To provide an apparatus for removing foreign matter on a printed circuit board for effectively removing foreign matters such as dust or the like adhered to the printed circuit board.

An aperture 14a is formed at the bottom part of a shroud 14 at the lower part of a case Ac and a roll brush 12 within the case is exposed to the lower side from the aperture 14a. A separating wall 25 is provided to be freely movable in the direction of a rotating axis X within the case Ac and an exhausting cylinder 13 is provided to be freely movable in the direction of the rotating axis X at the upper part of the case Ac. A position adjusting device D is provided to set the exhausting cylinder 13 to the central position in the width direction of the printed circuit board P based on the location of end part of the printed circuit board P. Moreover, a cooperation work mechanism E is also provided to set the separating wall 25 at the location of end part of the printed circuit board P.

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