Stencil printing machine

A stencil printing machine, comprising:

• a drum which is freely rotatable and has an outer peripheral wall formed of an ink impermeable member, in which a stencil sheet is mounted on a surface of the outer peripheral wall;
• an ink supply device which has an ink supply portion provided on the outer peripheral wall of the drum and has an ink tank storing an ink, and supplies the ink from the ink supply portion to the surface of the outer peripheral wall, the ink being guided from the ink tank;
• an ink recovery device which has an ink recovery portion on the outer peripheral wall of the drum, and recovers, from the ink recovery portion, an extra ink on the surface of the outer peripheral wall;
• and
• a pressure roller which presses a print medium fed thereto to the outer peripheral wall,
• wherein the ink tank includes a main tank portion where unused ink is stored, and a sub-tank portion where the ink recovered by the ink recovery device is stored, and the ink supply device preferentially supplies the ink in the sub-tank portion.