Abstract:
An image forming apparatus for performing a recording operation with respect to a recording medium, includes an image forming device for forming an image on a recording medium, a recording medium receiver for receiving the recording medium on which the image is formed, and a laser beam emitter, arranged below the recording medium receiver, for emitting a laser beam in accordance with image information so as to cause the image forming device to form an image. The laser beam emitter is arranged below the recording medium receiver to emit a laser beam obliquely upward.
Abstract:
An image forming apparatus includes an image bearing member, a transfer unit for transferring an unfixed image on the image bearing member onto recording material, and a fixing rotating member for fixing the unfixed image while grasping and conveying the recording material supporting the unfixed image. The apparatus further includes a first detector, provided at a side downstream from a grasping portion of the fixing rotating member in the moving direction of the recording material, for detecting the recording material, and a second detector, provided at a side upstream from the grasping portion of the fixing rotating member in the moving direction of the recording material, for detecting the recording material. The distance between the first and second detectors is less than the minimum length in the conveying direction of ordinary recording material used in the apparatus.
Abstract:
An assembling method of an image forming apparatus for forming an image on a recording material includes preparing a frame, a feeding unit having a feeding roller, electrical component unit having electrical components and an outer cover; mounting the feeding unit and the electrical component unit to the frame from a position of the frame which takes a bottom position upon installation of the image forming apparatus; and then overturning of the frame; mounting the outer cover to the frame from a position which takes a top position upon installation of the frame.
Abstract:
The present invention provides an image forming apparatus including a sheet supply device having a detachable sheet supply roller for feeding stacked sheets, an image forming device having a process cartridge for forming an image on the sheet fed by the sheet supply device, a cartridge containing portion for detachably containing the process cartridge within a body of the image forming apparatus, and a sheet discharge device for discharging and stacking the sheets on which the images were formed by the image forming device. The sheet supply roller and the process cartridge are disposed adjacent to each other, and, after the process cartridge is disengaged from the cartridge containing portion, the sheet supply roller is mounted and dismounted through the cartridge containing portion.
Abstract:
A frame structure usable in an image forming apparatus for forming an image on a recording material using a laser source, the apparatus includes a first wall; a second wall opposed to the first wall; first and second connecting members bridging between the first wall and the second wall; a scanner supporting member for supporting an optical device between the first connecting member and the second connecting member; a motor supporting member for supporting a motor between the scanner supporting member and the first wall; wherein the walls, connecting members, scanner supporting member and motor supporting member are integrally molded.
Abstract:
A gear unit usable with an image forming apparatus for forming an image on a recording material, the image forming apparatus including an image bearing member, an image fixing unit for fixing on a recording material a toner image formed on the image bearing member and transferred to the recording material from the image bearing member, and a feeder for feeding the recording material, the gear unit includes an image bearing member driving gear for transmitting a driving force to the image bearing member; fixing device driving gear for transmitting a driving force to the fixing unit; a feed drive gear for transmitting a driving force to the feeder: a supporting member for supporting the image bearing member driving gear, the image fixing device driving gear and the feed driving gear.
Abstract:
An image forming apparatus for forming an image on a recording material, to which a process cartridge is detachably mountable, the image forming apparatus including a mounting device for mounting a process cartridge having an image bearing member comprising a helical gear, and a process device actable on the image bearing member; a feeder for feeding the recording material; and projection device for projecting image information light onto the image bearing member in a direction from a projection reference disposed at one side of an axis of the image bearing member to the other side; a positioning reference for positioning the image bearing member in its axial direction; feed guide reference for guiding the recording material fed by the feeder; and wherein the positioning reference, the feed guide reference and the projection reference are disposed in a same side of a main assembly of the image forming apparatus.
Abstract:
An image forming apparatus includes: a conveying unit for conveying a recording material on which an image is to be formed; and a pair of side members provided on both sides of the recording material conveyed by the conveying unit, in which the pair of side members each have a first surface portion and a second surface portion that extends in a direction different from the first surface portion, the first surface portion of one of the pair of side members being opposed to that of the other, and in which the conveying unit is attached to the second surface portion of each of the pair of side members, whereby the maintenance property of the conveying unit for conveying the recording material is improved.
Abstract:
A sheet supply portion is disposed in the lowermost portion of a printer so as to be substantially horizontal. A main conveying path for guiding a sheet from a transferring roller to a fixing device is disposed in a substantially vertical direction so as to be along the back of the printer. The guide surface of a sheet delivery guide constituting a conveying path leading from the fixing device to a pair of sheet delivery rollers is a flat surface.
Abstract:
An image forming apparatus includes: a conveying unit for conveying a recording material on which an image is to be formed; and a pair of side members provided on both sides of the recording material conveyed by the conveying unit, in which the pair of side members each have a first surface portion and a second surface portion that extends in a direction different from the first surface portion, the first surface portion of one of the pair of side members being opposed to that of the other, and in which the conveying unit is attached to the second surface portion of each of the pair of side members, whereby the maintenance property of the conveying unit for conveying the recording material is improved.