Abstract: A fixing control device includes an image detection unit that determines presence of an image in each of areas obtained by division of an image formation region in which the image is formed, a heater selection unit that selects from heaters of a fixing device heaters at positions corresponding to areas in which the presence of the image is determined, a heating amount computation unit that computes a heating amount of a heating area heated by each of the selected heaters in a fixing region corresponding to the image formation region, a change amount computation unit that computes an amount of change of the heating amount between adjoining ones of the heating areas, and a heating amount correction unit that corrects one of the heating amounts of the adjoining heating areas so that the amount of change after the correction is less than a predetermined threshold.

Abstract: A fixing control device includes an image detection unit that determines presence of an image in each of areas obtained by division of an image formation region in which the image is formed, a heater selection unit that selects from heaters of a fixing device heaters at positions corresponding to areas in which the presence of the image is determined, a heating amount computation unit that computes a heating amount of a heating area heated by each of the selected heaters in a fixing region corresponding to the image formation region, a change amount computation unit that computes an amount of change of the heating amount between adjoining ones of the heating areas, and a heating amount correction unit that corrects one of the heating amounts of the adjoining heating areas so that the amount of change after the correction is less than a predetermined threshold.

Abstract: An apparatus and a method for controlling a light source used for image reading according to a user activity are provided. The light source controller being coupled to a light source and configured to change the power of the light source from an OFF state to an ON state when a user activity signal having a first state is output, the user activity signal having the first state being assumed to be output when a user activity, other than an instruction to begin scanning, that is assumed to ultimately cause output of the image reading start signal has been performed on the image reading apparatus.

Abstract: An image reading apparatus having a memory to store therein image data acquired by reading an original is provided. In a regular reading mode, the memory is divided into a first buffer that stores therein first image data of an image of a first side of the original and a second buffer that stores therein second image data of an image of a second side of the original. In a ring buffer mode, only the first image data is stored in the first buffer and the second buffer in a seamless manner, and the first image data stored in the buffers is output from the buffers to an image processing unit through an output path in a parallel manner. When a size of an original to be read is larger than a predetermined size, reading is performed in the ring buffer mode.

Abstract: An image forming apparatus connectable to a first feed tray and a second feed tray includes an image forming unit, a feed path, and a detecting unit provided on the feed path to sense recording medium jam. An identifying unit identifies a feed path and a feed tray where recording medium jam has occurred as a jammed path and a jamming feed tray. A first determining unit determines whether the image forming apparatus is connected to the second feed tray. A second determining unit determines whether the second feed tray can feed a recording medium to the image forming unit. A feeding unit feeds a recording medium from the second feed tray to the image forming unit.

Abstract: An image reading apparatus having a memory to store therein image data acquired by reading an original is provided. In a regular reading mode, the memory is divided into a first buffer that stores therein first image data of an image of a first side of the original and a second buffer that stores therein second image data of an image of a second side of the original. In a ring buffer mode, only the first image data is stored in the first buffer and the second buffer in a seamless manner, and the first image data stored in the buffers is output from the buffers to an image processing unit through an output path in a parallel manner. When a size of an original to be read is larger than a predetermined size, reading is performed in the ring buffer mode.

Abstract: An image forming apparatus connectable to a first feed tray and a second feed tray includes an image forming unit, a feed path, and a detecting unit provided on the feed path to sense recording medium jam. An identifying unit identifies a feed path and a feed tray where recording medium jam has occurred as a jammed path and a jamming feed tray. A first determining unit determines whether the image forming apparatus is connected to the second feed tray. A second determining unit determines whether the second feed tray can feed a recording medium to the image forming unit. A feeding unit feeds a recording medium from the second feed tray to the image forming unit.

Abstract: An apparatus and a method for controlling a light source used for image reading according to a user activity are provided. The light source is turned on when the user activity that is assumed to cause image reading has been performed.