Micro QR Code

Micro QR Code is capable of containing the following characters in each of the four different modes.

• Numeric: 0 - 9

• Alphanumeric: 0 - 9, upper case A - Z, space, $, %, *, +, -, ., :, /

• Binary (8-bit byte): JIS 8-bit character set (Latin and Kana) in accordance with JIS X 0201

• Kanji: Shift JIS values 8140 (HEX) – 9FFC (HEX) and E040 (HEX) – EAA4 (HEX). (These are values shifted from those of JIS X 0208. Refer to JIS X 0208 Annex 1 Shift Coded Representation for details.)

It is possible to manually switch between modes in a single barcode by encoding the appropriate mode change command as listed below.

• ^N will switch to Numeric mode.

• ^A will switch to Alphanumeric mode.

• ^K will switch to Kanji mode.

• ^B will switch to Binary mode.

If the data stream is Unicode, data that follows ^K and ^B will be converted to the Kanji encoding (see above). Data following ^N and ^A will be converted to the ANSI 1252 (Western languages) encoding.

An example of switching from numeric to alphanumeric to binary would be something like the following (Note the mode change commands are in bold):

^N12345678^AABCDEFG^B1248

If Mode is set to the default setting of Auto, the above mode change commands will not work as this functionality would be handled automatically by BarTender.

Micro QR Code contains one position detection pattern and data modules in the data area. The orientation of Micro QR Code is determined by the use of the position detection pattern box in the upper left corner. This pattern allows for the barcode to be scanned properly at any orientation. Data is stored in "modules", or dots, in the data area as binary information. Each black module represents a binary 1 and each white module represents a binary 0. The alignment pattern helps the decoding software re-synchronize in case of slight distortion of the code.

Three selectable levels of Reed-Solomon error correction are available which allow a barcode with up to 25% of damaged codewords to still read properly. The maximum number of characters permitted for this code is 35.

The minimum and maximum sizes for Micro QR are 11x11 modules to 17x17 modules.  The minimum quiet zone on all sides is the equivalent of 2 modules.