Sheet manufacturing apparatus

A sheet manufacturing apparatus that forms a sheet using a web, the apparatus comprising:

• an accumulation unit configured to accumulate the web containing at least a fiber on a first transport belt;
• a first transport unit configured to cause the first transport belt to circle around so as to transport the web;
• a second transport belt that is spaced from the first transport unit in a perpendicular direction perpendicular to a surface of the web, and is disposed with a part thereof shifted from the first transport unit toward a downstream side in a transport direction of the web;
• a suction unit positioned on an outer side of the second transport belt in a direction orthogonal to the transport direction of the web;
• a suction chamber positioned in an inner side of the second transport belt which circles around the suction chamber, the suction unit being configured to create suction inside the suction chamber to suck the web onto the second transport belt;
• and
• a current plate positioned inside of the suction chamber to adjust an air current, the current plate having a plurality of holes,
• the current plate being spaced apart from a surface of the second transport belt such that the air current is diffused between the current plate and the surface of the second transport belt, and the holes on a side closer to the suction unit having a smaller ratio of opening of the holes per unit area on the surface than that of the holes on a side farther from the suction unit, to achieve a uniform suction force in a width direction of the second transport belt.