2 5 x 400 July 8, 2019 16 32 64 128 2 5 x 4000 2 5 x 40000 2 5 16 x 400 thermal paper 2 5 16 x 400 2 5 8 x 400 1 2 x 5 x 400 Log 2 √ 5 400 x 6 9 x 2 5 x 400 2 x 2 5 2x 5
