The present invention provides a system and a method for utilizing a parity protection module to back up data on striped aggregates. Upon installation, the ink cartridge can be coupled to one or more wicks in the printhead for establishing fluid communication between one or more chambers in the ink cartridge and nozzles through which ink exits the printhead during operation. A traditional method of synchronizing a receiver to an incoming signal is to use a slicer to determine a received symbol and then to compare the determined symbol to the incoming waveform, in order to adjust the phase of the slicer with respect to the incoming signal. The method also includes measuring outputs of the detectors in response to moving an image along the length of the filter and generating a spectrum response function for the image based on the outputs of two or more rows of the detectors using a time delayed integration method. A first end and a first side of each module has a first integral feature to provide a spacer and a connection with an adjacent module and a second end and a second side of each module has a second integral feature to provide a spacer and a connection with another adjacent module. An indentation is formed on the back surface of the transparent pad such that its rate of light transmission is locally changed.