(b) It is acceptable for the bill acceptor to disable or flash a light or lights to indicate the error has occurred, provided the information is communicated to the EGS and the bill acceptor disables:

1. (1) Bill stacker full;
2. (2) Bill jams;

3. (3)

   1. (A) Bill acceptor door open.
   2. (B) Where a bill acceptor door is the belly glass door, a door open signal is sufficient; and
4. (4) Bill stacker door open or bill stacker removed.