Ink jet recording head, an ink jet unit and an ink jet apparatus using said recording head
US6155677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head for performing recording by discharging inks comprises an element substrate provided with a plurality of discharge energy generating elements for discharging the inks and a grooved member integrally having discharge ports, a plurality of grooves constituting ink flow passages provided corresponding to the discharge energy generating elements, a plurality of recess portions constituting a plurality of liquid chambers for supplying the inks to a plurality of ink flow passages, and separation grooves provided between the plurality of recess portions to separate between the recess portions constituting the liquid chambers. The element substrate and the groove member being jointed together. The liquid chambers are separated by the separation grooves for preventing the inks from flowing between the liquid chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.