Abstract: In accordance with an embodiment, an image forming apparatus comprises an image forming section, a fixing section and a controller. The image forming section forms a toner image with at least one selected from a first toner having a first fixing temperature area and a second toner having a second fixing temperature area of which a lower limit fixing temperature is higher than the first toner. The fixing section fixes the toner image on the sheet. The controller controls a standby temperature of the fixing section to a temperature lower than the lower limit fixing temperature of the second fixable temperature area.

Abstract: In accordance with an embodiment, an image forming apparatus comprises an image forming section, a fixing section and a controller. The image forming section forms a toner image with at least one selected from a first toner having a first fixing temperature area and a second toner having a second fixing temperature area of which a lower limit fixing temperature is higher than the first toner. The fixing section fixes the toner image on the sheet. The controller controls a standby temperature of the fixing section to a temperature lower than the lower limit fixing temperature of the second fixable temperature area.

Abstract: An image forming apparatus includes a fixing device configured to fix a toner to a recording medium, a cooling device disposed so as to cool the fixing device with forced air, and a rotatable guide configured to guide the recording medium towards a first location when in a first position and towards a second location when in a second position. The rotatable guide partially blocks the forced air at the first position and forms a pathway for the forced air when at the second position. A control unit rotates the guide unit to the second position if an operating mode of the fixing device is changed from a first mode having a fixing temperature set point at a first temperature to a second mode having a fixing set point temperature lower than the first temperature.

Abstract: In accordance with an embodiment, an image forming apparatus comprises an image forming section, a fixing section and a controller. The image forming section forms a toner image with at least one selected from a first toner having a first fixing temperature area and a second toner having a second fixing temperature area of which a lower limit fixing temperature is higher than the first toner. The fixing section fixes the toner image on the sheet. The controller controls a standby temperature of the fixing section to a temperature lower than the lower limit fixing temperature of the second fixable temperature area.

Abstract: An image forming apparatus includes a fixing device configured to fix a toner to a recording medium, a cooling device disposed so as to cool the fixing device with forced air, and a rotatable guide configured to guide the recording medium towards a first location when in a first position and towards a second location when in a second position. The rotatable guide partially blocks the forced air at the first position and forms a pathway for the forced air when at the second position. A control unit rotates the guide unit to the second position if an operating mode of the fixing device is changed from a first mode having a fixing temperature set point at a first temperature to a second mode having a fixing set point temperature lower than the first temperature.

Abstract: A fixing device includes a roller, a pressing member pressed against the roller, such that when a sheet having an unfixed image is passed thorough a nip formed between the roller and the pressing member, the unfixed image is fixed on the sheet, a first heater configured to heat the roller, a second heater configured to heat the pressing member, and a controller configured to control the second heater, such that a time-averaged heat generation by the second heater when an image of a decolorable material is fixed is greater than a time-averaged heat generation by the second heater when an image of a non-decolorable material is fixed.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: In accordance with an embodiment, an image forming apparatus comprises an image forming section, a fixing section and a controller. The image forming section forms a toner image with at least one selected from a first toner having a first fixing temperature area and a second toner having a second fixing temperature area of which a lower limit fixing temperature is higher than the first toner. The fixing section fixes the toner image on the sheet. The controller controls a standby temperature of the fixing section to a temperature lower than the lower limit fixing temperature of the second fixable temperature area.

Abstract: In accordance with an embodiment, a character recognition apparatus comprises a decolorization control section configured to carry out a decolorization processing for a sheet; an image reading control section configured to carry out an image reading processing for the sheet to which the decolorization processing is carried out; and a character recognition processing section configured to carry out a character recognition processing for a decolorized image read through the reading processing after the decolorization processing is carried out or for a generated image generated according to the decolorized image.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: In accordance with an embodiment, an image forming apparatus controls the heating of a fixing section in such a manner that the heating mode is switched to a second heating mode through a switching section in a case in which the temperature of a heating section is lower than a predetermined temperature, and the heating mode is switched to a first heating mode through a switching section in a case in which the temperature of the heating section is equal to or higher than the predetermined temperature.

Abstract: In accordance with an embodiment, a character recognition apparatus comprises a decolorization control section configured to carry out a decolorization processing for a sheet; an image reading control section configured to carry out an image reading processing for the sheet to which the decolorization processing is carried out; and a character recognition processing section configured to carry out a character recognition processing for a decolorized image read through the reading processing after the decolorization processing is carried out or for a generated image generated according to the decolorized image.

Abstract: A fixing device includes a roller, a pressing member pressed against the roller, such that when a sheet having an unfixed image is passed thorough a nip formed between the roller and the pressing member, the unfixed image is fixed on the sheet, a first heater configured to heat the roller, a second heater configured to heat the pressing member, and a controller configured to control the second heater, such that a time-averaged heat generation by the second heater when an image of a decolorable material is fixed is greater than a time-averaged heat generation by the second heater when an image of a non-decolorable material is fixed.

Abstract: In accordance with an embodiment, an image forming apparatus controls the heating of a fixing section in such a manner that the heating mode is switched to a second heating mode through a switching section in a case in which the temperature of a heating section is lower than a predetermined temperature, and the heating mode is switched to a first heating mode through a switching section in a case in which the temperature of the heating section is equal to or higher than the predetermined temperature.

Abstract: A fixing device includes a roller, a pressing member pressed against the roller, such that when a sheet having an unfixed image is passed thorough a nip formed between the roller and the pressing member, the unfixed image is fixed on the sheet, a first heater configured to heat the roller, a second heater configured to heat the pressing member, and a controller configured to control the second heater, such that a time-averaged heat generation by the second heater when an image of a decolorable material is fixed is greater than a time-averaged heat generation by the second heater when an image of a non-decolorable material is fixed.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: In accordance with an embodiment, an image decoloring apparatus comprises a conveyance path configured to convey a sheet on which an image is formed with a coloring agent that is decolored by heat; a first heat roller configured to be arranged at the upstream side of the conveyance path; and a second heat roller configured to be arranged at the downstream side of the conveyance path. Each of the first heat roller and the second heat roller includes a cylindrical portion and a heat source. The thickness of the cylindrical portion constituting the first heat roller is larger than the thickness of the cylindrical portion constituting the second heat roller. In this way, the heat capacity of the first heat roller is also larger than the heat capacity of the second heat roller.

Abstract: A fixing device includes a roller, a pressing member pressed against the roller, such that when a sheet having an unfixed image is passed thorough a nip formed between the roller and the pressing member, the unfixed image is fixed on the sheet, a first heater configured to heat the roller, a second heater configured to heat the pressing member, and a controller configured to control the second heater, such that a time-averaged heat generation by the second heater when an image of a decolorable material is fixed is greater than a time-averaged heat generation by the second heater when an image of a non-decolorable material is fixed.