Liquid discharge apparatus and method for controlling the same
AssigneeCanon Kabushiki Kaisha
InventorsTohru Ishibashi, Yoshimasa Araki, Akio Saito, Koichi Kitakami, Yasuyuki Tamura
Life of this patent
Estimating the term…
Abstract
A liquid discharge apparatus comprises a head having an discharge port surface on which a discharge port is provided for discharging a liquid, and a liquid moving unit arranged apart from the discharge port surface and configured to be movable along the discharge port surface, wherein, the liquid moving unit moves a liquid on the discharge port surface to a collecting position in which the discharge port is not provided, with a moving of the liquid moving unit.
Claims20
A liquid discharge apparatus comprising:
- a head having an discharge port surface on which a discharge port is provided for discharging a liquid;
- and
- a liquid moving unit arranged apart from the discharge port surface and configured to be movable along the discharge port surface, wherein, the liquid moving unit moves a liquid on the discharge port surface to a collecting position in which the discharge port is not provided, with a moving of the liquid moving unit.
A method for controlling a liquid discharge apparatus provided with a head having an discharge port surface on which an discharge port is provided for discharging a liquid, comprising:
- moving a liquid on the discharge port surface to a collecting position in which the discharge port is not provided, by a liquid moving unit that is arranged apart from the discharge port surface and configured to be movable along the discharge port surface.
A liquid discharge apparatus comprising:
- a head having an discharge port surface on which a discharge port is provided for discharging a liquid;
- a negative pressure generating unit arranged opposite to the discharge port surface and configured to generate a negative pressure with respect to the discharge port surface;
- and
- a moving unit configured to move the negative pressure generating unit along a predetermined direction, wherein
- the negative pressure generating unit comprises:
- a suction opening configured to generate the negative pressure by suction;
- a first counter surface portion which is arranged on a more forward side along the predetermined direction than the suction opening, and which is arranged apart from the discharge port surface at a first distance;
- and
- a second counter surface portion which is arranged on a more backward side along the predetermined direction than the suction opening, and which is arranged apart from the discharge port surface at a second distance that is larger than the first distance.
A liquid discharge apparatus comprising:
- a head having an discharge port surface on which a discharge port is provide for discharging a liquid;
- a counter member arranged opposite to the discharge port surface;
- and
- a moving unit configured to move the counter member along a predetermined direction, wherein
- the counter member comprises:
- a collecting opening configured to collect a liquid on the discharge port surface;
- a first counter surface portion which is arranged on a more forward side along the predetermined direction than the collecting opening, and which is arranged apart from the discharge port surface at a first distance;
- a second counter surface portion which is arranged on a more backward side along the predetermined direction than the collecting opening, and which is arranged apart from the discharge port surface at a second distance that is larger than the first distance;
- and
- a nozzle portion arranged on a more backward side along the predetermined direction than the collecting opening and configured to blow a gas to the discharge port surface.
Dependencies are inferred from the claim text.