No tickets in machine, machine set to wrong score state or problem with ticket dispenser.
1) Check to make sure that the unit has tickets on the appropriate side with the problem.
2) Check that the tickets are loaded correctly into the ticket dispenser.
3) Check to make sure that unit is on the correct Score State. Enter menu mode and scroll to F04. The value should be the correct one for the film frames operator has installed.
4) Make sure that the sensor on the ticket dispenser is clean of foreign debris. Use a can of compressed air to clean sensor.
5) Make sure that the ticket dispenser is plugged in.
6) Run a system test on the appropriate ticket dispenser in the "TEST" mode.
7) Replace ticket dispenser