A separator as part of a sheet manufacturing apparatus has a mesh drum configured as a cylinder that can rotate and has mesh in at least part of the side; and a case that houses the mesh drum. The case has a supply port and a recovery port that communicate with an inside area, which is the inside of the mesh drum; a discharge port that communicates with a discharge area, which is outside the side of the mesh drum; and an inside wall segregating at least part of the inside area, forming a material recovery area. First screened material is supplied from the supply port to the inside area. In the material recovery area, the separator recovers accreted material, which is first screened material that was supplied through the supply port and accreted on the inside surface of the mesh drum, from the recovery port.

A separator as part of a sheet manufacturing apparatus has a mesh drum configured as a cylinder that can rotate and has mesh in at least part of the side; and a case that houses the mesh drum. The case has a supply port and a recovery port that communicate with an inside area, which is the inside of the mesh drum; a discharge port that communicates with a discharge area, which is outside the side of the mesh drum; and an inside wall segregating at least part of the inside area, forming a material recovery area. First screened material is supplied from the supply port to the inside area. In the material recovery area, the separator recovers accreted material, which is first screened material that was supplied through the supply port and accreted on the inside surface of the mesh drum, from the recovery port.

A sheet manufacturing apparatus suppresses material being left in a material supply conduit while manufacturing sheets with uniform grammage. A sheet manufacturing apparatus includes: a rotatable, foraminous drum unit; a web forming unit configured to form a web using material including fiber that has passed through the holes in the drum unit; and a material supply conduit having a connector that connects to the drum unit, and carrying material including fiber into the drum unit by air flow; the velocity of the flow in the connector being lower than the velocity of the flow on the upstream side of the connector.

A sheet manufacturing apparatus suppresses material being left in a material supply conduit while manufacturing sheets with uniform grammage. A sheet manufacturing apparatus includes: a rotatable, foraminous drum unit; a web forming unit configured to form a web using material including fiber that has passed through the holes in the drum unit; and a material supply conduit having a connector that connects to the drum unit, and carrying material including fiber into the drum unit by air flow; the velocity of the flow in the connector being lower than the velocity of the flow on the upstream side of the connector.

A separator has a mesh drum configured as a cylinder that can rotate and has mesh in at least part of the side; and a case that houses the mesh drum. The case has a supply port and a recovery port that communicate with an inside area, which is the inside of the mesh drum; a discharge port that communicates with a discharge area, which is outside the side of the mesh drum; and an inside wall segregating at least part of the inside area, forming a material recovery area. First screened material is supplied from the supply port to the inside area. In the material recovery area, the separator recovers accreted material, which is first screened material that was supplied through the supply port and accreted on the inside surface of the mesh drum, from the recovery port.

A separator has a mesh drum configured as a cylinder that can rotate and has mesh in at least part of the side; and a case that houses the mesh drum. The case has a supply port and a recovery port that communicate with an inside area, which is the inside of the mesh drum; a discharge port that communicates with a discharge area, which is outside the side of the mesh drum; and an inside wall segregating at least part of the inside area, forming a material recovery area. First screened material is supplied from the supply port to the inside area. In the material recovery area, the separator recovers accreted material, which is first screened material that was supplied through the supply port and accreted on the inside surface of the mesh drum, from the recovery port.

A sheet fabrication apparatus includes: a fiber separation unit that micronizes an ingredient; a first sensor unit that measures a temperature in a first space including the fiber separation unit; a first air conditioning unit that adjusts the temperature in the first space; a fabrication unit that works the fiber separated articles obtained by micronizing the ingredient by the fiber separation unit; a second sensor unit that measures at least either a temperature or a humidity at a mounting position of the fabrication unit; and a control unit that controls the first air conditioning unit on the basis of at least any of measurement results of the first sensor unit and the second sensor unit.

A sheet fabrication apparatus includes: a fiber separation unit that micronizes an ingredient; a first sensor unit that measures a temperature in a first space including the fiber separation unit; a first air conditioning unit that adjusts the temperature in the first space; a fabrication unit that works the fiber separated articles obtained by micronizing the ingredient by the fiber separation unit; a second sensor unit that measures at least either a temperature or a humidity at a mounting position of the fabrication unit; and a control unit that controls the first air conditioning unit on the basis of at least any of measurement results of the first sensor unit and the second sensor unit.

A sheet manufacturing apparatus suppresses material being left in a material supply conduit while manufacturing sheets with uniform grammage. A sheet manufacturing apparatus includes: a rotatable, foraminous drum unit; a web forming unit configured to form a web using material including fiber that has passed through the holes in the drum unit; and a material supply conduit having a connector that connects to the drum unit, and carrying material including fiber into the drum unit by air flow; the velocity of the flow in the connector being lower than the velocity of the flow on the upstream side of the connector.

A sheet manufacturing apparatus suppresses material being left in a material supply conduit while manufacturing sheets with uniform grammage. A sheet manufacturing apparatus includes: a rotatable, foraminous drum unit; a web forming unit configured to form a web using material including fiber that has passed through the holes in the drum unit; and a material supply conduit having a connector that connects to the drum unit, and carrying material including fiber into the drum unit by air flow; the velocity of the flow in the connector being lower than the velocity of the flow on the upstream side of the connector.