power.dtr_power_off
power.dtr_power_off

power.dtr_power_off

This command refers to the remote printer power control, and is used for power management. When Data Terminal Ready (DTR) is enabled the printer can be powered on and off via the Data Set Ready (DSR) signal. When DTR power off is enabled, a low to high transition will cause the printer to turn ON and a high to low transition will cause the printer to turn OFF.
The inactivity time-out is disabled while DSR is active.

Setvar

To turn DTR power on or off:
! U1 setvar "power.dtr_power_off" "value"
Values
"off"
"on"
Default
"on"

Getvar

To retrieve the current DTR power-off setting:
! U1 getvar "power.dtr_power_off"
Example
! U1 setvar "power.dtr_power_off" "off"