Patent ID: 9284143
Filing Date: 2016-03-15
CPC Classification: B65H,G03G

Claim Text:
1. A sheet transport device comprising: a device main body on which one roller of a first transport roller pair that transports sheets is provided; an opening and closing door that is movably and rotatably supported between a closing position where a part of a sheet transport path formed on a side surface of the device main body is covered and an opening position where a part of the sheet transport path is open, and on which one roller of a second transport roller pair provided on the sheet transport path is provided; and a transport unit that includes an other one of the first transport roller pair and an other one of the second transport roller pair, and is swingably supported by the opening and closing door, wherein, when the opening and closing door moves to the closing position from the opening position, the opening and closing door is positioned at a second positioning portion formed on the device main body after the transport unit is positioned at a first positioning portion formed on the device main body, wherein the first positioning portion is an engaging portion that includes an opening portion and a bottom surface portion, the bottom surface portion being in contact with a base portion of the transport unit, thereby allowing engagement between the transport unit and the engaging portion to ultimately be released with the movement of the opening and closing door.