| 摘要 |
An ink jet recording head is described which comprises a cavity forming plate (1) in which a plurality of pressure generating chambers (3, 4) is formed and arranged in an arrangement direction, and in which a first opening (2) is formed, a nozzle plate (9) which seals one of opening faces of said cavity forming plate (1) and which has nozzle openings (7, 8) from which ink droplets are ejected. The ink jet recording head furhter comprises a cover plate (14) which seals another opening face of said cavity forming plate (1) and which has a second opening (13) communicating with said first opening (2), and a duct arrangement (2, 5, 6, 13) communicating said pressure generating chambers (3, 4) with an ink reservoir (22), wherein said duct arrangement (2, 5, 6, 13) includes a plurality of ink supply ports (5, 6), each associated with a respective pressure generating chamber (3, 4), and wherein said duct arrangement (2, 5, 6, 13) further includes said first opening (2) formed in said cavity forming plate (1) and said second opening (13) formed in said cover plate (14), wherein said first and second openings (2, 13) each have a cross section which extends in said arrangement direction over a distance corresponding to a distance over which a plurality of said ink supply ports (5, 6) are arranged in said arrangement direction. <IMAGE> |
