507:. In these uses, the ITF bar code symbol is usually printed surrounded with a thick black rectangular border called the Bearer Bar. The Bearer Bar surrounds the entire symbol and the quiet zones, abutting the ends of the bars. The purpose of a Bearer Bar is to equalize the pressure exerted by the printing plate over the entire surface of the symbol, and to enhance reading reliability by helping to reduce the probability of misreads occurring when the bar code is scanned at too large an angle so that the scanning beam crosses the top and/or bottom edge of the bar code rather than scanning across all bars, entering through the leftmost bar and exiting through the rightmost bar (or vice versa for a reverse scan). Such a "short scan" which does not extend through all of the bars obviously cannot result in a correct read of the complete bar code, but by the nature of the interleaved 2 of 5 code, it is possible for a short scan that begins in the middle of the bar code to begin with a pattern that corresponds to the required start pattern, or for a short scan that ends in the middle of the bar code to end with a pattern that corresponds to the required stop pattern. In this way the short scan, though incorrect, may appear to be a correct full scan. The Bearer Bar prevents this error, as a short scan will pass through the Bearer Bar as it passes across the top or bottom edge of the bar code. Since the Bearer Bar is much wider than any legitimate black bar, it will ensure that the short scan cannot appear to begin with the correct start pattern and end with the correct end pattern, forcing an invalid scan. The bar code can then be re-scanned, either automatically or manually. (If the short scan was not recognized as invalid, the misread data would be accepted and used as if it was good data, and there would be no chance to automatically rescan the bar code to correct the bad data.)
141:
1090:
36:
1100:
133:
798:
495:
782:
149:
627:
189:
ITF encodes pairs of digits; the first digit is encoded in the five bars (or black lines), while the second digit is encoded in the five spaces (or white lines) interleaved with them. Two out of every five bars or spaces are wide (hence exactly 2 of 5). The digits are encoded to symbols as
480:
Because digits are encoded by pairs, only an even number of digits can be encoded. Typically an odd number of digits is encoded by adding a "0" as first digit, but sometimes an odd number of digits is encoded by using five narrow spaces in the last digit.
510:
On 135 film (35 mm) canisters, interleaved 2 of 5 is used to identify the manufacturer, the film type, number of exposures and proprietary information in 6 digits. The barcode is located between the electrically read silver and black
502:
ITF is often used for marking product ID numbers or other codes, of various lengths, on item cartons and multi-unit cases. One specific instance of this, standardized by GS1, is the ITF-14 bar code used to mark packages with
476:
Before the actual pairs there is a start code consisting of nnnn (narrow bar – narrow space – narrow bar – narrow space), and after all symbols there is the stop code consisting of Wnn (Wide bar – narrow space – narrow bar).
625:, Patton, David Lynn; Travis, Lawrence Joseph & McPherson, Douglas Andrew, "Expanded film cartidge bar code", published 5 June 1995, issued 2 June 1998, assigned to Eastman Kodak Company
491:
There are specific constraints on the height and width of the bars and the width of the "quiet zones", the blank areas before the start and after the stop symbol.
856:
53:
659:
119:
515:
and the film can exit lip. It is optically scanned by many film-processing machines when the cartridge is inserted for developing.
136:
Example
Interleaved 2 of 5. Decoding of first two digits: Alternating bar/space nnnn (start code), bars WnnnW (1), spaces nWnnW (2)
100:
72:
1034:
57:
79:
592:
712:
992:
512:
86:
831:
947:
144:
Decoding
Interleaved 2 of 5. Every pair of digits is color-coded, showing the code and the value for each digit.
851:
504:
68:
555:
Note however that the latter strategy causes the last special pair of symbols to be narrower than other pairs.
462:
where "n" is a narrow line (bar or space) and "W" a wide line (2.0 to 3.0 times the width of a narrow line).
1055:
962:
183:
46:
789:
767:
652:
485:
179:
469:
with consecutive values of 1, 2, 4, 7, and 0, where the code 0 has a value of 11. This is similar to the
148:
622:
1065:
898:
531:
466:
1103:
1060:
178:, for ITF-14 barcodes, and on cartons of some products, while the products inside are labeled with
826:
93:
1124:
1093:
722:
645:
140:
1013:
1008:
171:
1070:
1018:
952:
1118:
737:
519:
518:
Identcode and
Leitcode are variants of interleaved 2 of 5 with check digits used by
927:
757:
912:
882:
877:
742:
717:
153:
35:
907:
752:
747:
600:
484:
A checksum can be added as last digit, which is calculated in the same way as
872:
976:
971:
937:
932:
916:
805:
702:
175:
17:
942:
922:
841:
836:
762:
707:
697:
692:
687:
682:
668:
536:
470:
167:
132:
1075:
1039:
887:
846:
732:
566:
797:
498:
An ITF-14 bar code. The thick rectangular border is the Bearer Bar.
494:
493:
147:
139:
131:
817:
781:
641:
29:
637:
1048:
1027:
1001:
985:
961:
896:
865:
816:
675:
60:. Unsourced material may be challenged and removed.
