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    • 6. 发明申请
    • SYSTEM UPDATE PROTOCOL AND BOOTABLE CD CONTROLLER
    • 系统更新协议和可启动CD控制器
    • WO03100610A8
    • 2004-03-04
    • PCT/US0316752
    • 2003-05-28
    • TOSHIBA CORPTOSHIBA TEC KKWU VINCENTLEE SHENG
    • WU VINCENTLEE SHENG
    • B41J29/38G06F3/12G06F9/445G06F11/00G06F13/00G06F9/45
    • G06F8/65
    • A system update protocol. A software update is packed into a packed file (item 104 of fig. 1), which packed file includes a unique signature. The packed file is uploaded from a trusted client computer (100) to the network printer (102). The integrity of the packed file is automatically checked on the network printer by performing a checksum and signature comparison (130) to ensure the packed file is transmitted correctly (132). The packed file is resent (140 to 118) when the packed file is determined to be corrupt. The packed file is unpacked into a predetermined directory structure of unpacked files. The client computer then signals (154) the network printer cause installation (150) of the software update on the network printer. In another embodiment, the printer controller includes one or more non-volatile memory elements for storing print/fax/scan data and printer controller system parameters. The printer controller is bootable from the non-volatile storage medium, such as a CD-ROM or other removable type data disc.
    • 系统更新协议。 软件更新被打包到打包文件(图1的项目104)中,该打包文件包括唯一的签名。 打包文件从受信任的客户端计算机(100)上传到网络打印机(102)。 通过执行校验和和签名比较(130)在网络打印机上自动检查打包文件的完整性,以确保打包文件被正确传送(132)。 打包文件被确定为已损坏时重新发送(140至118)。 打包的文件被解压缩成未打包的文件的预定目录结构。 然后,客户端计算机向网络打印机发出信号(154)网络打印机导致软件更新的安装(150)。 在另一个实施例中,打印机控制器包括用于存储打印/传真/扫描数据和打印机控制器系统参数的一个或多个非易失性存储器元件。 打印机控制器可从非易失性存储介质(诸如CD-ROM或其他可移动类型的数据盘)引导。