Easy-to-read display includes 12 characters on 1 line. * 2-color printing — black for positive, red for negative. Uses 2 1/4" wide paper (sold separately) * Double-zero key is great for entering dollar amounts * Powered by AC.2 9/10"H x 8 9/10"W x 13 1/10"D * The AT-P3000 offers 14 functions. Calculates tax, profit margin, percentage add-on/discount, memory calculations and more.Easy-to-use 4-key memory. Recall, clear, add to and subtract from 1 memory.Prints 3.7 lines per second (lps). * Item counter keeps track of the number of items.