Morgan Lewis & Bockius LLP
Inkjet recording head cartridge and inkjet recording apparatus
The present invention provides an inkjet recording head cartridge and an inkjet recording apparatus that have a simple structure and high reliability. Since individual flow passages in which ink emission orifices are formed are communicated directly with a rectangular ink supply chamber, it is prevented that a bubble of such a size as to cause printing defects rises through an ink supply chamber and blocks the individual flow passages. Also, since ink heated within the ink supply chamber is moved upward to the ink tank chamber by convection and grows an air lump sealed beforehand, it is prevented that a bubble will grow in the ink supply chamber. Furthermore, by allocating a large cross-sectional area to the ink supply chamber, it is prevented that meniscus oscillation of the ink emission orifices is amplified by pressure oscillation caused by ink emission and causes a printing defect. Therefore, reliable printing can be performed with a simple construction.
Fuji Xerox Co., Ltd.
B B B
B41J B41J B41J
inventional inventional inventional
Norikuni Kenji Tomoki Toshinobu Koichi Takayuki Kunihito Kazuyuki Kohzo Ichiro Masaki Koji Yoshihisa
Funatsu Yamazaki Umezawa Hamazaki Saitoh Takeuchi Satou Oda Hara Tomikawa Kataoka Ikegami Ueda