Abstract: A laser beam printer having a deflector for deflecting a laser beam modulated in accordance with information to be recorded and a photosensitive member which is scanned by the deflected laser beam. A frame is provided to position both the deflector and the photosensitive member, the frame having a positioning portion for positioning the photosensitive member. The frame is mounted on a printer base, the frame being supported on the base at three points wherein one of the three points is located adjacent the deflector and the other two points are disposed adjacent the positioning portion of the photosensitive member.

Abstract: A sheet feeding apparatus includes a feeding roller for feeding a sheet material from a stack of sheet materials, a separation device for cooperating with the feeding roller to allow only one sheet material to be fed, a transportation roller for cooperating with the feeding roller to transport the sheet material separated by the separating device.

Abstract: An image forming apparatus includes a supporting member for detachably supporting a process cartridge which contains a movable image bearing member and at least one process device for generating an image on the image bearing member. The apparatus also includes an openable and closable member, a member for applying to the process cartridge a force for urging the process cartridge in a direction of dismounting the process cartridge, in response to opening of the openable and closable member, and a member for applying to the process cartridge a force for urging the process cartridge in a direction for mounting the process cartridge to the supporting member, in response to closing of the openable and closable member.

Abstract: An electrographic apparatus includes a laser optical unit for scanningly deflecting a laser beam, a photosensitive member for receiving the laser beam from the laser optical unit to be scanned thereby, and an integrally molded frame provided with a first positioning portion for postioning and supporting the laser optical unit and a second positioning portion for postioning and supporting the photosensitive member.

Abstract: This invention relates to a sheet loading device for causing sheets put out one after another from a sheet output apparatus such as a laser beam printer or a copying apparatus onto a sheet receiving member to be loaded in orderly, mutually superposed relationship without being deviated from one another.

Abstract: This specification discloses a sheet aligning device for aligning conveyed sheets by bringing rotatable paddles comprising a plurality of flexible members into contact with two surfaces substantially orthogonal to each other and in which the sheets are aligned by a rotatable main paddle member for imparting to the sheet a draw-in force in the direction of intersection of the two surfaces substantially orthogonal to each other and a rotatable auxiliary paddle member for causing the sheet to be conveyed to one of the two surfaces with a draw-in force weaker than the draw-in force of the main paddle member.

Abstract: An image transfer device in an image forming apparatus is generally constructed with a recording element as an intermediate recording medium to hold thereon an image to be transferred onto an image transfer material. An image transfer device transfers the image from the recording element to the image transfer material and a guiding device guides the image transfer material which is capable of setting a position from the recording element in accordance with a kind of the image transfer material used. An image transfer material conveying device conveys the image transfer material through the recording element and the image transfer device and driving device displaces the guiding device in the direction away from the recording element at the time of non-operation of the image transfer material conveying device.

Abstract: A paper splicer incorporated in a line printer of a construction, wherein paper having a series of engaging holes formed at both sides thereof is forwarded in one direction. The splicer has a paper end position detector, a paper splicing table, and a tractor having a plurality of pins to be engaged with the engaging the holes of the paper, which are arranged sequentially in contact with the lower surface of the paper. With this arrangement, a position where the last end of the paper arrives is detected by the paper end position detector, and, at the same time, the last end of the paper is stopped on the upper surface of the splicing table, and the engaging holes of the subsequent paper are engaged with the pins on the tractor, and the last end of the paper is spliced, on the splicing table, with the subsequent paper by means of an adhesive tape.

Abstract: A fixing device in which a toner image support member is pressure-held between and conveyed by a pair of rollers at least one of which is heated to a temperature at which the toner image may be fixed on the support member, characterized in that the end of at least one of the rollers which tends to be higher in temperature is cooled or the opposite end of said at least one roller is supplied with heat, whereby the thermally expanded state of said at least one roller and the thermally expanded state of the other roller are maintained in such a condition that the toner image support member is not laterally displaced from a predetermined conveyance path.