Patent ID: 7493385

Claim:
A client support system comprising: a client device comprising a display unit for analyzing a page description language to be displayed; and a server device accessed by the client device via a communication line and providing the client device with an operation manual in which each page is described in the page description language; wherein the client device comprises a monitor unit for monitoring the status of the client device and a communication control unit for accessing the server device via the communication line, and the monitor unit requests from the server device a page in the operation manual in accordance with the status of the client device via the communication control unit, the server device sends the page requested by the client device to the client device, and the client device comprises at least two routes of power supplies that are independent from one another, and the display unit, the monitor unit and the communication control unit are connected only to a second route of power supply that is different from a first route of power supply to be turned off at the time of a maintaining process, so that the display unit, the monitor unit and the communication control unit receive power supply from the second route of the power supply at both times of a normal operation and the maintaining process.