Operation; Basic Validator Setup - Printronix SL5000r User Manual

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Operation

Basic Validator Setup

Unit Positioning
The validator must be positioned so that the scanning beam covers the entire area
containing the bar codes, including the area required for quiet zones. The beam width
can be moved horizontally to the left or right (see "Shifting the Scanning Beam" on page
39).
If a bar code is completely outside of the scanning area, straddles an edge, or does not
pass completely under the scanning beam, the validator interprets it as a missing bar
code and generates error conditions.
Validator Front Panel
The front panel of the validator has the following controls and indicators:
 POWER: Indicates the validator is at full power.
 CALIBRATION: Flashes when the validator is in calibration mode. See page 40 for
 READ: Flashes when the validator is reading a bar code.
 1 and 2: Used for maintenance purposes only.
 RESET: This button has three functions, depending on how long you hold the button
Time RESET Button Is Depressed
Less than 2 seconds
More than 4 but less than 6 seconds
More than 6 seconds
CAUTION Do not lift the printer by the validator unit or by the bracket.
CAUTION The validator contains sensitive electronic equipment. Do not jar or drop the unit.
calibration instructions.
down. See Table 3 on page 43.
Table 3. RESET Button Settings
Result
Turns on the scanning beam
Validator goes into calibration mode
Resets validator to the last good calibration
settings and turns off the scanning beam
43