Patent ID: 8517266

Claim:
A checkout terminal comprising: a light source which illuminates an article; a scanner which detects an article code from the article illuminated by the light source, and picks up an image of the article illuminated by the light source and thus generates image data and decodes a barcode included in the image data and thus detects the article code; a placing table to place the article on; a scale device which measures a weight of the article placed on the placing table; a controller that performs operations, comprising: reading out, from a first storage unit in which weight information including information indicating a weight of an article and article information are stored for each article, the weight information and the article information of the article indicated by the article code detected by the scanner; determining whether or not the weight measured by the scale device after the article code is detected by the scanner is identical with the weight indicated by the weight information read out; a storing the article information read out in a second storage unit for storing article information of an article as a payment target, if it is determined that the weights are identical; controlling the light source so as to be turned off if it is determined that the weights are not identical, turning off the light source if the article code is detected by the scanner, and turns on the light source if it is determined that the weights are identical, and turns off the light source if it is determined that the weights are not identical, and wherein after it is determined that the weights are not identical, the controller turns on the light source in response to removal of the article related to the determination from the placing table, wherein the weight information includes identification information which identifies an article that is not a target of determination, and if the article is identified by the identification information included in the weight information read out as an article that is not a target of determination, the determination is not carried out using the weight information and the storing of the article information read out, together with the weight information in the second storage unit.