dot-matrix characters wherein a double column of dot forming elements is used, and no single dot forming element is required to print more often than once in any four column interval of printed text. Means for timing the actuation of the dot forming elements wherein the "on" time of the individual actuators can be longer than the time interval between columns is included.

REFERENCES:
patent: 3125691 (1964-03-01), Astheimer
patent: 3728558 (1973-04-01), Genuit et al.
patent: 4033444 (1977-07-01), Berry
patent: 4079824 (1978-03-01), Ku
patent: 4125336 (1978-10-01), Chu

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