Patent ID: 7681882

Claim:
A de-skew mechanism, comprising: a rotary shaft, rotated by a motor; a driving roller, disposed on the rotary shaft and rotating with the rotary shaft; a pinch roller, rotating in an opposite direction to the driving roller to form a nip portion to convey a medium; a correcting member, disposed on the rotary shaft along a conveying direction of the medium, for rotating at a disposed position of the correcting member between a correcting position and a releasing position of the correcting member; a suppressing member, selectively contacting with the correcting member, for exerting a suppressing force on the turning of the correcting member with the driving roller to allow the correcting member to be in the correcting position; and a driving member, disposed on the rotary shaft and connected to the correcting member and the driving roller, for letting the correcting member turn with the driving roller, and for allowing the correcting member to come off the suppressing member with the medium conveying force to unload the suppressing force to move the correcting member to the releasing position from the correcting position; wherein the correcting member has a bearing portion, the bearing portion and the suppressing member selectively connect to each other to load the suppressing force; the correcting member further has a correcting portion for correcting skew of the medium, and the bearing portion and the correcting portion are positioned on two sides of the correcting member, respectively.