Abstract: A piston compressor may prevent excessive oil from accumulating in a crank chamber while securing the supply of oil to a swash plate. In a piston compressor in which an oil separation passage is formed in a shaft and a crank chamber communicates with a suction chamber through the oil separation passage, a supply passage opens at a region of a cylinder block opposed to a swash plate to allow a working fluid introduced from a discharge chamber into the crank chamber to be supplied to the swash plate and a bypass passage allowing the crank chamber to constantly communicate with the suction chamber is provided to prevent the accumulation of excessive oil in the crank chamber regardless of the operation condition. The bypass passage communicates with the crank chamber at a region positioned in the outer side of a rotation trajectory of the swash plate in the radial direction.

Abstract: An image processing apparatus includes: a processing unit that executes a process related to an image; an acquisition unit that acquires a first key and a second key including a restriction condition; a transition unit that transitions from a first operation mode to a second operation mode when the first key is acquired; a counting unit that counts usage of the processing unit; and a restricting unit that restricts execution of the process by the processing unit in the second operation mode according to a relationship between the counted usage and the restriction condition included in the acquired second key.

Abstract: An information processing system includes at least one information processor constituting a group and a management apparatus that manages a help information group. The information processor includes a periodical notifier that periodically notifies the management apparatus of management information, a memory that stores help information provided from the management apparatus, and a presenting unit. If requested help information does not exist in the memory but exists in a second information processor included in the group, the presenting unit acquires the help information from the second information processor and presents it. If the help information does not exist in any information processor within the group, the presenting unit acquires the help information from the management apparatus and presents it.

Abstract: To provide a piston compressor capable of preventing excessive oil from accumulating in a crank chamber in any operation state while securing the supply of oil to a swash plate. In a piston compressor in which an oil separation passage (43) is formed in a shaft (7) and a crank chamber (2) communicates with a suction chamber (31) through the oil separation passage (43), a supply passage (40) opens at a region of a cylinder block (1) opposed to a swash plate (18) to thereby allow a working fluid introduced from a discharge chamber (32) into the crank chamber (2) to be supplied to the swash plate (18) and a bypass passage (50) allowing the crank chamber (2) to constantly communicate with the suction chamber (31) is provided to thereby prevent the accumulation of excessive oil in the crank chamber (2) regardless of the operation condition.

Abstract: An information processing apparatus includes an acquisition unit and a help controller. The acquisition unit acquires information indicating whether help information is stored in any of information processing apparatuses within the same group as the information processing apparatus. The help controller performs control based on the information acquired by the acquisition unit so as to cause an information processing apparatus within the group to acquire the help information from an external help management apparatus if the help information is not stored in any of the information processing apparatuses within the group or to cause an information processing apparatus within the group to acquire the help information from another information processing apparatus storing the help information in the group if the help information is stored in any of the information processing apparatuses within the group.

Abstract: A fixing device includes: a fixing roll that is rotatable; a belt member that is stretched over the fixing roll; a pressurizing roll that pressurizes the fixing roll via the belt member; a belt pressing member that presses an outer surface of the belt member to the pressurizing roll from inside of the belt member on a downstream side at a pressure-contact position between the fixing roll and the pressurizing roll; and a controller that decrease a time difference between a passage time per unit area of a tip region of a recording medium and a passage time per unit area of a succeeding region of the recording medium to pass a pressure-contact portion between the fixing roll and belt pressing member and the pressurizing roll.

Abstract: A fixing device includes: a belt member provided to be circularly movable having a width; a first fixing member disposed inside the belt member; a second fixing member disposed in press contact with the first fixing member across the belt member, and forms a passing portion with the belt member, through which a recording medium passes; and a pressing member disposed along a width direction of the belt member and downstream of the passing portion in a moving direction of the belt member, in which the pressing member has a surface and brings the surface in contact with an inner peripheral surface of the belt member to press the belt member against the second fixing member. The surface is curved toward the second fixing member along with a move from an end portion to a center portion in a longitudinal direction of the pressing member.

Abstract: A fixing device includes: a belt member provided to be circularly movable having a width; a first fixing member disposed inside the belt member; a second fixing member disposed in press contact with the first fixing member across the belt member, and forms a passing portion with the belt member, through which a recording medium passes; and a pressing member disposed along a width direction of the belt member and downstream of the passing portion in a moving direction of the belt member, in which the pressing member has a surface and brings the surface in contact with an inner peripheral surface of the belt member to press the belt member against the second fixing member. The surface is curved toward the second fixing member along with a move from an end portion to a center portion in a longitudinal direction of the pressing member.

Abstract: A fixing device includes: a fixing roll that is rotatable; a belt member that is stretched over the fixing roll; a pressurizing roll that pressurizes the fixing roll via the belt member; a belt pressing member that presses an outer surface of the belt member to the pressurizing roll from inside of the belt member on a downstream side at a pressure-contact position between the fixing roll and the pressurizing roll; and a controller that decrease a time difference between a passage time per unit area of a tip region of a recording medium and a passage time per unit area of a succeeding region of the recording medium to pass a pressure-contact portion between the fixing roll and belt pressing member and the pressurizing roll.

