Abstract: An electronic device includes a first member with a first obverse surface, an electronic element on the first member, a connecting member connected to the electronic element, a second member with a second reverse surface, and a sealing resin covering the first member, the second member, the electronic element, and the connecting member. The second member includes a terminal portion and a connecting portion connected to the connecting member. The first obverse surface includes a first flat portion and a first projecting portion. The first projecting portion projects to the first side in the thickness direction relative to the first flat portion. The second reverse surface includes a second flat portion and a second projecting portion. The second projecting portion projects to the second side in the thickness direction relative to the second flat portion.

Abstract: An optical scanning device includes a polygon mirror, a mirror cover, and a position sensing portion. The polygon mirror rotates about a rotation axis extending along the top-bottom direction to reflect laser light and scans the circumferential surface of an image carrying member along a main scanning direction. The mirror cover covers the polygon mirror. The position sensing portion senses the rotation position of the polygon mirror. The mirror cover has an opening part. The opening part penetrates, along the radial direction, part of a circumferential wall part covering the polygon mirror from radially outward. The position sensing portion is disposed on the mirror cover with at least part of it disposed in the opening part.

Abstract: A pressure retaining member is formed by bending a metal plate. The pressure retaining member includes: a body portion supported by a housing; and two pressing portions which are connected to the body portion, can be elastically deformed, and press an optical element toward a retaining portion of the housing. One of the two pressing portions is formed with a restriction portion which restricts a depth with which the other one of the two pressing portions enters between the two pressing portions of another pressure retaining member or a depth with which the body portion of the another pressure retaining member enters between the two pressing portions.

Abstract: A plurality of two-point mirror support portions each support two positions of a mirror specific surface at an end portion of each of a plurality of mirrors on a first side of a first direction. A plurality of one-point mirror support portions each support one position of the mirror specific surface or an end surface at an end portion of each of the plurality of mirrors on a second side of the first direction. A plurality of two-point lens support portions each support two positions of a lens specific surface of each of a plurality of lenses at an end portion on the second side of the first direction. A plurality of one-point lens support portions each support one position of the lens specific surface of each of the plurality of lenses at an end portion on the first side of the first direction.

Abstract: An optical scanning device (12) includes a casing (12a), a transmissive member (52), a linear member (54), a drive portion (55), guide rails (61), a pair of cleaning holders (511), a cleaning member (53), a detecting portion (56), and a control section (90). The control section (90) controls driving of the drive portion (55). The control section (90) performs control so that, during execution of a cleaning mode, upon detection by the detecting portion (56) that one of the pair of cleaning holders (511) has reached one end of a movement path of the one of the pair of cleaning holders (511), an outward operation is started, and upon detection by the detecting portion (56) that the other of the pair of cleaning holders (511) has reached one end of a movement path of the other of the pair of cleaning holders (511), a homeward operation is started.

Abstract: A connector support structure includes a connector and a support part. The connector attached to the support part is turned so as to change a posture of the connector from the first posture to the second posture while allowing the connection port to enter the clearance space to disengage the engagement of the pair of engagement parts with the pair of protruding portions. The connector attached to the support part allows the part of the pair of engagement parts to be arranged between the pair of protruding portions and the pull-out prevention portion and then slid toward one side in the third direction to be detached from the support part.

Abstract: An optical scanner includes a scanning optical system, a housing, and a pressing and retaining member. The housing includes a retaining portion, a support portion that is formed to be opposed to the retaining portion, and an engaged portion to be engaged with an engaging portion. The pressing and retaining member includes a main body including the engaging portion and at least one pressing portion. In a first state where the engaging portion is engaged with the engaged portion, the at least one pressing portion presses the optical element toward the retaining portion. While the pressing and retaining member shifts from a second state where the engaging portion is not engaged with the engaged portion to the first state, a distal end of the at least one pressing portion passes beyond a boundary between the retaining portion and the optical element and abuts on a part of the housing.

Abstract: An optical scanning device includes a casing, a transmissive member, a linear member, a drive portion, a plurality of first guide rails, a plurality of second guide rails, at least one cleaning holder, a cleaning member, and a stopper. The casing includes a rib formed along a peripheral edge part of an upper surface of the casing and a void section formed between the rib and an end part of the first guide rails on a side of the second direction. The cleaning holder includes a first restriction portion that engages with the first guide rails in an up-down direction and a second restriction portion that is in contact with a side surface of the second guide rails.

Abstract: An optical scanner is provided with a light source, a deflector, an optical element, an imaging lens, a fixing structure, and a housing. The optical element has a reflecting surface. The fixing structure has a first support wall, a second support wall and a biasing member. The first support wall has a support projection with a tip part protruding along a thickness direction toward a rear surface and abutting on the rear surface, and an inclined surface extending from a tip part to a side opposite to the second support wall. A first angle between a first straight line extending in the perpendicular direction orthogonal to a bottom surface of the housing and a surface of the optical element is smaller than a second angle between the first straight line and the inclined surface. The second angle is less than 90 degrees.

Abstract: An optical scanning device includes a scanning optical system, a housing, and a lid member. The housing includes a groove portion depressed inward from a laterally outer side of a side wall portion and that extends in an up-down direction, and a side-wall engagement portion disposed in the groove portion. The lid member includes a suspended portion hanging down from a peripheral portion thereof, and a suspended engagement portion disposed in the suspended portion. The groove portion penetrates the side wall portion in the up-down direction as seen from the up-down direction, and, in a state where the lid member is attached to the housing, the suspended portion is located in the groove portion as a result of being inserted into the groove portion from above, with the side-wall engagement portion in engagement with the suspended engagement portion in the up-down direction.

