Automatic document feeder and scanner having the same

An automatic document feeder, comprising:

• a transport unit configured to transport a document to a scanning unit along a document transportation path;
• a cover rotatably disposed on an apparatus main body configured to support therein the transport unit;
• a lever configured to move between a first position and a second position along the document transportation path, the lever being in contact with the document passing through the document transportation path when in the first position, the lever not being in contact with the document passing through document transportation path when in the second position;
• and
• a member configured to prevent the lever from moving from the first position to the second position when the cover is open.

An automatic document feeder useable with a document scanner, the document scanner including a main housing body for supporting therein a transport unit configured to deliver a document to be scanned to a scanning unit along a document transport path, the main housing body having disposed thereon a cover, the automatic document feeder comprising:

• a lever disposed at a sensing location along the document transport path, the lever being movable between a first position and a second position;
• a member movable in association with the cover between a contact position and a non-contact position, the member being in the contact position when the cover is open, the member being in an interfering contact with the lever so as to cause the lever to move to the second position when the member is in the contact position, the member being in the non-contact position when the cover is closed, the member not contacting the lever when the member is in the non-contact position;
• and
• a sensor configured to output a sensing signal indicative of a position of the lever.