Manually-operated dot printer for pocket sized calculators

Details Manually-operated dot printer for pocket sized calculators Manually-operated dot printer for pocket sized calculators

1981-11-10

1984-02-28

Crowder, Clifford D.

Typewriting machines

Pocket typewriter

400121, 400314, 4003172, 400320, 400338, 400636, 4007051, B41J 336

Patent

active

044339259

ABSTRACT:
A manually operated dot printer designed for use in a pocket sized calculator or a small sized electronic device includes a printing head which is manually movable across a sheet of printing paper in one direction. A pulse generating circuit produces a signal in synchronization with the speed of travel of the printing head. While the printing head is moving in said one direction, the printing head effects electrically controlled printing operations with dots in response to the signal produced by the pulse generating circuit. As the printing head is advanced, spring means store energy which is applied to return the printing head and advance the printing paper.

REFERENCES:
patent: 3767020 (1973-10-01), Rowe
patent: 3826915 (1974-07-01), Giolitti et al.
patent: 3831727 (1974-08-01), Kruspe et al.
patent: 3881587 (1975-05-01), Okabe
patent: 4310256 (1982-01-01), Inoue
patent: 4350456 (1982-09-01), Noda

Affiliated with

Also associated with

Rating

Manually-operated dot printer for pocket sized calculators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manually-operated dot printer for pocket sized calculators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manually-operated dot printer for pocket sized calculators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-757331