To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a storage means of an ink container, while the stored information representing the volatility and/or viscosity of ink is read out, and at the same time, the ceasing time from interruption of printing to resumption of the same is measured, and the printing pressure is controlled according to the ceasing time and the information representing the volatility and/or viscosity of ink.