Abstract: A lock device includes a lock cover, a restricting portion, a drive source, a biasing portion, and a pressing portion. The lock cover is opened and closed when a developer storing portion storing developer is attached or detached. The restricting portion, when the lock cover is closed, is engaged with the lock cover in such a way as to restrict the lock cover from being opened. The drive source drives the restricting portion in such a way as to release an engagement between the restricting portion and the lock cover. The biasing portion biases the restricting portion in a direction opposite to a direction in which the drive source drives the restricting portion. The pressing portion presses the lock cover in an opening direction in conjunction with an operation of the drive source to release the engagement between the restricting portion and the lock cover.

Abstract: A biasing portion biases a restricting portion in a direction opposite to a direction in which a drive source drives the restricting portion. Each of a lock cover and the restricting portion includes an engaging portion that has a contact surface, and when the lock cover is closed, the contact surfaces of the lock cover and the restricting portion are engaged with each other while facing each other. The contact surfaces of the lock cover and the restricting portion are not parallel to each other in a state where the lock cover is closed, and as the lock cover is displaced in an opening direction of the lock cover when the drive source is not driving the restricting portion, one or both of the engaging portions are bent and the contact surfaces become parallel to each other.

Abstract: A printing device including: a first conveyance path and a second conveyance path configured to conveying print media; a skew correction unit configured to correct skewing of the print medium conveyed along the first conveyance path; and a print unit configured to print on the print medium conveyed on the first conveyance path or the second conveyance path; the first conveyance path and the second conveyance path merging downstream of the skew correction unit; print media conveyed from the second conveyance path.

Abstract: A fixing apparatus includes: a heating member that has an outer circumferential surface to be driven in a circulative manner and heats a sheet; a heat radiation suppression member that covers a part of an outer circumferential surface of the heating member to have a predetermined gap and suppresses heat radiation, wherein the heat radiation suppression member has a movable part capable of moving to a first position and a second position more distant than the first position from a part covered by the heating member; a moving unit that moves the movable part to the first position or the second position; a jam detection unit that detects a jam of a sheet in the vicinity of the downstream side end portion of the nip part; and a control unit that controls the moving unit such that the movable part is moved from the first position to the second position.

Abstract: An image forming apparatus includes an inner cover, an outer cover, a first pressing portion, and a restricting portion. The inner cover is opened and closed for a developer storage portion storing developer to be attached or detached. The outer cover is made of resin and provided on an outer side of the inner cover, and opened and closed in a same direction as the inner cover. The first pressing portion is provided on the outer cover and, when the outer cover is closed in a state where the inner cover is opened, comes into contact with and presses the inner cover in a closing direction. When the inner cover is closed, the restricting portion is engaged with the inner cover at a lock position located on an upstream side of a predetermined closing position of the inner cover in the closing direction, and restricts opening of the inner cover.

Abstract: According to one embodiment, a semiconductor device includes a semiconductor substrate including an element region, a guard ring provided on an outer periphery of the element region and including a first interconnect and a first plug which electrically couples the first-interconnect and a first well region, a second interconnect provided above the first interconnect via a first insulating layer and non-electrically coupling to the first interconnect, and a first circuit coupled to the second interconnect. The first circuit detects one of a crack and a peeling of the guard ring in accordance with a break in the second interconnect or a short circuit between the second interconnect and the first interconnect.

Abstract: A fixing device includes a fixing roller heated to a predetermined temperature by a heater; a pressure belt in pressure contact with the fixing roller; and a pressing part which presses the pressure belt toward the fixing roller. The fixing device adopts a belt-nip system and fixes a toner image formed on a recording medium to the recording medium by heat and pressure while the recording medium is nipped and conveyed through a nip part. The nip part is formed by the fixing roller and the pressure belt and includes an adhesion nip and a separation nip. The pressing part includes a pressing member, a sheet member which covers the pressing surface of the pressing member along a conveying direction of the recording medium, and a pressing fluid which is filled at the adhesion nip between the pressing member and the sheet member.

Abstract: A lock device includes a lock cover, a restricting portion, a drive source, a biasing portion, and a pressing portion. The lock cover is opened and closed when a developer storing portion storing developer is attached or detached. The restricting portion, when the lock cover is closed, is engaged with the lock cover in such a way as to restrict the lock cover from being opened. The drive source drives the restricting portion in such a way as to release an engagement between the restricting portion and the lock cover. The biasing portion biases the restricting portion in a direction opposite to a direction in which the drive source drives the restricting portion. The pressing portion presses the lock cover in an opening direction in conjunction with an operation of the drive source to release the engagement between the restricting portion and the lock cover.

Abstract: A biasing portion biases a restricting portion in a direction opposite to a direction in which a drive source drives the restricting portion. Each of a lock cover and the restricting portion includes an engaging portion that has a contact surface, and when the lock cover is closed, the contact surfaces of the lock cover and the restricting portion are engaged with each other while facing each other. The contact surfaces of the lock cover and the restricting portion are not parallel to each other in a state where the lock cover is closed, and as the lock cover is displaced in an opening direction of the lock cover when the drive source is not driving the restricting portion, one or both of the engaging portions are bent and the contact surfaces become parallel to each other.

