Image reading system having automatic document feeding device

An image reading system comprising:

• image reading means for reading an image on a given document passing through a document reading position;
• means for conveying the document through said document reading position;
• and
• a document feeding device, said document feeding device including:
• a document stacker for stacking one or more documents to be read;
• a kick roller for sending out the document from said document stacker;
• a separation means for permitting only one document sent out from said stacker by said kick roller to pass therethrough;
• and
• a document restraining member movable between a lower check position, at which the document stacked in said document stacker is prevented from entering said separation means, and an upper retreat position;
• wherein said document restraining member includes:
• an actuating lever movable with the document being set on said document stacker;
• and
• handling means for moving said document restraining member between said lower check position, at which the document stacked in said document stacker is prevented from entering said separation means, and said upper retreat position.

An image reading system comprising:

• image reading means for reading an image on a given document passing through a document reading position;
• means for conveying the document through said document reading position;
• and
• a document feeding device, said document feeding device including:
• a document stacker for stacking one or more documents to be read;
• a kick roller for sending out the document from said document stacker;
• a separation means for pennitting only one document sent out from said stacker by said kick roller to pass therethrough;
• and
• a document restraining member movable between a lower check position, at which the document stacked in said document stacker is prevented from entering said separation means, and an upper retreat position;
• wherein said document restraining member includes:
• an actuating lever movable with the document being set on said document stacker;
• handling means for moving said document restraining member between said lower check position, at which the document stacked in said document stacker is prevented from entering said separation means, and said upper retreat position;
• and
• document detecting means for detecting the documents set on said document stacker by using said actuating lever.

An image reading system comprising:

• an image reading device including a casing having a base frame with a document setting face, a driving part, and an upper frame opposed to the base frame astride a document passage;
• image reading means disposed adjacent to said document setting face and serving for reading an image on a given document passing through a document reading position;
• document conveying means including one or more conveying rollers for conveying the document through a document reading position;
• a driving mechanism for said document conveying means;
• and document detecting means for detecting the documents set on said document setting face;
• and
• a document feeding device capable of being detachably attached to said image reading device, said document feeding device including a document stacker for stacking one or more documents to be read, a kick roller for sending out the document from said document stacker, a separation means for permitting one document sent out from said document stacker by said kick roller to pass, and a document restraining member movable between a lower check position at which the document stacked in said document stacker is prevented from entering said separation means and an upper retreat position.