A tape dispenser has a cutter or cutting blade that has at least two rows of teeth opposite each other relative to the cutter or cutting blade. The blade is to be installed on the tape dispenser in any of at least two orientations. By installing the blade in any of at least two orientations, at least one row of teeth will always project from the dispensing end to cut adhesive tape as it is unwound from a roll after being dispensed. This type of blade permits an easier manufacturing ability by reducing or eliminating the need to ensure proper alignment of the teeth to project outwardly from the tape dispenser housing.

A conveyance device includes a locking mechanism for an access cover. The locking mechanism includes a cooperating lever and a locking shaft attached to the cooperating lever. The locking shaft is slidable in an axial direction thereof between a locking position where the locking shaft engages in a locking groove of the access cover and a second unlocking position located lateral o the locking groove. When in the second unlocking position, the locking shaft engages with an engaged portion provided at part of a housing or at a fixed frame attached to the housing to constrain the cooperating lever against downward movement of a distal end of the cooperating lever. The locking mechanism further includes an operating member coupled to the locking shaft and including a holding portion capable of being held from outside the housing.

A sheet feeding apparatus includes: a conveying roller; a separating roller which forms a nip portion by pressing the conveying roller and separates a sheet conveyed by the conveying roller one by one in the nip portion; a moving portion configured to move a stacking portion from a first position at which a sheet stacked in the stacking portion and a feeding roller are separated from each other to a second position at which the sheet stacked in the stacking portion abuts on the feeding roller; and a cover member which is movable between a third position to cover a rotation shaft of the separating roller and a fourth position to expose the rotation shaft of the separating roller, in which the cover member placed in the fourth position moves to the third position along with movement of the stacking portion from the first position to the second position.

A belt feeding device includes an endless belt, stretching rollers including a tension roller, a bearing member supporting the tension roller, a beating support member supporting the bearing member, an urging member urging the tension roller, a supporting member supporting the bearing supporting member, and a locking member. The locking member is movable between a first position where an engagement between the locking member and one of the bearing support member and the bearing member is released and the bearing member is permitted to move so as to apply the tension to the belt, and a second position where the locking member locks the bearing member by engaging with the bearing support member and the bearing member and the bearing member is restricted to move. The bearing member, the bearing support member, the urging member, and the locking member constitute a unit to be integrally dismountable from the supporting in the second position.

A silencer is equipped with a hollow tubular portion in which a discharge flow passage is formed that communicates on one end side thereof with a discharge port of a fluid pressure device (ejector) through which a pressure fluid is discharged, a cap member attached to another end part of the tubular portion, a sound absorbing member attached to an inner wall surface of the tubular portion, and a plurality of discharge ports adapted to discharge the pressure fluid, which has passed through the discharge flow passage in an axial direction of the tubular portion, in radial directions perpendicular to the axial direction.

According to one embodiment, an image forming apparatus includes a support shaft, a connecting member, and a detachable member. The support shaft extends in a first direction. The support shaft includes a protrusion. The protrusion protrudes in a second direction orthogonal to the first direction. The connecting member is formed of an elastic material. The connecting member interposes the protrusion therebetween. The connecting member is connected to the support shaft to surround an outer periphery of the support shaft. The detachable member is detachably connected to the support shaft via the connecting member.

An image forming apparatus includes: a conveyance path that conveys a sheet; registration rollers that are arranged across the conveyance path and each comprise a nip part; a sheet locking member that locks a front end of a sheet conveyed in the conveyance path, where the sheet locking member swings between a first attitude and a second attitude, in the first attitude the sheet locking member locks the sheet on an upstream side of the nip part, and in the second attitude the sheet locking member is retracted to a downstream side of the nip part and allows the sheet to pass through the nip part; an energizer that energizes the sheet locking member to maintain the first attitude; and a hardware processor that detects deterioration of the energizer.

An automatic document feeder includes a media path to route media through the automatic document feeder, an opposing roller pair to route media along the media path, and a media tray to receive the media from the media path, the media tray to be opened, and the opposing roller pair to be disengaged when the media tray is opened.

A medium-discharging device includes: a device main body including a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; and a pressing member that is configured to be attached to and detached from to the device main body and presses the medium discharged by the medium-discharging section against the medium-receiving tray in a state in which the pressing member is attached to the device main body, in which the pressing member is configured to switch, in the state in which the pressing member is attached to the device main body, between a first state in which the pressing member comes into contact with the medium-receiving tray and a second state in which the pressing member retreats upward so as to be apart from the medium-receiving tray.

An endless belt includes a band-shaped belt main body made of a vulcanized rubber, and a coupling part that is made of a thermoplastic resin and is provided between both end parts of the belt main body, wherein the vulcanized rubber of the both end parts of the belt main body and the thermoplastic resin of the coupling part are chemically bonded to each other.