Abstract:
An ink jet head includes an ejection unit including first nozzles arranged along a line, second nozzles arranged parallel to the first nozzles, a first actuator configured to cause ink to be ejected from the first nozzles, and a second actuator configured to cause ink to be ejected from the second nozzles, a first drive circuit configured to drive the first actuator, a second drive circuit configured to drive the second actuator, and a casing. The casing has a first space on a first side of the casing and a second space on a second side of the casing that is opposite to the first side. The first drive circuit is housed in the first space and the second drive circuit is housed in the second space.
Abstract:
A liquid discharge head includes a head, a liquid supply conduit, a liquid discharge conduit, a radiator, first and second wiring boards, and a heat conductive member. Liquid is supplied to the head for discharge through the liquid supply conduit. Liquid that passes through the head flows to the liquid discharge conduit. The radiator includes a flow path through which a coolant flows. The coolant is different from the liquid supplied to the head for discharge. The first wiring board is between the head and the radiator and has a connector connected to a wiring extending through an inner space of the radiator. The second wiring board is between the head main body and the first wiring board, and includes, thereon, a driving control element. The heat conductive member extends between the head and the radiator, and is in thermal contact with the radiator.
Abstract:
A liquid discharge head includes a head, a liquid supply conduit, a liquid discharge conduit, a radiator, first and second wiring boards, and a heat conductive member. Liquid is supplied to the head through the liquid supply conduit. Liquid that passed the head flows through the liquid discharge conduit. The radiator includes a flow path through which liquid from the liquid discharge conduit flows. The first wiring board is between the head and the radiator, and has a connector connected to a wiring extending through an interior of the radiator. The second wiring board is disposed between the head main body and the first wiring board, and includes, thereon, a driving control element configured to control liquid discharge from the discharge holes. The heat conductive member extends between the head and the radiator, and is in thermal contact with the radiator.
Abstract:
A liquid ejection head has a base plate with an actuator on an upper surface. Pressure chambers are formed in the actuator. A first common chamber connects to a first side of the pressure chambers, and a second common chamber connects to a second side. A nozzle plate is on an upper surface side of the actuator and has nozzles at positions corresponding to the pressure chambers. A supply hole is in the base plate and connected to the first common chamber. A discharge hole is in the base plate and connected to the second common chamber. A manifold is on a lower surface of the base plate. The manifold has a supply flow path for supplying liquid to the supply hole, a discharge flow path for receiving liquid from the discharge hole, and a temperature control flow path through which a temperature control liquid can flow.
Abstract:
An ink jet head includes a head body, a plurality of pipes, a plurality of flexible substrates, a reference plate, a plate base, a plurality of in-covers, and a plurality of side covers. Each of the in-covers includes an inner surface having a first mating surface in contact with the plate base, and an outer surface having a second mating surface in contact with the driving circuits. Each of the side covers includes an inner surface that is thermally coupled to a respective one of the plurality of in-covers and has a third mating surface in contact with the second mating surface section of the respective one of the plurality of in-covers, and an outer surface fastened to the print wiring substrate.
Abstract:
An ink jet head includes an ejection unit including first nozzles arranged along a line, second nozzles arranged parallel to the first nozzles, a first actuator configured to cause ink to be ejected from the first nozzles, and a second actuator configured to cause ink to be ejected from the second nozzles, a first drive circuit configured to drive the first actuator, a second drive circuit configured to drive the second actuator, and a casing. The casing has a first space on a first side of the casing and a second space on a second side of the casing that is opposite to the first side. The first drive circuit is housed in the first space and the second drive circuit is housed in the second space.
Abstract:
An ink jet head includes a head body having a plurality of ejection ports disposed in a nozzle disposition direction and a fluid chamber for ink, a base portion having an ink supply channel and an ink discharge channel communicating with the fluid chamber, a drive circuit configured to drive the head body for ejection, a heat sink configured to radiate heat generated by the drive circuit, a reference plate having both end portions thereof in a plate length direction configured to be fixed to a structure member on a printer body, and a plate holder that has a thermal conductivity lower than a thermal conductivity of the reference plate, positions the head body to cause the nozzle disposition direction thereof to be parallel to a main scanning direction with respect to the reference plate, and couples the heat sink and the base portion to each other.