Page 214 - ZPL II Programming Guide

194 ZPL Commands
~JF

~JF

Set Battery Condition

Description There are two low battery voltage levels sensed by the PA/PT400™ printers.
When battery voltage goes below the first level, the green LED begins flashing as a warning
but printing continues. When this warning occurs, it is recommended to recharge the battery.

As printing continues, a second low voltage level is reached. At this point, both green and
orange LEDs flash as a warning, and printing automatically pauses.

When pause on low voltage is active (~JFY) and the battery voltage level falls below the
second low voltage level, printing pauses and an error condition is displayed as an indication
that the printer should be plugged into the battery charger. By pressing FEED, printing
continues on a label-by-label basis, but there is a high risk of losing label format information
due to the continued decrease of battery voltage.
When pause on low voltage is not active (~JFN), and the battery voltage level falls below the
second low voltage level, printing continues and the orange LED remains off. If the battery
voltage continues to decrease, label information could be lost and cause the printer to stop
operating. This option should be selected only when the printer is connected to the Car Battery
Adapter. From time to time the printer might sense that battery voltage is below the first low
voltage level, but due to the continuous recharging of the car battery, further loss of battery
voltage is not a concern and printing continues.

If this option is not selected when using the Car Battery Adapter, you might need to press
FEED to take the printer out of Pause Mode and print each label.

Format ~JFp
This table identifies the parameters for this format:

Parameters Details

p = pause on low Accepted Values: Y (pause on low voltage) or N (do not pause)
voltage N is suggested when the printer is powered by the Car Battery
Adapter.
Default Value: Y

45541L-004 Rev. A ZPL II Programming Guide 9/15/06