No. | Name | No. | Name |
|---|---|---|---|
1 | Guide Plate 1 | 3 | Fold Transport Roller |
2 | Guide Plate 2 | 4 | Side-to-Side Fold Roller Unit |
The side-to-side fold roller unit in the center moves from [A] to [C].
It moves along a rail when it comes to the center, the upper fold (up) descends [B], and then pressure from a large spring folds the center of the stack.
With the pressure of the side-to-side fold roller applied, the unit moves forward from [C] to [D]. When the roller moves as far as [D] the upper roller of the roller unit ascends from the lower path to the upper path, releasing the pressure on the center of the stack.
The fold plate motor reverses, and the unit increases pressure on the stack as it moves and applies creasing on the remainder of the saddle shape as it moves from [C] to [A]. When the top of the side-to-side fold unit reaches the side-to-side fold unit HP sensor, the unit ascends to the upper path [B] and releases pressure on the center of the stack.