Abstract: A method for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: supporting an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle by a hill, the hill including a slope between a folded edge support and the sheet bundle provider, the hill further including a valley wall declined steeper than the slope from the higher side to the lower side between the slope and the folded edge support; supporting the folded edge of the folded sheet bundle by the folded edge support; and moving the folded edge support without rotation in a direction declined from a higher side near the sheet bundle provider to a lower side farther from the sheet bundle provider than the higher side.

Abstract: A method for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: supporting an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle by a hill, the hill including a slope between a folded edge support and the sheet bundle provider, the hill further including a valley wall declined steeper than the slope from the higher side to the lower side between the slope and the folded edge support; supporting the folded edge of the folded sheet bundle by the folded edge support; and moving the folded edge support without rotation in a direction declined from a higher side near the sheet bundle provider to a lower side farther from the sheet bundle provider than the higher side.

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: a folded edge support configured to support the folded edge of the folded sheet bundle provided from the sheet bundle provider, the folded edge support movable back and forth in a direction declined from a side near the sheet bundle provider, and an undersurface support configured to support an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle.

Abstract: A sheet processing apparatus of an embodiment includes a spring member which supports a support leg provided on an end bottom of a finishing apparatus at a side of an image forming apparatus and is extendable in a height direction, a sheet feed port which is formed in the finishing apparatus to be opposite to a sheet discharge port of the image forming apparatus and has a width wider than a width of the sheet discharge port in the height direction, sheet discharge guides which are arranged to be opposite to each other at an exit of the sheet discharge port and sandwich a conveyance path of the sheet in the image forming apparatus, sheet feed guides which are arranged to be opposite to each other at an inlet of the sheet feed port and sandwich a conveyance path of the sheet in the finishing apparatus, electromagnets provided at ends of the sheet feed guides at a side of the sheet feed port, and magnetic members which are rotatably provided to ends of the sheet discharge guides at a side of the sheet discharge

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: an undersurface support configured to support an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle; a folded edge blocker configured to support the folded edge of the folded sheet bundle supported by the undersurface support, a lower end of the folded edge blocker being held by the undersurface support, and a canceller configured to release the lower end of the folded edge blocker from the undersurface support if a predetermined amount of sheet stacks are loaded on the undersurface support.

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in a lead, including: an undersurface support configured to support an undersurface of the folded sheet bundle provided from the sheet bundle provider; a folded edge blocker configured to take a blocking position to block the folded edge of the folded sheet bundle on the undersurface support and a releasing position to release the folded sheet bundle; and a joint configured to evacuate from an orbit of the folded edge blocker returning from the releasing position to the blocking position, the joint is configured to join the undersurface support with the folded edge blocker at the blocking position after the returning to the blocking position.

Abstract: A sheet folding apparatus includes a fold unit to fold a center of a sheet bundle to form a fold line, a reinforce roller which reciprocates along a direction of the fold line while nipping and pressing the fold line and reinforces the fold line of the sheet bundle, and a control section to changeably set the number of times of reciprocating movement of the reinforce roller according to a thickness of a sheet contained in the sheet bundle.

Abstract: A sheet folding apparatus, including: a sheet folder configured to fold a sheet bundle; a sheet tray configured to support the sheet bundle folded by the sheet folder; a first frame configured to support the sheet folder; a second frame configured to movably support the first frame and the sheet tray; a first sensor unit supported by the second frame, configured to change its condition depending on presence of the sheet bundle on the sheet tray; a second sensor unit supported by the first frame, configured to detect the condition of the first sensor unit; and a controller supported by the first frame, configured to control the sheet folder according to the detection of the second sensor unit.

Abstract: An image forming apparatus including a sheet loader, the sheet loader including: a discharger configured to discharge a first sheet and a second sheet after the first sheet; a tray configured to support the second sheet on the first sheet; a support configured to support the first sheet on the tray; a controller configured to control the support to lower a first angle than a second angle, the first angle being an angle of the first sheet against a direction to which the discharger discharges the second sheet at a position where the second sheet hits on the first sheet, the second angle being an angle of the tray against the direction at a position where the first sheet hits on the tray.

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: an undersurface support configured to support an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle; a folded edge blocker configured to support the folded edge of the folded sheet bundle supported by the undersurface support, a lower end of the folded edge blocker being held by the undersurface support, and a canceller configured to release the lower end of the folded edge blocker from the undersurface support if a predetermined amount of sheet stacks are loaded on the undersurface support.

Abstract: A sheet folding apparatus, including: a sheet folder configured to fold a sheet bundle; a sheet tray configured to support the sheet bundle folded by the sheet folder; a first frame configured to support the sheet folder; a second frame configured to movably support the first frame and the sheet tray; a first sensor unit supported by the second frame, configured to change its condition depending on presence of the sheet bundle on the sheet tray; a second sensor unit supported by the first frame, configured to detect the condition of the first sensor unit; and a controller supported by the first frame, configured to control the sheet folder according to the detection of the second sensor unit.

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in a lead, including: an undersurface support configured to support an undersurface of the folded sheet bundle provided from the sheet bundle provider; a folded edge blocker configured to take a blocking position to block the folded edge of the folded sheet bundle on the undersurface support and a releasing position to release the folded sheet bundle; and a joint configured to evacuate from an orbit of the folded edge blocker returning from the releasing position to the blocking position, the joint is configured to join the undersurface support with the folded edge blocker at the blocking position after the returning to the blocking position.

Abstract: A sheet loader for loading a folded sheet bundle provided from a sheet bundle provider with a folded edge of the folded sheet bundle in the lead, including: a folded edge support configured to support the folded edge of the folded sheet bundle provided from the sheet bundle provider, the folded edge support movable back and forth in a direction declined from a side near the sheet bundle provider, and an undersurface support configured to support an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle.