Abstract: An image forming apparatus includes a main body frame; an image formation section contained in the main body frame that forms an image on a recording medium; an ejection mechanism contained in the main body frame that ejects the recording medium on which an image has been formed to an ejection section on the upper surface of the main body frame; an image scanning device mounted on the ejection section that scans the image of a document; and an operation section provided on the upstream side in the ejection direction of the recording medium in the ejection section that operates the image scanning device; wherein sides and the backside of the ejection section being opened viewed from the operation section side.

Abstract: The present invention provides an image forming device including: a main body frame at which an opening is provided; an image forming section that is accommodated in the main body frame, and that forms an image on a recording medium; an opening/closing cover that is rotatably supported and opens and closes the opening, a bent portion of the opening/closing cover that is bent toward the main body frame covering an edge portion, at the side of the opening, of the main body frame in a state in which the opening/closing cover is closed; and a fixed cover that is provided integrally with the main body frame, and that covers the bent portion in the state in which the opening/closing cover is closed.

Abstract: In an optical disk apparatus and a method of installing its spindle motor in accordance with the present invention, calculation is carried out to obtain a height wherein the spindle motor is supported by spindle motor support portions on the basis of the tilt and height data of the disk mounting face of a turntable with respect to a reference plane and on the basis of the tilt and height data of a plane formed by the plural spindle motor support portions on a chassis with respect to the reference plane. The heights of the spindle motor support portions are corrected on the basis of the result of the calculation.

Abstract: A rotation member driving device and an image forming apparatus using the same are provided. Without enlarging the device and increasing the cost, by reducing a speed variation generated during one rotation of a rotation member such as an image holding member or an intermediate transfer member, the distortion or color misregistration of an image formed on or transferred onto the rotation member is reduced and a high quality image can be formed. In the rotation member driving device for rotating and driving the rotation member for image formation by a gear attached thereto, a relation between a phase of eccentricity of the rotation member and a phase of a cumulative pitch error in a rotation direction of the gear is set so that a variation of a surface speed due to the eccentricity of the rotation member is restrained from appearing on the image.

Abstract: A rotation member driving device and an image forming apparatus using the same are provided. Without enlarging the device and increasing the cost, by reducing a speed variation generated during one rotation of a rotation member such as an image holding member or an intermediate transfer member, the distortion or color misregistration of an image formed on or transferred onto the rotation member is reduced and a high quality image can be formed. In the rotation member driving device for rotating and driving the rotation member for image formation by a gear attached thereto, a relation between a phase of eccentricity of the rotation member and a phase of a cumulative pitch error in a rotation direction of the gear is set so that a variation of a surface speed due to the eccentricity of the rotation member is restrained from appearing on the image.

Abstract: In an image forming apparatus, at least a part of a transporting passage for guiding a recording sheet of paper to an image forming unit is opened from the front side of an apparatus body. According to the image forming apparatus, a paper jam can be easily removed and a space necessary for maintenance/inspection such as removal of the paper jam can be minimized.

Abstract: An image forming apparatus providing frame support for an optical scanning unit and related image forming elements is formed of resin containing less than 10% glass fibers and includes reinforcement formations having a continuous hollow interior to increase rigidity while reducing weight. The apparatus is substantially box-like with ribbed surface for mounting a laser beam scanning unit and upright walls for mounting a drive unit are formed with ribs extending from thick wall portions.

Abstract: A recording apparatus for performing recording on a recording medium includes a feed roller for feeding a recording medium, a recording head reciprocally movable along a feed path of the recording medium conveyed by the feed roller, the recording head being arranged to perform recording on the recording medium, a motor rotatable in a forward and a reverse direction, a first driving force transmitting unit for driving the feed roller upon rotation of the motor, and a second driving force transmitting unit capable of not receiving the driving force when the driving force is transmitted from the motor to the first driving force transmitting unit. The second driving force transmitting unit is arranged to reciprocate the recording head upon reversible rotation of the motor. A particularly configured drive belt with toothed and non-toothed portions accomplishes this operation.

Abstract: A recording apparatus for effecting recording on a recording medium includes a recording head, a reversible motor, a force transmitting pulley for transmitting the drive force of the motor, a timing belt having a toothed portion engageable with teeth of the force transmitting pulley to receive the transmission of the force in order to move the recording head and an untoothed portion for idly rotating the pulley, and a controller for controlling the motor. The toothed portion of the belt includes two teeth at opposite ends of the untoothed portion, one of which is formed into such a shape that it is difficult for a tooth of the pulley to run thereon.

Abstract: A recording apparatus for effecting recording on a recording medium has a recording head for effecting recording on the recording medium, a reversible motor, a force transmitting device for transmitting the drive force of the motor, a belt having both an engagement portion engageable with the force transmitting device to receive the transmission of the force in order to move the recording head, and an area in which the engagement portion is not provided, and a control unit for controlling the motor so that the motor is rotated in a reverse direction and thereafter rotated in a forward direction when the engagement portion of the belt is brought into engagement with the force transmitting device.

Abstract: A recording apparatus for performing recording on a recording medium includes a feed roller for feeding a recording medium, a recording head reciprocally movable along a feed path of the recording medium conveyed by the feed roller, the recording head being arranged to perform recording on the recording medium, a motor rotatable in a forward and a reverse direction, a first driving force transmitting unit for driving the feed roller upon rotation of the motor, and a second driving force transmitting unit capable of not receiving the driving force when the driving force is transmitted from the motor to the first driving force transmitting unit. The second driving force transmitting unit is arranged to reciprocate the recording head upon reversible rotation of the motor. A particularly configured drive belt with toothed and non-toothed portions accomplishes this operation.

Abstract: A recording apparatus comprises a carriage for carrying a printing head capable of recording on a recording sheet, a drive belt secured to the carriage for reciprocating the carriage relative to the recording sheet when the drive belt is driven, a rotatable feed roller for feeding the recording sheet past the printing head when the feed roller is driven, a reversible motor having a rotatable motor shaft, a drive pulley mounted to the motor shaft, wherein the drive belt passes over the drive pulley to reciprocate the carriage when the motor shaft is rotated in different directions, a worm wheel mounted to the feed roller to rotate therewith to feed a recording sheet when the worm wheel is rotated in a predetemined direction, a worm gear mounted to the motor shaft, wherein the worm gear meshes with the worm wheel to rotate it in different directions when the motor shaft is rotated in respective different directions, and a one-way clutch cooperating with the said feed roller and the worm wheel to transmit the ro

Abstract: A recording apparatus preferably usable for desk-set type electronic calculator, computer, word processor, electronic typewriter or the like of the type having a platen detachably incorporated therein. The platen is operatively connected to an upper case. When it is to be removed from the apparatus, the case is first removed and the platen is then displaced away from the operative position by a turning movement in accordance with a removing movement of the case. Recording paper can be placed on the lower guide surface which is exposed to the outside. On completion of placing of the recording paper the case is closed together with the platen by way of the reverse steps until the platen assumes the operative position. To assure that the recording paper is stably held on the lower guide surface even after the platen is displaced away from the operative position, the base board is formed with an opposing pair of semispherical projections on the inner side walls.