Code Readers / OCR

Code Readers can read 2D codes or bar codes and are available in installed or hand-held models.

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2 Dimensional Code Reader

2 Dimensional Code Reader

Data Matrix ECC200

The relationship between symbol size (number of cells) and the amount of information is shown on the right. The following sample shows a 12 × 12 symbol size.

Symbol size	*Max. amount of information that can be expressed 1**
Symbol size	Numbers	Alphanumeric characters	Alphanumeric symbols	JIS8 characters	Chinese characters (Shift JIS)
10×10	6	3	3	1	-----
12×12	10	6	5	3	1
14×14	16	10	9	6	3
16×16	24	16	14	10	5
18×18	36	25	22	16	8
20×20	44	31	28	20	10
22×22	60	43	38	28	14
24×24	72	52	46	34	17
26×26	88	64	57	42	21
32×32	124	91	81	60	30
36×36	172	127	113	84	42
40×40	228	169	150	112	56
44×44	288	214	190	142	71
48×48	348	259	230	172	86
52×52	408	304	270	202	101
64×64	560	418	372	278	139
8×18	10	6	5	3	1
8×32	20	13	12	8	4
12×26	32	22	20	14	7
12×36	44	31	28	20	10
16×36	64	46	41	30	15
16×48	98	72	64	47	23

QR Code Model 2

The relationship between symbol size (number of cells) and the amount of information is shown on the right. The following sample shows a 21 × 21 symbol size.

Symbol size (Version) *2	Error correction level	*Max. amount of information that can be expressed 1**
Symbol size (Version) *2	Error correction level	Numbers	Alphanumeric characters (capital only)	JIS8 characters	Chinese characters (Shift JIS)
21×21 (Version 1)	L (7%)	41	25	17	10
	M (15%)	34	20	14	8
	Q (25%)	27	16	11	7
	H (30%)	17	10	7	4
25×25 (Version 2)	L (7%)	77	47	32	20
	M (15%)	63	38	26	16
	Q (25%)	48	29	20	12
	H (30%)	34	20	14	8
29×29 (Version 3)	L (7%)	127	77	53	32
	M (15%)	101	61	42	26
	Q (25%)	77	47	32	20
	H (30%)	58	35	24	15
33×33 (Version 4)	L (7%)	187	114	78	48
	M (15%)	149	90	62	38
	Q (25%)	111	67	46	28
	H (30%)	82	50	34	21
37×37 (Version 5)	L (7%)	255	154	106	65
	M (15%)	202	122	84	52
	Q (25%)	144	87	60	37
	H (30%)	106	64	44	27
41×41 (Version 6)	L (7%)	322	195	134	82
	M (15%)	255	154	106	65
	Q (25%)	178	108	74	45
	H (30%)	139	84	58	36
45×45 (Version 7)	L (7%)	370	224	154	95
	M (15%)	293	178	122	75
	Q (25%)	207	125	86	53
	H (30%)	154	93	64	39
49×49 (Version 8)	L (7%)	461	279	192	118
	M (15%)	365	221	152	93
	Q (25%)	259	157	108	66
	H (30%)	202	122	84	52
53×53 Version 9)	L (7%)	552	335	230	141
	M (15%)	432	262	180	111
	Q (25%)	312	189	130	80
	H (30%)	235	143	95	60
57×57 (Version 10)	L (7%)	652	395	271	167
	M (15%)	513	311	213	131
	Q (25%)	364	221	151	93
	H (30%)	288	174	119	74

Source 2 Dimensional Code Symbol - QR Code Specifications JISX0510

*1.Regarding Max. Amount of Information
Even the same two dimensional could have different data amount depending upon their symbol size.
In other words, if the amount of data increases, the the symbol size must also increase. Also, in terms of the information handled by the code, the maximum allowable amount of information could depend on the used characters font. The maximum number of characters for the same sized symbol changes in QR code and Data Matrix in such orders as "number only">"number and alphanumeric characters">"Chinese characters".

*2.Regarding Version (QR Code)
The number representing the symbol size is "version" in QR Code . Version one is minimum and defined by number of cells in one side of square 21 × 21, and as the number of cells increase the version number also increases.

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