Hand Held Products 4410 User Manual page 10

{8} [B] < Edge Accuracy = 59%
{9} [C] < Print Growth = -43% of X
where:
{1} is always the Encoded Message, the usual data output. In this case "This
is a representative PDF417 symbol".
{2} is a standard Banner heading that marks the start of the PQA portion of the
output.
{3} identifies the Symbology, PDF417 (or its derivative COMPOSITE-C), and
lists other characteristics of this symbol: the height and width of the data
field, the numbers of data and check characters, and the corresponding
Error Correction Level.
{4} presents an approximate X-dimension, presuming normal viewing dis-
tance.
In the Screening PQA modes, the Symbology Identification from Line {3} is
combined with the approximate X-dimension from Line {4}.
Note: The reported X-dimension is approximate and based upon use of the
4410LR 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 Hand Held Products Application Support for
additional information. Refer to
{5} lists the average Row Height, assigning the grades as:
A if Row Height >= 2.5 X
F otherwise
In Screening modes, this parameter is reported as "Rows are Too Short (2.2X)"
when that is the case.
{6} lists the Useful Row Height, which is the measured Row Height times the
codeword yield (listed in parentheses), the percentage of symbol characters
scanned that actually decode. The grade is assigned as:
A if Useful Height >= 2.0 X, else
B if Useful Height >= 1.6 X, else
C if Useful Height >= 1.3 X, else
D if Useful Height >= 1.0 X, else
F otherwise
In Screening modes, this parameter is reported as "Useful Row Height is Too
Short (1.5X)" when that is the case.
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Chapter 3 for contact information.