ZPL commandsPrinter and media

~JFSet Battery Condition

Not supported by zplkit yet

Sets whether a battery-powered printer pauses when the battery voltage is low.

Format

~JFp

Parameter	Description	Default
`p`	Pause on low voltageY or N (N is suggested when running from a car battery adapter)	Y

~JEDisable Diagnostics

Ends the communications diagnostics mode started by ~JD and returns the printer to normal operation.

~JGGraphing Sensor Calibration

Prints a graph of the media sensor readings, which helps show why the printer misdetects labels or gaps.