first will be described in detail as the recovery mode starting means 601 is depressed by a user the recovery mode begins first it is started to drive the intermediary transfer belt 8 in the direction indicated by an arrow mark a as the intermediary transfer belt 8 is circularly driven the intermediary transfer belt 8 rubs against the blade 131 rubber blade of the cleaning apparatus 13 which is formed of urethane rubber as a result the adherent residues on the intermediary transfer belt 8 are removed by the blade 131 it is desired that the intermediary transfer belt 8 is circularly driven no less than one full turn which requires 2 4 seconds the longer the length of time the intermediary transfer belt 8 rubs against the urethane rubber blade 131 the more ensured it is that the adherent residues on the intermediary transfer belt 8 are satisfactorily removed in this embodiment the intermediary transfer belt 8 is circularly driven 75 times 180 seconds incidentally while the recovery mode is carried out the intermediary transfer belt 8 is continuously circularly moved further the presence of the toner between the urethane rubber blade 131 and intermediary transfer belt 8 while the intermediary transfer belt 8 is rubbing against the urethane rubber blade 131 improves the urethane rubber blade 131 in terms of its performance in the removal of the residues on the intermediary transfer belt 8 because the toner acts as an abradant referring to fig1 a.