Patent · US Expired

Carriage for ink jet printer

US4940998A · kind A · utility

65Cited by
6References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 4, 1989
Grant dateJul 10, 1990
Priority date
Expiry dateApr 4, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2202/19
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A carriage (66) of an ink jet printer (60) mounts multiple print heads (10) in a non-colinear arrangement. Preferably, the carriage (66) provides four print head pockets (80) disposed at the corners of a rectangle, each of which pockets (80) receives one of the print heads (10). The print heads (10) are precisely located in the pockets (80), and two print heads (10) pass over alternating swaths of the printing medium during each traverse of the carriage (66). Each print head (10) ejects one or more colors in a pattern of dots during each pass.

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