Toshiba B-EP Series Interface Specification page 570

8.10.27 JUSTIFICATION COMMAND
Function Justifies print data.
Format [ESC] an
Term ASCII: ESC a
Hex: 1Bh 61h
[Parameter]
n: Justifying print position
0: Left-justifying
1: Centering
2: Right-justifying
Default value n: 0
Explanation (1) This command will be executed only if it is received at the beginning of a line.
(2) If this command is received while the printer in page mode, the defined parameter
setting will be applied after switching to standard mode.
(3) Justification is performed within the specified print area.
(4) Justification also applies to a portion skipped by the Horizontal Tab Command
([HT]), Absolute Position Set Command ([ESC] $), or Relative Position Set
Command ([ESC] \).
CHAPTER 8 ESC/POS MODE (INTERFACE COMMANDS)
[ESC] a
0 ≤ n ≤ 2 (00h ≤ n ≤ 02h)
or
48 ≤ n ≤ 50 (30h ≤ n ≤ 32h)
8-43
B-EP Series