Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: An image erasing apparatus according to an embodiment includes a sheet feeding cassette that accommodates a sheet on which an image is formed. A detector acquires cassette identification information which identifies the sheet feeding cassette, from the sheet feeding cassette. A scanner reads the image formed on the sheet and acquires print identification information based on the read image. An erasing device erases the image formed on the sheet. A controller determines whether the print identification information matches the cassette identification information. The controller controls the erasing device to erase the image if the print identification information matches the cassette identification information, and controls the erasing device to not erase the image if the print identification information does not match the cassette identification information.

Abstract: Provided are an image erasing apparatus which erases an image printed on a sheet and an image forming apparatus having an image erasing function. The image erasing apparatus and the image forming apparatus each include a readout unit, an erasing unit, and a control unit. The control unit acquires authentication information of a user who uses the apparatuses and allows the erasing unit to erase the image when determining that the acquired authentication information coincides with authentication information read out by the readout unit.

Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: According to one embodiment, an image forming apparatus includes a heating section that heats an image on a sheet formed of decolorable color material; an image forming section that transfers the image formed of the decolorable color material to the sheet; a diagnosis image generating section that instructs the image forming section to generate a diagnosis image formed of a predetermined image on a sheet; a control section that controls the heating section to switch a fixing temperature for fixing the image formed of the decolorable color material on the sheet to a decoloring temperature for decoloring the image formed of the decolorable color material on the sheet; and a first transporting route that transports the sheet on which the diagnosis image of the decolorable color material is formed through the image forming section to the heating section maintained at the decoloring temperature.

Abstract: In accordance with one embodiment, a color erasing apparatus comprises a reading section, a storage section and a control section. The reading section reads an image formed on a sheet to acquire image data. The storage section stores the image data acquired by the reading section. The control section determines whether or not there exists a mark in the image data, and carries out a control to, in a case in which there exists a mark in the image data, delete the image data read by the reading section from the storage section if it is determined that there exists a mark and the image data acquired by the reading section coincides with the image data stored through the processing of an image forming apparatus when determining whether or not the image data read by the reading section coincides with the image data stored in the storage section in advance, or store the image data read by the reading section in the storage section if it is determined that the image data doesn't coincide with each other.

Abstract: In accordance with one embodiment, a color erasing apparatus comprises a reading section, a storage section and a control section. The reading section reads an image formed on a sheet to acquire image data. The storage section stores the image data acquired by the reading section. The control section determines whether or not there exists a mark in the image data, and carries out a control to, in a case in which there exists a mark in the image data, delete the image data read by the reading section from the storage section if it is determined that there exists a mark and the image data acquired by the reading section coincides with the image data stored through the processing of an image forming apparatus when determining whether or not the image data read by the reading section coincides with the image data stored in the storage section in advance, or store the image data read by the reading section in the storage section if it is determined that the image data doesn't coincide with each other.

Abstract: According to an embodiment, an image erasing apparatus that erases an image printed on a sheet is provided. When it is determined that a sheet after an erasing process of the image is not reusable, the image erasing apparatus accommodates the sheet in a reject tray in a state where a face with a small information amount of the erased image is directed in a state direction. When it is determined that the sheet after the erasing process of the image is not reusable, the image erasing apparatus accommodates the sheet in a reuse tray in a state where a face with a large information amount of the erased image is directed in the state direction.

Abstract: According to an embodiment, an image erasing apparatus that erases an image formed on a recording medium is provided. The image erasing apparatus includes an erasing unit that erases an image, a reading unit that reads a size of the recording medium, a classification device that classifies the erasing-processed recording medium, and a control unit. The control unit recognizes the size of the erasing-processed recording medium based on data about the size, and controls the classification device to classify each recording medium from which the image has been erased for each different size.

Abstract: According to the above-described embodiment, provided is an image forming apparatus that has an image forming function of forming an image on a recording medium and an erasing function of erasing an image formed on a recording medium. The image forming apparatus includes an image forming unit, a delivery unit, and an image erasing unit. The delivery unit delivers information requiring users to supply a recording medium having an image formed thereon by an erasable color material to the apparatus.

Abstract: According to one embodiment, an image forming apparatus having an image forming function to form an image on a recording medium, and an image erasing function to erase an image formed on a recording medium is provided. The image forming apparatus has an erasing unit which erases the image formed on the recording medium under an erasing condition changeable in accordance with whether or not erasable coloring material used in the image formed on the recording medium is predetermined coloring material, when the image erasing function is performed.

Abstract: According to an embodiment, an image erasing apparatus that erases an image printed on a sheet is provided. When it is determined that a sheet after an erasing process of the image is not reusable, the image erasing apparatus accommodates the sheet in a reject tray in a state where a face with a small information amount of the erased image is directed in a state direction. When it is determined that the sheet after the erasing process of the image is not reusable, the image erasing apparatus accommodates the sheet in a reuse tray in a state where a face with a large information amount of the erased image is directed in the state direction.

Abstract: According to one embodiment, an image forming apparatus having an image forming function to form an image on a recording medium, and an image erasing function to erase an image formed on a recording medium is provided. The image forming apparatus has an erasing unit which erases the image formed on the recording medium under an erasing condition changeable in accordance with whether or not erasable coloring material used in the image formed on the recording medium is predetermined coloring material, when the image erasing function is performed.

Abstract: According to the above-described embodiment, provided is an image forming apparatus that has an image forming function of forming an image on a recording medium and an erasing function of erasing an image formed on a recording medium. The image forming apparatus includes an image forming unit, a delivery unit, and an image erasing unit. The delivery unit delivers information requiring users to supply a recording medium having an image formed thereon by an erasable color material to the apparatus.

Abstract: Provided are an image erasing apparatus which erases an image printed on a sheet and an image forming apparatus having an image erasing function. The image erasing apparatus and the image forming apparatus each include a readout unit, an erasing unit, and a control unit. The control unit acquires authentication information of a user who uses the apparatuses and allows the erasing unit to erase the image when determining that the acquired authentication information coincides with authentication information read out by the readout unit.

Abstract: According to an embodiment, an image erasing apparatus that erases an image formed on a recording medium is provided. The image erasing apparatus includes an erasing unit that erases an image, a reading unit that reads a size of the recording medium, a classification device that classifies the erasing-processed recording medium, and a control unit. The control unit recognizes the size of the erasing-processed recording medium based on data about the size, and controls the classification device to classify each recording medium from which the image has been erased for each different size.

Abstract: An image forming apparatus includes a latent image forming section configured to form an electrostatic latent image on an image carrying body based on a print job including a number of sheets to be printed and a pixel count. A developing device develops the electrostatic latent image with a two-component developer containing toner and a carrier. A toner transporting section transports replenishment toner to the developing device. A toner replenishment time is based on the pixel count of the print job, and a job duration is based on the number of sheets to be printed. A drive control section controls transportation of replenishment toner during each of a plurality of divided replenishment times. The total of the plurality of divided replenishment times is equal to the toner replenishment time, and the plurality of divided replenishment times are uniformly spread across the job duration.