Abstract: A print head includes a first memory, a second memory, and a plurality of light emitting elements. The first memory stores a first light amount correction data set for causing the plurality of light emitting elements to emit light with a first light amount, and stores a first difference data set showing a difference between a second light amount correction data set for causing the plurality of light emitting elements to emit light with a second light amount and the first light amount correction data set. The second memory stores the first light amount correction data set, or the second light amount correction data set obtained from the first light amount correction data set and the first difference data set. The plurality of light emitting elements emit light based on the first or second light amount correction data set stored in the second memory.

Abstract: According to an embodiment, a signal generation circuit includes a generation unit configured to generate a second clock signal from division of a first clock signal and generate a timing signal with a cycle length that is a sum of a predetermined number of half-cycle periods of the second clock signal. A period changing unit of the signal generation circuit is configured to adjust the cycle length of the timing signal by changing a length of at least one half-cycle period of the second clock signal. An output unit of the signal generation circuit is configured to output the second clock signal and the timing signal.

Abstract: According to one embodiment, an image forming apparatus includes a rotatable photoconductor, a laser light source configured to output a laser beam according to an image, a polygon mirror positioned to reflect the laser beam while rotating and cause the laser beam to be incident on the photoconductor along a main scanning direction to form an electrostatic latent image, a photodetector configured to detect the laser beam reflected by the polygon mirror, a developer, a transfer mechanism, and a processor. The processor (a) controls the laser light source such that a light emission intensity of the laser light source is constant when the laser beam is incident on the photodetector, regardless of a rotation speed of the polygon mirror and (b) controls the output timing of the laser beam based on a detection result of the photodetector.

Abstract: According to one embodiment, a driving apparatus includes a generating unit and a control unit. The generating unit respectively generates a plurality of pieces of driving data for causing each of a plurality of exposure heads to emit light for forming a plurality of element images. The control unit causes light emission start timings of the plurality of exposure heads based upon each of the plurality of pieces of driving data generated by the generating unit to be different between at least one of the exposure heads and other exposure heads.

Abstract: According to an embodiment, a signal generation circuit includes a generation unit configured to generate a second clock signal from division of a first clock signal and generate a timing signal with a cycle length that is a sum of a predetermined number of half-cycle periods of the second clock signal. A period changing unit of the signal generation circuit is configured to adjust the cycle length of the timing signal by changing a length of at least one half-cycle period of the second clock signal. An output unit of the signal generation circuit is configured to output the second clock signal and the timing signal.

Abstract: An image forming apparatus includes a process unit that includes a photosensitive drum, a charger, and a developing device, a print head, a first sub-scanning color shift correction circuit, a sub-scanning resolution conversion circuit, and a second sub-scanning color shift correction circuit. The first sub-scanning color shift correction circuit reads image data from a page memory and corrects the read image data in a first line period based on a first color shift parameter set in advance. The sub-scanning resolution conversion circuit converts the image data corrected by the first sub-scanning color shift correction circuit into image data of a second line period. The second sub-scanning color shift correction circuit corrects the image data converted by the sub-scanning resolution conversion circuit in the second line period based on a second color shift parameter set in advance and outputs the corrected image data to the print head.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: In accordance with an embodiment, an image forming apparatus comprises a main scanning counter, a controller, and an interval determination section. The main scanning counter counts a first count value indicating the number of times a synchronization signal for synchronization between the apparatuses is input to itself, and registers the first count value to an initial value if a main scanning reference signal indicating a progress state of exposure in a main scanning direction is input to itself. The controller generates PreHSYNC generated at the same interval as the main scanning reference signal. The interval determination section determines that an abnormality occurs in the main scanning reference signal if the first count value satisfies a predetermined condition at a timing at which the PreHSYNC is input to itself.

Abstract: According to one embodiment, there is provided an image correction device including a PWM control unit configured to acquire predefined correction information corresponding to an image forming target line among a plurality of lines forming image data from an SRAM, adjust a timing for forming an image for the image forming target line on the basis of the acquired correction information, and form an image for the image forming target line according to the adjusted timing.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A heating apparatus which is assembled by inserting a columnar heating wire heater 2 into a hole 30 provided in a case 3, and heats cooling water introduced into the case 3 by the heating wire heater 2, wherein the heating wire heater 2 is inserted into boss portions 42 and 43 provided in the case 3, both end portions are supported by O-rings 50 disposed between inner peripheral walls of the boss portions 42 and 43 and an outer peripheral wall of the heating wire heater 2, a gap 45 for passing the cooling water is formed along an outer peripheral surface of the heating wire heater 2 between the two boss portions 42 and 43 within the case 3, and a tapered portion 60 and a rounded portion 61 are formed on an end portion on an insertion-direction distal end side of the heating wire heater 2.

Abstract: A decoloring apparatus includes a reading unit that reads an image formed on a sheet and outputs image information corresponding to the read image. A control unit is configured to recognize the image information output by the reading unit and determine whether decoloring using the decoloring unit is performed on the sheet based on the recognized image information.

Abstract: A heating apparatus which is assembled by inserting a columnar heating wire heater 2 into a hole 30 provided in a case 3, and heats cooling water introduced into the case 3 by the heating wire heater 2, wherein the heating wire heater 2 is inserted into boss portions 42 and 43 provided in the case 3, both end portions are supported by O-rings 50 disposed between inner peripheral walls of the boss portions 42 and 43 and an outer peripheral wall of the heating wire heater 2, a gap 45 for passing the cooling water is formed along an outer peripheral surface of the heating wire heater 2 between the two boss portions 42 and 43 within the case 3, and a tapered portion 60 and a rounded portion 61 are formed on an end portion on an insertion-direction distal end side of the heating wire heater 2.

Abstract: A fuel cell system includes a reformer that generates reformed gas using reforming fuel; a fuel cell that generates electric power using the reformed gas generated by the reformer; and a control device. The control device includes a plurality of different stop control modes for stopping operation of the fuel cell system, and selects a specific stop control mode among the plurality of stop control modes, according to the cause of a malfunction of the fuel cell system.

Abstract: An image forming apparatus according to the embodiment includes a plurality of print heads and a processor. Each of the print heads includes a plurality of light emitting devices and a storing unit configured to store light amount correction data of each of the light emitting devices. The processor acquires each of the light amount correction data stored in the storing units of the print heads, verifies whether each of the acquired light amount correction data is regular data, and, if the light amount correction data is regular data, outputs the regular data to the print head at an acquisition source and, if the light amount correction data is irregular data, acquires the light amount correction data from the print head at the acquisition source of the irregular data again and performs the verification concerning the light amount correction data.

Abstract: According to one embodiment, when performing monochrome image forming, image processing circuits for color image forming, laser control circuits for the color image forming and data processing circuits for the color image forming in an integrated circuit are not operated.