A belt cleaning device (70, 110, 210, 310) configured to wash a placement face of a conveyance belt endless, the conveyance belt being configured to convey a recording medium placed on the placement face due to circumferential movement of the conveyance belt, the belt cleaning device (70, 110, 210, 310) comprising: a plurality of washers (52, 58, 62, 68) configured to wash the placement face of the conveyance belt while supplying washing liquid to the placement face of the conveyance belt; a plurality of collectors (51, 61) provided so as to collect the washing liquid supplied to the placement face of the conveyance belt by a respective washer (52, 58, 62, 68) of the plurality of washers (52, 58, 62, 68); a plurality of removal members (53, 63a) provided for the plurality of collectors (51, 61), the plurality of removal members (53, 63a) each being disposed downstream of the corresponding washer (52, 58, 62, 68) in a circumferential direction of the conveyance belt, the plurality of removal members (53, 63a) each being configured to remove a residue remaining on the placement face of the conveyance belt; a reservoir (202, 212) provided for each of the plurality of collectors (51, 61), the reservoir (202, 212) being configured to store the washing liquid collected by the corresponding collector (51, 61); and an overflow pipe (203, 213, 301) provided to the reservoir (202, 212), the overflow pipe (203, 213, 301) being configured to maintain the washing liquid stored in the reservoir (202, 212) at a predetermined liquid level, characterized in that the overflow pipe (203, 213, 301) in the reservoir (202, 212) of a washer (52, 58, 62, 68) and respective collector (51, 61) further downstream of the conveyance belt feeds washing liquid into the reservoir (202, 212) of a washer (52, 58, 62, 68) and respective collector (51, 61) further upstream of the conveyance belt. a plurality of washers (52, 58, 62, 68) configured to wash the placement face of the conveyance belt while supplying washing liquid to the placement face of the conveyance belt; a plurality of collectors (51, 61) provided so as to collect the washing liquid supplied to the placement face of the conveyance belt by a respective washer (52, 58, 62, 68) of the plurality of washers (52, 58, 62, 68); a plurality of removal members (53, 63a) provided for the plurality of collectors (51, 61), the plurality of removal members (53, 63a) each being disposed downstream of the corresponding washer (52, 58, 62, 68) in a circumferential direction of the conveyance belt, the plurality of removal members (53, 63a) each being configured to remove a residue remaining on the placement face of the conveyance belt; a reservoir (202, 212) provided for each of the plurality of collectors (51, 61), the reservoir (202, 212) being configured to store the washing liquid collected by the corresponding collector (51, 61); and an overflow pipe (203, 213, 301) provided to the reservoir (202, 212), the overflow pipe (203, 213, 301) being configured to maintain the washing liquid stored in the reservoir (202, 212) at a predetermined liquid level, characterized in that the overflow pipe (203, 213, 301) in the reservoir (202, 212) of a washer (52, 58, 62, 68) and respective collector (51, 61) further downstream of the conveyance belt feeds washing liquid into the reservoir (202, 212) of a washer (52, 58, 62, 68) and respective collector (51, 61) further upstream of the conveyance belt.