Patent ID: 8459181

Claim:
A sheet processing apparatus comprising: a first cylinder which receives a sheet from an upstream transport cylinder and holds the sheet and functions as a reference cylinder for adjustment of a printing pressure; a second cylinder which is disposed to oppose said first cylinder and prints/coats the sheet held by said first cylinder; a third cylinder which is disposed to oppose said first cylinder and supplies ink/varnish to a circumferential surface of said first cylinder; first driving means for moving a position of said first cylinder with respect to said upstream transport cylinder to adjust a gap amount between said first cylinder and said upstream transport cylinder; second driving means for moving a position of said second cylinder with respect to said first cylinder to adjust the printing pressure between said first cylinder and said second cylinder; third driving means for moving a position of said third cylinder with respect to said first cylinder to adjust the printing pressure between said first cylinder and said third cylinder; gap amount input means for inputting the gap amount between said first cylinder and said upstream transport cylinder; control means for controlling the driving operation of said first driving means, said second driving means, and said third driving means on the basis of the gap amount input from said gap amount input means; and thickness input means for inputting a thickness of the sheet, wherein said control means controls the second driving means based on said sheet thickness.