I had a similar problem creating a text file to be used with a PageMaker file. The only way I found to output the memo field without Foxpro putting in those nice returns where it felt like was like this:

set printer to output.txt
set print on
scan
? field1
? field2
? field3
*** here is where memo comes in
set print off
set printer to
copy memo memofield to output.txt additive
set printer to output.txt additive
set print on
endscan