Impact dot printer having a ring-shaped magnetic bypass means

Details Impact dot printer having a ring-shaped magnetic bypass means Impact dot printer having a ring-shaped magnetic bypass means

1989-09-12

1991-08-20

Crowder, Clifford D.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 227

Patent

active

050409093

ABSTRACT:
An impact dot print head for driving a printing wire is provided. An armature has a printing wire mounted at one end and is attached to a leaf spring at its other end. A ring-shaped primary magnet provides a magnetic force for maintaining the armature in a stand-by condition. A plurality of coil electromagnets provided for each respective armature. The coil magnets form a ring having an inner circumference. A ring-shaped magnetic member is provided within the diameter of the ring formed by the coil electromagnets to reduce the magnetic interference between adjacent electromagnetic coils during driving of the printing wires.

REFERENCES:
patent: 4555192 (1985-11-01), Ochiai
patent: 4597680 (1986-07-01), Norigoe et al.
patent: 4895404 (1990-01-01), Rubinshtein
patent: 4913569 (1990-04-01), Koyama et al.

Affiliated with

Also associated with

Rating

Impact dot printer having a ring-shaped magnetic bypass means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Impact dot printer having a ring-shaped magnetic bypass means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact dot printer having a ring-shaped magnetic bypass means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1004086