Inkjet print cartridge design for decreasing ink shorts by using an elevated substrate support surface to increase adhesive sealing of the printhead from ink penetration
US6244696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a flexible circuit that has a nozzle member formed therein with the nozzle member including a plurality of ink orifices and the flexible circuit having electrical leads. A substrate containing a plurality of heating elements and associated ink ejection chambers and having electrodes to which the electrical leads are bonded is mounted on a back surface of the nozzle member. Each heating element is located proximate to an associated ink orifice with the back surface of the nozzle member extending over two or more outer edges of the substrate. A print cartridge body having a headland portion is located proximate to the back surface of the nozzle member and includes an inner raised wall circumscribing the substrate with an adhesive support surface formed thereon and having wall openings therein. The wall openings have an adhesive support surface and an elevated substrate support surface raised above the adhesive support surface for supporting the substrate. An adhesive layer is located between the back surface of the nozzle member and the headland to affix the nozzle member to the headland. The adhesive layer located on the adhesive support surface of the inner raised wall…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.