Abstract: A rotary impact tool includes an anvil that receives rotational impact force from a hammer of an impact mechanism. A driver cover covers the impact mechanism. A bearing is press fitted into and fixed to the driver cover to hold the anvil. A bearing separation restricting component restricts separation of the bearing from the driver cover. The bearing separation restricting component is hidden inside the driver cover and is invisible from an outer surface of the driver cover.

Abstract: An impact rotation tool includes a motor, an impact mechanism, and a housing, which covers the motor and the impact mechanism. The impact mechanism includes an output shaft, which is rotatable by the motor, and an anvil, which is rotatable integrally with the output shaft. The impact mechanism applies a striking impact to the anvil when the motor outputs rotation. The impact rotation tool further includes a motor seat and a vibration reducer. The motor seat is fastened to the motor to hold the motor in the housing. The vibration reducer is located in the housing to reduce striking vibration transmitted to the motor.

Abstract: A multi charged particle beam writing apparatus includes a modulation rate data calculation processing circuitry to calculate, for each pixel being a unit region, a modulation rate of a beam to a pixel concerned and each modulation rate of a beam to at least one pixel at a periphery of the pixel concerned, and a corrected-dose calculation processing circuitry to calculate, for the each pixel, a corrected dose by adding a multiplied value obtained by multiplying the modulation rate of the pixel concerned in a modulation rate map by beam dose to the pixel concerned, and a multiplied value obtained by multiplying the modulation rate of the pixel concerned which becomes one of the at least one pixel at the periphery with respect to another pixel defined for the position of the pixel concerned by a beam dose to the another pixel.

Abstract: An image forming apparatus has an image forming unit that forms an image on a sheet, a fixing unit that performs fixing of the sheet on which the image is formed, a first conveyance route that has a reverse conveyance route and a second conveyance route that does not pass the reverse conveyance route, and a control unit that performs first control for conveying a previously printed sheet which is printed previously via the first conveyance route and second control for conveying a subsequently printed sheet which is printed subsequently via the second conveyance route, and exerts control to feed the previously printed sheet and the subsequently printed sheet in an overlapped manner after the first conveyance route and the second conveyance route merge together.

Abstract: An image forming apparatus includes a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where a image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: A multi charged particle beam writing apparatus according to one aspect of the present invention includes a plurality of first blankers to respectively perform blanking deflection of a corresponding beam in multiple beams having passed through the plurality of openings of the aperture member, a plurality of second blankers to deflect a defective beam in the multiple beams having passed through the plurality of openings of the aperture member to be in a direction orthogonal to a deflection direction of the plurality of first blankers, a blanking aperture member to block each of beams which were deflected to be in a beam off state by at least one of the plurality of first blankers and the plurality of second blankers, and a detection processing unit to detect a defective beam in the multiple beams having passed through the plurality of openings of the aperture member.

Abstract: An image forming apparatus includes a unit configured to correct a relative position of a first image and a second image, and a controller configured to form a first measurement image in a case where a first condition is satisfied, and to form the first measurement image and a second measurement image in a case where a second condition is satisfied. The controller is further configured to, in a case where the first condition is satisfied, determine whether or not the second condition is satisfied before the first condition is satisfied next, and in a case where the second condition is satisfied before the first condition is satisfied next, cause an image forming unit to form the first measurement image and the second measurement image.

Abstract: A method for fabricating a blanking aperture array device for multi-beams includes forming, using a substrate over which a first insulating film, a first metal film, a second insulating film, and a second metal film are laminated in order, electrodes and pads on the second metal film, removing a part of the second metal film, removing the second insulating film using, as a mask, the electrodes, the pads, and a remaining part of the second metal film, and forming openings each being between a pair of electrodes, wherein, a part of the second metal film is etched such that some part of it remains in regions each connecting one of the electrodes and one of the pads, and a region in which entire openings are formed except the openings themselves is configured by the electrodes, pads, and first and second metal films such that the insulating film is not exposed.

Abstract: A multi charged particle beam writing method includes emitting each corresponding beam in an “on” state while starting and continuing tracking control, shifting a writing position by beam deflection of the multi beams, in addition to tracking control, while continuing tracking control, emitting each corresponding beam in the next “on” state to the next writing position having been shifted while continuing tracking control, and returning the tracking position by resetting tracking control, after emitting each next corresponding beam to the next writing position having been shifted at least once, wherein writing of a predetermined region is completed by repeating the number of preset times a group of performing emitting, shifting, emitting, and returning, wherein the tracking time from start to reset of tracking control in at least one of the repeated groups is longer than the others.

Abstract: An image forming apparatus comprising: an image carrier; an image forming unit configured to form a toner image on the image carrier by using toner, based on image information; a transfer unit configured to transfer the toner image formed on the image carrier to a sheet; a cleaning unit configured to clean toner on the image carrier; a collected toner box in which the toner cleaned by the cleaning unit is collected; a rotating member configured to be rotated for moving the toner in the collected toner box; and a controller configured to control, based on the image information, whether or not to rotate the rotating member.

