Contents1 The linear imager: 12 Basic configuration codes 22.1 Enabling codes 22.2 Reader optimization 33 Advanced configuration 44 Codabar 44.1 Symbology identifier 44.2 CLSI library system 54.3 Check digit (AIM recommendation) 54.4 Barcode length 54.5 Concatenation 64.5.1 Concatenation mode 65 Codablock 65.1 Codablock A 65.1.1 Symbology identifier 76 Code 11 86.1 Symbology identifier 86.2 Check digit 86.3 Barcode length 87 Code 39 97.1 Symbology identifier 97.2 Format 9