Patent ID: 6135590
Filing Date: 2000-10-24
Classification: B41J

Abstract:
An ink cartridge which is attached to a cartridge attaching part having a joint hollow needle which is associated with a recording head, said ink cartridge comprising:a case attached to said cartridge attaching part and having a case internal surface which defines a receiving space, said case having a front wall opposing to said joint hollow needle, said front wall having a front wall internal surface which defines a first associating hole opposing to said joint hollow needle, said first associating hole disposed to accept said joint hollow needle;a separating wall formed on said case internal surface, said separating wall having a separating wall internal surface which defines a second associating hole which is associated with said receiving space, said second associating hole opposing to said first associating hole, said second associating hole disposed to accept said joint hollow needle;a first separating wall side surface of said separating wall and a first part of said case internal surface defining an ink receiving space which receives an ink, a second separating wall side surface of said separating wall and a second part of said case internal surface defining a leak ink accepting space which is associated with said first and second associating holes and said ink receiving space; anda joint film having elasticity and formed on said separating wall internal surface to be positioned in said second associating hole, said joint film disposed to accept said joint hollow needle; andan ink cleaning film having elasticity and water repellent and formed on said front wall internal surface to be positioned in said first associating hole, said ink cleaning film disposed to accept said joint hollow needle, said ink cleaning film cleaning said joint hollow needle when said joint hollow needle is extracted from said ink cleaning film.