Microscan QX-870 User Manual page 152

Symbologies
Code 93
Used in some clinical applications.
Code 93 is a variable-length, continuous symbology employing four element widths. Each
Code 93 character has nine modules that may be either black or white. Each character
contains three bars and three spaces.
Fixed Symbol Length Status
When disabled, the scanner will accept any Code 93 symbol provided is doesn't exceed
the system's maximum capabilities.
When enabled, the scanner will reject any Code 93 symbol that doesn't match the fixed
symbol length.
Fixed Symbol Length
This is the symbol length value against which all Code 93 symbols will be compared.
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QX-870 Industrial Raster Scanner User Manual