The Microforms Area in O'Neill Library is located on level 1, two flights down from the main entrance level. It is open whenever O'Neill Library is open. It is self-service, but someone at the Reference Desk on level 3 (entrance level) should be able to assist you. You can scan pages to be e-mailed or downloaded to your own flash drive free of charge, using the microform readers/scanners there.
There are two additional microform readers on the the third floor (main level) near the elevators.