Abstract: In a printer, a controller controls a printing portion to execute a sample print to print on a sheet a plurality of barcodes. Each of the plurality of barcodes is represented by a received barcode data and printed in a different printing condition. The controller controls a reading portion to read the plurality of barcodes printed on the sheet in the sample print process to obtain a plurality of sets of scan data corresponding to respective ones of the plurality of barcodes. The controller performs a quality determination process to determine qualities of the plurality of printed barcodes based on the respective ones of the plurality of sets of scan data, and a printing condition setting process to set a printing condition based on the qualities determined in the quality determination process. The set printing condition is to be used to print a barcode by the printing portion.

Abstract: A print device prints prescribed information on a plurality of print media including at least one first medium and at least one second medium arranged subsequent to the at least one first medium on a long medium. The plurality of print media corresponds to a zone number that is smaller than a total number of the print media to be printed. The print device judges, for each of the at least one first medium, a print quality or a degree of the print quality. The judging the print quality or the degree of the print quality is based on a prescribed result obtained the print content of the at least one first medium on which the printing has been performed. The print device prints, on the at least one second medium, judgment result information indicating a result of the judging the print quality or the degree of the print quality.

Abstract: In a printer, a controller controls a printing portion to execute a sample print to print on a sheet a plurality of barcodes. Each of the plurality of barcodes is represented by a received barcode data and printed in a different printing condition. The controller controls a reading portion to read the plurality of barcodes printed on the sheet in the sample print process to obtain a plurality of sets of scan data corresponding to respective ones of the plurality of barcodes. The controller performs a quality determination process to determine qualities of the plurality of printed barcodes based on the respective ones of the plurality of sets of scan data, and a printing condition setting process to set a printing condition based on the qualities determined in the quality determination process. The set printing condition is to be used to print a barcode by the printing portion.