Copying machine

Claim 1

A copying machine comprising: means defining an exposure area; a document support table reciprocally movably supported relative to said means defining an exposure area, whereby a document may be placed thereon; a document presser plate disposed on said document support table by means permitting opening and closing of said presser plate with respect to said document support table, whereby a document may be held on said document support table by said presser plate; an automatic document feeder disposed on said document support table and positioned out of an area in which said document presser plate is openable and closable with respect to said document support table, said automatic document feeder having a document delivery system, a document feeding system, and a document discharging system; a drive source; a first power transmission means for transmitting driving power from said drive source to said document support table for reciprocally moving the document support table with respect to said exposure area; a second power transmission means for transmitting driving power from said drive source to said automatic document feeder for actuating said document delivery and discharging systems and for actuating said document feeding system to feed a document at a speed equal to that of the reciprocal movement of said document support table, whereby a document may pass through said exposure area; and means for selectively drivingly communicating said drive source with one said first power transmission means in a first mode of using said document presser plate and said second power transmission means in a second mode of using said automatic document feeder, whereby said document presser plate is fixed in said second mode, wherein said means defining an exposure area includes a copying machine mechanism, said drive source including a driver gear disposed in said copying machine mechanism and rotatable selectively in opposite directions.