摘要:
A belt unit includes an endless belt, a first reinforcing member and a second reinforcing member which are provided on the endless belt, and supporting members. In a belt widthwise direction, a length from an inner edge surface of the first reinforcing member to an inner edge surface of the second reinforcing member is smaller than a width of a region in which the supporting members contact the endless belt, and a length from an outer edge surface of the first reinforcing member to an outer edge surface of the second reinforcing member is larger than the width of the region.
摘要:
An image forming apparatus includes an openable and closable member openable and closable relative to the main body of the apparatus. A switch, which is held by a holding member, detects, the opened and closed states of the openable and closable member. The holding member is movable relative to the main body of the apparatus. The openable-and-closable member has an engagement portion to be engaged with the switch, and the engagement portion positions the holding member.
摘要:
A belt unit includes a rotatable endless belt for receiving a toner image thereon or for conveying a transfer material, wherein the endless belt has a smooth-shaped inner peripheral surface, a first reinforcing member, provided on an outer peripheral surface of the endless belt at one end portion with respect to a belt widthwise direction, for reinforcing the endless belt, and a second reinforcing member, provided on the outer peripheral surface of the endless belt at the other end portion. In addition, a driving roller rotationally drives the endless belt while supporting the inner peripheral surface of the endless belt. In the belt widthwise direction, a first length from an inner edge surface of the first reinforcing member to an inner edge surface of the second reinforcing member is smaller than a width of a region in which the driving roller contacts the endless belt, and a second length from an outer edge surface of the first reinforcing member to an outer edge surface of the second reinforcing member is larger than the width of the region in which the driving roller contacts the endless belt.
摘要:
A sheet feeding apparatus includes a sheet placing tray on which a sheet is placed, a feeding member for feeding the sheet placed on the sheet placing tray, a first sheet detection unit for detecting presence of the sheet on the sheet placing tray at a first detection position, and a second sheet detection unit for detecting presence of the sheet on the sheet placing tray at a second detection position disposed on an upstream side of the first detection position in a sheet feeding direction. A control unit controls the feeding member so as not to perform the sheet feeding operation when the first detection unit detects the sheet and the second detection unit does not detect the sheet.
摘要:
The present invention has a sheet placing tray on which a sheet is placed, a feeding member for feeding the sheet placed on the sheet placing tray, a first sheet detection unit for detecting presence of the sheet on the sheet placing tray at a first detection position, a second sheet detection unit for detecting presence of the sheet on the sheet placing tray at second detection position disposed on an upstream side of the first detection position in a sheet feeding direction, and a control unit controls the feeding member so as not to perform the sheet feeding operation when the first detection unit is in a state in which the sheet is detected and the second detection unit is in a state in which the sheet is not detected.
摘要:
A sheet conveying apparatus and an image forming apparatus include a transfer roller which transfers a developer developing an electrostatic latent image on a photosensitive drum to a sheet, a pair of registration rollers which nip the sheet into a conveying nip formed by a pair of rotary members and conveys the sheet to the transfer roller, and an upper transfer guide for leading the sheet from the pair of registration rollers to the transfer roller. In addition, a conveyance regulating member regulates a conveying direction of the sheet conveyed by the pair of registration rollers and brings the sheet into contact with the upper transfer guide.