4.3.6 ESC SP n Set line character spacing
4.3.7 ESC L nL nH Set left margin
Bit-image printing commands
4.4.1 ESC * Select bit-image mode
4.4.2 FS P n Print downloaded bit-image
Bar code printing commands
4.5.1 GS K n [d] NULL Print bar code
4.5.2 GS H n Select/cancel printing HRI characters
4.5.3 GS h n Set bar code height
4.5.4 GS w n Set bar code horizontal size
User-defined character commands
4.6.1 ESC % n Select/cancel user-defined character
set
4.6.2 ESC & Define user-defined character set
Chinese character setting command
4.7.1 FS I n Set Chinese character rotation
printing
Setting Commands
ESC “ n Set black mark
4.1 Basic Control Commands
4.1.1 ESC @
[Name]: Initialize printer
[Format]: ASCII ESC @
Hexadecimal 1B 40
Decimal 27 64
[Description]: Clear the data in the print buffer; Restore the default of each
print command.
[Notice]: If not restore to ex-factory setting, the default setting won’t be
changed.
4.1.2 NULL
[Name]: Awaken printer
[Format]: ASCII NULL
Hexadecimal 00
Decimal 0
[Description]: Awaken printer.