Patent · US Expired

Arrangement for a printing head in ink mosaic printing devices

US4368477A · kind A · utility

11Cited by

4References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Joachim Heinzl · Munich, DE
Erich Kattner · Munich, DE
Guenter Rosenstock · Munich, DE

Key dates

Filing date	May 8, 1981
Grant date	Jan 11, 1983
Priority date	—
Expiry date	May 8, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/155
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A printing head for an ink mosaic printing device is provided with a plurality of diagonally extending ink ducts having downstream ends converging at a printing location on the printing head to form a printing grid pattern. The downstream leading ends of the ducts are formed with wedge-shaped tapered portions, each having a leading edge wall carrying a discharge orifice for ink droplets. By virtue of this construction of the ink ducts, more ink ducts may be used to form the grid pattern and the various discharge orifices may be placed closer to one another to provide higher printing resolution.

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