Abstract: A process for enabling a printer to separate print jobs while using a protocol for receiving page description data that does not have an end-of-file indicator defined. It is assumed that the each job received by the printer has a first packet with a size of 1 byte, and a content of one null character, a number of data packets having 512 bytes each, and a last packet having the remainder of the bytes of the job which usually will number between 1 and 512 bytes, exclusive. This process also assumes that the printer can send a status packet back to the originator of the data packets, a print server, verifying the receipt of a packet. The system now can generate a hard stop between jobs by having the printer verify the receipt of the previous packet for every current packet received, resulting in a flow of status packets back to the server that is one packet out of phase.