Patent classifications
B65H29/52
Sheet discharging apparatus having electrostatic charge removal and image forming apparatus
A sheet discharging apparatus includes a discharging unit to discharge a sheet such that the sheet nipped between a first roller and a second roller is warped as viewed from a downstream side in a sheet discharge direction, a sheet supporting member to support the sheet discharged by the discharging unit, and a first charge-removing portion to remove electrostatic charges of the sheet by coming into contact with the sheet at a position downstream of a position where the first roller and the second roller nip the sheet in the sheet discharge direction. In addition, a second charge-removing portion removes electrostatic charges of the sheet by coming into contact with the sheet at a position downstream of the position where the first charge-removing portion comes into contact with the sheet in the sheet discharge direction.
SHEET DISCHARGE DEVICE AND IMAGE FORMING APPARATUS
A sheet discharge device includes a discharge unit including a drive roller, to be rotated by a drive source driving force, a driven roller to be driven by the drive roller, and a static elimination unit located downstream from the discharge unit in a sheet discharge direction. The discharge unit discharges a sheet out of a discharge nip portion between the drive roller and the driven roller. The static elimination unit eliminates electric charge from the sheet to be discharged. The static elimination unit includes a static elimination cloth having electroconductive fiber and facing the sheet to be discharged and includes a support member supporting the static elimination cloth. The static elimination cloth is located so that a static elimination plane of the static elimination cloth, constituting a virtual plane facing the sheet, is substantially parallel to a virtual tangent line extending from the discharge nip portion.
Sheet conveying apparatus and image forming apparatus
A sheet conveying apparatus includes a sheet conveying member; a guide portion configured to define a sheet conveying path; a pressing portion configured to press the sheet to curve the sheet as viewed in a sheet conveying direction in the sheet conveying path; and a moving portion movable by an edge of the sheet passing through the sheet conveying path and arranged so that at least a part of a movable range of the moving portion is overlapped with the pressing portion. The moving portion includes a first abutment portion configured to abut against the sheet passing through the sheet conveying path on one side in the width direction with respect to a conveyance center of the sheet conveying member and a second abutment portion configured to abut against the sheet passing through the sheet conveying path on the other side with respect to the conveyance center.
PAPER FEED DEVICE AND IMAGE FORMING APPARATUS
A paper feed device includes a cassette, a main body, an actuator, a first elastic member, and a guide member. The actuator reciprocates between first and second directions in the second direction intersecting the first direction. The first elastic member urges the actuator. The guide member includes a base end portion, a front end portion, and a guide unit. The guide unit includes an apex portion overhanging in an opposite direction to the second direction. The base end portion is located at a third position in the second direction. The front end portion is movable between the third and a fourth position separated more than at the first position in the second direction. The guide unit is provided so that the apex portion can be disposed at the same position as an end of the actuator in the second direction at the second position.
PAPER FEED DEVICE AND IMAGE FORMING APPARATUS
A paper feed device includes a cassette, a main body, an actuator, a first elastic member, and a guide member. The actuator reciprocates between first and second directions in the second direction intersecting the first direction. The first elastic member urges the actuator. The guide member includes a base end portion, a front end portion, and a guide unit. The guide unit includes an apex portion overhanging in an opposite direction to the second direction. The base end portion is located at a third position in the second direction. The front end portion is movable between the third and a fourth position separated more than at the first position in the second direction. The guide unit is provided so that the apex portion can be disposed at the same position as an end of the actuator in the second direction at the second position.
Sheet post-processor and image forming system
A sheet post-processor includes a processing tray, a sheet discharge port, a discharge roller pair, a pair of cursor members, a pair of support members, and an interlocking mechanism. The interlocking mechanism includes a pair of coupling members arranged in the processing tray so as to be reciprocatable in a sheet width direction. The pair of coupling members are coupled to or decoupled from the pair of cursor members in accordance with movement of the pair of cursor members. While being coupled to the pair of cursor members, the pair of coupling members contact the pair of support members so as to displace the pair of support members to a protruding position, and while being decoupled from the pair of cursor members, the pair of coupling members separate from the pair of support members so as to displace the pair of support members to a retracted position.
TRANSPORT DEVICE AND PRINTING DEVICE
A transport portion includes a device main body, an upper guide portion, and a lower guide portion. In the device main body, a descending path and an ascending path overlap each other in a Z direction. The upper guide portion is configured to be moved outward with respect to the device main body and is positioned above the descending path and the ascending path in a state in which the upper guide portion is stored. The lower guide portion forms the descending path and the ascending path together with the upper guide portion. The lower guide portion includes a first path forming member and a second path forming member. The first path forming member forms the descending path and at least partially overlaps a moving area of the upper guide portion at a first position and does not overlap the moving area at a second position.
MEDIUM TRANSPORT APPARATUS
A transport section includes a first roller, a second roller, a first rotating shaft, a second rotating shaft, a support unit, a main body, a door, and a third rotating shaft. The second roller nips a paper sheet together with the first roller. The first rotating shaft rotatably supports the first roller; the second rotating shaft rotatably supports the second roller. The support unit supports the first rotating shaft; the main body supports the support unit. The third rotating shaft allows the door to rotate. When the door is opened, the support unit moves the first rotating shaft to an escaped point. The escaped point of the first rotating shaft is further from the first roller positioned at the nip point than the nip point.
DISCHARGING DEVICE AND IMAGE FORMING APPARATUS
A discharging device includes an aligning unit for aligning stacked sheets as a sheet bundle, a discharging unit for discharging the sheet bundle, a discharged tray on which the sheet discharged by the discharging unit is stacked, and a support unit. The support unit supports the sheet bundle from below by extending in a sheet discharging direction of the sheet bundle while the sheet bundle is discharged to the discharged tray and to be accommodated in a direction opposite to the sheet discharging direction at timing when the discharging unit finishes discharging the sheet bundle.
DISCHARGING DEVICE AND IMAGE FORMING APPARATUS
A discharging device includes an aligning unit for aligning stacked sheets as a sheet bundle, a discharging unit for discharging the sheet bundle, a discharged tray on which the sheet discharged by the discharging unit is stacked, and a support unit. The support unit supports the sheet bundle from below by extending in a sheet discharging direction of the sheet bundle while the sheet bundle is discharged to the discharged tray and to be accommodated in a direction opposite to the sheet discharging direction at timing when the discharging unit finishes discharging the sheet bundle.