Sheet manufacturing apparatus and sheet manufacturing method

Abstract

A sheet manufacturing apparatus includes a forming unit configured to form a continuous sheet. The forming unit includes a deposition unit configured to deposit a material containing fiber, a pressurizing unit configured to pressurize a deposited web, and a heating unit configured to heat the web. The forming unit further includes a detection unit. The detection unit may be an optical sensor including a light source configured to emit light from a side of one surface of the continuous sheet (or a single sheet) and a light receiver configured to receive the light on a side of the other surface. The texture may be detected by the optical sensor over the entire surface of the continuous sheet.

What is claimed is: 
     
         1 . A sheet manufacturing apparatus comprising:
 a forming unit configured to form a sheet by depositing, pressurizing, and heating a material containing fiber; and   a detection unit configured to detect a texture of the sheet.   
     
     
         2 . The sheet manufacturing apparatus according to  claim 1 , wherein the detection unit is an optical sensor configured to emit light from a side of one surface of the sheet, receive the light on a side of the other surface of the sheet, and detect the texture of an entire surface of the sheet. 
     
     
         3 . The sheet manufacturing apparatus according to  claim 1 , further comprising:
 a stack unit on which the sheet is stacked when the texture of the sheet is relatively good; and   a path configured to prevent the sheet from going to the stack unit when the texture of the sheet is relatively bad.   
     
     
         4 . The sheet manufacturing apparatus according to  claim 1 , further comprising:
 an application unit configured to apply a marking on the sheet when the texture of the sheet is relatively bad.   
     
     
         5 . A sheet manufacturing method comprising:
 forming a sheet by depositing, pressurizing, and heating a material containing fiber; and   detecting a texture of the sheet.