Im not sure about NJ, but here in Indiana we do not have to pay tax on those items. We are under a FSMA and everything from Xerox comes tax free. We did have to provide the proper paperwork to them, and it took about 3 months for them to get it right, but in the end they stopped adding tax to our bill and gave us a back credit for what they charged. Just ask your accountant for the proper paperwork you need to submit to whatever company your using.