Printronix Online Data Validator - Manual (Page 71)

Advanced Validator Options
71
7. Press
↓ and ↵
at the same time to lock the
↵
key, then press
PAUSE to take the printer offline.
8. Press PAUSE again to put the printer online.
Gain
This menu item sets the scanner gain setting (when a non zero
value is set). This allows you to adjust the amplitude (height) of the
space/bar transitions as seen on a Scan Profile to optimize the
validator hardware for applications where standard settings make
the bar codes unreadable. The range is from 0 to 255.
NOTE: If you want the validator to automatically adjust its Gain
setting during a validator calibration, set Gain = 0 and
Offset = 0. Gain and Offset are automatically adjusted
during calibration only if both Gain = 0 and Offset = 0.
Offset
This menu item sets the scanner offset setting (when a non zero
value is set). This allows you to adjust the vertical position of the
Scan Profile to guarantee that the validator hardware is reading the
bar codes within the optimal range. You can adjust this to place the
bar code profile in the center of the profile scale above 10% and
below 90%. The range is from 0 to 255.
NOTE: If you want the validator to automatically adjust its Offset
setting during a validator calibration, set Offset = 0 and
Gain = 0. Offset and Gain are automatically adjusted during
calibration only if both Offset = 0 and Gain = 0.