Example 2

TLE 
1Line Data page 1 
IMM  
TLE 
1Line Data page 2  

The example generates:

TLE - no page was started, so the TLE is before the BPG  

BPG 
BPT PTX EPT sequence with Line Data page 1 in PTX 
EPG  

IMM 
TLE - when the TLE was encountered, ACIF was between pages because the IMM 
      caused a page boundary and page 1 was ended before ACIF encountered 
      the TLE  

BPG 
BPT PTX EPT sequence with Line Data Page 2 in the PTX 
EPG    

This same scenario occurs when any structured field that causes a page boundary is encountered.