Printer system with compressed print capability

Details Printer system with compressed print capability Printer system with compressed print capability

1978-12-18

1980-12-02

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, 400124, B41J 312

Patent

active

042368359

ABSTRACT:
A dot matrix printer having a reciprocating hammer bank prints characters in either a standard or a compressed size using one of two different sets of modulation bits stored in a character generator for each character. A control code byte preceding each line of characters to be printed selects the sets of modulation bits in the character generator to be used and in addition selects the repetitive counts to be made by two different decoders in response to timing pulses designating the different dot column positions during each sweep of the hammer bank to control the application of the modulation bits from the character generator to actuating mechanisms for the hammers within the hammer bank. The compressed characters are the same height as but of reduced width compared to the standard characters, with the result that each hammer in the hammer bank prints a greater number of compressed characters than standard characters while bidirectionally reciprocating through a fixed distance relative to a paper or other printable medium.

REFERENCES:
patent: 3941051 (1976-03-01), Barrus et al.
patent: 3991868 (1976-11-01), Robinson et al.
patent: 4050563 (1977-09-01), Menhennett
patent: 4169684 (1979-10-01), Blom

Affiliated with

Also associated with

Rating

Printer system with compressed print capability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printer system with compressed print capability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer system with compressed print capability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2281720