COMMUNICATION CONTROLLER, DATA PROCESSING METHOD FOR THE COMMUNICATION CONTROLLER AND STORAGE MEDIUM STORING PROGRAM READABLE BY COMPUTER

摘要

PROBLEM TO BE SOLVED: To process received data without an error by arranging a data communication environment so as to allow the controller to have provision for a packet communication request by the user flexibly while the user or the like sets the presence of use of a specific packet protocol. SOLUTION: In the case of 2-way communication with a host 2, the presence of use of a packet protocol is set in advance from a panel device 5, a CPU 7 references a packet protocol flag 15a in an NVRAM 15 and controls selection of a transfer destination of data in received data to a print data buffer 10c or a control command buffer 10d based on the presence of use of the packet protocol.