2011/03/02 
Revision: 1            Page: 55 
 
 
 
5.1.29 Turn unidirectional mode on/off ESC U n 
 
ESC U n  Ver 1.00 
[Name]  Turn unidirectional mode on/off  [Setting] 
[Format]  1BH, 55H, n 
[Range of Definition]  n=00H, 01H, 02H, 30H, 31H, 32H 
[Function]  1)  The printing direction is selected according to the value of n in the following manner: 
n=00H or 30H:  selects bi-directional printing 
n=01H or 31H:  selects unidirectional printing (0 to 80 column) 
n=02H or 32H:  selects automatic printing direction control 
n=03H or 33H:  selects unidirectional printing (80 to 0 column) 
  2)  If n has any value other than the above, this command is ignored. 
[Initial State]  Bi-directional printing   
[Related Commands] 
  [Setting] Commands whose settings are affected by this command. 
    ESC @ initialized values may be cancelled by this command. 
  [Setting] Commands that change the effects of this command. 
    ESC @ command will return the printer to its Initial State values. 
  [Operation] Commands whose functionality is affected by this command. 
    None 
  [Operation] Commands that change the effects of this command. 
    None