Abstract: In accordance with an embodiment, an image forming apparatus encompasses a heat roller, a lamp, a use amount acquisition section, a switching controller and a cycle controller. The heat roller heats a sheet printed with a toner image. The lamp heats the heat roller. The use amount acquisition section acquires a use amount of the lamp. The switching controller repeats a processing from a moment at which the lamp is charged until the lamp is charged next after the lamp is not charged in a predetermined control cycle. The cycle controller sets the cycle based on the use amount.

Abstract: An image forming apparatus includes first and second sheet storages, a sheet conveyer, an image reading unit configured to read a surface of a sheet conveyed from the first sheet storage by the sheet conveyer, an image forming unit configured to form an image on the sheet conveyed from the image reading unit, and a controller. The controller is configured to determine an amount of a color material appearing on the surface of the sheet based on image data generated by the image reading unit, determine one of the image forming unit and the second sheet storage as a sheet feeding destination, based on the determined amount of the color material and a threshold value that is associated with at least one of a type and content of an image to be formed on the sheet, and control the sheet conveyer to convey the sheet to the sheet feeding destination.

Abstract: In accordance with an embodiment, an image forming apparatus encompasses a heat roller, a lamp, a use amount acquisition section, a switching controller and a cycle controller. The heat roller heats a sheet printed with a toner image. The lamp heats the heat roller. The use amount acquisition section acquires a use amount of the lamp. The switching controller repeats a processing from a moment at which the lamp is charged until the lamp is charged next after the lamp is not charged in a predetermined control cycle. The cycle controller sets the cycle based on the use amount.

Abstract: A decoloring apparatus includes a sheet conveying unit, a scanner, a decoloring unit, and a controller. The decoloring unit decolors the image on the sheet conveyed through the sheet conveying unit. The decoloring unit is positioned downstream of the scanner in a sheet conveying direction. A distance along the sheet conveying direction between the scanner and the decoloring unit is shorter than a length of a first predetermined sheet size and longer than a length of a second predetermined sheet size. A controller determines whether the sheet conveyed by the sheet conveying unit is the first predetermined sheet size or the second predetermined sheet size. The controller performs a mode limiting process if the sheet size is determined to be the first predetermined sheet size.

Abstract: An erasing apparatus of embodiments has a color erasing device, the color erasing device has: a first heating member; a second heating member provided at a position facing the first heating member so as to form a nip portion therebetween through which the sheet is passed; a halogen lamp configured to heat the second heating member from outside thereof; and a reflector provided at a position opposite to the second heating member with the halogen lamp interposed therebetween and having a reflective surface configured to reflect heat received from the halogen lamp toward the second heating member, the reflector forming a guiding section configured to be in sliding contact with the sheet being conveyed so as to guide the sheet to the nip portion, the guiding section being heated by the halogen lamp.

Abstract: In accordance with one embodiment, a paper processing apparatus comprises a perforation unit configured to include a rotary blade for perforating conveyed paper in a direction parallel to a conveyance direction and be capable of moving the rotary blade in a direction orthogonal to a conveyance path of the paper; a skew detection section configured at the upstream side of the perforation unit to detect the skew of the paper; a skew correction mechanism configured to incline the perforation unit and the rotary blade according to the detected skew amount of the paper; and a control section configured to control the position of the rotary blade and move the rotary blade to a perforation processing position before the paper is conveyed to the perforation unit.

Abstract: A decoloring apparatus includes a sheet conveying unit, a scanner, a decoloring unit, and a controller. The decoloring unit decolors the image on the sheet conveyed through the sheet conveying unit. The decoloring unit is positioned downstream of the scanner in a sheet conveying direction. A distance along the sheet conveying direction between the scanner and the decoloring unit is shorter than a length of a first predetermined sheet size and longer than a length of a second predetermined sheet size. A controller determines whether the sheet conveyed by the sheet conveying unit is the first predetermined sheet size or the second predetermined sheet size. The controller performs a mode limiting process if the sheet size is determined to be the first predetermined sheet size.

Abstract: An image decoloring device operates in a power-saving mode and in a normal mode. The image decoloring device includes a decoloring processing unit which removes a color of a decolorable colorant that forms an image on a sheet by applying heat to the sheet. A sheet carrying unit conveys the sheet through the decoloring processing unit. A processor controls the sheet carrying unit. If the image decoloring device is operating in the power-saving mode, a conveyance speed of the sheet through the decoloring processing unit is a first speed. If the image decoloring carrying unit is operating in the normal mode, the conveyance speed of the sheet through the decoloring processing unit is a second speed greater than the first speed.

Abstract: An image erasing apparatus according to an embodiment includes a sheet supply portion that supplies a sheet and an ejector. A first conveying path conveys the sheet from the sheet supply portion toward the ejector. A reader arranged on the first conveying path reads an image on the sheet. A second conveying path branches from the first conveying path at a downstream of the reader on the first conveying path and merges with the first conveying path at an upstream of the reader on the first conveying path. An erasing unit is arranged on the second conveying path. A conveying path changing portion is arranged at a branching portion. An operating portion receives a setup of the processing to the sheet. A controller changes a conveying path of the sheet in accordance with the setup received by the operating portion before the sheet is supplied from the sheet supply portion.

Abstract: An image forming apparatus includes: a first image forming unit which forms a first image on a first recording medium with a first material that is not thermally decolorizable; a second image forming unit which forms a second image on a second recording medium with a second material that is thermally decolorizable; a fixing device which is on a common carrying path shared by the first recording medium and the second recording medium and fixes the first image to the first recording medium; and a controller which controls the fixing device so that a temperature of the fixing device is lower than a decolorizing temperature of the second material when the second recording medium reaches the fixing device.

