^JH - Early Warning Settings
Plain English
Configures when the printer alerts you about low media or ribbon. Set thresholds so you get warnings before the printer runs out.
When to use
In production environments — get alerted before media runs out so an operator can prepare a new roll.
Syntax
^JHa,b,c,d
Parameters
| Parameter | Description |
|---|---|
a | Media low warning: distance in inches before empty |
b | Ribbon low warning: distance in inches before empty |
c | Media out handling: Y or N |
d | Ribbon out handling: Y or N |
Example
^XA ^JH10,10,Y,Y ^XZ
Warn when less than 10 inches of media or ribbon remain