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Quick Reference A-3
Font Modification
Syntax Printer Action
ESC DAO
Selects characters from the ASCII character
set.
ESC DX <charfont>
Selects extended characters from the PC Line-
Draw or International character sets.
ESC D <font> <code>
<matrix>
Loads a character at a particular position.
Configuring the Printer
Syntax Printer Action
ESC P^
Prints the battery voltage.
ESC P <value>
Sets the power mode (when <value> is hex).
Sets the print contrast (when <value> is
decimal).
ESC Mnn0 CR
Sets the power down timer to nn seconds
(000 = disable timer).
ESC C
Resets auto power down to 20 seconds.
ESC P!
Requests the printer’s battery voltage.
ESC P(
Queries the printer firmware version.
ESC P)
Queries the printer hardware model.
CTRL B
Print status request for buffer and magnetic
card reader.
CTRL V
Battery status request for buffer, battery
voltage, and magnetic card reader.
Using the Magnetic Card Reader
Syntax Printer Action
ESC M' #timer#
<tracks> CR
Prepares the reader for a card swipe.