Abstract: A semiconductor device in which it is possible to suppress short-circuiting between pads for chip arising from dicing processing is provided. The semiconductor device includes a semiconductor substrate, multiple first pads, and multiple second pads. The first pads are formed in an element formation region and the second pads are formed in a dicing line region surrounding the element formation region. The dicing line region includes a first region for which second pads are prone to electrically short-circuit to each other and a second region for which second pads are less prone to electrically short-circuit to each other. Some first pads arranged in positions opposite the first region are arranged farther away from one side of the outer edge of the element formation region than the remaining first pads arranged in positions opposite the second region are.

Abstract: A semiconductor device in which it is possible to suppress short-circuiting between pads for chip arising from dicing processing is provided. The semiconductor device includes a semiconductor substrate, multiple first pads, and multiple second pads. The first pads are formed in an element formation region and the second pads are formed in a dicing line region surrounding the element formation region. The dicing line region includes a first region for which second pads are prone to electrically short-circuit to each other and a second region for which second pads are less prone to electrically short-circuit to each other. Some first pads arranged in positions opposite the first region are arranged farther away from one side of the outer edge of the element formation region than the remaining first pads arranged in positions opposite the second region are.

Abstract: A developing device is provided for an image forming apparatus that has a photoreceptor. The developing device has a housing with upper and lower housing pieces that are snap fit together. A developer opening is formed in an upper portion of the upper housing piece for supplying a developer and a bottom opening is formed in a bottom part of the upper housing piece. A developer carrier and a developer agitating member are supported rotatably in the upper housing so that an axis of the developer agitating member is below an axis of the developer carrier and below the developer opening. The lower housing piece is configured to seal the bottom opening of the upper housing piece. However, the snap fit housings can be separated for cleaning as necessary.

Abstract: A toner container contains toner and includes: a container having a toner discharge hole; a toner conveyance screw for conveying the toner within the container toward the toner discharge hole; and a shutter cylinder including a peripheral wall formed with a toner discharge opening at a position corresponding to the toner discharge opening. The toner conveyance screw is rotatably supported at one end thereof by a bearing within the shutter cylinder. The shutter cylinder is mounted to a side wall of the container in a rotation free manner.

Abstract: A toner container for containing toner includes a toner discharge hole, a toner conveyance screw for conveying the toner within the container toward the toner discharge hole, a driving force transmitting portion for transmitting a driving force to the toner conveying screw, and a plurality of supporting legs for supporting the container. One of the supporting legs also serves as a covering member for covering the driving force transmitting portion.

Abstract: A toner container adapted for containing toner includes a first side wall and a second side wall opposed to each other. The toner container longitudinally extends between the first side wall and the second side wall and includes a handle to be held when the container is attached to or detached from the apparatus main body and a retaining portion provided on the first side wall to be engaged with a portion of the apparatus main body when the container is installed in the apparatus main body. The handle is provided at a position shifted to the second side wall from a center of the container in the longitudinal direction.

Abstract: A toner container for containing toner includes a first side wall and a second side wall opposite to each other; a toner discharge hole; an agitator for agitating the toner, the agitator rotatable around an agitating shaft bridged between the first side wall and the second side wall; a bearing portion for supporting one end of the agitating shaft; a swing prevention portion for preventing the container from swinging; and a toner charging hole for charging toner into the container. The first side wall is formed with the bearing portion, the swing prevention portion, and the toner charging hole. The bearing portion is between the toner charging hole and the swing prevention portion on an outer surface of the first side wall.

Abstract: A paper conveying/branching device comprising a main conveyer passage, a first branched conveyer passage, a second branched conveyer passage, a conveyer passage change-over guide member, a solenoid and a controller. When the displacing member of the solenoid is displaced to the first operation position from the second operation position, the conveyer passage change-over guide member is rotated from the second position to the first position by its own weight or by a spring force, so that the upstream side in the direction of conveying the paper is lowered with respect to the support shaft. In a state where the conveyer passage change-over guide member is brought to the second position, the controller so operates the solenoid that the displacing member is displaced to the first operation position from the second operation position after the leading end of the paper has passed through, or while the leading end of the paper is passing through, the conveyer passage change-over guide member.

Abstract: A developing device includes a housing with an opening portion for supplying developer; a developer carrier rotatably placed within the housing so as to expose a portion of the developer carrier through the opening portion; and a developer agitating member rotatably placed within the housing in order to agitate and electrically charge the developer. The housing is formed such that the first housing piece and the second housing piece are coupled to each other in a detachable manner. The first housing piece is provided therein with the opening portion and a sealed opening portion, and supports the developer carrier and the developer agitating member in a rotatable manner, and the second housing piece is coupled with the first housing piece so as to seal the sealed opening portion, and the first housing piece and the second housing piece are coupled to each other through a snap fit joint.

Abstract: A toner container adapted for containing toner includes a first side wall and a second side wall opposed to each other. The toner container longitudinally extends between the first side wall and the second side wall and includes a handle to be held when the container is attached to or detached from the apparatus main body and a retaining portion provided on the first side wall to be engaged with a portion of the apparatus main body when the container is installed in the apparatus main body. The handle is provided at a position shifted to the second side wall from a center of the container in the longitudinal direction.

Abstract: A toner container for containing toner includes a toner discharge hole, a toner conveyance screw for conveying toner within the container toward the toner discharge hole, an agitator with an agitating blade for agitating the toner, and a recessed screw accommodation portion recessed in a bottom of the container for accommodating the toner conveyance screw. The toner conveyance screw is retained in the recessed screw accommodation portion with the toner conveyance screw exposed partially. The agitator is disposed in the container in parallel with the toner conveyance screw, and the agitating blade interferes with a portion of the toner conveyance screw exposed from the recessed screw accommodation portion.

