-
公开(公告)号:US06612689B2
公开(公告)日:2003-09-02
申请号:US09981218
申请日:2001-10-16
IPC分类号: B41J2/175
CPC分类号: B41J2/17556 , B41J2/17509 , B41J2/17523
摘要: An ink supply device is provided in correspondence with a recording head unit. The recording head unit has a recording head that ejects ink drops onto a recording medium on the basis of image information. Additionally the recording head unit has a sub ink tank provided with an air communication hole. The ink supply device includes an ink supply unit that supplies ink to the sub ink tank by reducing pressure on the inside of the sub ink tank through a pressure reduction part. A sealing part at least implements sealing of the air communication hole while the ink supply unit is reducing the pressure inside the sub ink tank.