Abstract: A medium feeding device includes a medium feeding unit that feeds a medium placed in a set position, and a friction separation member that is disposed downstream of the medium feeding unit and is configured to come into contact with the underside of the medium, the friction separation member being deformable, and feed path restriction members that are arranged such that the friction separation member is located between the feed path restriction members, the contact portion of the feed path restriction member which comes into contact with the topside of the medium being located at a position lower than the upper surface of the friction separation member.

Abstract: A fuel cell has a membrane electrode assembly including an electrolyte membrane, catalyst layers disposed on both sides of the electrolyte membrane, and three or more layers of porous bodies disposed on a front surface side of the catalyst layer, a frame body surrounding an outer periphery of the electrolyte membrane, and a separator that partitions and forms a gas passage between the membrane electrode assembly and the separator. Extended portions are provided at an outer edge of a first porous body adjacent to the separator among the three layers of the porous bodies, and at an outer edge of a second porous body adjacent to the first porous body, respectively, so as to extend to be superimposed over the frame body. The extended portions of the first and second porous bodies intervene between the frame body and the separator.

Abstract: A recording apparatus includes a lower tray which is detachably mounted to an apparatus body, an upper tray provided above the lower tray, which is detachably mounted to the apparatus body, and a feeding roller capable of contacting each of a recording medium stored in the lower tray and the recording medium stored in the upper tray from above. The feeding roller is supported at an intermediate position, which is lower than a position of the feeding roller reached when the feeding roller contacts a bottom surface of the upper tray and higher than a position of the feeding roller reached when the feeding roller contacts a recording medium set as a top sheet in a state in which a maximum number of recording media are stored in the lower tray, in an unmounted state of the upper tray and the lower tray.

Abstract: A recording apparatus includes a medium cassette provided with a medium accommodation tray that has a medium accommodation unit for accommodating a medium which is transported to a recording unit, and a paper discharge tray that is disposed on the upper side of the medium accommodation tray and that receives a medium on which recording has been performed at the recording unit. The paper discharge tray has a cutout formed from an end portion of the paper discharge tray which is on a feed-out side in a transport direction of the medium accommodation unit, and the cutout exposes the medium accommodation unit.

Abstract: Provided is a fuel cell including: a membrane electrode assembly; a pair of gas diffusion layers holding the membrane electrode assembly therebetween; and a pair of separators holding the membrane electrode assembly and the pair of gas diffusion layer therebetween. The separators have ribs on surfaces facing the gas diffusion layers, the ribs forming channels which are gas flow paths. A thickness t (?m) of each of the gas diffusion layers and an area occupation ratio SC (?) of the channels on the surface facing the gas diffusion layer satisfy the relationship represented by the following formula (1): 0.9>SC?55(t?103)2/1000000+0.3??(1).

Abstract: A recording medium cassette includes a lower sheet placement unit on which a first recording medium is placed, an upper sheet placement unit on which a second recording medium is placed and configured to slide with respect to the lower sheet placement unit, and a recorded medium receiver on which the first recording medium and the second recording medium that have undergone a recording operation of a recording unit are placed. The recorded medium receiver is pivotably disposed at an end portion of the lower sheet placement unit in a feed direction. The upper sheet placement unit is pivotably disposed at the other end portion of the lower sheet placement unit in the feed direction.

Abstract: A recording apparatus includes a recording medium cassette removably attached to a casing and including a first sheet placement base on which a first recording medium is to be placed, a feed roller that delivers the first recording medium placed on the first sheet placement base in a feed direction, a recording unit that performs a recording operation on the first recording medium delivered by the feed roller, and a recorded medium receiver removably attached to the recording medium cassette at a position above the first sheet placement base in a vertical direction, and configured to receive the first recording medium discharged from the recording unit.

Abstract: A recording medium cassette includes a lower sheet placement unit on which a first recording medium is placed, an upper sheet placement unit on which a second recording medium is placed and configured to slide with respect to the lower sheet placement unit, and a recorded medium receiver on which the first recording medium and the second recording medium that have undergone a recording operation of a recording unit are placed. The recorded medium receiver is pivotably disposed at an end portion of the lower sheet placement unit in a feed direction. The upper sheet placement unit is pivotably disposed at the other end portion of the lower sheet placement unit in the feed direction.

Abstract: A recording apparatus includes a medium cassette that includes a first medium accommodation tray having a first medium accommodation portion for accommodating a medium to be transported to a recording unit, and a paper discharge tray that is placed on the medium cassette and receives a medium on which recording has been performed on the recording unit. The paper discharge tray has a close state where the paper discharge tray is overlapped on at least a part of the first medium accommodation portion of the first medium accommodation tray and receives the medium on which recording has been performed on the recording unit and an open state where the paper discharge tray is moved rotationally with respect to an end portion of the medium cassette to open the first medium accommodation portion.

Abstract: A recording apparatus includes a medium cassette provided with a medium accommodation tray that has a medium accommodation unit for accommodating a medium which is transported to a recording unit, and a paper discharge tray that is disposed on the upper side of the medium accommodation tray and that receives a medium on which recording has been performed at the recording unit. The paper discharge tray has a cutout formed from an end portion of the paper discharge tray which is on a feed-out side in a transport direction of the medium accommodation unit, and the cutout exposes the medium accommodation unit.