Abstract: A toner container contains toner and includes: a container having a toner discharge hole; a toner conveyance screw for conveying the toner within the container toward the toner discharge hole; and a shutter cylinder including a peripheral wall formed with a toner discharge opening at a position corresponding to the toner discharge opening. The toner conveyance screw is rotatably supported at one end thereof by a bearing within the shutter cylinder. The shutter cylinder is mounted to a side wall of the container in a rotation free manner.

Abstract: A toner container for containing toner includes a first side wall and a second side wall opposite to each other; a toner discharge hole; an agitator for agitating the toner, the agitator rotatable around an agitating shaft bridged between the first side wall and the second side wall; a bearing portion for supporting one end of the agitating shaft; a swing prevention portion for preventing the container from swinging; and a toner charging hole for charging toner into the container. The first side wall is formed with the bearing portion, the swing prevention portion, and the toner charging hole. The bearing portion is between the toner charging hole and the swing prevention portion on an outer surface of the first side wall.

Abstract: A toner container for containing toner includes a toner discharge hole, a toner conveyance screw for conveying the toner within the container toward the toner discharge hole, a driving force transmitting portion for transmitting a driving force to the toner conveying screw, and a plurality of supporting legs for supporting the container. One of the supporting legs also serves as a covering member for covering the driving force transmitting portion.

Abstract: A paper conveying/branching device comprising a main conveyer passage, a first branched conveyer passage, a second branched conveyer passage, a conveyer passage change-over guide member, a solenoid and a controller. When the displacing member of the solenoid is displaced to the first operation position from the second operation position, the conveyer passage change-over guide member is rotated from the second position to the first position by its own weight or by a spring force, so that the upstream side in the direction of conveying the paper is lowered with respect to the support shaft. In a state where the conveyer passage change-over guide member is brought to the second position, the controller so operates the solenoid that the displacing member is displaced to the first operation position from the second operation position after the leading end of the paper has passed through, or while the leading end of the paper is passing through, the conveyer passage change-over guide member.

Abstract: In order to provide an image forming apparatus capable of forming a quality image by restricting a distance between a developing roll and a magnetic roll with a simple structure, an image forming apparatus comprises a magnetic roll 1 and a developing roll 2 that are disposed in parallel with a predetermined distance and a developing unit 50 that develops an electrostatic latent image on a photosensitive body drum 3 disposed on the image forming apparatus main body using a toner thin layer formed on the surface of the developing roll by means of the magnetic roll, wherein a member for holding rotational axes having a pair of openings for holding, which fits and holds rotatably and integrally each of rotational axes of the magnetic roll and the developing roll is provided, the opening for holding of the developing roll being capable of swinging around the axis center of the opening for holding of the magnetic roll.

Abstract: An image forming apparatus of non-contact developing method using two-component developer material which is capable of obtaining a clear image free from fogging, ghost and toner contamination. The image forming apparatus has at least one developing unit which includes a developing roll and a magnetic roll, the developing unit develops an electrostatic latent image on a photosensitive body with a toner thin layer formed on the surface of a developing roll wherein a toner thin layer forming region on the developing roll is smaller than a magnetic brush forming region on the magnetic roll. A high resistivity region is adjacent each end of the toner thin layer forming region on the developing roll. A control device controls a developer material replenishment and controls the biasing to the developing roll and magnetic roll.

Abstract: In order to provide an image forming apparatus capable of forming a quality image by restricting a distance between a developing roll and a magnetic roll with a simple structure, an image forming apparatus comprises a magnetic roll 1 and a developing roll 2 that are disposed in parallel with a predetermined distance and a developing unit 50 that develops an electrostatic latent image on a photosensitive body drum 3 disposed on the image forming apparatus main body using a toner thin layer formed on the surface of the developing roll by the magnetic roll, wherein a member for holding rotational axes having a pair of openings for holding, which fits and holds rotatably and integrally each of rotational axes of the magnetic roll and the developing roll is provided, the opening for holding of the developing roll being capable of swinging around the axis center of the opening for holding of the magnetic roll.

Abstract: To avoid developing ghost and selective developing without complicating a developing apparatus and to supply surly charged toner to a developing roll while unevenness of images is not generated to obtain stable images for a long time even when continuous printing, a method for developing in a hybrid developing apparatus is provided, which is characterized in that a data amount of each image, which an image forming apparatus prints and a number of paper sheets passed are detected and that an interval of the action of recovering and exchanging a toner layer on the developing roll to the magnetic roll after printing between paper sheets is variably set in accordance with a printing coefficient determined by the data amount and the number of paper sheets passed and further, a method for developing in a color tandem-type image forming apparatus provided with a plurality of the hybrid developing apparatuses for all different colors of toner, which are disposed along the moving direction of a transfer medium of imag

Abstract: A method and apparatus for image forming includes a hybrid developing apparatus that supplies surly charged toner to a developing roll. The apparatus includes a developing roll that is electrically conductive at least on its surface. The image forming apparatus and the method have a constitution capable of applying an alternating current bias having a duty ratio in the range of 10 to 50% and a direct current bias superposed thereon. The developing roll is directly confronted with a latent image bearing body through an insulative toner thin layer at the nearest region of the developing roll and the latent image bearing body. An independent bias is applied to each of the developing roll and the magnetic roll, and the toner is refreshed by the varying duty ratio of the alternate current bias and the direct current bias after developing.