you really don't know anything about publishing papers do you?
there is ALWAYS a submission fee...
For instance...PNAS, where I have published
Publication Charges
Page charges
PNAS depends, in part, on the payment of page charges for its operation. Payment of the page charge of $70 per printed page will be assessed from all authors who have funds available for that purpose. Authors will be charged for extensive alterations on proofs. Payment of $250 per article will be assessed for Supporting Information. Authors of research articles may pay a surcharge of $1,100 to make their paper freely available through the PNAS open access option. If your institution has a Site License, the open access surcharge is $800. All articles are free online after 6 months. Articles are accepted or rejected for publication and published solely on the basis of merit.
