The encode regulation of bar code label and code are made divisional (the import

Encode regulation uniqueness: Akin norms is akin product correspondence is same a product code, different specifications answers akin product the product code that should differ. According to the different property of the product, be like: Weight, pack, norms, odour, color, appearance is waited a moment, gift different product code.

Permanent: Once product code allocates, change no longer, and be all one's life. Produce no longer when this kind of product when, its corresponding product code can be laid aside only, must not repeat reinstate repartition to give the commodity of other. Without the meaning: Have the need that sufficient capacity changes often with getting used to a product to assure code, had better use the ordinal code that does not have a meaning. The code of form code makes discriminative UPC:(Unified product code) can state the number has A, B, C, D, E4 only word of digit of E - 7 of version of word of digit of version version A - 12 is desired result last times size is tall 1 " of wide 1.5 " , and setting basically should be used with clarity mix at the United States add area of W give oneself airs, when be being used at the branch such as industry, medicine, storehouse to undertake decipher as 12 when UPC,

The definition is as follows:

Number of the 1st = marks (already by UCC (uniform code committee) what build) .

2-6 the label name of Home = manufacturer (include the first)

The plant family property with exclusive 7-11 = tastes code

Desired result of the 12nd = (Used For Error Detection)

Code 39: Can represent letter, number and other a few symbols in all 43 character: A -Z, 0 - 9, - . $/ % , the length of Pace bar code is transformable regards desired result of initiative, full stop as the code with “*” date normally need not code density uprights at 3 - 9.4 character / every inches of clear area is narrow 10 times use at industry, books, and on management of ticket card automation

Code 128: State high density degree is occupied, string string grows a mark changeably code of embedded desired result has 3 kinds of different version: A, b, and C can be in respectively with 128 character A, b, or C is used at in 3 string gather retail and industry, storehouse, wholesale

Interleaved 2-of-5 (I2 Of 5) : Can state digital 0 -9 grows degree of successional bar code changeably only, all with express code for nothing, the first number by begin, the 2nd number is compared by White Area of empty group voidance narrow 10 times wider apply at commodity wholesale, storehouse, airport, production / pack identify, the knowledge of the bar code in industry is read rate is high, scan reliably at securing a scanner applicably the density in all one dimension bar code is highest

Codabar (Kudeba bar code) : Can express digital 0 - 9, character $ , , - , still have can use as only initiative / the A of full stop, b, 4 character grow C D changeably degree without desired result the clear area in applying at station of stock management, library, blood and current airport package to send is compared narrow 10 times wider be not successional bar code, every character expresses to be 4 3 sky
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