Hand Held Products IT4800 - Manual (Page 18)

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{7} [A] (Ok) < Bar Widths = 0.022 in.
{8} [A] (Ok) < Inter-Bar Gaps = 0.023 in.
{1} is the Encoded Message.
{2} is the Banner heading.
{3} identifies the Symbology, (POSTNET or PLANET Code), and lists also the
symbol's size and allowed range of measured width.
{4} lists the Bar Sequence, "1" representing a tall bar and "0" representing a
short one.
{5} lists the Average Height of the tall bars, specified to fall within 0.115 to
0.125 in. The grades are assigned as:
A if within the middle 67% of the specified tolerances, else
B if within the specified tolerances, else
C if within a range 25% wider(!) than the specified tolerances, else
D if within a range 50% wider(!) than the specified tolerances, else
F otherwise
Note: These forgiving grade assignments, employed throughout the postal
symbologies, reflect what are generally tight and unforgiving print
specifications.
In Screening modes, this parameter is reported as ""Tall" Bars are too Short (or
Long) (0.xxx in.)" when that is the case.
{6} lists the Average Height of the short bars, specified to fall within 0.040 to
0.060 in.
In Screening modes, this parameter is reported as ""Short" Bars are too Short
(or Long) (0.xxx in.)" when that is the case.
{7} lists the Average Width of the bars, specified to fall within 0.015 to 0.025 in.
In Screening modes, this parameter is reported as "Bars are too Narrow (or
Wide) (0.xxx in.)" when that is the case.
{8} lists the Average Space Width between bars, specified to fall within 0.012
to 0.040 in.
In Screening modes, this parameter is reported as "Spaces are too Narrow (or
Wide) (0.xxx in.)" when that is the case.