an apparatus and method for cleaning a metering roll having a composite sleeve or a metal core with a ceramic coating involves the use of a laser . the roll &# 39 ; s ceramic coating is covered with a matrix of cells that can get plugged with a polymeric contaminant , such as dried ink . the laser is uniquely focused to provide a beam intensity profile that matches multiple curved surfaces of the cells . the laser applies heat to each cell at a temperature that destroys the contaminant , yet leaves the ceramic coating intact . the heat is rapidly delivered and rapidly removed from the roll to minimize the amount of heat conducted to the roll &# 39 ; s metal core . in addition , a special pneumatic guide bearing makes it possible to clean the metering roll while it is still in the printing press .