Abstract: A transport device includes a set section, a sheet sensor, and a feeding member. When a detection member does not retract, the sheet sensor outputs an OFF-detection signal. The feeding member is displaced between a feed position and a non-feed position on the basis of the detection signal. At the feed position, the feeding member comes in contact with the sheet set in the set section from above and feeds the sheet toward the downstream side on a transport path. At the non-feed position, the feeding member is separated upward from the feed position. A method, which detects a sheet in the transport device, includes displacing the feeding member from the non-feed position to the feed position, and detecting that the sheet does not exist in the set section when an OFF-detection signal is output from the sheet sensor while the feeding member is positioned at the feed position.

Abstract: A roller for transporting a recording medium includes an inner layer having a shaft hole through which a rotating shaft passes; and an outer layer formed outside the inner layer and brought into contact with the recording medium. At least a first end surface of the inner layer in a direction along the rotating shaft is located inside the outer layer remote from end surfaces of the outer layer in the direction along the rotating shaft.

Abstract: A medium feeding device includes a medium feeding unit that feeds a medium placed in a set position, and a friction separation member that is disposed downstream of the medium feeding unit and is configured to come into contact with the underside of the medium, the friction separation member being deformable, and feed path restriction members that are arranged such that the friction separation member is located between the feed path restriction members, the contact portion of the feed path restriction member which comes into contact with the topside of the medium being located at a position lower than the upper surface of the friction separation member.

Abstract: A transport device, which transports a sheet set in a set section toward the downstream side on a transport path, includes a restricting member. The restricting member is provided at a set position of the sheet in the set section, and is displaced to restrict the sheet moving toward the downstream side on the transport path. The restricting member includes a restricting section that comes in contact with a front end of the sheet from the downstream side on the transport path, and is rotatable about a shaft extending along the transport path so as to be displaced between a first position where the restricting section protrudes on the transport path and a second position where the restricting section retracts from the transport path.

Abstract: A recording medium transporting device includes a transporting unit that transports a recording medium; a guide member that supports and guides the recording medium in a downstream direction, the guide member being disposed downstream of the transporting unit; and a restraining unit that includes a restraining member having a restraining section, the restraining section being movable relative to the guide member. The restraining section imposes a restraint on the recording medium to prevent the recording medium from rising above the guide member at a position downstream of the transporting unit. A restriction state of the restraining member is switchable between at least two states, and the restriction state is switched so that a degree of the restraint is reduced or the restraint is removed before a trailing edge of the recording medium passes the restraining section.

Abstract: A transport device, which transports a sheet set in a set section toward the downstream side on a transport path, includes a restricting member. The restricting member is provided at a set position of the sheet in the set section, and is displaced to restrict the sheet moving toward the downstream side on the transport path. The restricting member includes a restricting section that comes in contact with a front end of the sheet from the downstream side on the transport path, and is rotatable about a shaft extending along the transport path so as to be displaced between a first position where the restricting section protrudes on the transport path and a second position where the restricting section retracts from the transport path.

Abstract: A transport device includes a set section, a sheet sensor, and a feeding member. When a detection member does not retract, the sheet sensor outputs an OFF-detection signal. The feeding member is displaced between a feed position and a non-feed position on the basis of the detection signal. At the feed position, the feeding member comes in contact with the sheet set in the set section from above and feeds the sheet toward the downstream side on a transport path. At the non-feed position, the feeding member is separated upward from the feed position. A method, which detects a sheet in the transport device, includes displacing the feeding member from the non-feed position to the feed position, and detecting that the sheet does not exist in the set section when an OFF-detection signal is output from the sheet sensor while the feeding member is positioned at the feed position.

Abstract: A printing medium feeding device includes: a driving roller having a roller circumferential surface coming in contact with a printing medium to apply a feeding force to the printing medium around a core line of a rotation shaft and rotating to feeding the printing medium downstream; a driven roller in contact with the driving roller and following the rotation thereof; a shaft supporting member supporting the rotation shaft at least at two supporting positions; and a regulation unit regulating a core position of the rotation shaft between the two supporting positions at which the rotation shaft is supported by the shaft supporting member, wherein the regulation unit has a pressing surface coming in contact with the rotation shaft from the upstream side or the downstream side of the rotation shaft, and wherein the core position of the rotation shaft at the position of the regulation unit is located by the pressing surface to be more downstream than a straight line passing through the core positions of the rotat

Abstract: A recording medium transporting device includes a transporting unit that transports a recording medium; a guide member that supports and guides the recording medium in a downstream direction, the guide member being disposed downstream of the transporting unit; and a restraining unit that includes a restraining member having a restraining section, the restraining section being movable relative to the guide member. The restraining section imposes a restraint on the recording medium to prevent the recording medium from rising above the guide member at a position downstream of the transporting unit. A restriction state of the restraining member is switchable between at least two states, and the restriction state is switched so that a degree of the restraint is reduced or the restraint is removed before a trailing edge of the recording medium passes the restraining section.

Abstract: A recording apparatus including a recording unit that performs recording on a recording medium; a transporting unit capable of transporting the recording medium; a first guide member and a second guide member disposed facing the first guide member having an section of a transport path of the recording medium disposed therebetween; and an optical sensor including a light-emitting portion and a light-receiving portion and having an optical axis that traverses the transport path of the recording medium between the first and second guide members. At least one of the light-emitting portion and the light-receiving portion projects from an outer side of the transport path towards the first guide member. The first guide member has a cutout having an opening where the light-emitting portion or the light-receiving portion is disposed. The opening is covered with a sheet member except for an area where the optical axis of the optical sensor extends.