Patent · US Expired

Descender printing system for dot matrix printer

US4037705A · kind A · utility

21Cited by
7References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 9, 1976
Grant dateJul 26, 1977
Priority date
Expiry dateApr 9, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S400/904
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A descender printing system for a dot matrix printer, comprising a detector for detecting code words representative of descender characters (lower case letters, punctuation, fractions, etc.) prior to printing, and shift means for actuating the line feed mechanism of the printer to advance the paper by two or more dot heights and thereby print the descender elements of such characters below the normal base line. The shift means again actuates the line feed mechanism to return the paper to its original position when the next non-descender character is to be printed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.