| 摘要 |
An apparatus for cleaning a surface (13) is disclosed which comprises : an elongated housing (1) having at an end thereof an edge (2) which surrounds an opening (3) ; a jet or spray nozzle (4), which is disposed in the housing and spaced from the opening (3), for jetting or spraying a cleaning liquid on the surface (13) through a portion (5) of the opening (3), said portion (5) having a perimeter (6); a supply channel (10) connected to the nozzle (4) for supplying the cleaning liquid; rubbing means (8) for mechanically treating the surface (13), which are rotatably mounted and which extend from within the housing (1) towards the opening (3) and are disposed along said perimeter (6); said rubbing means (8) and said housing (1) defining a suction chamber (9) ; an evacuation channel (11) connected to the suction chamber (9) for maintaining a sub-pressure in the suction chamber (9) in order to remove the cleaning liquid drawn from between the rubbing means (8) and any material released from the surface (13). The apparatus is especially suited for removing ink-accepting areas from a lithographic printing master so as to recycle the lithographic substrate. <IMAGE> <IMAGE>
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