公开(公告)号：EP1440806A4

公开(公告)日：2006-04-12

申请号：EP02775303

申请日：2002-10-08

Applicant: BRIDGESTONE CORP

Inventor： YAMAMOTO KAZUHIRO ,  KINOSHITA HIDEYA ,  YAMAGUCHI NORIYUKI

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/17513 ,  B41J2/17556 ,  B41J2/17563

Abstract: An ink feeding member, comprising an ink tank for storing ink and an ink discharge control material partially inserted into the ink tank with the ink discharge port of the ink tank closed by the control material, characterized in that the ink discharge control material is formed of an ultra fine cell form or a hot press formed product of the form with a density of 0.06 g/cm3 or more, quantity of cells of 100/in or more, and a ventilation volume of 0.002 to 40 cc/cm2/sec.

Abstract translation: 一种供墨件，包括一个用于储存墨水的墨水罐和一个部分地插入墨水
盒的墨水排放控制材料，其中墨水盒的墨水排放口被控制材料封闭，其特征在于，墨水排放控制材料由 密度为0.06g / cm 3或更高，细胞数量为100 / in或更多，通气量为0.002至40cc / cm 2 / sec的超细单元形式或热压成形产品。

公开(公告)号：JP2003112434A

公开(公告)日：2003-04-15

申请号：JP2001311318

申请日：2001-10-09

Applicant: BRIDGESTONE CORP

Inventor： YAMAMOTO KAZUHIRO ,  KINOSHITA HIDEYA ,  YAMAGUCHI NORIYUKI

IPC: B41J2/175

Abstract: PROBLEM TO BE SOLVED: To shorten a time before ink is discharged stably. SOLUTION: The ink supply member is provided with an ink tank where ink is stored, and an ink emission control material partially filled in the ink tank while blocking an ink discharge opening of the ink tank. The ink emission control material is comprised of a superfine cell foam having a density of not smaller than 0.06 g/cm , 100 or more cells per inch and a quantity of airflow of 0.002-40 cc/cm /second or a thermal pressing molded object of the foam. Since a negative pressure rises by a small quantity of the foam and is stable, ideal negative pressure characteristics are shown, and additionally, a quantity of ink in an ink cartridge can be increased. Moreover, the negative pressure can be controlled by changing the material.