A sheet manufacturing apparatus includes a drum unit having a plurality of openings, a housing unit covering the drum unit, a transport unit on which a material containing fibers passing through the openings is accumulated as a web and which transports the accumulated web, a first roller that abuts the web transported by the transport unit, and a first seal unit that is provided on a first side wall of the housing unit and comes into contact with the first roller.

To provide a paper recycling device capable of recycling paper of increased whiteness level that can be widely used for applications other than paper for newspapers, the paper recycling device of the present invention has a dry type defibrator 30 for crushing and defibrating paper, a first transport pipe 40 for transporting defibrated material that was defibrated by the dry type defibrator 30, a cyclone 50 for air classifying and deinking the defibrated material transported by the first transport pipe 40, a second transport pipe 60 for transporting the defibrated material that was deinked by the cyclone 50, and a paper forming machine 100 for forming paper with the defibrated material transported by the second transport pipe 60.