Abstract: An image forming apparatus includes a printing unit that prints at least one object image using a color material; a color information acquiring unit that acquires color information of the object image; and a control unit that starts one of colorimetry of the object image using the color information acquired by the color information acquiring unit and color adjustment of the printing unit after a variation amount of color information of the object image measured at different points of time is equal to or smaller than a predetermined threshold.

Abstract: A blanking system for multi charged particle beams includes a blanking aperture array device to include a first substrate where a plurality of openings corresponding to passage positions of multi-beams are formed in a penetrating manner from the upper surface, and a plurality of electrode groups each having a pair of electrodes which are close to a corresponding one of the plurality of openings and are at opposite sides, on a same surface, of the corresponding one of the plurality of openings are arranged on the first substrate, a second substrate whose lower surface is electrically connected through a bump to the upper surface of the first substrate, and a mounting substrate whose upper surface is electrically connected through a bump to the lower surface of the second substrate.

Abstract: A blanking device for multi-beams includes a substrate, a dielectric film formed on the substrate, plural first electrodes, at positions each exposed in a corresponding opening, to be applied with a first deflection potential, plural second electrodes, at positions each opposite to a corresponding first electrode with respect to the corresponding opening, to be applied with a second deflection potential, including a ground potential, for deflecting a corresponding beam of the multi-beams by a difference between the first and second deflection potentials, and a conductive film arranged in, other than plural first regions on the dielectric film each along a corresponding first electrode and being shaded by each first electrode in a case of being viewed from a position where a corresponding beam passes through a corresponding opening, a second region on the dielectric film, wherein insulation is provided between the plural first and second electrodes.

Abstract: A blanking device for multi charged particle beams includes a plurality of individual blanking mechanisms configured to individually deflect a corresponding beam of multi charged particle beams so as to control ON/OFF of the corresponding beam, and a common blanking mechanism configured to include a plurality of electrode groups, each composed of facing electrodes, where an array pitch of a plurality of electrode groups is smaller than or equal to a pitch of the multi charged particle beams, and to collectively deflect the multi charged particle beams in order to control an exposure time.

Abstract: An image forming apparatus includes a generation unit configured to generate correlation data indicating a relationship between a relative position of a first image and a second image corresponding to a first speed and a relative position of the first image and the second image corresponding to a second image forming speed; a controller configured to, in a case where a image forming unit forms an image at the second speed, correct a relative position of the first image and the second image based on first information and on correlation data; and a prohibition unit configured to prohibit formation of the measurement image at the second speed in a case where a housing unit does not house a predetermined recording material corresponding to the second speed.

Abstract: In one embodiment, a blanking aperture array includes a substrate including an upper surface on which an insulating film is provided, a plurality of blanking aperture portions provided in the substrate, each of the plurality of blanking aperture portions including one of penetration holes, through which a predetermined beam passes, and one of blanking electrodes and one of ground electrodes which are provided on the insulating film, and the blanking electrodes and the ground electrodes configured to perform blanking deflection of the predetermined beam, and a high-resistivity film provided so as to cover the insulating film and at least part of the ground electrodes, the high-resistivity film having an electric resistance that is higher than an electric resistance of the ground electrodes and lower than an electric resistance of the insulating film.

Abstract: A multi charged particle beam writing apparatus according to one aspect of the present invention includes a plurality of first blankers to respectively perform blanking deflection of a corresponding beam in multiple beams having passed through the plurality of openings of the aperture member, a plurality of second blankers to deflect a defective beam in the multiple beams having passed through the plurality of openings of the aperture member to be in a direction orthogonal to a deflection direction of the plurality of first blankers, a blanking aperture member to block each of beams which were deflected to be in a beam off state by at least one of the plurality of first blankers and the plurality of second blankers, and a detection processing unit to detect a defective beam in the multiple beams having passed through the plurality of openings of the aperture member.

Abstract: A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated.

Abstract: A multi charged particle beam writing apparatus includes a divided shot data generation unit to generate, for each shot of multi beams of charged particle beams, data for plural times of divided shots such that irradiation for one shot of each beam is divided into plural times of divided shots each having a different irradiation time, an individual blanking system to provide blanking control individually for each of multi beams, based on the data for plural times of divided shots, an elastic rate correction value acquisition unit to acquire, for each of plural times of divided shots, an elastic rate correction value for correcting an elastic rate of an image of the whole multi beams, depending upon the number of ON-beams of the multi beams, and a lens to correct, for each divided shot, the elastic rate of the image of the whole multi beams by using the correction value.

Abstract: A blanking device for multi-beams includes a substrate, a dielectric film formed on the substrate, plural first electrodes, at positions each exposed in a corresponding opening, to be applied with a first deflection potential, plural second electrodes, at positions each opposite to a corresponding first electrode with respect to the corresponding opening, to be applied with a second deflection potential, including a ground potential, for deflecting a corresponding beam of the multi-beams by a difference between the first and second deflection potentials, and a conductive film arranged in, other than plural first regions on the dielectric film each along a corresponding first electrode and being shaded by each first electrode in a case of being viewed from a position where a corresponding beam passes through a corresponding opening, a second region on the dielectric film, wherein insulation is provided between the plural first and second electrodes.