Ink supply system and ink-jet recording apparatus
US6474797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet recording apparatus, it is possible to assuredly execute replenishment of ink into an ink tank and control of a pressure within the ink tank during ink replenishment by a simple configuration, and reduce the size and the weight of the apparatus, and improve reliability of the apparatus. The ink-jet recording apparatus includes an ink tank for receiving ink from an ink intake, an ink supply unit for receiving ink from a replenishing tank into the ink tank by a negative pressure introduced from a suction port of the ink tank in the inside of the ink tank, and a negative-pressure controller for causing the negative pressure within the ink tank to remain in an ink supply channel from the replenishing tank to the inside of the ink tank, so that the negative pressure within the ink tank does not return to an atmospheric pressure while receiving ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.