发明名称 METHOD TO PREVENT METERED TONER GRAY MARKET LEAKAGE
摘要 A device, such as a printer or copier, identifies the type of module being used. If the type of module requires the device to receive an unlock code, the device prompts for the unlock code (which can be a hash of the serial number of the device). Once the unlock code is received, the device can be used with modules of that type. If the unlock code is not received, the device does not operate with modules of that type.
申请公布号 US2010129090(A1) 申请公布日期 2010.05.27
申请号 US20100695455 申请日期 2010.01.28
申请人 XEROX CORPORATION 发明人 GUAN LEONARD;WESSEL ROBIN Y.
分类号 G03G15/00 主分类号 G03G15/00
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