Abstract: A cleaning device removes a toner attached to an image carrier of an electrophotographic-type image forming apparatus. The cleaning device includes a cleaning blade, a housing and a block member. The cleaning blade is in contact with a surface of the image carrier to removes the toner. The housing stores the toner removed by the cleaning blade. The block member causes the toner to temporarily remain the toner in a vicinity of a distal end of the cleaning blade. The block member is formed of a sheet-shaped elastic member. One side of the block member is fixed to the housing. A repulsive force against bending in an end portion of the block member in a longitudinal direction is substantially smaller than a repulsive force against bending in a center portion of the block member.

Abstract: The present invention provides an image forming device. The image forming device includes a photosensitive body, a charging roller, a cleaning member, and a controller. The charging roller, while rotating in a first direction, charges the photosensitive body for image formation. The cleaning member, formed by an elastic body, contacts the charging roller and cleans the charging roller. The controller, when the charging roller is not carrying out charging of the photosensitive body for image formation, rotates the charging roller in a direction opposite to the first direction.

Abstract: A cleaning device includes a cleaning roller, a supporting portion and a guiding portion. The cleaning roller has a core and a cleaning member provided around the core, the cleaning member contacting and cleaning a charging roller by rotation of the cleaning roller, the charging roller charging an image carrier carrying an image. The supporting portion supports the core rotatably in a state in which the cleaning member is in contact with the charging roller. The guiding portion movably guides the core, which is supported by the supporting portion, in a direction different from a direction of a straight line passing through a rotational center of the charging roller and a rotational center of the cleaning roller.

Abstract: A proximity sensor 717 comprising a combination of an arbitrarily selected one of a plurality of types of detection end modules 707, a plurality of types of output circuit modules 709 and a plurality of types of outer shell cases 711. The detection end module 707 includes an integrated arrangement having a detection coil assembly (705, 701, 702) with the detection characteristic self-completed by a mask conductor 700 for reducing the conductor detection sensitivity in a specific peripheral area where the outer shell case is assumed to exist, and a detection circuit assembly (703) with the coil of the detection coil assembly as a resonance circuit element. The characteristics of the proximity sensor are completely adjusted before shipment. As a result, the adjustment of the characteristics which otherwise might be required each time is eliminated even in the case of the combination with an outer shell case of a different material.

Abstract: A roll includes a shaft, and a foamed material coating the shaft that includes a first section that extends from the shaft to a surface of the foamed material and has electrical resistance, a value of which is within a first range, and a second section that extends from the shaft to the surface of the foamed material and has electrical resistance, a value of which is within a second range different from the first range.

Abstract: A cleaning device includes a cleaning roller, a supporting portion and a guiding portion. The cleaning roller has a core and a cleaning member provided around the core, the cleaning member contacting and cleaning a charging roller by rotation of the cleaning roller, the charging roller charging an image carrier carrying an image. The supporting portion supports the core rotatably in a state in which the cleaning member is in contact with the charging roller. The guiding portion movably guides the core, which is supported by the supporting portion, in a direction different from a direction of a straight line passing through a rotational center of the charging roller and a rotational center of the cleaning roller.

Abstract: A cleaning device removes a toner attached to an image carrier of an electrophotographic-type image forming apparatus. The cleaning device includes a cleaning blade, a housing and a block member. The cleaning blade is in contact with a surface of the image carrier to removes the toner. The housing stores the toner removed by the cleaning blade. The block member causes the toner to temporarily remain the toner in a vicinity of a distal end of the cleaning blade. The block member is formed of a sheet-shaped elastic member. One side of the block member is fixed to the housing. A repulsive force against bending in an end portion of the block member in a longitudinal direction is substantially smaller than a repulsive force against bending in a center portion of the block member.

Abstract: The present invention provides an image forming device. The image forming device includes a photosensitive body, a charging roller, a cleaning member, and a controller. The charging roller, while rotating in a first direction, charges the photosensitive body for image formation. The cleaning member, formed by an elastic body, contacts the charging roller and cleans the charging roller. The controller, when the charging roller is not carrying out charging of the photosensitive body for image formation, rotates the charging roller in a direction opposite to the first direction.

Abstract: A proximity sensor 717 comprising a combination of an arbitrarily selected one of a plurality of types of detection end modules 707, a plurality of types of output circuit modules 709 and a plurality of types of outer shell cases 711. The detection end module 707 includes an integrated arrangement having a detection coil assembly 705, 701, 702) with the detection characteristic self-completed by a mask conductor 700 for reducing the conductor detection sensitivity in a specific peripheral area where the outer shell case is assumed to exist, and a detection circuit assembly (703) with the coil of the detection coil assembly as a resonance circuit element. The characteristics of the proximity sensor are completely adjusted before shipment. As a result, the adjustment of the characteristics which otherwise might be required each time is eliminated even in the case of the combination with an outer shell case of a different material.