Abstract: An image forming apparatus includes first and second sheet storages, a sheet conveyer, an image reading unit configured to read a surface of a sheet conveyed from the first sheet storage by the sheet conveyer, an image forming unit configured to form an image on the sheet conveyed from the image reading unit, and a controller. The controller is configured to determine an amount of a color material appearing on the surface of the sheet based on image data generated by the image reading unit, determine one of the image forming unit and the second sheet storage as a sheet feeding destination, based on the determined amount of the color material and a threshold value that is associated with at least one of a type and content of an image to be formed on the sheet, and control the sheet conveyer to convey the sheet to the sheet feeding destination.

Abstract: In accordance with one embodiment, a paper processing apparatus comprises a perforation unit configured to include a rotary blade for perforating conveyed paper in a direction parallel to a conveyance direction and be capable of moving the rotary blade in a direction orthogonal to a conveyance path of the paper; a skew detection section configured at the upstream side of the perforation unit to detect the skew of the paper; a skew correction mechanism configured to incline the perforation unit and the rotary blade according to the detected skew amount of the paper; and a control section configured to control the position of the rotary blade and move the rotary blade to a perforation processing position before the paper is conveyed to the perforation unit.

Abstract: An image processing apparatus comprises a container which is constituted by a bottom connected with a side wall of the image processing apparatus and extending upwards in the vertical direction at a predetermined angle from the side wall and a side wall section vertically arranged on the bottom, and houses a sheet to be processed in a space formed by the side wall of the image processing apparatus and the side wall section; and a pickup section configured to make a roller enter to the inside of the container when the pickup section executes a pickup operation for conveying the sheet to be processed to a main body section of the image processing apparatus and make the roller located inside the image processing apparatus when the pickup section does not execute the pickup operation.

Abstract: An image erasing apparatus according to an embodiment includes a sheet supply portion that supplies a sheet and an ejector. A first conveying path conveys the sheet from the sheet supply portion toward the ejector. A reader arranged on the first conveying path reads an image on the sheet. A second conveying path branches from the first conveying path at a downstream of the reader on the first conveying path and merges with the first conveying path at an upstream of the reader on the first conveying path. An erasing unit is arranged on the second conveying path. A conveying path changing portion is arranged at a branching portion. An operating portion receives a setup of the processing to the sheet. A controller changes a conveying path of the sheet in accordance with the setup received by the operating portion before the sheet is supplied from the sheet supply portion.

Abstract: An image forming apparatus includes: a first image forming unit which forms a first image on a first recording medium with a first material that is not thermally decolorizable; a second image forming unit which forms a second image on a second recording medium with a second material that is thermally decolorizable; a fixing device which is on a common carrying path shared by the first recording medium and the second recording medium and fixes the first image to the first recording medium; and a controller which controls the fixing device so that a temperature of the fixing device is lower than a decolorizing temperature of the second material when the second recording medium reaches the fixing device.

Abstract: An image forming apparatus includes a heat roller, a lamp, and a control unit. The heat roller fixes a toner image transferred onto a sheet. The lamp heats the heat roller. The control unit controls switching of the lamp on and off according to one of a first duty control and a second duty control that the control unit selects based on a mode of operation of the image forming apparatus.

Abstract: An erasing apparatus of embodiments has a color erasing device, the color erasing device has: a first heating member; a second heating member provided at a position facing the first heating member so as to form a nip portion therebetween through which the sheet is passed; a halogen lamp configured to heat the second heating member from outside thereof; and a reflector provided at a position opposite to the second heating member with the halogen lamp interposed therebetween and having a reflective surface configured to reflect heat received from the halogen lamp toward the second heating member, the reflector forming a guiding section configured to be in sliding contact with the sheet being conveyed so as to guide the sheet to the nip portion, the guiding section being heated by the halogen lamp.

Abstract: An image forming apparatus according to an embodiment includes a feeder unit that stores a sheet on which no image is formed. A printer device forms an image on the sheet stored by the feeder unit. An erasing apparatus is connectably and detachably attached to the image forming apparatus. The erasing apparatus includes a first sheet stack that stores an unerased sheet on which an image is formed and an erasing device that erases the image formed on the unerased sheet.

Abstract: An image processing apparatus comprises a container mounted on a side wall of the image processing apparatus and comprising a bottom extending upwards in the vertical direction at a predetermined angle from the side wall for supporting an end of a sheet and a wall member vertically arranged on the bottom and forming a space with the bottom, and configured to house a sheet in the space through an opening formed on the upper side of the container; and a pickup unit located adjacent to the bottom of the container and having a pickup roller and configured to move the pickup roller to the inside of the container if a pickup operation for conveying the sheet to the inside of the image processing apparatus is executed, and keep the pickup roller at a waiting position outside of the space of the container if the pickup operation is not executed.

Abstract: An image forming apparatus includes a first sheet storage, a second sheet storage, an image forming unit, a sheet conveyer configured to convey sheets from the first and second sheet storages to the image forming unit, and a controller. The controller is configured to set new sheets as a type of sheets stored in the first sheet storage and image-decolored sheets as a type of sheets stored in the second sheet storage, switch a sheet feeding source from the first sheet storage to the second sheet storage when the first sheet storage runs out of sheets during execution of a first image forming job that includes no sheet post-processing, and stop image forming by the image forming unit when the first sheet storage runs out of sheets during execution of a second image forming job that includes sheet post-processing.