Printer having a stepping motor for driving and retaining a type

Details Printer having a stepping motor for driving and retaining a type Printer having a stepping motor for driving and retaining a type

1994-06-28

1995-05-16

Wiecking, David A.

Typewriting machines

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

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

318696, 400163, B41J 530

Patent

active

054154804

ABSTRACT:
In a printer which selects a character by moving a type wheel by a stepping motor, phases other than a stable phase of windings of the stepping motor are shorted when a rotor of the stepping motor comes to a vicinity of a stable point of a target phase, and an exciting time of the stable phase is gradually extended. The primary drive signal is turned off during energization of a retaining signal and during hammer energization.

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