An image forming machine (1) that can select a most appropriate recording sheet. The image forming machine (1) may be a facsimile machine having a photocopy function. The facsimile machine has a 100% magnification preferred mode and a one-page-printing preferred mode. In the latter mode, an image may be reduced for printing, or two images may be combined and printed on a single sheet of paper. ROM (30) stores a plurality of print types in a predetermined order for each of these modes (PT1, PT2). The facsimile machine (1) has a plurality of paper cassettes (51, 52, 53) to store recording sheets. A controller (10) selects one of the paper cassettes which best suits for the printing under a predetermined criterion, and causes a printer (50) to print the image on one or more recording sheets supplied from the selected paper cassette.