Hand Held Products IT4800 - Manual (Page 16)

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{3} QR CODE: Model 2 Version 3 (29 x 29 modules)
{4} Mask Pattern Reference #3, Error Correction Level
"M"
{5} Data Field: 44 data & 26 checks in 1 block(s) of
GF(256)
{6} X roughly = 0.025"
{7} [A] < Data Safety Margin = 100%
{8} [A] < Horizontal Print Growth = +20% of X
{9} [A] < Vertical Print Growth = +17% of X
{1} is the Encoded Message.
{2} is the Banner heading.
{3} identifies the Symbology (QR CODE) and lists the symbol's model, version
and size.
{4} lists this symbol's Mask Pattern and Error Correction Level.
{5} lists the numbers of Data and Check Words and their arrangement into
blocks.
{6} presents an approximate X-dimension.
Note: The reported X-dimension is approximate and based upon use of the
IT4410LR at 4.7 in (12 cm) (see "Reading Techniques" on page 1-1). If
you use different image engines, the X-dimension will vary. If you hold
the reader closer than 4.7 in (12 cm), it will have the effect of reporting a
larger than true X-dimension. Conversely, if you hold the reader farther
away than 4.7 in (12 cm), it will have the effect of reporting a smaller than
true X-dimension. Please contact HHP Application Support for additional
information. Refer to Chapter 3 for contact information.
{7} lists the Data Safety Margin. "M" is the recommended error correction
level for QR Code, so symbols encoded at "H" or "Q" will typically have
safety margins exceeding 100%, while those encoded at "L" are limited to
values below 50%.
{8} and {9} list the Horizontal & Vertical Print Growths, respectively.
MaxiCode
The Full Report from a typical scan looks like the following (line numbers have
been added in curly brackets):
{1} This is a representative Maxicode symbol
{2} >>> PQA from HHP <<<
{3} MAXICODE: Mode 4