Multi-chamber ink jet recording head for color use
US4812859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Sep 17, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2132
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A multichamber ink jet pen has a printhead comprising a plurality of nozzle groups corresponding in number to the number of chambers. The nozzle groups are respectively in communication with the individual chambers for receiving ink. The multi-color ink jet pen is retrofittable in a single color printer to provide multicolor printing capability. The nozzles in the nozzle groups are formatted to correspond to the nozzle format in the printhead of the single color ink jet pen, including the same nozzle spacing, to take advantage of the single color printer control for that nozzle format. The nozzle groups each duplicate a different longitudinal segment of the single color nozzle column pattern. The nozzle groups are staggered in the scan direction and the end nozzles in the respective groups have the same longitudinal spacing therebetween as the nozzles in the nozzle columns to duplicate the nozzle spacing of the single color nozzle column pattern within and between the nozzle groups of the multi-color recording head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.