Patent application number | Description | Published |
20090169228 | Image Forming Apparatus - An image forming apparatus includes: a lower body including a plurality of photosensitive members and having an opening; an upper body which is configured to open and cover the opening; a plurality of exposure units which are supported by the upper body and which are opposed to the photosensitive members when the cover covers the opening; a main substrate provided in the housing; an exposure control substrate which is provided to the upper body and controls light emission of the exposure units; a plurality of first cables which electrically connect the exposure units to the exposure control substrate, respectively, each of the first cables including a plurality of signal lines; and a second cable which electrically connects the exposure control substrate to the main substrate and which includes at least one signal line, a number of which is smaller than a total number of the signal lines included in the first cables. | 07-02-2009 |
20090169249 | Image Forming Apparatus - An image forming apparatus includes: a housing including a photosensitive member and having an opening at an upper portion of the housing; an upper cover connected to the housing at one end of the upper cover via a hinge and configured to move between an opened state and a closed state; an exposure unit supported by the upper cover and configured to face the photosensitive member when the upper cover is in the closed state; and a lock mechanism. The lock mechanism is releasable by lifting the upper cover so that the upper cover becomes to the opened state. | 07-02-2009 |
20090252527 | Image Forming Apparatus - An image forming apparatus includes: an apparatus body; a first rotating body having a first end supported on the apparatus body rotatably about an axis so that the first rotating body is rotatable between an adjacent state and a distant state in which a second end is more distant from the apparatus body than the adjacent state; an arm having a first end rotatably supported on the apparatus body, and a second end connected to the first rotating body to be slidable in a direction perpendicular to the axis; and an urging member having a first end connected to the arm, and a second end connected to the first rotating body at a position between the axis and a connecting portion to which the arm is connected, the urging member urges the arm in a direction of drawing the second end of the arm toward the axis. | 10-08-2009 |
20090252528 | Image Forming Apparatus - An image forming apparatus includes: a first body formed with an opening; a second body which is rotatable about an axis between an open posture and a closed posture; a swingable member which includes one end swingably supported on the second body, and another end opposite to the one end, wherein as the second body is rotated from a first angle position toward the open posture, the swingable member swings from a distant posture toward an adjacent posture in which the other end is closer to the second body than the distant posture, and wherein as the second body is rotated from the open posture toward the first angle position, the swingable member swings toward the distant posture; and a regulating mechanism which regulates a swingable range of the swingable member when the second body is rotated from a third angle position toward the closed posture. | 10-08-2009 |
20100020155 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photoreceptor which is rotatable with respect to a body frame, an exposing member which is movable relative to the body frame, a spacing member which is provided between the exposing member and the photoreceptor to maintain a distance between the photoreceptor and the exposing member, a positioning member which makes a contact with the exposing member to position the exposing member in a direction of rotation of the photoreceptor, and a pressing member which is provided to the body frame to press the exposing member toward the photoreceptor and the positioning member. Accordingly, it is possible to position the exposing member accurately with respect to the photoreceptor, in any of the light-axis direction and the rotational direction of the photoreceptor. | 01-28-2010 |
20100054808 | IMAGE FORMING DEVICE WHOSE UPPER COVER IS PROVIDED WITH DISCHARGE ROLLER AND PINCH ROLLER - In order to facilitate removal of jammed sheets in an image forming device placed at a low place, there is provided an image forming device including a main body formed with an upper opening; an image forming unit that forms images on recording medium, and an upper cover pivotably movably supported to the main body for covering the upper opening. The main body accommodates the image forming unit. The upper cover includes a discharge roller and a pinch roller pressed against the discharge roller. The discharge roller discharges the recording medium conveyed from the image forming unit outside the main body of the image forming device in cooperation with the pinch roller. | 03-04-2010 |
