Fiber processing device and fibrous feedstock recycling device

A sheet manufacturing apparatus comprising:

• a defibrator configured to defibrate feedstock containing fiber;
• a separator configured to classify defibrated material output from the defibrator;
• and
• a processor configured to process separated material classified by the separator;
• the separator having a mesh member disposed within the separator, the mesh member configured as a rotatable cylinder with mesh in at least part of the circumferential surface, and
• a case housing the mesh member,
• the case having a first opening and a second opening communicating with a first area inside of the mesh member, a third opening communicating with a second area, which is outside the mesh member,
• a wall segregating at least a part of the first area and forming a third area,
• the second opening communicating with the third area,
• separator feedstock containing fiber supplied from the first opening to the first area, and
• accreted material, which is a part of the separator feedstock supplied from the first opening that has accreted on the circumferential surface of the mesh member, being recovered from the second opening in the third area.