Abstract: A status information receiver is communicatively connected to at least one printing device via a network, and adapted to receive status information transmitted from the printing device. The status information is indicative of an operation state of the printing device. An error information detector is adapted to detect whether error information is included in the status information. The error information is indicative of an error occurred in the printing device. A repair information generator is adapted to generate repair information based on the error information. The repair information is indicative of an item in the printing device to be repaired.

Abstract: A status information receiver is communicatively connected to at least one printing device via a network, and adapted to receive status information transmitted from the printing device. The status information is indicative of an operation state of the printing device. An error information detector is adapted to detect whether error information is included in the status information. The error information is indicative of an error occurred in the printing device. A repair information generator is adapted to generate repair information based on the error information. The repair information is indicative of an item in the printing device to be repaired.

Abstract: A sales management device 20 is installed at the side of a manager (manufacturing company MC), who manages the sales of parts, and is connected via an intranet 11 to seller computers 31, 32, and 33, each of which is installed at the side of a selling company that sells the parts. This sales management device 20 is provided with a first data base part 23, which stores parts information, and a first control part 22, which transmits parts information to seller computers 31, 32, and 33, receives processed information resulting from the processing of parts information in accordance to dealers by seller computers 31, 32, and 33, and stores the processed information in first database part 23. By this sales management device 20, manufacturing company MC, which manages the sales of parts, can carry out unified management of the actual sales circumstances of the selling companies, and can thus readily grasp the levels of services provided by the sellers to the customers and consequently standardize the service level.