In one embodiment of the invention, an inkjet printer selectively energizes ink ejection elements in a scanning printhead such that the top nozzles of the printhead do not always print the first line of text in a scan. The method allows for searching in a database of historical fault log data from a plurality of machines for the occurrence of respective fault patterns indicative of incipient failures of a respective machine subsystem. The second coil layer includes a reference coil and a second drive coil. Characterization data is input for a configuration memory cell of the tile module that specifies a data output pin of the configuration memory cell. A pixel electrode is formed on the flat surface with a certain distance from the common electrode. A spherical recess 1C is formed in the top portion of the semi-spherical surface 1A to define a space 4 which serves as a reservoir of lubricant oil between the spherical recess 1C and the semi-spherical recess 2B.