Omron 2D CODE READER User Manual page 109

Appendix
Symbol size
(version)
45 × 45
(Version 7)
49 × 49
(Version 8)
53 × 53
(Version 9)
57 × 57
(Version 10)
Source: 2D Codes, Basic Specifications for QR Code (JIS X 0510)
Maximum Data Capacity
Even with the same 2D code, the maximum quantity of information that can be stored depends on
the symbol size of the code.
In other words, the symbol size must be increased to increase the data capacity.
The data capacity also depends on the type of characters used for the information contained in the
code. With QR and DataMatrix Code, the maximum number of characters for the same symbol size
will be greatest for numbers only and then for alphanumerics, and will be the least with 2-byte
characters.
The data capacity also depends on the character type, and the order and combination of characters
used.
V400-F050/250/350
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User's Manual
Error correction level
Numeral
(ECC level)
L (7%) 370
M (15%) 293
Q (25%) 207
H (30%) 154
L (7%) 461
M (15%) 365
Q (25%) 259
H (30%) 202
L (7%) 552
M (15%) 432
Q (25%) 312
H (30%) 235
L (7%) 652
M (15%) 513
Q (25%) 364
H (30%) 288
Data capacity
Alphanumeric 8-bit byte
(uppercase) Byte
224 154
178 122
125 86
93 64
279 192
221 152
157 108
122 84
335 230
262 180
189 130
143 98
395 271
311 213
221 151
174 119
Japanese
character
95
75
53
39
118
93
66
52
141
111
80
60
167
131
93
74