An electrophotographic printer includes a transfer roller cleaning device 12 and a carrier liquid supply unit 11 disposed at a portion of the circumference of a transfer roller 2 between a position of image transfer onto a recording medium 7 and the transfer roller cleaning device and including a carrier liquid supply roll 13 in rotational contact with a surface of the transfer roller. The transfer roller cleaning device comprises a cleaning roll 17 rotating in rubbing contact with the surface of the transfer roller and having a bias voltage applied thereto which is of a polarity opposite to that of a residual toner; a peripheral surface scraping blade 18 positioned downstream of the cleaning roll in the rotation direction of the transfer roller; a side surface scraping blade 19 likewise positioned downward; and a surface scraping blade 26 disposed at a portion of the circumference of the cleaning roll.