Ink jet printer with cartridge having integral storage chamber
US6283585A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17566
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer having an ink container, an ink jet head, and an ink storage container for temporarily storing ink to be supplied from the ink container to the ink-jet head, the ink storage container having a closable air communicating portion communicating with ambient air. A first ink path connects the ink container to the ink storage container, defines a flow of ink from the ink container to the ink storage container, and is provided with a one-way flow restricting member for permitting only a flow of ink in a direction of discharge from the ink container. A second ink path connects the ink storage container to the ink container and defines a flow of ink for returning an excess amount of ink over a predetermined liquid amount in the ink storage container to the ink container. An opening/closing member opens and closes the air communicating portion to ambient air. A buffer container is provided at a portion of the first ink path between the one-way flow restricting member and the ink storage container and is capable of maintaining a predetermined liquid amount. A transfer member transfers ink from the buffer container and is provided at a portion of the first ink path between the buffe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.