US Patent 7405840 Image scanning and printing device

An image scanning and printing device includes a printing unit that prints an image onto each of multiple sheets of recording papers in one printing process by a multi-up printing process and a control unit that controls to select and execute the multi-up printing process when a size of the recording paper, which is obtained based on a size of an original document and an output magnification, is less than half of a maximum recording paper size, and a number of sheets to be printed, which is obtained based on a number of original documents and a number of sets of sheets to be printed, is two sheets or more, and to select and execute a one-up printing process otherwise.