Until now very heavy pressure needed to be applied in order to shape the saddle, and this could not be done unless the finisher was very large. This finisher, however, in spite of being very small, uses the device described below to achieve a better saddle shape.
- Pressure is applied to the fold with a roller to form the saddle.
- Pressure is applied while the paper is buckled at the top and bottom with two rollers to form the saddle. The rollers move front and back to strengthen the crease with two, not just one fold.