^JU — Configuration Update
Plain English
Saves or restores the printer's configuration. Save (S) writes current settings to flash so they survive power cycles. Restore (R) reloads saved settings.
When to use
After configuring the printer — save so settings persist. Or restore factory defaults if something goes wrong.
Syntax
^JUa
Parameters
| Parameter | Description |
|---|---|
a | Action: S (save current), R (restore saved), F (restore factory) |
Example
^XA ^JUS ^XZ
Save current configuration to flash