Abstract: An optical scanning apparatus includes a light source having five or more light-emitting portions arrayed in a row, a cylindrical lens, a restricting portion, a polygon mirror, and a plurality of scanning lenses. A plurality of such light sources are provided and each emit light beams. The restricting portion has a plurality of first apertures that restrict the optical path width of the light beams along the sub scanning direction. The first apertures have first openings respectively that penetrate them along the optical axis direction and let the light beams pass through them. The centers of the first openings along the sub scanning direction are disposed displaced along the sub scanning direction.

Abstract: An optical scanning device includes a housing, a transmissive member, a linear member, a drive portion, a guide rail, a cleaning holder, a cleaning member, a detection portion, and a control portion. The detection portion includes a light emitter that emits light in a juxtaposition direction of the transmissive member and a light receiver that receives the light emitted from the light emitter. The cleaning holder includes a light blocking portion that is located, when the cleaning holder reaches one end part of a movement path thereof, between the light emitter and the light receiver so as to block the light emitted from the light emitter, with a gap formed between the light blocking portion and the housing. The housing includes a light leakage prevention portion formed between the light emitter and the light receiver.

Abstract: An optical scanning device irradiates an image carrier with laser light to form an electrostatic latent image. The optical scanning device includes a casing, a transmissive member, a wire-shaped member, a driving portion, a guide rail, a cleaning holder, a cleaning member, and a stopper. The cleaning member is fixed to the cleaning holder and cleans the transmissive member by sliding with respect to the transmissive member along with movement of the cleaning holder. The stopper is disposed on one side of the guide rail in an extending direction of the guide rail and restricts the movement of the cleaning holder. Another side of the guide rail in the extending direction of the guide rail is open in the extending direction of the guide rail.

Abstract: A semiconductor device includes a semiconductor element and a first connection member. The semiconductor element includes a substrate and an electrode pad. The substrate includes a transistor formation region, in which a transistor is formed and which is shaped to be non-quadrangular. The electrode pad is located on the transistor formation region. The first connection member is connected to the electrode pad at one location. The electrode pad is arranged to cover a center of gravity of the transistor formation region in a plan view of the electrode pad. In the plan view, a connection region in which the first connection member is connected to the electrode pad includes a center of gravity position of the transistor formation region.

Abstract: A semiconductor device includes a semiconductor element, a first lead, a sealing resin, and a first connecting member. The first lead includes a die pad portion that includes a die-pad obverse surface facing a first side in a thickness direction, and a support portion supporting the die pad portion. The semiconductor element is mounted on the die-pad obverse surface. The sealing resin covers the semiconductor element. The first connecting member is electrically connected to the support portion and electrically conductive to the semiconductor element. The support portion includes a connecting surface to which the first connecting member is electrically connected. The connecting surface and the die-pad obverse surface are different in position in the thickness direction.

Abstract: A semiconductor device includes a semiconductor element and a first connection member. The semiconductor element includes a substrate and an electrode pad. The substrate includes a transistor formation region, in which a transistor is formed and which is shaped to be non-quadrangular. The electrode pad is located on the transistor formation region. The first connection member is connected to the electrode pad at one location. The electrode pad is arranged to cover a center of gravity of the transistor formation region in a plan view of the electrode pad. In the plan view, a connection region in which the first connection member is connected to the electrode pad includes a center of gravity position of the transistor formation region.

Abstract: A plurality of two-point mirror support portions each support two positions of a mirror specific surface at an end portion of each of a plurality of mirrors on a first side of a first direction. A plurality of one-point mirror support portions each support one position of the mirror specific surface or an end surface at an end portion of each of the plurality of mirrors on a second side of the first direction. A plurality of two-point lens support portions each support two positions of a lens specific surface of each of a plurality of lenses at an end portion on the second side of the first direction. A plurality of one-point lens support portions each support one position of the lens specific surface of each of the plurality of lenses at an end portion on the first side of the first direction.

Abstract: An optical scanner includes a scanning optical system, a housing, and a pressing and retaining member. The housing includes a retaining portion, a support portion that is formed to be opposed to the retaining portion, and an engaged portion to be engaged with an engaging portion. The pressing and retaining member includes a main body including the engaging portion and at least one pressing portion. In a first state where the engaging portion is engaged with the engaged portion, the at least one pressing portion presses the optical element toward the retaining portion. While the pressing and retaining member shifts from a second state where the engaging portion is not engaged with the engaged portion to the first state, a distal end of the at least one pressing portion passes beyond a boundary between the retaining portion and the optical element and abuts on a part of the housing.

Abstract: A casing for an optical scanning device is configured to accommodate therein a scanning optical system. The casing includes a main body, a lid, a first positioning mechanism, and a second positioning mechanism. The main body includes an opening formed in an upper face. The lid closes the opening of the main body. The first positioning mechanism positions, when a plurality of the main bodies are stacked in a plurality of stages, the main body on an upper stage in a horizontal direction and a height direction, with respect to the main body on a lower stage. The second positioning mechanism positions, when a plurality of the casings, each having the lid attached thereto, are stacked in a plurality of stages, the casing on the upper stage in the horizontal direction and the height direction, with respect to the casing on the lower stage.

Abstract: A pressure retaining member is formed by bending a metal plate. The pressure retaining member includes: a body portion supported by a housing; and two pressing portions which are connected to the body portion, can be elastically deformed, and press an optical element toward a retaining portion of the housing. One of the two pressing portions is formed with a restriction portion which restricts a depth with which the other one of the two pressing portions enters between the two pressing portions of another pressure retaining member or a depth with which the body portion of the another pressure retaining member enters between the two pressing portions.