Abstract: According to one embodiment, a decolorizing device includes a first stacker to stack sheets to be decolorized images on the sheets, a second stacker arranged adjacent to the first stacker, wherein the sheets stacked on the first stacker is kept waiting on the second stacker in order to be decolorized the images, a pressing unit to urge the sheets stacked on the second stacker downward and keep the sheets stacked on the second stacker flat, an image decolorizing unit to decolorize the images on the sheets, and a sheet feed unit positioned on an upper surface of the pressing unit to convey the sheets pressed on the pressing unit from the second stacker to the image decolorizing unit.

Abstract: An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.

Abstract: A sheet processing apparatus includes a puncher disposed to make a hole in a sheet to be conveyed, a moving mechanism configured to move the puncher in the orthogonal direction to a conveyance path of the sheet, a sensor to detect a forward edge and a rear edge of the sheet conveyed into the puncher, and a controller configured to control the conveyance of the sheet and an operation of the puncher. The controller decelerates the sheet from a first conveying speed to a second conveying speed after the sensor detects the forward edge of the sheet, and stops the conveying of the sheet after the sensor detects the rear edge of the sheet, and executes a punching to the sheet.

Abstract: An image erasing apparatus includes a stacking tray stacking the recording medium, a heater heating the recording medium to a temperature equal to or higher than the temperature at which developer on the recording medium is erased, a detector disposed downstream in a recording medium carrying direction from the heater to detect an image on the recording medium, a recording medium carrying mechanism picking up the recording medium, from the stacking tray sheet by sheet and carrying the picked-up recording medium, a storage box storing the image-erased recording medium by size, a lateral aligning mechanism disposed in the storage box so as to align the recording medium in the lateral direction, and a controller controlling the alignment operation of the lateral aligning mechanism.

Abstract: A color erasing apparatus includes a conveyance member to convey a sheet on which an image is formed of a color erasable coloring material, a color erasing part to erase a color of the coloring material of the image formed on the sheet conveyed by the conveyance member, a control part that counts the processed number of sheets images of which are color-erased by the color erasing part and determines whether the processed number of sheets exceeds a previously set threshold, and a notification interface to output a signal for notifying that, cleaning of the color erasing part is required if the processed number of sheets exceeds the threshold.

Abstract: According to one embodiment, first and second branch paths of a decoloring apparatus are formed downstream in a sheet conveying direction of a reading section in a conveying path. A diverting section is provided at a branch point of the first and second branch paths in the conveying path. A control section determines on the basis of image data whether decoloring processing should be applied to a sheet, diverts, if determining that the decoloring processing should be applied to the sheet, the sheet to the first branch path with the diverting section, and diverts, if determining that the decoloring processing should not be applied to the sheet, the sheet to the second branch path with the diverting section. A decoloring section is provided between the reading section and the branch point in the conveying path and heats the sheet to decolor an image formed with a decolorable color material.

Abstract: According to one embodiment, a erasing apparatus includes: a paper feeding section configured to feed a recording medium on which a erasable image is recorded to a conveying path; a conveying section configured to convey the recording medium along the conveying path; a erasing section configured to erase a color of the image on the recording medium; a sensor configured to detect the recording medium conveyed through the erasing section by the conveying section; and a control section configured to perform, if the sensor detects occurrence of a jam of the recording medium, control to convey the recording medium present in the conveying path.

Abstract: A sheet processing apparatus includes a conveying motor for conveying a sheet along a conveying path, a skew detecting unit configured to detect a quantity of skew of the conveyed sheet, a hole punching section arranged downstream from the skew detecting unit, an attitude control unit configured to carry out skew correction by changing tilt angle of the hole punching section in accordance with the quantity of skew, a detecting unit configured to detect the forward edge and the rear edge of the sheet conveyed into the hole punching section, and a control unit configured to control the conveying motor to control the conveying speed of the sheet. During a period from when the detecting unit detects the forward edge of the sheet until the detecting unit detects the rear edge, the sheet is decelerated from a first conveying speed to a second conveying speed.

Abstract: A stapler is provided in a housing of a finisher. The stapler has a sheet insertion opening extending in a direction along conveyed sheets. The stapler staples the sheets inserted into the sheet insertion opening in the housing. The finisher includes a rotating mechanism that rotates, when the stapler is moved in a direction orthogonal to a conveying direction of the sheets and removed to the outside of the housing, the stapler such that the sheet insertion opening of the stapler faces a further upper side than the direction along the sheets.

Abstract: A communication unit transmits image data of a preceding sheet scanned to a management device communicating with a decoloring device and receives from a management device determination data which is produced by the management device based on the image data and indicates at least whether or not the preceding sheet is reusable and receives ability data of the management device or reception time indication data. A control unit conveys the preceding sheet to a predetermined conveyance destination based on the determination data and feeds sheets at a timing at which the leading end of a following sheet does not run into the tail end of the preceding sheet even if the preceding sheet is held until the determination data is received based on the ability data or the reception time indication data.

