Ink jet printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorYasutsugu Saijo
Life of this patent
Estimating the term…
Abstract
An ink jet printing apparatus including a cap for capping ink orifices provided on a head face of an ink jet print head, an in-cap absorbing body disposed in the cap, the in-cap absorbing body not contacting the head face during capping by the cap, and a suction means for sucking ink from the ink orifices through the cap. The in-cap absorbing body has an end surface which is nearest to the head face during capping by the cap and a lower surface which is farther from the head face during capping by the cap than the end surface, and the cap has a space formed along substantially an entire circumference of a head engagement portion of the cap between the end surface of the in-cap absorbing body and the head engagement portion of the cap.
Claims13
An ink jet printing apparatus comprising:
- a cap for capping ink orifices provided on a head face of an ink jet print head;
- an in-cap absorbing body disposed in the cap, the in-cap absorbing body not contacting the head face during capping by the cap;
- and
- a suction means for sucking ink from the ink orifices through the cap,
- wherein a thickness of an end surface of the in-cap absorbing body exposed to an outside is thinner than that of a top portion of the in-cap absorbing body which is opposite to two side surfaces of the head face with respect to the ink orifices during capping by the cap, and the cap has a space formed along substantially an entire circumference of a head engagement portion of the cap between the end surface of the in-cap absorbing body and the head engagement portion of the cap.
A cap of an ink jet print head for capping a head face of the ink jet print head, the cap comprising:
- an in-cap absorbing body installed in an interior of the cap, the in-cap absorbing body not contacting the head face during capping by the cap, wherein a thickness of an end surface of the in-cap absorbing body exposed to an outside is thinner than that of a top portion of the in-cap absorbing body which is opposite to two side surfaces of the head face with respect to the ink orifices during capping by the cap, and the cap has a space formed along substantially an entire circumference of a head engagement portion of the cap between the end surface of the in-cap absorbing body and the head engagement portion of the cap.
An ink jet printing apparatus comprising:
- a cap for capping ink orifices provided on a head face of an ink jet print head;
- an in-cap absorbing body disposed in the cap, the in-cap absorbing body not contacting the head face during capping by the cap;
- and
- a suction means for sucking ink from the ink orifices through the cap,
- wherein a height of an end surface of the in-cap absorbing body exposed to an outside is higher than that of a top portion of the in-cap absorbing body which is opposite to two side surfaces of the head face with respect to the ink orifices during capping by the cap, and the cap has a space formed along substantially an entire circumference of a head engagement portion of the cap between the end surface of the in-cap absorbing body and the head engagement portion of the cap.
A cap of an ink jet print head for capping a head face of the ink jet print head, the cap comprising:
- an in-cap absorbing body installed in an interior of the cap, the in-cap absorbing body not contacting the head face during capping by the cap, wherein a height of an end surface of the in-cap absorbing body exposed to an outside is higher than that of a top portion of the in-cap absorbing body which is opposite to two side surfaces of the head face with respect to the ink orifices during capping by the cap, and the cap has a space formed along substantially an entire circumference of a head engagement portion of the cap between the end surface of the in-cap absorbing body and the head engagement portion of the cap.
Dependencies are inferred from the claim text.