Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.

Abstract: To optimize an arrangement route for a tube arranged between an ink tank and a carriage, when arranging the ink tank outside an ink jet printer main body. A liquid ejecting apparatus includes a liquid ejecting apparatus main body 2 ejecting a liquid onto a recording medium from a liquid ejecting head mounted on a carriage; a liquid containing body 110 arranged inside the liquid ejecting apparatus main body 2; and a liquid supply tube 120 arranged between the liquid containing body 110 and the carriage, in which an inner space S is provided which is formed from the liquid ejecting head and a discharge port including a region where the recording medium is discharged, and the liquid containing body 110 is arranged in the inner space S.

Abstract: To optimize an arrangement route for a tube arranged between an ink tank and a carriage, when arranging the ink tank outside an ink jet printer main body. A liquid ejecting apparatus includes a liquid ejecting apparatus main body 2 ejecting a liquid onto a recording medium from a liquid ejecting head mounted on a carriage; a liquid containing body 110 arranged inside the liquid ejecting apparatus main body 2; and a liquid supply tube 120 arranged between the liquid containing body 110 and the carriage, in which an inner space S is provided which is formed from the liquid ejecting head and a discharge port including a region where the recording medium is discharged, and the liquid containing body 110 is arranged in the inner space S.

Abstract: A control system includes: first and second hydraulic pumps; an opening/closing device provided in a passage connecting the first and second hydraulic pumps and configured to open and close the passage; a control device controlling the opening/closing device to switch between connected and unconnected states of the first and second hydraulic pumps; a first hydraulic cylinder to which hydraulic fluid from the first hydraulic pump is supplied in the unconnected state; and a second hydraulic cylinder to which hydraulic fluid from the second hydraulic pump is supplied in the unconnected state. The control device controls the opening/closing device to be in the connected state when distributed flow rates of the hydraulic cylinders are a predetermined supply flow rate or lower and a difference between a pressure in a rod-side space and a pressure in a cap-side space of the hydraulic cylinder is a defined value or smaller.

Abstract: A hydraulic driving system includes a hydraulic cylinder with a cylinder tube and a cylinder rod, a main pump, a hydraulic-fluid path, a charge pump, a stroke position detecting unit, and a pump control unit. The hydraulic-fluid path forms a closed circuit between a main pump and the hydraulic cylinder. The cylinder rod expands or contracts depending on how hydraulic fluid is supplied and exhausted to and from first and second chambers. The charge pump replenishes hydraulic-fluid in the hydraulic-fluid path. The pump control unit performs flow-rate reduction control in which the pump control unit reduces a suction flow rate so that a suction flow rate of the main pump is equal to or less than a maximum discharge flow rate of the charge pump when the stroke position becomes closer to a stroke end of the cylinder rod than a prescribed reference position during the flow rate reduction control.

Abstract: An operating state determining unit determines whether a hydraulic cylinder is in operation or not in operation. A discharge pressure reducing unit reduces the discharge pressure of a charge pump. A discharge pressure control unit controls the discharge pressure reducing unit when the hydraulic cylinder in not in operation to reduce the discharge pressure of the charge pump to a low pressure lower than a normal pressure. The normal pressure is the discharge pressure of the charge pump when the hydraulic cylinder is in operation. An accumulator is connected to a charge flowpath. A one-way valve is disposed between the accumulator and the charge pump. The one-way valve allows the flow of hydraulic fluid from the charge pump to the accumulator and prohibits the flow of hydraulic fluid from the accumulator to the charge pump.

Abstract: A recording apparatus includes a base housing and an upper housing. The base housing has a surrounding wall portion and a bottom wall portion that are formed integrally. A recording head, which performs recording on a medium, is mounted in the inner space of the base housing. The upper housing such as a scanning apparatus is provided over the base housing and has a function of closing the inner space of the base housing. The recording apparatus further includes a part attachment unit and a main board. The part attachment unit is detachably attached to the base housing in the inner space of the base housing. The main board is fixed to the part attachment unit and controls operation of at least the recording head.

Abstract: To optimize an arrangement route for a tube arranged between an ink tank and a carriage, when arranging the ink tank outside an ink jet printer main body. A liquid ejecting apparatus includes a liquid ejecting apparatus main body 2 ejecting a liquid onto a recording medium from a liquid ejecting head mounted on a carriage; a liquid containing body 110 arranged inside the liquid ejecting apparatus main body 2; and a liquid supply tube 120 arranged between the liquid containing body 110 and the carriage, in which an inner space S is provided which is formed from the liquid ejecting head and a discharge port including a region where the recording medium is discharged, and the liquid containing body 110 is arranged in the inner space S.

Abstract: In a hydraulic excavator, a hydraulic cylinder drives a boom via a hydraulic fluid discharged from a first hydraulic pump. A first hydraulic circuit connects the first hydraulic pump and the hydraulic cylinder and forms a closed circuit therebetween. A hydraulic motor rotates a revolving upper unit with hydraulic fluid discharged from a second hydraulic pump. A second hydraulic circuit independent from the first hydraulic circuit connects the second hydraulic pump and the hydraulic motor. A motor hydraulic pressure reduction unit reduces the driving hydraulic pressure of the hydraulic motor when a predetermined condition is satisfied. The predetermined condition is a condition in which an operation of the boom operating member to raise the boom and an operation of the rotation operating member to rotate the revolving upper unit are conducted together and an operation amount of the boom operating member is equal to or greater than a predetermined threshold.

