Ink slots for providing ink to unilateral heaters
US6834944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Sep 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet print head chip. The chip has a first column of firing chambers and a second column of firing chambers in which each firing chamber comprises a heater and an ink channel. A first ink slot is formed between the first column of firing chambers and the periphery of the chip, in which the first ink slot comprises a plurality of first ink sub-slots and each first ink sub-slot provides ink to part of heaters in the first column of firing chambers. A second ink slot is formed between the second column of firing chambers and the periphery of the chip to provide ink to the heaters in the second column of firing chambers. A dry film is patterned on the entire surface of the chip to separate the first ink sub-slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.