597:Everything you Never Wanted to Know About Barcodes
653:
8:
993:High Capacity Color Barcode (Microsoft Tag)
660:
646:
638:
120:Learn how and when to remove this message
193:
548:
567:"All About Interleaved 2 of 5 Barcode"
7:
1099:
58:adding citations to reliable sources
25:
1098:
1089:
1088:
796:
780:
591:Johnson, Nick (18 August 2005).
152:I2/5 on a 135 film can; part of
34:
45:needs additional citations for
1:
174:. It is used commercially on
683:Automatic Car Identification
565:Adams, Russ (20 June 2013).
166:) is a continuous two-width
513:DX Camera Auto-Sensing Code
1141:
832:Facing Identification Mark
1084:
774:
505:Global Trade Item Numbers
203:Mnemonic (using weights)
199:
852:Intelligent Mail barcode
1056:Supply chain management
713:European Article Number
499:
465:The wide lines form a
226:4+7=11, replaced by 0
156:
145:
137:
866:2D barcodes (stacked)
497:
151:
143:
135:
1002:Technological issues
593:"Interleaved 2 of 5"
532:Two-out-of-five code
467:two-out-of-five code
69:"Interleaved 2 of 5"
54:improve this article
1061:Object hyperlinking
170:symbology encoding
827:CPC Binary Barcode
728:Interleaved 2 of 5
500:
200:Bar or space width
160:Interleaved 2 of 5
157:
146:
138:
1112:
1111:
811:
810:
723:Industrial 2 of 5
460:
459:
130:
129:
122:
104:
16:(Redirected from
1132:
1102:
1101:
1092:
1091:
963:Polar coordinate
800:
784:
777:
776:
662:
655:
648:
639:
632:
631:
630:
626:
619:
613:
612:
610:
608:
603:on July 16, 2007
599:. Archived from
588:
582:
581:
579:
577:
562:
556:
553:
194:
125:
118:
114:
111:
105:
103:
62:
38:
30:
21:
1140:
1139:
1135:
1134:
1133:
1131:
1130:
1129:
1115:
1114:
1113:
1108:
1080:
1044:
1028:Other data tags
1023:
1014:Barcode printer
1009:Barcode library
997:
981:
957:
892:
861:
812:
772:
676:Linear barcodes
671:
666:
636:
635:
628:
621:
620:
616:
606:
604:
590:
589:
585:
575:
573:
564:
563:
559:
554:
550:
545:
537:Linear barcodes
528:
191:
126:
115:
109:
106:
63:
61:
51:
39:
28:
27:Type of barcode
23:
22:
15:
12:
11:
5:
1138:
1136:
1128:
1127:
1117:
1116:
1110:
1109:
1107:
1106:
1096:
1085:
1082:
1081:
1079:
1078:
1073:
1071:Mobile tagging
1068:
1063:
1058:
1052:
1050:
1049:Related topics
1046:
1045:
1043:
1042:
1037:
1031:
1029:
1025:
1024:
1022:
1021:
1019:Barcode reader
1016:
1011:
1005:
1003:
999:
998:
996:
995:
989:
987:
983:
982:
980:
979:
974:
968:
966:
959:
958:
956:
955:
950:
945:
940:
935:
930:
925:
920:
910:
904:
902:
894:
893:
891:
890:
885:
880:
875:
869:
867:
863:
862:
860:
859:
854:
849:
844:
839:
834:
829:
823:
821:
814:
813:
809:
808:
802:
801:
793:
792:
786:
785:
775:
773:
771:
770:
765:
760:
755:
750:
745:
740:
735:
730:
725:
720:
715:
710:
705:
700:
695:
690:
685:
679:
677:
673:
672:
667:
665:
664:
657:
650:
642:
634:
633:
614:
583:
557:
547:
546:
544:
541:
540:
539:
534:
527:
524:
458:
457:
454:
451:
448:
445:
442:
439:
435:
434:
431:
428:
425:
422:
419:
416:
412:
411:
408:
405:
402:
399:
396:
393:
389:
388:
385:
382:
379:
376:
373:
370:
366:
365:
362:
359:
356:
353:
350:
347:
343:
342:
339:
336:
333:
330:
327:
324:
320:
319:
316:
313:
310:
307:
304:
301:
297:
296:
293:
290:
287:
284:
281:
278:
274:
273:
270:
267:
264:
261:
258:
255:
251:
250:
247:
244:
241:
238:
235:
232:
228:
227:
224:
221:
218:
215:
212:
209:
205:
204:
201:
198:
128:
127:
42:
40:
33:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1137:
1126:
1123:
1122:
1120:
1105:
1097:
1095:
1087:
1086:
1083:
1077:
1074:
1072:
1069:
1067:
1064:
1062:
1059:
1057:
1054:
1053:
