Abstract: A storage apparatus of an embodiment includes a magnetic disk, a head, and a controller. The head includes a writing unit that outputs a magnetic field to record write data into a recording region of the magnetic disk to which light is irradiated and a reading unit that reads read data from the recording region of the magnetic disk. Based on a first spectrum of first read data read by the reading unit at a first position of the magnetic disk and a second spectrum of second read data read by the reading unit at a second position which is a following position of the first position, the controller detects whether an offset of the writing unit occurs while writing into the recording region of the magnetic disk is performed by the writing unit.

Abstract: A reading apparatus which is connected to an image forming apparatus that forms an image on a recording medium, the reading apparatus including: a supporting section which forms a reading surface for reading the image on the recording medium by contacting the recording medium on which the image is formed by the image forming apparatus; a conveyance section which conveys the recording medium so that the recording medium contacts the supporting section from a leading direction at a predetermined leading angle with respect to the reading surface and moves apart from the supporting section to an ejection direction at a predetermined ejection angle with respect to the reading surface; and a reading section which reads the image on the recording medium at a position where the reading surface is formed.

Abstract: An image forming apparatus, including: an image forming section; a reading section which reads the image formed by the image forming section over a predetermined width in a width direction of the sheet; a colorimeter which reads the image over a width smaller than the predetermined width; a calibration section which calibrates the reading section on the basis of a difference between first reading section measurement data and first colorimeter measurement data; a specification section which specifies adjacent images having a largest difference in brightness of a predetermined threshold value or more from among images for color adjustment formed on the sheet; and a color adjustment section which controls the colorimeter to read at least one of the adjacent images and adjusts a color of the image formed by the image forming section on the basis of second colorimeter measurement data.

Abstract: An image forming apparatus, including: an image forming section; a reading section which reads the image formed by the image forming section over a predetermined width in a width direction of the sheet; a colorimeter which reads the image over a width smaller than the predetermined width; a calibration section which calibrates the reading section on the basis of a difference between first reading section measurement data and first colorimeter measurement data; a specification section which specifies adjacent images having a largest difference in brightness of a predetermined threshold value or more from among images for color adjustment formed on the sheet; and a color adjustment section which controls the colorimeter to read at least one of the adjacent images and adjusts a color of the image formed by the image forming section on the basis of second colorimeter measurement data.

Abstract: An image forming apparatus includes: a measuring section which measures a height position of a surface of a sheet at a reading position at which a reference image for image quality adjustment is read; a control section which determines a planar region of the sheet according to the height position, and determines a forming position of the reference image within the planar region; an image forming section which forms the reference image at a position of a sheet corresponding to the forming position, the sheet being newly fed after determination of the forming position; and a reading section which reads the reference image at the reading position, wherein the control section adjusts image quality by using a read value obtained from the reference image by the reading section.

Abstract: According to one embodiment, there is provided a magnetic disk device including a light source, a light irradiation element, and a controller. The light irradiation element is configured to receive light from the light source to irradiate light onto a magnetic disk. The controller is configured to switch between a first control and a second control according to a pulse width of data to be written onto the magnetic disk. The first control keeps an output of the light source at a first value. The second control makes the output of the light source change periodically between the first value and a second value lower than the first value.

Abstract: According to one embodiment, there is provided a magnetic disk device including a light source, a light irradiation element, and a controller. The light irradiation element is configured to receive light from the light source to irradiate light onto a magnetic disk. The controller is configured to switch between a first control and a second control according to a pulse width of data to be written onto the magnetic disk. The first control keeps an output of the light source at a first value. The second control makes the output of the light source change periodically between the first value and a second value lower than the first value.

Abstract: According to one embodiment, there is provided a magnetic head including a wave guide, a near field transducer, a writing magnetic pole, a magnetic core, a writing coil, and a first temperature control element. The near field transducer is disposed on an ABS surface and to which light is guided from the wave guide. The writing magnetic pole is disposed on the ABS surface. The magnetic core is connected to the writing magnetic pole so as to generate a magnetic field from a portion of the writing magnetic pole close to the ABS surface. The writing coil is disposed so as to go around the magnetic core. The first temperature control element is disposed in contact with a region of a first side surface of the wave guide near the near field transducer.

Abstract: According to one embodiment, there is provided a magnetic head including a wave guide, a near field transducer, a writing magnetic pole, a magnetic core, a writing coil, and a first temperature control element. The near field transducer is disposed on an ABS surface and to which light is guided from the wave guide. The writing magnetic pole is disposed on the ABS surface. The magnetic core is connected to the writing magnetic pole so as to generate a magnetic field from a portion of the writing magnetic pole close to the ABS surface. The writing coil is disposed so as to go around the magnetic core. The first temperature control element is disposed in contact with a region of a first side surface of the wave guide near the near field transducer.

Abstract: An image forming apparatus includes: a measuring section which measures a height position of a surface of a sheet at a reading position at which a reference image for image quality adjustment is read; a control section which determines a planar region of the sheet according to the height position, and determines a forming position of the reference image within the planar region; an image forming section which forms the reference image at a position of a sheet corresponding to the forming position, the sheet being newly fed after determination of the forming position; and a reading section which reads the reference image at the reading position, wherein the control section adjusts image quality by using a read value obtained from the reference image by the reading section.

Abstract: According to one embodiment, in a magnetic disk, a reflecting layer with a higher reflectance to near-field light than a magnetic recording layer is provided in the magnetic recording layer so as to be flat. A magnetic head performs magnetic recording on the magnetic recording layer while locally heating the magnetic recording layer based on the near-field light.

