Microscan QX-870 User Manual page 162

Symbologies
Quiet Zone
Used when the leading and trailing edges of the symbols are smaller than the standard
margin or other objects encroach into the margins.
Allows the scanner to read 1D symbols with quiet zones less than 8 times the width of the
narrow bar element. The Quiet Zone is the space at the leading and trailing ends of a
symbol. Each quiet zone can be as narrow as only five times the width of the narrow bar
element when Quiet Zone is Enabled and set to Narrow or Narrow, Enhanced.
Note: Do not use Narrow or Narrow, Enhanced when
enabled for Code 39, unless
Note: Any Quiet Zone setting other than Standard will increase processing requirements.
Standard
The scanner locates symbols using a standard 8x Quiet Zone requirement.
Narrow
The scanner locates symbols using a 5x Quiet Zone requirement.
Standard, Enhanced
The scanner locates symbols using an enhanced algorithm for standard 8x Quiet Zones.
The enhanced algorithm has a higher tolerance for leading-edge "noise", and is particularly
useful for high density symbols.
Narrow, Enhanced
The scanner locates symbols using an enhanced algorithm for 5x Quiet Zones. The
enhanced algorithm has a higher tolerance for leading-edge "noise", and is particularly
useful for high density symbols.
This setting is the Default because it overcomes many symbol quality issues, such as
printing and placement inconsistencies.
5-96
Symbol Reconstruction
QX-870 Industrial Raster Scanner User Manual
Large Intercharacter Gap
is also enabled.
is