Abstract: An image forming system, comprises an image forming apparatus including a first memory section to store a program to conduct a predetermined operation, and an image forming apparatus connecting section to connect the image forming apparatus with a network; and an administrating apparatus including an administrating memory section to store a rewrite program for the image forming apparatus, and an administrating apparatus connecting section to connect the administrating apparatus with the network. The image forming apparatus accesses the administrating apparatus through the network, obtains the rewrite program stored in the administrating memory section, and rewrites the program stored in the first memory section with the obtained rewrite program.

Abstract: An image forming apparatus administration system, including: an image forming apparatus, located in the first local network and connected to the Internet through the first firewall server of the first local network; an administration computer, located in the second local network and connected to the Internet through the second firewall server of the second local network; a relaying server, located outside the first local network and the second local network, connected to the Internet and including a relaying storage; in which the administration computer at least transmits first passing information for administrating the image forming apparatus by accessing the relaying server or receives second passing information, corresponding a state of the image forming apparatus and stored in the relaying storage of the relaying server; and the image forming apparatus executes an access to the relaying server at a predetermined timing so as to obtain the first passing information, stored in the relaying storage, or to tr

Abstract: A method of inspecting bodies having a multiplicity of parallel channels extending therethrough according to the invention comprises steps of irradiating light beams onto one end of the body in an axial direction of the channels to project an image of the body on a screen and finding defects such as plugged channels or invisible cracks judging from dark or bright portions in the projected image.A device for carrying out the method according to the invention comprises transferring means intermittently driven and carrying at an interval the bodies, a projector for irradiating light beams onto one end of the body, a screen opposing to the other end of the body, and a detector for finding defective bodies with the aid of bright or dark portions of a magnified image transmitted from the screen.