Patent ID: 6151051
Filing Date: 2000-11-21
Classification: B41J

Abstract:
An ink jet head which is detachably mounted and used in an apparatus having a fitting portion for positioning said ink jet head, and a connecting portion for supplying signals to said ink jet head, said head comprising:an ink ejecting portion having an ink ejecting port so as to eject ink through said ink ejecting port;a positioning portion for definitely determining a position of said ink jet head relative to the apparatus when said ink jet head is fitted to the apparatus;an ink supplying portion which is detachably connected to an ink supplying means of an ink container for supplying ink to said ink jet head;an electric connecting portion electrically connected to the connecting portion of the apparatus; anda plurality of outer surfaces on which said ink ejecting portion, said positioning portion, said ink supplying portion and said electric connecting portion are disposed,wherein said positioning portion, said ink supplying portion and said electric connecting portion are disposed on outer surfaces of said plurality of outer surfaces different from an outer surface of said plurality of outer surfaces on which said ink ejecting portion is disposed, the outer surface on which said positioning portion is disposed is positioned opposite to respective outer surfaces on which said ink supplying portion and said electric connecting portion are respectively disposed, and the outer surface on which said electric connecting portion is disposed is positioned above the outer surface on which said ink supplying portion is disposed, with a step portion between said outer surface on which said electric portion is disposed and the outer surface on which the ink supplying portion is disposed.