The First Three Sheets
  1. The rear edge of the 1st sheet passes the entrance sensor. Then the left and right pre-stack inverter plates shift to the left. This closes the 2nd and 3rd paths to send paper to the 1st path.
  2. The rear edge of the 2nd sheet passes the entrance sensor. Then the pre-stack inverter plate (right) shifts to the right. This opens the 2nd path to send the 2nd sheet to the 2nd path.
  3. The rear edge of the 3rd sheet passes the entrance sensor. Then, the pre-stack inverter plate (left) shifts to the right. This opens the 3rd path to send 3rd sheet to the 3rd path. Then, after the leading edge of the 3rd sheet passes the pre-stack sensor, the three sheets of paper (1st, 2nd, 3rd) are sent to the stapler tray at the same time.

    1. Junction Gate (JG) Left
    2. JG Right
    3. JG Left
    4. JG Right
    A: 3rd Transport Path
    B: 2nd Transport Path
    C: 1st Transport Path
Pre-stacking for Subsequent Sheets

When the rear edge of the 4th sheet passes the entrance sensor, the pre-stack inverter plate (left) shifts to the left to open the 2nd path. This sends the 4th sheet to the 2nd path.

Then, after the leading edge of the 5th sheet passes the entrance sensor, the pre-stack inverter plate (left) shifts to the right to open the 3rd path. This sends the 5th sheet to the 3rd path. When the leading edge of the 5th sheet passes the pre-stack sensor, both sheets of paper are sent to the staple tray.

From now on until the end of the stack of paper to be stapled, paper is fed to the stapler two by two in this way.

  1. Junction Gate (right)
  2. JG Left
  3. JG Right

A: 3rd Transport Path

B: 2nd Transport Path