Liquid ejection apparatus and control method of the liquid ejection apparatus
US7240999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2004 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17556
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejection apparatus has a liquid cartridge including a liquid container that has a flexible portion and stores liquid therein and a pressure chamber for applying pressure to the flexible portion of the liquid container; a liquid ejection head for ejecting liquid; a liquid flow path for guiding liquid from the liquid container to the liquid ejection head; a pressure pump for generating pressurized air; and an air flow path for guiding the pressurized air to the pressure chamber. The pressure pump includes an air chamber that communicates with the air flow path and a pressing member for pressing the air chamber so as to decrease the capacity of the air chamber. The capacity of the air chamber is decreased by the pressing member so as to increase the pressure in the air chamber to an upper limit value of a liquid supply pressure range where a prescribed liquid ejection characteristic is obtained, before a liquid ejecting operation is performed on an ejection target member. A continuous liquid ejecting operation is performed on an ejection target member having a maximum size for the liquid ejection apparatus in a state that the capacity of the air chamber is fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.