Intermec 1555 Guía De Referencia

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System Specifications
E-9
E
Note:  *Depth of field measured using Code 39, ANSI Grade A
Print Contrast
The minimum print contrast is 40% reflectance difference (long range), and 25% 
reflectance difference (high visibility).
Ambient Light Immunity
The Sabre 1555 is immune to direct exposure from office level lighting and sunlight.
20 mil
22.9-190.5 cm (9-75 in)
40 mil
22.9-203 cm (9-80 in)
55 mil
190.5-408.9 cm (75-161 in)
Table E-6  
Depth of Field
High Visibility (1555Exx01xx0001) *  (continued)