A printer capable of performing communication with a server via a firewall over a printer network includes a roll paper printing mechanism configured to perform printing on roll paper, a cut-form paper printing mechanism configured to perform printing on cut-form paper, and a processor configured to transmit, to the server, at least pairs of address information for the printer and status information for the printer, receive instruction information having been transmitted by the server, and execute processing based on the instruction information, and the processor causes transmission timing points for the transmission of the pairs to the server to differ for each of kinds of the status information.