Abstract: A movable light beam is controlled and set within a tolerable range of a beam position A by using a galvano-mirror, and then a circuit offset relating to the beam position A is measured. With the circuit offset being subtracted, the movable laser beam is exactly controlled and set at the beam position A, and an output value DA from a sensor at that time is stored. Subsequently, an output value DB from the sensor is similarly stored in connection with a beam position B. An ultimate beam position of the movable laser beam M is controlled such that a difference between the output values DA and DB coincides with a difference between an output value DS of the sensor with respect to a stationary laser beam S and an output value DM of the sensor in connection with the movable laser beam M.

Abstract: The carrying apparatus includes a carrying device for carrying an object to be carried, along a carrying route having a corner part, a control device for temporarily stopping and holding the object carried by the carrying device, and a detection device for detecting the object positioned at a corner part of the carrying route, wherein if the detection device detects the object when the control device stops carrying the object, the control device controls the carrying device such that the carrying device carries the object until the detection device does not detect the object any more and the carrying device then stops carrying the object.

Abstract: Even when reset during standby, an optical scanning apparatus according to the present invention enables the angles of mirror faces of galvanomirrors to be easily adjusted to reduce the time required to adjust the positions of light beams. The value of power supplied to the galvanomirror is stored as information on an angle of the galvanomirror obtained while a driving control means is turned off, where the information on the angle of the galvanomirror is based on positions where a light beam passes a beam position sensor.

Abstract: A fixing unit includes an inductor which heats a heating roller by electromagnetic induction, the heating roller serving as a heat source which fixes toner supplied to a paper sheet, and a heat control circuit which supplies radio-frequency power to the inductor. Particularly, the heat control circuit is set such that the radio-frequency power is changed in a stepwise manner to increase and reduce the temperature of the heating roller.

Abstract: According to a beam control device of the present invention, if an exposure device including a light emitting section is instructed to form an image and a predetermined current is then supplied to an application specific integrated circuit and a main control section, then the main control section outputs an light emitting section on signal. Then, the light emitting section outputs light having its intensity changed according to image information.

Abstract: Preset electric powers are distributed and continuously supplied to a plurality of coils to uniformly heat a fixing member in a warm-up period, and the preset electric power is supplied only to the coil corresponding to a region whose temperature is lowered in a ready state.

Abstract: An image forming apparatus senses a voltage value of a power supply voltage applied to a fixing unit from a power supply, determines a specification for the power supply based on the sensed voltage value of the power supply voltage, and performs control corresponding to the determined specification for the power supply.

Abstract: The carrying apparatus includes a carrying device for carrying an object to be carried, along a carrying route having a corner part, a control device for temporarily stopping and holding the object carried by the carrying device, and a detection device for detecting the object positioned at a corner part of the carrying route, wherein if the detection device detects the object when the control device stops carrying the object, the control device controls the carrying device such that the carrying device carries the object until the detection device does not detect the object any more and the carrying device then stops carrying the object.

Abstract: The carrying apparatus includes a carrying device for carrying an object to be carried, along a carrying route having a corner part, a control device for temporarily stopping and holding the object carried by the carrying device, and a detection device for detecting the object positioned at a corner part of the carrying route, wherein if the detection device detects the object when the control device stops carrying the object, the control device controls the carrying device such that the carrying device carries the object until the detection device does not detect the object any more and the carrying device then stops carrying the object.

Abstract: The carrying apparatus comprises a carrying device for carrying an object to be carried, along a carrying route having a straight part and an arc-like corner part, a straight escape part provided in the carrying device, and a control device for letting the object carried along the carrying route escape temporarily to the escape part and for keeping it therein, if necessary.

Abstract: A fixing unit includes an inductor which heats a heating roller by electromagnetic induction, the heating roller serving as a heat source which fixes toner supplied to a paper sheet, and a heat control circuit which supplies radio-frequency power to the inductor. Particularly, the heat control circuit is set such that the radio-frequency power is changed in a stepwise manner to increase and reduce the temperature of the heating roller.

Abstract: Preset electric powers are distributed and continuously supplied to a plurality of coils to uniformly heat a fixing member in a warm-up period, and the preset electric power is supplied only to the coil corresponding to a region whose temperature is lowered in a ready state.

Abstract: A movable light beam is controlled and set within a tolerable range of a beam position A by using a galvano-mirror, and then a circuit offset relating to the beam position A is measured. With the circuit offset being subtracted, the movable laser beam is exactly controlled and set at the beam position A, and an output value DA from a sensor at that time is stored. Subsequently, an output value DB from the sensor is similarly stored in connection with a beam position B. An ultimate beam position of the movable laser beam M is controlled such that a difference between the output values DA and DB coincides with a difference between an output value DS of the sensor with respect to a stationary laser beam S and an output value DM of the sensor in connection with the movable laser beam M.

Abstract: The carrying apparatus comprises a carrying device for carrying an object to be carried, along a carrying route having a corner part, a control device for temporarily stopping and holding the object carried by the carrying device, and a detection device for detecting the object positioned at a corner part of the carrying route, wherein if the detection device detects the object when the control device stops carrying the object, the control device controls the carrying device such that the carrying device carries the object until the detection device does not detect the object any more and the carrying device then stops carrying the object.

Abstract: Even when reset during standby, an optical scanning apparatus according to the present invention enables the angles of mirror faces of galvanomirrors to be easily adjusted to reduce the time required to adjust the positions of light beams.

Abstract: According to a beam control device of the present invention, if an exposure device including a light emitting section is instructed to form an image and a predetermined current is then supplied to an application specific integrated circuit and a main control section, then the main control section outputs an light emitting section on signal. Then, the light emitting section outputs light having its intensity changed according to image information.

Abstract: The carrying apparatus comprises a carrying device for carrying an object to be carried, along a carrying route having a straight part and an arc-like corner part, a straight escape part provided in the carrying device, and a control device for letting the object carried along the carrying route escape temporarily to the escape part and for keeping it therein, if necessary.

Abstract: An image forming apparatus and method causes a connecting/conveying device to convey a recovered toner from a cleaner part to a recovered toner housing unit to house therein the recovered toner. A controller controls a recovered toner supply unit and new toner supply unit in accordance with a toner concentration ratio in a developing device, which is detected by toner concentration ratio detecting unit, to supply the recovered toner, which is stored in the recovered toner housing unit, and a new toner, which is stored in new toner housing unit, to the developing device.

Abstract: An image forming apparatus and method cause a connecting/conveying device to convey a recovered toner from a cleaner part to a recovered toner housing to house therein the recovered toner, and cause a control device to separately control a recovered toner supply device and a new toner supply device to supply the recovered toner, which is stored in the recovered toner housing, and/or a new toner, which is stored in a new toner housing, to a developing device. The control device restricts the supply of the recovered toner from the recovered toner housing to the developing device when a no-residual-amount detecting device detects no residual amount of the new toner in the new toner housing.

Abstract: The carrying apparatus includes a carrying device for carrying an object to be carried, along a carrying route having a corner part, a control device for temporarily stopping and holding the object carried by the carrying device, and a detection device for detecting the object positioned at a corner part of the carrying route, wherein if the detection device detects the object when the control device stops carrying the object, the control device controls the carrying device such that the carrying device carries the object until the detection device does not detect the object any more and the carrying device then stops carrying the object.