To provide a printing machine which is improved in the accuracy of transfer of a sheet from a reversing transfer cylinder to a reversing cylinder.

When the reversing transfer cylinder 15 transfers the sheet to the reversing cylinder 17, a first arm 21 is rotated clockwise against the energizing force of a spring by the actions of a cam follower 21d and a cam, thereby, a second arm 27 is rotated clockwise, a third arm 29 is rotated counterclockwise, and a capturing member C is made into a state where it is rotated in a direction opposite to the rotation direction of the reversing transfer cylinder 15, that is, clockwise, as shown in Figs.2, 4 and 6 (Figs.2 and 6 are not shown). Therefore, a rear end placing surface C2 having a suction hole C3 is located on the same circumferential surface as the outer circumferential surface 15b of the reversing transfer cylinder 15. By adopting such a configuration, the rear end of the sheet can be accurately and surely transferred to the reversing cylinder 17.