Checking the tension arm

Do this procedure when:

Because this procedure may require you to have visible access to the tractor area, we recommend that you use the operator panel of the affected printer to complete the steps.


  1. Open the center and top covers of the printer.
  2. If you are using the stacker, ensure that the Forms Set indicator on the printer control panel is set to match the fold direction of the fold perforation that is closest to the red line on the transfer station lower tractors. If it is not, press the correct Forms Set key.
    stacker length setting on Infoprint 4100
  3. Locate the guide notch on the transfer station frame.
    guide notch on transter station frame
  4. For the printer to operate, the line on the tension arm must be visible through the guide notch. If it is not visible, do the following to move the tension arm to the correct position:
    It is necessary to hold the tension arm down while you press the stacker table UP switch or the Puller Run button.
    It is necessary to hold the tension arm down while you press the Puller Run button.
    alignment mark and guide notch on tension arm
    1. Press the Puller Run button on the left side of the input area. This causes the puller rolls to run for five seconds.
    2. Gently push the tension arm to the correct position.
      position the tension arm
    3. When the line is visible in the guide notch, turn on the forms path vacuum by pressing the forms path vacuum push button. The Vacuum-Off warning indicator flashes and then stays off.
    4. If the intervention panel is still displayed, press Check Reset on the operator panel or the touch panel. If the message continues, contact your service representative.
  5. Close the center and top covers of the printer.
  6. Select Start on the printer operator panel or on the Main touch panel for the affected printer.
  7. If the tension arm is in the correct position, but the 079A CHECK TENSION ARM message is still displayed, contact your service representative. See Service call procedure for instructions.