......DE....FRGB..................................R0761442EUROPEAN PATENT APPLICATIONA319970813EP96113658.719960826enenen218779/9519950828JP236276/9519950914JP19970813199733199703121997116 6B 41J 2/06 A 6B 41J 2/14 BdeElektrostatischer Tintenstrahlaufzeichnungskopf mit mehreren Trennwänden in TintenstrahlrichtungenElectrostatic ink-jet recording head having a plurality of partitions in the direction of ink ejectionfrTête d'enregistrement à jet d'encre électrostatique à plusieurs cloisons en direction de l'éjection de l'encre3NEC CORPORATION00236690es-218779/957-1, Shiba 5-chome Minato-kuTokyoJPUematsu, RyosukeNEC Corp., 7-1, Shiba 5-chomeMinato-ku, TokyoJPSuetsugu, JunichiNEC Corp., 7-1, Shiba 5-chomeMinato-ku, TokyoJPShima, KazuoNEC Corp., 7-1, Shiba 5-chomeMinato-ku, TokyoJPMinemoto, HitoshiNEC Corp., 7-1, Shiba 5-chomeMinato-ku, TokyoJPHagiwara, YoshihiroNEC Corp., 7-1, Shiba 5-chomeMinato-ku, TokyoJPGlawe, Delfs, Moll & Partner00100692Patentanwälte Postfach 26 01 6280058 MünchenDEDEFRGB19970813199733

Recording electrodes 2 are formed on a substrate 1. A cover member 6 having a ink chamber therein is fixed onto the recording electrodes 2. Charged color particulate materials are used in the ink. Partitions 10 are formed between the tips of the recording electrodes 2 and the tip portion of the cover member 6. The tip portions of the partitions 10 are disposed so as to be located on the side of ink ejection with respect to the tip portions of the recording electrodes 2, and the tips of the partitions at a side of the substrate 1 are indented toward the tips of the recording electrodes 2. Therefore, charged toner particles quickly concentrate on ink menisci formed at the indenting portion under the partitions 10, to thereby enable stable ink supply and high-speed printing.