payment on production
Payment on production means the buyer will pay an artistic work creator once copyright work has been physically printed for publication. Typically, the payment is tied to reproduction rights licensing from the work’s creator.
Occasionally, the buyer may chose not to reproduce the work. In such cases, the work's creator is either not paid or paid a lesser "kill fee" in lieu of full payment.
Also called payment on publication.
Also see payment on acceptance.
See additional information at Understand billing schedules and the blog PhotoJournalism.