Patent ID: RE42290

Claim:
A document copying apparatus comprising: a first scan unit configured to sequentially transport documents mounted in a document tray to a scan position and scan the documents at the scan position, thereby generating image data corresponding to the documents; a second scan unit configured to scan a document placed on a document glass plane without transporting the document, thereby generating image data corresponding to the document; a unit configured to set copy conditions to default conditions; a unit configured to accept a change instruction or a start instruction specified by a user; a unit configured to change the copy conditions according to the change instruction; a unit configured to display the copy conditions; a first select unit configured to select the first scan unit or the second scan unit according to a predetermined rule when the start instruction is accepted; a unit configured to cause the scan unit selected by the first select unit to perform a scanning operation under the copy conditions when the start instruction is accepted; an accept unit configured to accept the change instruction, a continue instruction or a print instruction after: (i) the first scan unit scans all documents mounted in the document tray, or (ii) the second scan unit scans the document placed on the document glass plane; a second select unit configured to select the first scan unit or the second scan unit according to the predetermined rule when the continue instruction is accepted; a unit configured to cause the scan unit selected by the second select unit to perform a scanning operation under the copy conditions when the continue instruction is accepted; a storage unit; a storage control unit configured to store in the storage unit newly generated image data corresponding to an additional document, as additional image data subsequent to previously stored image data, wherein the first scan unit or the second scan unit provides the newly generated image data until the accept unit accepts the print instruction; a print unit; and a unit configured to control the print unit to print image data when the print instruction is accepted, wherein the image data is image data stored in the storage unit during a period starting from when the start instruction is accepted and ending when the print instruction is accepted.