Bifolding
The bifold knife is connected to the motor (bifold knife) by the primary and secondary drive gears. The knife pushes
the middle of the paper between the bifold rollers. The motor (bifold roller) drives the rollers to feed and fold the paper
between the rollers.
The sensor (bifold knife home) detects the home position of the knife. The motor (bifold knife) stops after the sensor
detects that the knife has returned to the home position.
Trifold section parts
# Part
1 Trifold knife
2 Motor (bifold guide)
3 Sensor (bifold guide home)
4 Motor (trifold guide)
5 Sensor (trifold guide home)
4021, 7421
Appendix C: Theory of operation
674