Patent ID: 8548342
Filing Date: 2013-10-01
Classification: G03G

Abstract:
1. A consumer replaceable unit monitor (CRUM) unit mountable to a replaceable unit of an image forming apparatus, the CRUM unit comprising: a storage unit to store an O/S (Operating System) for operating the replaceable unit and driving conditions with regard to the replaceable unit; a detecting unit to monitor a temperature of a location of the replaceable unit in the image forming apparatus; a CPU to operate and manage the replaceable unit by using the O/S, separately from a main controller of the image forming apparatus, wherein the driving conditions comprise a plurality of driving voltage information corresponding to a plurality of temperature ranges, if a variation of an operation environment is detected by the detecting unit, the CPU reads and extracts the driving voltage information corresponding to the detected temperature voltage among the plurality of driving voltage information stored in the storage unit and transmits the extracted driving voltage information to the main controller of the image forming apparatus via a serial interface.