Photocopying copyright material
Whether you copy material yourself or whether you send it to a printery, you are bound by the limitations governing how much you can copy. When you sign the printing request form, you are guaranteeing that the requested material is within the educational use copying limitations, that you own copyright in the material, or that you have gained express permission to use the material.
In summary, you can photocopy:
Books: One chapter or 10% of the number of pages. Note that one chapter (or part thereof) may exceed 10% of the number of pages in the book.
Periodical publications: One article (or more if on the same subject matter).
Details on how much you can copy and what sort of materials are covered is available from the 'How much can I copy?' page.
If your copying doesn't fall within these limitations, it is your responsibility to seek permission from copyright owners.