The printer device null which uses the extended board for PCI bus joint

摘要

PROBLEM TO BE SOLVED: To reduce a device cost by reducing the cost of an extension board simplex. SOLUTION: This method is constituted in such a way that the internal local buses 201e, 202c of extension boards 201, 202 are connected to the PCI bus 203a of a PC mother board 203 via the PCI bridge 204c of an extension board 204 for PCI bus connection by arranging the extension board 204 for PCI bus connection equipped with the PCI bridge 204c, a connector 209 for PCI interface and connectors 207, 208 for internal local bus interface between the PC mother board 203 and the extension boards 201, 202, and connecting the connector 209 to PCI connectors 210-212 provided in the PC mother board 203, and the connectors 207, 208 to the connectors 205, 206 of the extension boards 201, 202.