20110037823 | IMAGE FORMING APPARATUS WITH A PLURALITY OF EXPOSURE UNITS - An image forming apparatus includes: a lower body including a plurality of photosensitive members and having an opening; an upper body which is configured to open and cover the opening; a plurality of exposure units which are supported by the upper body and which are opposed to the photosensitive members when the cover covers the opening; a main substrate provided in the housing; an exposure control substrate which is provided to the upper body and controls light emission of the exposure units; a plurality of first cables which electrically connect the exposure units to the exposure control substrate, respectively, each of the first cables including a plurality of signal lines; and a second cable which electrically connects the exposure control substrate to the main substrate and which includes at least one signal line, a number of which is smaller than a total number of the signal lines included in the first cables. | 02-17-2011 |
20120087693 | IMAGE FORMING APPARATUS - An image forming apparatus comprising a process unit having a charger that charges a photosensitive member, a fixing unit having a heat source for thermally fixing a developer image formed on a recording sheet by the process unit, an apparatus body configured to accommodate the process unit and the fixing unit and having an ejection port above the fixing unit, the ejection port being used for ejecting the recording sheet ejected from the fixing unit to the outside of the image forming apparatus and an exhaust fan configured to discharge air inside the apparatus body to the outside of the image forming apparatus. The exhaust fan is disposed at a fixing-unit side of the process unit and is disposed lower than both the charger and the heat source such that air entering through the ejection port from outside the image forming apparatus flows through the fixing unit and is discharged by the exhaust fan. | 04-12-2012 |
20120219314 | IMAGE FORMING APPARATUS - An image forming apparatus includes a plurality of process cartridges and a pair of frames. Each of the plurality of process cartridges includes a photosensitive drum, a charger and a charger supporting wall. One of the pair of frames has a plurality of first openings such that air outside the pair of frames is sucked between the pair of frames through the first openings. The other of the pair of frames has a plurality of second openings such that air between the pair of frames is discharged outside the pair of frames through the second openings. The first openings are positioned on an opposite side of the charger supporting wall from the photosensitive drum. The second openings are positioned on the same side of the charger supporting wall as the photosensitive drum. | 08-30-2012 |
20130077986 | IMAGE FORMING APPARATUS - An image forming apparatus includes: a main body having an opening; a plurality of photosensitive members disposed in the main body; a cover configured to open and close the opening; and a plurality of exposure members that is provided at the cover and is configured to expose the plurality of photosensitive members, respectively. The cover includes a cover-side metal plate provided along a surface of the cover. Entire parts of the plurality of exposure members overlap with the cover-side metal plate, when seen in a direction normal to the cover-side metal plate. At least four positions of the cover-side metal plate, which surround the plurality of exposure members, are electrically grounded at a state in which the cover is closed. | 03-28-2013 |
20130164025 | Image Forming Apparatus - An image forming apparatus includes: a rotary member which rotates with respect to an apparatus main body between a first position and a second position; and a buffering member connected to the apparatus main body and the rotary member for buffering an impact attributable to the rotation of the rotary member. The buffering member includes: a hollow member; a movable member moveable between an evacuation position and an advance position; and a slide member provided to the movable member and contactable with an inner circumferential surface of the hollow member. The slide member is deformable such that a first pressure on the hollow member when the rotary member rotates from the first position to the second position is larger than a second pressure on the hollow member when the rotary member rotates from the second position to the first position. | 06-27-2013 |
20140023398 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photoreceptor which is rotatable with respect to a body frame, an exposing member which is movable relative to the body frame, a spacing member which is provided between the exposing member and the photoreceptor to maintain a distance between the photoreceptor and the exposing member, a positioning member which makes a contact with the exposing member to position the exposing member in a direction of rotation of the photoreceptor, and a pressing member which is provided to the body frame to press the exposing member toward the photoreceptor and the positioning member. Accordingly, it is possible to position the exposing member accurately with respect to the photoreceptor, in any of the light-axis direction and the rotational direction of the photoreceptor. | 01-23-2014 |