Dot matrix printer

Details Dot matrix printer Dot matrix printer

1985-05-15

1986-06-24

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, 101 9314, 400146, B41J 310

Patent

active

045964793

ABSTRACT:
The present invention relates to a dot matrix printer which makes use of multiple dot patterns distributed on the cylinder, belt, hand or drum of a line printer to provide an improved printing throughput for an all addressable line printer. In a dot-helix matrix printer, different arrangements of the dots are used which can be varied in position and spacing to increase printing speed. On a belt, band or drum line printer, multiple dot patterns are given a predetermined distribution. More specifically, arrangements of dots are used which provide enhanced performance due to the fact that they are determined by an analysis of the statistical occurrence of a particular dot pattern in a character set. The higher statistical probability dot patterns are used more often on the belt, band or drum.

REFERENCES:
patent: 3283702 (1966-11-01), Higgins et al.
patent: 3286625 (1966-11-01), Petit
patent: 3303775 (1967-02-01), Giannuzzi
patent: 3550148 (1970-12-01), Machler
patent: 3742845 (1973-07-01), Giani
patent: 3884148 (1975-05-01), Bergeron
patent: 4102268 (1978-07-01), Guarderas et al.
patent: 4230039 (1980-10-01), Mizutani et al.
IBM Tech. Disc. Bulletin, by A. F. Higginbotham, vol. 22, No. 10, Mar. 1980, pp. 4345-4347.
IBM Tech. Disc. Bulletin, by K. P. Eswaran et al., vol. 21, No. 5, Oct. 1978, p. 2000.

Affiliated with

Also associated with

Rating

Dot matrix printer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dot matrix printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dot matrix printer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2083175