QR code is one of very few barcode types that allow encoding of Kanji and Kana.

An example:

Statistics

• The symbol size of the QRcode is 21 x 21 modules to 177 x 177 modules corresponding to Version 1-40, increasing in steps of 4.
• The numeric data is maximum capacity 7089 digits.
• The alphanumeric data maximum capacity is 4296 characters.
• The byte data maximum capacity is 2953 bytes.
• The Kanji data maximum capacity is 1817 characters.

Error Correction Level

This barcode type uses a Reed-Solomon error detection and correction scheme. There are four levels of error correction, each with increasing amount of error recover. Note: The higher the error level, the less data that can be stored in the barcode.

• "L" - 7% error recovery
• "M" - 15% error recovery
• "Q" - 25% error recovery
• "H" - 30% error recovery