CHAPTER 6 EPSON - 4 
Esc H  Cancel double-strike mode  18 
Esc W n  Select / Cancel double-width printing  18 
SO  Select single-line double-width printing (I)  18 
Esc SO  Select single-line double-width printing (II)  18 
DC4  Cancel single-line double-width printing  18 
Esc 4  Select italic mode  19 
Esc 5  Cancel italic mode  19 
Esc S n  Select superscript / subscript mode  19 
Esc T  Cancel superscript / subscript mode  19 
Esc w n  Select / cancel double-height printing  19 
Esc - n   Select / cancel underline mode  19 
Esc ! n  Select printing mode  20 
Esc 6  Select expansion of printable code area  20 
Esc 7  Cancel expansion of printable code area  20 
Esc l n  Expand printable code area  20 
Esc R n  Select international character set  21 
Esc t n  Select italic / graphic character table  21 
Esc & NUL n1 n2 ( n3 <character definition data> )  22 
  Define characters    
Esc % n NUL  Select standard / downloaded characters  22 
Esc : 0 0 0  Copy ROM character to RAM  23 
Esc * m n1 n2 < image data >  23 
  Select image mode   
Esc ? n m  Reassign image mode  23 
Esc ^ a n1 n2  Print 9 bit image  24 
Esc K n1 n2 <image data>  25 
  Print single-density image   
Esc L n1 n2 <image data>  25 
  Print double-density image   
Esc Y n1 n2 <image data>  26 
  Print double-speed double-density image   
Esc Z n1 n2 <image data>  26 
 Print quadruple-density