Half Fold

[1] The leading edge of the paper passes the registration roller.

[2] The paper is fed to the folding rollers 1 and 2 by the junction gate [A].

[3] The leading edge of the paper passes the 2nd fold roller (F/R) and is fed to the fold position.

[4] At the fold position, the 2nd fold roller (F/R) rotates in reverse to form an arch in the paper.

[5] The 2nd fold is formed when this arched part is fed through the nips of the folding rollers 2 and 3.