Abstract: Provided is a recording apparatus allowing for a reduction in size of an ink jet recording apparatus. An ink jet recording apparatus includes a head unit that has a recording head which ejects ink and a relay adapter which relays an ink accommodating portion where ink is accommodated with the recording head, and is movable in a scanning direction of the recording head, and an ink tube that is connected to the relay adapter, guides ink which is sent from the ink accommodating portion to the relay adapter, and has flexibility, in which a height difference is formed in an upper portion of an adapter accommodating portion, where the relay adapter is accommodated, of the head unit, and the ink tube extends outside the head unit by using a space between a high position and a low position of the adapter accommodating portion.

Abstract: A liquid containing body 110 arranged inside the liquid ejecting apparatus main body 2; and a liquid supply tube 120 arranged between the liquid containing body 110 and the carriage, in which an inner space S is provided which is formed from the liquid ejecting head and a discharge port including a region where the recording medium is discharged, and the liquid containing body 110 is arranged in the inner space S.

Abstract: An arrangement path of a tube arranged between an ink tank and a carriage is optimized in a case where the ink tank is arranged in an outer portion or the like of an ink jet printer main body. A liquid ejecting apparatus 1 includes a liquid ejecting apparatus main body 2 that ejects a liquid from a liquid ejecting head which is mounted on a carriage, a liquid accommodating body 110 that is arranged in an external area or the like of the liquid ejecting apparatus main body 2, and liquid supply tubes 120 that are arranged between the liquid accommodating body 110 and the carriage. The liquid ejecting apparatus further includes a paper discharge frame that is arranged along a scanning direction of the liquid ejecting head on a further forward side than the liquid ejecting head. A part of the liquid supply tubes 120 is fixed to a frame member paper discharge frame.

Abstract: A recording apparatus includes a base housing and an upper housing. The base housing has a surrounding wall portion and a bottom wall portion that are formed integrally. A recording head, which performs recording on a medium, is mounted in the inner space of the base housing. The upper housing such as a scanning apparatus is provided over the base housing and has a function of closing the inner space of the base housing. The recording apparatus further includes a part attachment unit and a main board. The part attachment unit is detachably attached to the base housing in the inner space of the base housing. The main board is fixed to the part attachment unit and controls operation of at least the recording head.

Abstract: To optimize an arrangement route for a tube arranged between an ink tank and a carriage, when arranging the ink tank outside an ink jet printer main body. A liquid ejecting apparatus includes a liquid ejecting apparatus main body 2 ejecting a liquid onto a recording medium from a liquid ejecting head mounted on a carriage; a liquid containing body 110 arranged inside the liquid ejecting apparatus main body 2; and a liquid supply tube 120 arranged between the liquid containing body 110 and the carriage, in which an inner space S is provided which is formed from the liquid ejecting head and a discharge port including a region where the recording medium is discharged, and the liquid containing body 110 is arranged in the inner space S.

Abstract: An arrangement path of a tube arranged between an ink tank and a carriage is optimized in a case where the ink tank is arranged in an outer portion or the like of an ink jet printer main body. A liquid ejecting apparatus 1 includes a liquid ejecting apparatus main body 2 that ejects a liquid from a liquid ejecting head which is mounted on a carriage, a liquid accommodating body 110 that is arranged in an external area or the like of the liquid ejecting apparatus main body 2, and liquid supply tubes 120 that are arranged between the liquid accommodating body 110 and the carriage. The liquid ejecting apparatus further includes a paper discharge frame that is arranged along a scanning direction of the liquid ejecting head on a further forward side than the liquid ejecting head. A part of the liquid supply tubes 120 is fixed to a frame member paper discharge frame.

Abstract: Provided is a recording apparatus allowing for a reduction in size of an ink jet recording apparatus. An ink jet recording apparatus includes a head unit that has a recording head which ejects ink and a relay adapter which relays an ink accommodating portion where ink is accommodated with the recording head, and is movable in a scanning direction of the recording head, and an ink tube that is connected to the relay adapter, guides ink which is sent from the ink accommodating portion to the relay adapter, and has flexibility, in which a height difference is formed in an upper portion of an adapter accommodating portion, where the relay adapter is accommodated, of the head unit, and the ink tube extends outside the head unit by using a space between a high position and a low position of the adapter accommodating portion.

Abstract: An operating state determining unit determines whether a hydraulic cylinder is in operation or not in operation. A discharge pressure reducing unit reduces the discharge pressure of a charge pump. A discharge pressure control unit controls the discharge pressure reducing unit when the hydraulic cylinder in not in operation to reduce the discharge pressure of the charge pump to a low pressure lower than a normal pressure. The normal pressure is the discharge pressure of the charge pump when the hydraulic cylinder is in operation. An accumulator is connected to a charge flowpath. A one-way valve is disposed between the accumulator and the charge pump. The one-way valve allows the flow of hydraulic fluid from the charge pump to the accumulator and prohibits the flow of hydraulic fluid from the accumulator to the charge pump.

Abstract: An ink jet recording apparatus includes a head unit, a discharge port including a region where a recording medium on which a recording is performed by the recording head is discharged and an ink tube having flexibility, that is connected to the head unit and leads the ink from an ink containing unit. The ink tube protrudes to the outside of the apparatus from discharge port side of the front surface.

Abstract: A recording apparatus includes a paper supply tray 31 that is provided on an upstream side of a transport direction in which recording paper P is transported, and which can feed the recording paper P from a first aperture portion 21 provided in a housing 20, a guide member 33, which is provided in the paper supply tray 31 wall surface portion 21a of the housing 20, and an ink tube 50 that passes through gap sections S1 and S2 between the guide member 33 and the wall surface portion and supplies ink from an ink accommodation portion 60 which is provided outside the housing 20 to a recording head 43 that is attached to a carriage 41.