Abstract: A decoloring apparatus includes a conveyance path, a paper feeding part, a reading part, a communication part, a decoloring part and a control part. The conveyance path conveys a sheet to respective parts in the apparatus. The paper feeding part feeds a sheet on which an image is formed by a decolorable colorant to the conveyance path from a sheet stack part. The reading part is provided downstream of the paper feeding part in the conveyance path and reads the image of the sheet. The communication part transmits read image data of a preceding sheet to a management apparatus communicably connected to the decoloring apparatus and receives a determination result of a conveyance destination of the preceding sheet obtained by the management apparatus based on the image data. The decoloring part is provided downstream of the reading part in the conveyance path and erases the image of the sheet.

Abstract: There is provided a decoloring apparatus including: an image reading unit; a decoloring processing unit; a transmission unit which transmits image data read by the image reading unit to a predetermined management apparatus; a receiving unit which receives a result of determination processing performed on the side of the management apparatus for the sheet from which the image data was read, based on the image data transmitted by the transmission unit; and a transport control unit which controls sheet transport time intervals for secondly or later transported sheets based on a time period from transmission of the image data of a firstly transported sheet by the transmission unit until receiving of the determination result for the firstly transported sheet by the receiving unit if the image reading unit is caused to sequentially read images on three or more sheets.

Abstract: A sheet conveyance control method in an apparatus including a first conveying path for leading a sheet from a feeing port to a discharge port, a second sheet conveying path for leading the sheet to another conveyance destination, and a decoloring processing section configured to decolor an image formed on the sheet includes: detecting the length of the sheet further on a downstream side than the feeding port and further on an upstream side than a branching point of the first and second sheet conveying paths in a sheet conveying direction of the first sheet conveying path; and changing, if the trailing end of the sheet is not detected in a period after the leading end of the sheet is detected and before the leading end of the sheet reaches the branching point, a first flapper to a state in which the sheet is conveyed to the discharge port.

Abstract: When the presence or absence of a malfunction is respectively determined in a decoloring section or a separation device, and it is determined that either the decoloring section or the separation device is malfunctioning, only the other is executable.

Abstract: A stapler is provided in a housing of a finisher. The stapler has a sheet insertion opening extending in a direction along conveyed sheets. The stapler staples the sheets inserted into the sheet insertion opening in the housing. The finisher includes a rotating mechanism that rotates, when the stapler is moved in a direction orthogonal to a conveying direction of the sheets and removed to the outside of the housing, the stapler such that the sheet insertion opening of the stapler faces a further upper side than the direction along the sheets.

Abstract: A conveying unit has a nipping hook to nip a sheet bundle and conveys the sheet bundle while nipping the sheet bundle with the nipping hook. A discharge roller sequentially discharges the sheet bundle conveyed by the conveying unit. A stack unit stacks the sheet bundle conveyed by the conveying unit. A shutter is provided between the discharge roller and the stack unit. A push-out lever is fixed to the discharge roller. An opening is provided on one side of the shutter, and a push-out part which causes the push-out lever to protrude to the stack unit from the opening of the shutter with a rotation of the nipping pawl is provided on the nipping hook. The push-out lever caused to protrude to the stack unit by the push-out part pushes out the sheet bundle to the stack unit in accordance with the rotation of the nipping hook.

Abstract: An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.

Abstract: According to one embodiment, an decoloring apparatus includes: an decoloring processing unit configured to apply decoloring processing decoloring a color of an decolorable colorant; a sheet conveying unit configured to convey a sheet and cause the sheet to pass through the decoloring processing unit; an image reading unit arranged further on an upstream side than the decoloring processing unit in a sheet conveying direction by the sheet conveying unit and configured to read an image formed on the sheet conveyed by the sheet conveying unit; a thickness sensor arranged further on the upstream side than the decoloring processing unit in the sheet conveying direction by the sheet conveying unit and configured to detect thickness of the sheet conveyed by the sheet conveying unit; an decolorability determining unit configured to determine, on the basis of a detection result in at least one of the image reading unit and the thickness sensor, executability of the decoloring processing in the decoloring processing uni

Abstract: According to one embodiment, an decoloring apparatus includes: an decoloring processing unit configured to apply decoloring processing decoloring a color of an decolorable colorant; a sheet conveying unit configured to convey the sheet and cause the sheet to pass through the decoloring processing unit; an image reading unit arranged further on an upstream side than the decoloring processing unit in a sheet conveying direction by the sheet conveying unit and configured to read the image formed on the sheet conveyed by the sheet conveying unit; a thickness sensor arranged further on the upstream side than the decoloring processing unit in the sheet conveying direction by the sheet conveying unit and configured to detect thickness of the sheet conveyed by the sheet conveying unit; an decolorability determining unit configured to determine, on the basis of a detection result in at least one of the image reading unit and the thickness sensor, executability of the decoloring processing in the decoloring processing

Abstract: An image erasing apparatus includes: a supply unit that supplies a recording medium; a recovery unit that recovers the recording medium supplied by the supply unit; a plurality of pairs of carrying rollers that carry the recording medium supplied by the supply unit toward the recovery unit; a detecting unit that acquires information regarding foreign matter made of metal attached to the recording medium; a heating unit that heats the recording medium to a temperature equal to or higher than a color-erasing temperature of a developer; and a carriage control unit that reduces a rotation speed of the plurality of pairs of rollers from a first speed to a second speed when the detecting unit acquires the information regarding the foreign matter made of metal.