Ricoh D131 Service Manual page 1510

FM2 Half Fold
In Fold Method 2 (FM2):
The leading edge of the paper is stopped by Fold Stopper 1.
The paper flexes toward the nip of fold rollers
feeds the folded edge of the paper into the nip of fold rollers
Fold rollers and
Fold Stoppers 2, and 3 are not used.
SM
feed the paper into the exit path.
117
Paper Folding
and which performs the first fold and
and .
D454/D615