Abstract: A sheet conveying device includes a sheet tray on which one or more sheets are placed, a pickup roller by which a sheet is picked up from the sheet tray, and an elevating mechanism. The elevating mechanism includes a shaft rotated by a motor, and a cam attached to the shaft and rotated together with the shaft to raise and lower the sheet tray with respect to the pickup roller. The sheet conveying device further includes a load applying mechanism contacting the shaft to apply a load thereto.

Abstract: A sheet conveying device includes an aligning roller and a sheet guide. The aligning roller is configured to rotate in a forward direction along a sheet conveying direction, and stop rotation or rotate in a reverse direction to align a sheet conveyed thereto with a nip formed with the aligning roller. The sheet guide is disposed along a sheet conveyance path extending to the nip in the sheet conveying direction, and movable between a first position at which the sheet conveyance path has a first width in a thickness direction of the sheet and a second position at which the sheet conveyance path has a second width in the thickness direction less than the first width. The sheet guide is at the first position when the aligning roller stops rotation or rotates in the reverse direction and at the second position when the aligning roller rotates in the forward direction.

Abstract: According to one embodiment, a paper feeding mechanism includes a tray, a first roller, a second roller, a third roller, and a guide member. The tray supports a sheet. The first roller picks up the sheet from the tray. The second roller conveys the sheet picked up by the first roller. The third roller forms a nip that sandwiches the sheet between the second roller and the third roller. Relative positions of the third roller and the first and second rollers are set such that a convey reference surface of the sheet that is in contact with the first roller and the second roller and a flat surface of the nip are disposed on substantially the same flat surface. The guide member is between the nip and the first roller and intersects the convey reference surface.

Abstract: A sheet conveying device includes a sheet tray on which one or more sheets are placed, a pickup roller by which a sheet is picked up from the sheet tray, and an elevating mechanism. The elevating mechanism includes a shaft rotated by a motor, and a cam attached to the shaft and rotated together with the shaft to raise and lower the sheet tray with respect to the pickup roller. The sheet conveying device further includes a load applying mechanism contacting the shaft to apply a load thereto.

Abstract: An image forming unit forms an image on a sheet. A sheet feed unit supplies the sheet to the image forming unit. A sheet tray is provided in the sheet feed unit. The sheet is placed on the sheet tray. An elevating plate is arranged on the sheet tray. The elevating plate can be ascended and descended between a descended position where the sheet is set and an ascending position higher than the descended position. A moving member can move between a first position in which the elevating plate is arranged in the descended position and a second position in which the elevating plate can move to the ascending position. A shielding member is interlocked with the ascending and descending operation of the elevating plate. The shielding member shields the moving member when the elevating plate is located at the descended position.

Abstract: A sheet conveying device includes an aligning roller and a sheet guide. The aligning roller is configured to rotate in a forward direction along a sheet conveying direction, and stop rotation or rotate in a reverse direction to align a sheet conveyed thereto with a nip formed with the aligning roller. The sheet guide is disposed along a sheet conveyance path extending to the nip in the sheet conveying direction, and movable between a first position at which the sheet conveyance path has a first width in a thickness direction of the sheet and a second position at which the sheet conveyance path has a second width in the thickness direction less than the first width. The sheet guide is at the first position when the aligning roller stops rotation or rotates in the reverse direction and at the second position when the aligning roller rotates in the forward direction.

Abstract: A sheet aligning mechanism includes first and second aligning rollers that form a nip therebetween, to which a leading end of a sheet to be aligned is conveyed. The first aligning roller includes first and second roller portions along a rotational axis of the first aligning roller, the first roller portion including a center of the first aligning roller in an axial direction, and a friction coefficient of a surface of the second roller portion is lower than a friction coefficient of a surface of the first roller portion.

Abstract: A sheet conveying device includes an aligning roller and a sheet guide. The aligning roller is configured to rotate in a forward direction along a sheet conveying direction, and stop rotation or rotate in a reverse direction to align a sheet conveyed thereto with a nip formed with the aligning roller. The sheet guide is disposed along a sheet conveyance path extending to the nip in the sheet conveying direction, and movable between a first position at which the sheet conveyance path has a first width in a thickness direction of the sheet and a second position at which the sheet conveyance path has a second width in the thickness direction less than the first width. The sheet guide is at the first position when the aligning roller stops rotation or rotates in the reverse direction and at the second position when the aligning roller rotates in the forward direction.

Abstract: Disclosed is a blade for a saddle folding unit that can saddle-fold a sheet. At the edge of a folding side of the sheet in the blade, a protrusion portion protruding in a pushing direction of the blade is provided.

