| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a full-line type liquid ejection head at a low cost, which is excellent in ejection performance. <P>SOLUTION: A plurality of head units 30 having a plurality of nozzles, a plurality of pressure chambers, a plurality of liquid supply ports 33a and a plurality of actuators are respectively arranged in a two-dimensional array and are covered by a sheet of a common liquid chamber board 60 on top, and a common liquid chamber 62 is installed, which is shared by the plurality of the head units 30. Underneath the common liquid chamber board 60, a porous base 50 having a liquid-permeable property is disposed for constituting the bottom board of the common liquid chamber 62. Onto the lower face of the porous base 50, photosensitive film 40 is pasted, which is consisting of a material having photo-sensitivity and a liquid-impermeable property with a penetration hole 43 corresponding to an arrangement pattern of the liquid supply ports 33a of the head unit 30 being formed using a photolithography method. On the surface pasted with the photosensitive film 40 of the porous base 50, the plurality of head units 30 are interconnected. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
