US Patent 7911490 Printer

A printer comprises a transfer assembly 56 for transferring a print image formed on an intermediate transfer sheet 42 to a print surface of a print medium 100, a print tray 12 on which the print medium 100 is placed, and a retaining roller 70 installed slightly downstream of the transfer assembly 56. The retaining roller 70 which is biased downward pushes the print medium 100 from above, to thereby prevent the print medium 100 from being lifted up.