Invention Grant
- Patent Title: Ink cartridge
- Patent Title (中): 墨盒
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Application No.: US10580374Application Date: 2004-11-23
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Publication No.: US07954933B2Publication Date: 2011-06-07
- Inventor: Jinming Fung , Qingguo Xiao
- Applicant: Jinming Fung , Qingguo Xiao
- Applicant Address: CN Zhuhai, Guangdong
- Assignee: Print-Rite•Unicorn Image Products Co., Ltd. of Zhuhai
- Current Assignee: Print-Rite•Unicorn Image Products Co., Ltd. of Zhuhai
- Current Assignee Address: CN Zhuhai, Guangdong
- Agency: Fay Sharpe LLP
- Priority: CN200310112411 20031128
- International Application: PCT/CN2004/001335 WO 20041123
- International Announcement: WO2005/051665 WO 20060609
- Main IPC: B41J2/175
- IPC: B41J2/175

Abstract:
An ink cartridge for inkjet printers is disclosed. The inkjet cartridge comprises a case, an ink supply chamber, and an ink storage chamber. The ink supply chamber and the ink storage chamber are inside the case. An ink outlet is provided on a sidewall of the case. The ink supply chamber is connected or linked in a low position with the ink outlet and in a high position with an air vent. The ink storage chamber is connected or linked in a low position with the ink supply chamber through a first passageway and a second passageway; the second passageway is below the ink outlet but above the first passageway. The cartridge has a simple structure. It eliminates the need of air pump and provides constant supply of ink to the print head. It avoids ink overflow caused by the temperature change in the environment.
Public/Granted literature
- US20110069126A1 Ink Cartridge Public/Granted day:2011-03-24
Information query
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