Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – Carriage-feed mechanism
Patent
1983-08-04
1986-07-29
Pieprz, William
Typewriting machines
Carriage or carriage-moving or movement-regulating mechanism
Carriage-feed mechanism
400903, 318696, B41J 1950
Patent
active
046028820
ABSTRACT:
A serial printer includes a control circuit for driving the printer carriage. The control circuit detects the change of level of a home position signal in synchronism with a print position signal which is produced based upon occurrence of particular data selected out of a cycle of data for driving a step motor so as to increase the permissible range of variation in the change of the level of the home position signal that takes place due to mechanical vibrations differing in mode or phase.
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patent: 4024941 (1977-05-01), Sekikawa et al.
patent: 4145644 (1979-03-01), Lin
patent: 4339702 (1982-07-01), Araki et al.
patent: 4350456 (1982-09-01), Noda
patent: 4443746 (1984-04-01), Araki
patent: 4465959 (1984-08-01), Yajima
Pieprz William
Seiko Epson Corporation
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