Ricoh G188 Service Manual page 866

10:
When the fold rollers [1] feed the stack 10 mm past the nip, the fold plate retracts until it no
longer touches the stack. The fold unit exit sensor [2] detects the folded edge of the stack
and stops the fold rollers.
11:
The rotation of the fold rollers [4] reverses and feeds the folded edge back until only 3 mm of
the fold [5] remains at the nip.
12:
The fold rollers [6] rotate forward once again feed out. The fold unit exit sensor [7] once
again detects the edge of the fold.
You can do SP6-136-001 to increase the sharpness of the fold. The number of
forward and reverse feeds can be set in the range of 2 to 30. The machine repeats
Steps 11 and 12. For more, please refer to Section "Service Tables".
B804/B805/D373/D374
Booklet Stapling (B804 Only)
58 SM