Patent ID: 8087665
Filing Date: 2012-01-03
Classification: B65H,G03G,Y10S

Abstract:
1. A sheet conveying apparatus comprising: a first conveying path through which a sheet is conveyed; a first nip, provided on the first conveying path, which conveys a sheet in a first direction; a reversal roller which, after conveying the sheet in a first direction, conveys the sheet in the second direction in opposite direction to the first direction; a second conveying path which branches off with the first conveying path and through which the sheet reversely conveyed by the reversal roller is conveyed; a second nip, provided on the second conveying path, which carries the sheet conveyed by the reversal roller to the second direction; a movable unit which is disposed between the first nip and the reverse roller, and between the reverse roller and the second nip to allow the sheet, which is conveyed from the first nip to the reversal roller, to pass one side of the movable unit, and to allow the sheet, which is conveyed from the reversal roller to the second nip, to pass the other side of the movable unit; a guide elongated along a conveying direction of the sheet which is conveyed through the first conveying path, which is configured to guide the movable unit along the conveying direction of the sheet; a driving unit that moves the movable unit along the guide; and a controller configured to control the driving unit to move the movable unit toward the reversal roller along the conveying direction of the sheet, after a trailing end of the sheet which is conveyed through the first conveying path passes the movable unit, wherein the movable unit moved toward the reversal roller by the controller is between a previous sheet which is conveyed from the reversal roller to the second nip and subsequent sheet which is simultaneously conveyed from the first nip to the reversal roller so as to prevent the previous sheet from contacting to the subsequent sheet, when the first nip and the second nip simultaneously convey the previous sheet and the subsequent sheet, respectively.