Abstract: Disclosed is a blade for a saddle folding unit that can saddle-fold a sheet. At the edge of a folding side of the sheet in the blade, a protrusion portion protruding in a pushing direction of the blade is provided.

Abstract: An image forming apparatus according to an embodiment includes a feeder unit that stores a sheet on which no image is formed. A printer device forms an image on the sheet stored by the feeder unit. An erasing apparatus is connectably and detachably attached to the image forming apparatus. The erasing apparatus includes a first sheet stack that stores an unerased sheet on which an image is formed and an erasing device that erases the image formed on the unerased sheet.

Abstract: An image forming apparatus according to an embodiment includes a feeder unit that stores a sheet on which no image is formed. A printer device forms an image on the sheet stored by the feeder unit. An erasing apparatus is connectably and detachably attached to the image forming apparatus. The erasing apparatus includes a first sheet stack that stores an unerased sheet on which an image is formed and an erasing device that erases the image formed on the unerased sheet.

Abstract: In one embodiment, an erasing apparatus stores a first feeder unit and an erasing device. A casing of the erasing apparatus supports the first sheet stack and the erasing device slidably in a direction perpendicular to a direction of supplying a sheet from the first sheet stack to the erasing device. The first sheet stack and the erasing device are movable into and out of the casing.

Abstract: In one embodiment, an erasing apparatus stores a first feeder unit and an erasing device. A casing of the erasing apparatus supports the first sheet stack and the erasing device slidably in a direction perpendicular to a direction of supplying a sheet from the first sheet stack to the erasing device. The first sheet stack and the erasing device are movable into and out of the casing.

Abstract: In one embodiment, a decoloring apparatus has a heating member for image decoloring, and a shutter to prevent heat transmission from the heating member. The decoloring apparatus further has a contact/separation mechanism for the heating member, a driving mechanism for the shutter, and a controller. The controller controls the contact/separation mechanism, to make the heating member to be moved to the non-decoloring position, and then controls the driving mechanism, to make the shutter to be moved to the shielding position.

Abstract: A sheet processing apparatus according to an embodiment comprises a processing tray configured to receive sheets to be processed, the processing tray having an ejecting side from which sheets are ejected, and a loading tray provided downstream from the processing tray in a sheet ejecting direction and configured to receive sheets ejected from the processing tray. The sheet processing apparatus further comprises a bending restrainer including a restraining member extending almost parallel to the processing tray and covering a portion of the ejecting side of the processing tray, the restraining member configured to restrain bending of sheets ejected from the processing tray to the loading tray.

Abstract: A sheet processing apparatus includes a sheet regulating member that regulates the movement of a sheet in a space between a punch unit and a rear guide. The sheet regulating member may be set in an upper guide included in an upper part of the rear guide or may be set at a rear end in a sheet conveying direction of the punch unit. The sheet regulating member may be set between the punch unit and the rear guide and move following the movement of the punch unit.

Abstract: According to one embodiment, a sheet processing device includes a jogger fence configured to carry out a crosswise direction alignment to a stack of image formed sheets ejected from an image forming apparatus, a rear end fence acting as a lengthwise reference edge, a stapling device configured to staple the aligned sheet stack, a discharge belt configured to move the stapled sheet stack to a sheet ejection tray, and a controller to control movement of the jogger fence during the sheet stack being moved by the discharge belt so as to move the jogger fence more than once between a position where the jogger fence does not contact the edge of the sheet stack and a position where the jogger fence pressing contact the edge of the sheet stack.

Abstract: A sheet processing apparatus according to an embodiment comprises a processing tray configured to receive sheets to be processed, the processing tray having an ejecting side from which sheets are ejected, and a loading tray provided downstream from the processing tray in a sheet ejecting direction and configured to receive sheets ejected from the processing tray. The sheet processing apparatus further comprises a bending restrainer including a restraining member extending almost parallel to the processing tray and covering a portion of the ejecting side of the processing tray, the restraining member configured to restrain bending of sheets ejected from the processing tray to the loading tray.

Abstract: According to one embodiment, a sheet processing apparatus includes: a paper feeding section configured to receive a sheet and feed the sheet; a detecting section configured to detect the fed sheet; a standby tray on which the fed sheet is stacked, the standby tray including a first roller configured to convey the sheet; a second roller configured to pivot to come into contact with and separate from the first roller; a processing tray on which the sheet dropped and supplied from the standby tray is stacked, the processing tray holding the sheet while requested processing is applied to the sheet; a paper discharge section configured to receive the sheet subjected to the processing and discharged from the processing tray; and a control section configured to separate the second roller from the first roller according to a result of the detection during conveyance of the sheet to the standby tray.