Abstract: An inkjet printing apparatus performs printing on a printing medium by feeding ink to an inkjet head having a plurality of nozzles and dispensing the ink from the inkjet head to the printing medium. The apparatus includes a tank, a supply pipe communicatively connecting the tank and the inkjet head, a pump for feeding the ink stored in the tank to the inkjet head, a filter disposed on a path of the supply pipe, and a controller for operates the pump and controlling feeding of the ink. The controller operates the pump to engage in forward drive in time of printing operation, and operates the pump to engage in backward drive in time of functional recovery operation.

Abstract: An inkjet printing apparatus performs printing on a printing medium by feeding ink to an inkjet head having a plurality of nozzles and dispensing the ink from the inkjet head to the printing medium. The apparatus includes a tank, a supply pipe communicatively connecting the tank and the inkjet head, a pump for feeding the ink stored in the tank to the inkjet head, a filter disposed on a path of the supply pipe, and a controller for operates the pump and controlling feeding of the ink. The controller operates the pump to engage in forward drive in time of printing operation, and operates the pump to engage in backward drive in time of functional recovery operation.

Abstract: An electric motor equipped with deceleration device (1) is provided with a main shaft component (200) that is formed substantially in a circular rod shape, and has one end portion (201) that is rotatably supported at a substantial center of a bottom portion (111) of a motor housing (110) and another end portion (202) that protrudes towards an outer side through an aperture in the motor housing (110), the main shaft component (200) is fixed to the motor housing (110) via the one end portion (201).

Abstract: A sub-tank is pressurized by a pump, with head valves closed. Then, one of the head valves is opened to perform a first purge on a first head. After the one head valve is closed, a different one of the head valves is opened to perform a second purge on a second head different from the first head. After these purges, an open-to-atmosphere valve is opened, with the head valves closed, to decrease the pressures inside the heads which are increased by the purges. This allows a selective purge on only a head which requires a purge. As a result, the amount of ink forced out is suppressed during the pressurized purges. After the sub-tank is made open to the atmosphere, a depressurizing pump depressurizes the sub-tank to form ink menisci in the heads. This prevents air bubbles from being drawn into nozzles during the formation of the ink menisci in the nozzles after the purges.

Abstract: A sub-tank is pressurized by a pump, with head valves closed. Then, one of the head valves is opened to perform a first purge on a first head. After the one head valve is closed, a different one of the head valves is opened to perform a second purge on a second head different from the first head. After these purges, an open-to-atmosphere valve is opened, with the head valves closed, to decrease the pressures inside the heads which are increased by the purges. This allows a selective purge on only a head which requires a purge. As a result, the amount of ink forced out is suppressed during the pressurized purges. After the sub-tank is made open to the atmosphere, a depressurizing pump depressurizes the sub-tank to form ink menisci in the heads. This prevents air bubbles from being drawn into nozzles during the formation of the ink menisci in the nozzles after the purges.

Abstract: An electric motor equipped with deceleration device (1) is provided with a main shaft component (200) that is formed substantially in a circular rod shape, and has one end portion (201) that is rotatably supported at a substantial center of a bottom portion (111) of a motor housing (110) and another end portion (202) that protrudes towards an outer side through an aperture in the motor housing (110), the main shaft component (200) is fixed to the motor housing (110) via the one end portion (201).

Abstract: In a bed (home care equipment) 1, based on the switch operation, respective drive units of a head unit 12, a leg unit 13, and a height adjustment unit 14 are actuated by motor units 15a to 15c and actuator units 16a to 16c. The actuation state of the respective drive units are detected by the sensor units 17a to 17c, and a respective-unit-operation control means 21 figures out the actuation state of the drive units based on a detection signal, and stores the performance history of the drive units in the operation history storage unit 22 as operation history information. The operation history information in the operation history storage unit 22 is transmitted to a host computer 4 by a communication unit 7. The host computer 4 processes the received operation history information to data which can be displayed by the animation display, graph display, and accumulated time period display, and transmits thus processed data to a computer 5 etc. which is connected to the host computer 4 through the Internet line.

Abstract: An electronic part capable of preventing a flux from intruding thereinto without using a sealing material can be provided. In the electronic part 1, terminals 3 to be inserted through electrode holes of a circuit board are projected from a casing 1a. In the terminals 3, there are provided cut-in portions 8 extending to a space formed between the casing 1a and the circuit board when the terminals 3 are inserted through the electrode holes.

Abstract: An improved printed circuit board which can reduce or eliminate unsatisfactory soldering caused by trapped gas in surface mounting electronic components by flow soldering is disclosed. According to the invention, the printed circuit board comprises an electrically conductive pattern having a plurality of connection pads to which leads of electronic components are to be connected; and a solder resist layer formed over said electrically conductive pattern and having a plurality of windows which expose said connection pads, wherein at least one of said windows has an extension exposing an additional part of said pad, said extension being substantially narrower than said window. The extension allows the additionally exposed part of the pad to contact with the solder even when the associated pad is almost entirely covered by the trapped gas, so that the solder is pulled to the pad and spread over the pad.

Abstract: A spring system for applying an elastic restoring force to a moveable member undergoing a reciprocating movement. This spring system includes a coil spring made of steel and having a moveable end engaged to a moveable member and a fixed end engaged to a fixed member. The moveable end is formed as an open end. A spring seat member is interposed between the moveable end of the coil spring and the moveable member. The spring seat member has a receiving surface contoured to snugly receive the moveable end of the coil spring.

Abstract: A spring system for applying a restoring force to a reciprocating member such as an exhaust or intake valve of an internal combustion engine, comprising: a helical spring having open ends and consisting of titanium or an alloy thereof; and a spring seat supporting one of the two ends of the helical spring. Since this helical spring is provided with open ends, mutual striking of the coil wire can be avoided and, thereby, the durability of the helical spring can be ensured in addition to the advantage obtained from the low-mass and high transverse elastic modulus of titanium or its alloy.

Abstract: A spring balancer having a compression coil spring and a friction ring. Properties of the spring and a friction force provided by the ring are designed to fit the moment of revolution of a lid that can be opened or closed upward and downward around a revolution or pivot axis. The balancer makes it possible to open or close the lid with a small force and allows stopping of the lid at any position in the whole process of the opening or the closing.