You may try the photocopy and printing services of Alva Compter and Photocopy Services at the back of Makati Cinema Square. They are open until 10pm. This is right beside Mercury Drugstore. They charge 75 cents per letter size sheet (as of 2010).
ALVA COMPUTER AND PHOTOCOPY SERVICES
2296 Don Chino Roces Avenue (Pasong Tamo)
1226 Makati Metro Manila