Reprography is the reproduction of something already printed. It traditionally referred to photocopying, but also now includes digital reproductions of published works.
Reprographic rights are the photocopy and digital reproduction rights of your published work. Reprographic rights are separate from the first print or electronic reproduction rights.
Reprographic rights are held individually by artists, but managed collectively by a collecting society.
A collecting society can only administer the rights of its members, i.e., those artists who have given the society a mandate to act on their behalf.