CommandsSensor calibration
^JT - Head Test Interval
Sets printhead element test interval
^JT - Head Test Interval
Overview
The ^JT command sets the automatic printhead element test interval from the default 100 labels to any desired interval (0-65535 labels). Allows customizing how frequently the printer performs diagnostics to balance performance with monitoring.
Syntax
^JT#Parameters
- # = Test interval in labels (0-65535)
Description
- Configures test frequency
- Default: 100 labels
- 0 = Disabled
- Testing during formatting
Examples
Test Every 250 Labels
^JT250Disable Automatic Testing
^JT0Test Every 50 Labels
^JT050Considerations
Shorter Intervals (50-100)
- More frequent monitoring
- Catch problems early
- Slight throughput impact
- Best for critical operations
Longer Intervals (200-500)
- Less frequent testing
- Better performance
- Later problem detection
- For non-critical printing
Disabled (0)
- No automatic testing
- Best performance
- No element monitoring
- Risk of missing failures
Related Commands
~JN- Head Test Fatal~JO- Head Test Non-Fatal^SR- Set Head Resistance