Typewriter lid actuated printing element homing and carrier repo

Details Typewriter lid actuated printing element homing and carrier repo Typewriter lid actuated printing element homing and carrier repo

1986-10-15

1988-09-06

Wiecking, David A.

Typewriting machines

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

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

400 54, 400322, B41J 130

Patent

active

047688912

ABSTRACT:
The present invention is a typewriter lid actuated printing element homing device which uses a single switch for assuring that the printing element is engaged and maintained in its home position without any accompanying noise after the printing element is inserted, and also for assuring that the printing element is in its correct escapement position after the printing element is inserted. When the typewriter lid is closed, the carrier escapement position and the carrier motor phase is entered into memory. A latch member controlled by an actuator engages a notch in a flange of a rotating printing element drive gear for establishing the home position of the printing element. When the latch member engages the flange, the printing element drive gear motor is deenergized, stopping rotation of the drive gear, and the noise which would otherwise be caused by the print element drive motor continuously trying to rotate against the latch member is eliminated. The carrier is thereafter moved to its correct escapement position, which is the last print position occupied by the carrier when the lid was opened.

REFERENCES:
patent: 4389129 (1983-06-01), Sugiura
patent: 4504158 (1985-03-01), Ciampi et al.
patent: 4541746 (1985-09-01), Bobart et al.
patent: 4605324 (1986-08-01), Musso
patent: 4676679 (1987-06-01), Kondo

Affiliated with

Also associated with

Rating

Typewriter lid actuated printing element homing and carrier repo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Typewriter lid actuated printing element homing and carrier repo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Typewriter lid actuated printing element homing and carrier repo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1603662