Patent ID: 7708360

Claim:
A computer network system comprising; a POS printer, said POS printer comprising a paper tape roller, a first print head, a second print head; said paper tape roller for advancing or retracting a paper tape roll, said paper tape roll having a first side and a second side; said first print head designed to face a first side of said paper tape roll; said second print head designed to face a second side of said paper tape roll; a controller for controlling signals to said first print head and said second print head and said roller to print on said paper tape both a register receipt on a first side of said paper tape and advertising content on a second side of said paper tape; and a POS terminal and a marketing computer, and wherein said POS printer comprises logic for controlling said printer to hold printing of a register receipt for a purchase transaction at a POS based upon data transmitted to said printer from either said POS terminal or a POS computer until expiration of a specified time after receipt by said POS printer of an EOT signal for said purchase transaction.