Patent ID: 8219231
Filing Date: 2012-07-10
Classification: G05B,G06Q,Y02P

Abstract:
1. A quality control apparatus, comprising: a first extracting unit that extracts, from a first time series distribution of defects that have occurred in manufacturing electronic equipment, a time period at which a rate of manufacturing defect increases by a first predetermined percentage and a percentage of the manufacturing defect exceeds a second predetermined percentage; a part specifying unit that specifies a component of the electronic equipment involved with the manufacturing defect; a second extracting unit that extracts, from a second time series distribution of a rate of use of the component for each of suppliers which supply the component specified by the part specifying unit, a change of the rate of use of the component in the manufacturing equipment for each of the suppliers; and a part supplier specifying unit that specifies one or more of the suppliers as a source of the manufacturing defect if the change of the rate of use of the component in the manufacturing equipment for said one or more of the suppliers during the extracted time period exceeds a third predetermined percentage, wherein the electronic equipment comprises a print processing device and the component comprises one of an information processing circuit, a convey roller, and a developing unit.