1051:
1047:
1041:
1038:
1036:
1033:
1032:
1030:
1026:
1020:
1017:
1015:
1012:
1010:
1007:
1006:
1004:
1000:
994:
991:
990:
988:
984:
978:
975:
973:
970:
969:
967:
964:
960:
954:
951:
949:
946:
944:
941:
939:
936:
934:
931:
929:
926:
924:
921:
918:
914:
911:
909:
906:
905:
903:
900:
897:2D barcodes (
895:
889:
886:
884:
881:
879:
876:
874:
871:
870:
868:
864:
858:
855:
853:
850:
848:
845:
843:
840:
838:
835:
833:
830:
828:
825:
824:
822:
819:
815:
807:
804:
803:
799:
795:
794:
791:
788:
787:
783:
779:
778:
769:
766:
764:
761:
759:
756:
754:
751:
749:
746:
744:
741:
739:
738:Matrix 2 of 5
736:
734:
731:
729:
726:
724:
721:
719:
716:
714:
711:
709:
706:
704:
701:
699:
696:
694:
691:
689:
686:
684:
681:
680:
678:
674:
670:
663:
658:
656:
651:
649:
644:
643:
640:
624:
618:
615:
602:
598:
594:
587:
584:
572:
568:
561:
558:
552:
549:
542:
538:
535:
533:
530:
529:
525:
523:
521:
520:Deutsche Post
516:
514:
508:
506:
496:
492:
489:
487:
486:UPC checksums
482:
478:
474:
472:
468:
463:
455:
452:
449:
446:
443:
440:
437:
436:
432:
429:
426:
423:
420:
417:
414:
413:
409:
406:
403:
400:
397:
394:
391:
390:
386:
383:
380:
377:
374:
371:
368:
367:
363:
360:
357:
354:
351:
348:
345:
344:
340:
337:
334:
331:
328:
325:
322:
321:
317:
314:
311:
308:
305:
302:
299:
298:
294:
291:
288:
285:
282:
279:
276:
275:
271:
268:
265:
262:
259:
256:
253:
252:
248:
245:
242:
239:
236:
233:
230:
229:
225:
222:
219:
216:
213:
210:
207:
206:
202:
196:
195:
192:
187:
185:
181:
177:
173:
169:
165:
161:
155:
150:
142:
134:
124:
121:
113:
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
928:Han Xin code
727:
617:
605:. Retrieved
601:the original
596:
586:
574:. Retrieved
570:
560:
551:
517:
509:
501:
490:
483:
479:
475:
464:
461:
188:
163:
159:
158:
116:
110:October 2022
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
913:Data Matrix
883:MicroPDF417
878:GS1 DataBar
818:Post office
743:MSI Barcode
718:GS1 DataBar
154:DX encoding
908:Aztec Code
753:Pharmacode
748:Patch Code
623:US 5761558
607:August 21,
543:References
473:bar code.
80:newspapers
948:rMQR Code
873:Codablock
576:5 January
571:BarCode 1
1125:Barcodes
1119:Category
1094:Category
977:ShotCode
972:MaxiCode
965:barcodes
938:MaxiCode
933:JAB Code
917:Semacode
820:barcodes
806:MaxiCode
703:Code 128
669:Barcodes
526:See also
190:follows:
176:135 film
18:Leitcode
1104:Commons
943:QR code
923:DotCode
842:POSTNET
837:PostBar
763:Telepen
758:Plessey
708:Codabar
698:Code 93
693:Code 39
688:Code 11
471:POSTNET
168:barcode
94:scholar
1076:CueCat
1066:Matrix
1040:Bokode
953:Boxing
899:matrix
888:PDF417
857:PLANET
847:RM4SCC
733:ITF-14
629:
438:Weight
433:2+7=9
410:1+7=8
387:7+0=7
364:2+4=6
341:1+4=5
318:4+0=4
295:1+2=3
272:2+0=2
249:1+0=1
172:digits
96:
89:
82:
75:
67:
986:Other
790:UPC-A
197:Digit
101:JSTOR
87:books
1035:RFID
609:2007
578:2017
456:9.5
73:news
768:UPC
184:EAN
182:or
180:UPC
164:ITF
56:by
1121::
595:.
569:.
522:.
488:.
186:.
919:)
915:(
901:)
661:e
654:t
647:v
611:.
580:.
453:0
450:7
447:4
444:2
441:1
430:n
427:W
424:n
421:W
418:n
415:9
407:n
404:W
401:n
398:n
395:W
392:8
384:W
381:W
378:n
375:n
372:n
369:7
361:n
358:n
355:W
352:W
349:n
346:6
338:n
335:n
332:W
329:n
326:W
323:5
315:W
312:n
309:W
306:n
303:n
300:4
292:n
289:n
286:n
283:W
280:W
277:3
269:W
266:n
263:n
260:W
257:n
254:2
246:W
243:n
240:n
237:n
234:W
231:1
223:n
220:W
217:W
214:n
211:n
208:0
162:(
123:)
117:(
112:)
108:(
98:·
91:·
84:·
77:·
50:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
