Abstract:
An inkjet recording apparatus includes a blade, a protruding member, a holder, a first biasing member, a supply member, and a second biasing member. The protruding member is provided integrally with the blade, and protrudes toward an inkjet head. The holder supports the protruding member and the blade. The first biasing member biases the protruding member and the blade toward the inkjet head around the shaft portion. The supply member is provided on a rear side of the nozzle surface in the moving direction, and is in contact with a tip end portion of the blade so that a cleaning liquid is supplied to the blade. The second biasing member biases the supply member toward the inkjet head. The blade is not in contact with the supply member when the protruding member and the supply member are not pushed from a side of the inkjet head.
Abstract:
An inkjet includes a head unit, a blade, and a cleaning liquid supply member. The head unit is provided with a nozzle surface, and supported to be lifted and lowered. The blade is in contact with the nozzle surface and moves in a predetermined moving direction to wipe off the nozzle surface. The cleaning liquid supply member stores a cleaning liquid, and supplies the cleaning liquid between a moving start position of the blade and the nozzle surface. The cleaning liquid supply member has a plurality of supply ports provided between the moving start position of the blade and the nozzle surface. When a direction crossing to the moving direction is defined as a width direction, a width of the blade is set to “a”, and a width of a region where the supply ports are formed is set to “b”, then the next formula is established, a≤b.
Abstract:
An inkjet recording apparatus includes a holder, a blade and a biasing member. The holder faces a nozzle surface of an inkjet head and moves in a predetermined traveling direction along the nozzle surface. The blade is provided in the holder and swung about a shaft crossing the traveling direction. The biasing member is provided in the holder and biasing the blade in a direction in which a tip end portion of the blade is pressed against the nozzle surface.
Abstract:
A recording head recovery system includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. The pressure contact angle of the tip of the wiper to the ink ejection surface is decreased after the wiper passes the cleaning liquid supply region before reaching the ink ejection region.
Abstract:
A recording head includes an ink ejection portion and an ink holding portion. The ink holding portion includes a sheet portion and a holding portion. The sheet portion has an upper end side fixed to the ink ejection portion and a lower end side movable in a direction of coming closer to or separating away from a side surface of the ink ejection portion. The holding portion is located at a lower end portion of the sheet portion on the ink ejection portion side, is disposed to come into contact with or close to the side surface of the ink ejection portion, and is configured to hold an ink in an adjacent region with respect to the ink ejection portion.
Abstract:
Provided is a recording head recovery system, which includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and includes a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. A height position of a lower end part of the wiper when passing the cleaning liquid supply region is lower than a height position of the lower end part of the wiper when wiping the ink ejection region.
Abstract:
An inkjet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, a cleaning liquid flow path, and a controller. The cleaning liquid flow path includes a vertical tubular member connected to the cleaning liquid supply device and extending upward, and a horizontal tubular member connected to an upper end of the vertical tubular member and extending in a horizontal direction. The controller extrudes a cleaning liquid in at least a part of the cleaning liquid flow path from a cleaning liquid supply port before control of a cleaning operation for wiping an ink ejection surface of the recording head, thereby performing control of an air bubble release operation of the cleaning liquid flow path.
Abstract:
A recording-head recovery system includes a wiper, a drive mechanism, and a control portion. The control portion is capable of performing a recording-head recovery operation which performs successively: a purged ink placing operation in which ink is forcibly pushed out of a ejecting nozzle and the purged ink is placed onto a nozzle region; a ejecting wipe operation in which the purged ink is wiped away by moving the wiper along an ink ejecting surface, applying and spreading the ink over the ink ejecting surface by ejecting the ink from an ejecting nozzle in synchronization with timing when the wiper is passing the nozzle region; and a ejected ink wiping operation in which the ejected ink applied and spread over the ink ejecting surface is wiped away.
Abstract:
An inkjet recording apparatus includes a blade, a first supply member, and a second supply member. The blade performs a wiping operation along a nozzle surface of an inkjet head. The first supply member is provided on a rear side of the nozzle surface in a moving direction in the wiping operation, and supplies a cleaning liquid to the blade. The second supply member is provided on a front side of the nozzle surface in the moving direction in the wiping operation, and supplies the cleaning liquid to the blade.
Abstract:
A liquid supply mechanism includes a tank configured to store liquid, a supply passage having an end connected to the tank so as to allow the liquid to flow, and an ejection member disposed on the supply passage so as to eject the liquid. The ejection member includes a filter, a check valve, and an ejection passage. The filter has a predetermined passage resistance to the passing liquid. The check valve is opened at a predetermined opening pressure for the passing liquid. The ejection passage allows the liquid to flow when the check valve is opened and ejects the liquid from an ejection port formed at a tip thereof. A pressure decompressed by the passage resistance of the filter is larger than the opening pressure of the check valve.