Liquid jet recording head with multiple liquid chambers
US5463412A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jan 12, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid jet recording head comprises plural discharge port groups and a corresponding plurality of liquid chambers for containing liquid to be discharged from the discharge ports. Each of the plural discharge ports has an opposing heat generating element, all of the heat generating elements being disposed on a single substrate having supply holes therein to supply liquid to the liquid chambers. The heat generating elements, being opposed to the discharge ports, are also disposed in groups, each having a common electrode and individual electrodes for the multiple heat generating elements in the group. The supply holes are located in the same area of the substrate as the individual electrodes, thus making the head compact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.