A transfer device has a cleaning arrangement for preventing any leakage of the toner and the liquid carrier remaining on a transfer belt. The transfer device includes a transfer belt onto which liquid developer images are transferred, the transfer belt being wound around a roller having an axial length of L1, a transfer belt cleaning blade to be brought into contact with the roller by way of the transfer belt, the transfer belt cleaning blade having a length L2 in the axial direction of the roller, and cleaning blade seal members arranged at the opposite lateral ends of the transfer belt cleaning blade in the axial direction of the roller and having a length of L3. The lengths of these members have the relationships of L1>L2 and L1