These printers have been boxed for two years and never used! All have recently been tested and will come in the original box with manual, though box shows wear. The infrared printer works with all HP graphic calculators. It works with four AA alkaline batteries or with the plug-in 'optional' AC adapter. Prints on 40 col thermal paper. Seller will pay shipping via UPS ground. Buyer must make contact and finalize terms of payment within three business days upon auction conclusion or looses rights to merchandise. Buyer to pay by Visa aypal preferred, or money order. Feel free to ask any questions you might have to "mailto:[log in to unmask] You might want to go the www.hewlettpackard.com and do a search on 82240B for more detailed information from the manufacturer.