Patent ID: 8201820

Claim:
A document feeding mechanism comprising: a driving shaft; a document blocking means; a tray being pushed up by an elastic means to connect to the document blocking means; an actuating means coupled to the driving shaft and abutted against the tray for pushing down the tray to separate from the document blocking mean; wherein the actuating means comprises a pushing portion with a large distance from the driving shaft being selected to abut against the tray for pushing down the tray to separate from the document blocking means; a releasing portion with a small distance from the driving shaft for allowing the tray to be pushed up by the elastic means to connect to the document blocking means; wherein the tray comprises a resisting pillar protruded upwardly to abut against the actuating means; wherein a top portion of the resisting pillar is coupled with a roller to abut against the actuating means; and wherein the resisting pillar comprises a receiving space formed therein for receiving the elastic means.