I too bought a cash register 480nt without a manual at a garage sale and cannot work it. If I figure it out, or if I find the manual, I will let you know. Bye for now, -Remy
PS if you lose my e-mail address, try my website called http://www.bijouxremy@yahoo.com and save it in your favorites. You can always contact me there through the e-mail you find in CONTACT US in the main menu.
Remy Morales, August 2008