Printronix SV 2 Series, Operator'S Manual

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254764-001 Rev B 15
Pos Chars Parameter
L 86 2 Two digits; decode header indicator “^^”
[chars] 88 … Bar code data characters (variable length).
Z last 1 Programmable ASCII character indicates end of transmit;
See ~SSbbbeee command. LF (line feed) required for ScanVision.
y * - The symbology identifiers use groups of numbers to identify each symbology . The range of
possible values could potentially span 100 for each symbology category. The Symbology Identifier Table
lists each identifier group with the corresponding symbology.
* A no read condition is indicated by all four bytes yy, M and N set to 0 in a transmission. All other
data is therefore not valid.
See the ~OS# command for other transmission data formats.
Symbology Identifier Table
Identifiers Symbology Category
02 I 2 of 5
03 Code 128
04 Code 93
05 Code 3 of 9
06 Codabar
11 UPC-A
15 UPC-A w/add-on (2)
19 UPC-A w/add-on (5)
12 EAN-13
16 EAN-13 w/add-on (2)
20 EAN-13 w/add-on (5)
13 EAN-8
17 EAN-8 w/add-on (2)
21 EAN-8 w/add-on (5)
14 UPC-E
18 UPC-E w/add-on (2)
22 UPC-E w/add-on (5)
INSTALLATION AND SETUP
Scanner positioning and proper system setup are extremely important for proper SV 2 Series operation. The
following sections describe the most common setup possibilities in detail. Some knowledge of SV 2 Series
operation is recommended to best follow the steps.
Please review Appendix A – SV 2 Series Setup Hints –
for a more basic description of SV 2 Series operation and scanner positioning and calibration.
Scanner positioning is the most important step in an installation. Positioning is important in order to
provide accurate analyses and maximum decoding performance. The scan distance must be set accurately
to achieve the proper beam focus in order to detect printer flaws and failures such as a worn ribbon (matrix
printing), low toner (laser printing), voids (flexo printing), burned pixels (thermal printing), etc. The scan
angle is important to accurately measure bar code and substrate reflectance values
.
Setup is important to ensure proper interface to print mechanisms, host computers, etc.