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2-15
Installation
Figure 2-12. Usable Scan Length Diagram
Testing The Usable Scan Length Method
Due to the variety of symbol sizes, densities, print quality, etc., there is no simple way to
calculate the ideal symbol distance. To optimize performance, use the
Testing The Usable
Scan Length
positioning method:
1. Measure the maximum and minimum distances at which the symbols can be read.
2. Check the near and far range on several symbols. If they are not reasonably
consistent there may be a printing quality problem that can degrade the
performance of the system. Symbol Technologies can provide advice on how to
improve the installation.
Note:
Poor quality symbols (from bad printing, wear, or damage) may not
decode well when placed in the center of the depth of field
(especially higher density codes). The scan beam has a minimum
width in the central area, and when the scanner tries to read all
symbol imperfections in this area it may not decode. After a
preliminary spot is determined using good quality symbols, test
several reduced quality symbols and adjust the spot for the best
overall symbol position.
3. Locate the scanner so the symbol is near the middle of the near/far range.
MiniScan
Host System
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Содержание MiniScan MS-120X
Страница 1: ...MiniScan MS 120X and MS 220X Integration Guide ...
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Страница 3: ...MiniScan MS 120X and MS 220X Integration Guide 72 63538 02 Revision A November 2003 ...
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Страница 211: ...9 115 Parameter Menus Baud Rate continued Baud Rate 4800 05h Baud Rate 9600 06h Baud Rate 19 200 07h 38 400 08h ...
Страница 241: ...9 145 Parameter Menus Numeric Bar Codes continued 4 5 6 7 ...
Страница 249: ...10 7 RS 232 Interface RS 232 Host Types continued Olivetti ORS4500 Omron OPOS JPOS Fujitsu RS 232 ...
Страница 251: ...10 9 RS 232 Interface Baud Rate continued Baud Rate 9600 Baud Rate 19 200 Baud Rate 38 400 ...
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Страница 363: ...13 81 Advanced Data Formatting MS 1207 MS 2207 Only Alphanumeric Keyboard continued ...
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Страница 367: ...13 85 Advanced Data Formatting MS 1207 MS 2207 Only Alphanumeric Keyboard continued K L N M O P R Q T S ...
Страница 368: ...13 86 MS 120X and MS 220X Integration Guide Alphanumeric Keyboard continued U V X W Y Z End Of Message Cancel ...
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Страница 370: ...13 88 MS 120X and MS 220X Integration Guide Alphanumeric Keyboard continued k l n m o p r q t s ...
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Страница 394: ...A 18 MS 120X and MS 220X Integration Guide ...
Страница 406: ...Index 6 MS 120X and MS 220X Integration Guide ...
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