Ink jet recording apparatus for ejecting droplets of ink through promotion of capillary action
US5367324A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Sep 10, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal ink jet recording apparatus includes at least a substrate having at least a plurality of heating elements disposed in rows in at least two groups. Each group consists of two rows of heating elements, one row arranged on either side of the ink supply portion, each of the groups of the heating elements being associated with a single color ink. At least one nozzle plate has a plurality of nozzles disposed on the substrate where at least one nozzle plate and the substrate define a space between the nozzle plate and the substrate in registration with each group of heating elements and corresponding group of nozzles associated with a single color ink. Means are provided for independently delivering ink of one color from the ink reservoir to each of the spaces, whereby printing can be independently effected in at least two colors of ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.