SHEET MANUFACTURING APPARATUS AND CONTROL METHOD OF SHEET MANUFACTURING APPARATUS

A sheet manufacturing apparatus is an apparatus that heats a material containing fibers to form a sheet， and includes a heating portion that heats the material， and a control portion that controls a temperature at which the heating portion heats the material. The control portion sets a temperature of the heating portion to a first temperature in a first state where the sheet manufacturing apparatus manufactures the sheet， and sets the temperature of the heating portion to a second temperature lower than the first temperature at a predetermined timing in a second state where the sheet is not manufactured， or at a predetermined timing when a state of the sheet manufacturing apparatus is shifted to the state where the sheet is not manufactured.