Ink supply system and ink jet recording apparatus
US6471343B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/17516
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink supply system which includes an ink jet head for discharging ink and an ink tank retaining ink to be supplied to the ink jet head through a passage. A negative pressure generating container is provided along the passage, and generates negative pressure by a restoring force at the time of being deformed. With the ink supply system thus structured, it becomes possible to perform stable recording, because the fluctuation of flow resistance due to the fluctuation of discharge amount is made smaller, and also, there is almost no fluctuation of pressure along the carriage operation. Also, the retaining amount of ink becomes suitably greater for the performance of higher speed printing, and the replacement of ink tanks is possible, while ink still remains in the negative pressure generating container, hence making it possible to essentially prevent a complete ink depletion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.