Abstract: A printing apparatus includes a print section configured to perform printing on a first side of a medium and then perform printing on a second side that is a back side of the first side, a supply path configured to supply the medium toward the print section, a feeding roller configured to feed the medium along the supply path from an upstream side to a downstream side in a transport direction, a toothed roller provided on the downstream side of the feeding rollers in the transport direction, a drive source configured to rotate the feeding roller and the toothed roller, and a controller configured to control driving of the drive source. The controller performs rotation control for rotating the feed rollers prior to the rotation of the toothed roller with which the medium has collided.

Abstract: According to one embodiment, a semiconductor memory device includes: a semiconductor substrate; a first semiconductor pillar above the semiconductor substrate; a first insulating layer comprising a first section and a second section, the first section being in contact with the semiconductor substrate and a bottom of the first semiconductor pillar, and the second section covering a side of the first semiconductor pillar; conductive layers and second insulating layers stacked one by one above the semiconductor substrate and covering the second section of the first insulating layer; a first plug on the first semiconductor pillar; and an interconnect on the first plug.

Abstract: According to one embodiment, a semiconductor device includes a semiconductor substrate including an element region, a guard ring provided on an outer periphery of the element region and including a first interconnect and a first plug which electrically couples the first-interconnect and a first well region, a second interconnect provided above the first interconnect via a first insulating layer and non-electrically coupling to the first interconnect, and a first circuit coupled to the second interconnect. The first circuit detects one of a crack and a peeling of the guard ring in accordance with a break in the second interconnect or a short circuit between the second interconnect and the first interconnect.

Abstract: An opening/closing detection mechanism has a multifunctional peripheral body portion, a front cover, a side cover, and an interlock mechanism. The interlock mechanism contains a switch, a plate-like portion, a bulged portion, and a rocking mechanism. The bulged portion is provided on the side cover. When the side cover is in the closed state, the bulged portion abuts on a rear region located on the side opposite to the front cover with respect to a region where a projection portion is provided of the switch. The rocking mechanism rocks the switch in the opening/closing direction of the front cover according to the opened/closed state of the side cover.

Abstract: A printing apparatus includes a transport portion that transports a medium, a printing head that performs printing on the medium, a medium detection device that is arranged upstream of the printing head in a transport direction of the medium and detects a side edge of the medium in a width direction intersecting with the transport direction, and a control unit that controls the transport portion, the printing head, and the medium detection device.

Abstract: A fixing apparatus includes: a heating member that has an outer circumferential surface to be driven in a circulative manner and heats a sheet; a heat radiation suppression member that covers a part of an outer circumferential surface of the heating member to have a predetermined gap and suppresses heat radiation, wherein the heat radiation suppression member has a movable part capable of moving to a first position and a second position more distant than the first position from a part covered by the heating member; a moving unit that moves the movable part to the first position or the second position; a jam detection unit that detects a jam of a sheet in the vicinity of the downstream side end portion of the nip part; and a control unit that controls the moving unit such that the movable part is moved from the first position to the second position.

Abstract: An image forming apparatus includes a front cover and a maintenance cover. The front cover has a support section, an interference section, and a projection. The support section is supported by a housing of the image forming apparatus so as to be pivotable about a pivot axis. The interference section extends rearward from an edge of the front cover. The projection is located on a contact surface that comes in or out of contact with a specific section of the maintenance cover as the front cover is closed or opened with the maintenance cover in a closed state. The specific section of the maintenance cover has a hole. The projection fits in the hole.

Abstract: A semiconductor memory device includes a first portion including a semiconductor element, a second portion surrounding the semiconductor element. The second portion includes a stack of conductive layers and insulating layers, and at least one groove through the conductive layers and the insulating layers.

Abstract: A printing device including: a first conveyance path and a second conveyance path configured to conveying print media; a skew correction unit configured to correct skewing of the print medium conveyed along the first conveyance path; and a print unit configured to print on the print medium conveyed on the first conveyance path or the second conveyance path; the first conveyance path and the second conveyance path merging downstream of the skew correction unit; print media conveyed from the second conveyance path.

Abstract: A fixing apparatus includes the following. A heating unit includes an outer surface driven to rotate and heats a sheet on which color material is transferred. A reflecting unit reflects heat emitted from the heating unit. The reflecting unit further includes, a covering unit which covers at least a portion of the outer surface of the heating unit so that there is a predetermined space; and a movable unit which is provided in the covering unit and which can be switched between a first position and a second position in which air in the space can flow more easily than the first position. The fixing apparatus also includes, a switching unit which switches the movable unit between the first position and the second position; and a controller which controls the switching unit.

Abstract: An object of the present invention is to provide a roller bearing cage suited in particular to a supersized roller bearing, wherein the cage (1A) is configured such that a pair of ring parts (4 and 6) axially separated is connected by a plurality of column parts (5) sliding on an outer peripheral surfaces of rollers (RA), and a plurality of pocket holes (P) is evenly formed in a circumferential direction to store and hold the rollers (RA) at a peripheral wall portion, wherein a base body (2) including one ring part (4) and the column parts (5) with engagement convexes (5A) at leading ends thereof and a connection body (3) including the other ring part (6) with engagement concaves (6A) for engagement with the engagement convexes (5A) of the column parts (5) are set as separate members.