Abstract: According to one embodiment, a magnetic head includes a main pole, a write shield pole on a trailing side of the main pole, a recording coil, and a temperature control element unit. The temperature control element unit includes a first electrode on a leading side of the main pole and on both sides of a track of the main pole, a second electrode on the leading side of the main pole and on a track center of the main pole, an N-type semiconductor and a P-type semiconductor connected to the first and second electrodes, and a wiring portion which applies a current via the second electrode, N-type semiconductor, first electrode, P-type semiconductor, and second electrode. The first and second electrodes form a heat absorbing portion and a heat radiating portion.

Abstract: According to one embodiment, a magnetic recording device includes: a magnetic recording medium provided with data regions for data recording; a light output module which outputs an optical signal to be applied to a recording position where recording data is recorded of the data regions; a write head which records the recoding data at the recording position magnetically; a light quantity setting module which sets a light quantity value of the optical signal output from the light output module; a heat-assisted recording controller which performs a control so that the recording data is recorded by the write head at the recording position which is heat-assisted by applying an optical signal with the set light quantity value; and a controller which adjusts the light quantity value of the optical signal set by the light quantity setting module using the recording position being a part of the data regions.

Abstract: According to one embodiment, there is provided a magnetic recording head which records information on a magnetic recording medium, including an ABS surface, a near-field light generating unit, a heat conducting unit, and a heat absorbing unit. The ABS surface is opposed to the magnetic recording medium. The near-field light generating unit is disposed on the ABS surface. The heat conducting unit is formed by a heat conductor disposed in contact with the near-field light generating unit. The heat absorbing unit is disposed in contact with the heat conducting unit adjacently to the near-field light generating unit in a direction along the ABS surface.

Abstract: According to one embodiment, a magnetic head includes a main pole, a write shield pole on a trailing side of the main pole, a recording coil, and a temperature control element unit. The temperature control element unit includes a first electrode on a leading side of the main pole and on both sides of a track of the main pole, a second electrode on the leading side of the main pole and on a track center of the main pole, an N-type semiconductor and a P-type semiconductor connected to the first and second electrodes, and a wiring portion which applies a current via the second electrode, N-type semiconductor, first electrode, P-type semiconductor, and second electrode. The first and second electrodes form a heat absorbing portion and a heat radiating portion.

Abstract: According to one embodiment, there is provided a magnetic recording head which records information on a magnetic recording medium, including an ABS surface, a near-field light generating unit, a heat conducting unit, and a heat absorbing unit. The ABS surface is opposed to the magnetic recording medium. The near-field light generating unit is disposed on the ABS surface. The heat conducting unit is formed by a heat conductor disposed in contact with the near-field light generating unit. The heat absorbing unit is disposed in contact with the heat conducting unit adjacently to the near-field light generating unit in a direction along the ABS surface.

Abstract: An image forming apparatus includes an image carrier; a toner image forming section; a transfer section which transfers the toner image onto a transfer sheet; a separation section which separates the transfer sheet from the image carrier; and a process cartridge which holds the image carrier, the toner image forming section, the transfer section, and the separation section as a unit detachable from a main unit of the image forming apparatus. The separation section includes a resin guide member which is a base for the separation section, a separation pawl for separating a transfer sheet from the image carrier, a metal reference plate fixed to the resin guide member and a resin engaging member fixed to the reference plate. The resin engaging member engages with a process cartridge member which supports the separation section allowing the separation section to move in an axial direction of the image carrier.

Abstract: According to one embodiment, a magnetic recording device includes: a magnetic recording medium provided with data regions for data recording; a light output module which outputs an optical signal to be applied to a recording position where recording data is recorded of the data regions; a write head which records the recoding data at the recording position magnetically; a light quantity setting module which sets a light quantity value of the optical signal output from the light output module; a heat-assisted recording controller which performs a control so that the recording data is recorded by the write head at the recording position which is heat-assisted by applying an optical signal with the set light quantity value; and a controller which adjusts the light quantity value of the optical signal set by the light quantity setting module using the recording position being a part of the data regions.

Abstract: An image forming apparatus including: an image carrier, rotating in a first direction and a second direction, and the second direction is opposite to the first direction; a transfer device for transferring the toner image; a cleaning device comprising a cleaning blade for cleaning the image carrier; and a cleaning blade exchanging section for exchanging the cleaning blade, wherein the apparatus works in such ways that, after the cleaning blade exchanging section has retracted the cleaning blade to a retracted position, the cleaning blade exchanging section rotates the image carrier in the second direction, whereby any foreign material, adhered onto the image carrier while the cleaning blade is exchanged, is moved upstream of the cleaning position of the cleaning blade, then the cleaning blade is pressed against the image carrier, and the image carrier is subsequently rotated in the first direction, so that the image carrier is cleaned.

Abstract: According to one embodiment, a magnetic recording device includes a write controller to control such that writing first information having a same polarity throughout the first information in a predetermined region including a plurality of tracks in a recording medium, writing second information in a target track located within or close to the predetermined region, and writing third information having, at an end of the writing, a polarity opposite to the polarity of the first information in a region of the target track in which the second information is not written, are performed; a read controller to control such that the second information is read after each of writing of the second information and writing of the third information; and a determiner to determine occurrence of pole erasing based on each second information read under the control by the read controller.