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Checking the Battery Voltage
The following commands/control characters involve the printer's battery.
Command Description
ESC-'P'-'^' Prints the battery voltage.
ESC-'P'-'!' Requests the battery voltage from the printer.
16 hex (Ctrl-V)
NiCD and NiMH batteries only. Requests the
print buffer and battery statuses. The printer
responds with:
ESC-'B'-(pbchars)-CR-LF-ESC-'V'-#volts#-CR-
LF
(pbchars) The number of characters
currently in the print buffer.
#volts# Four ASCII characters. The first
three are the battery voltage
(form x.x).
The fourth character categorizes
the voltage listed to give it a
reference. Values are 1-4, where
1 is high and 4 is low.
We recommend designing your
applications so the user can check
the printer's battery voltage.