Print single-density image ; Print double-density image - Page 316

CHAPTER 6 EPSON - 26 

Print single-density image 

EscKn

1

n

2

<image data>    (27)(75)n1n2.... 

<1Bh><4Bh>n1n2.... 



This command enables you to define and print a single line raster bit image on a single text line.   



n

1

 and 

n

2

 define the number of bytes that comprise the image. 



The image consists of 256*

n

2

+

n

1

 bytes of data, each byte representing a single vertical column of 4/30". 



Each byte represents a vertical column of eight dots, the most significant bit representing the dot at the top.  
Simply set a bit to 1 if you want a dot to appear in that position, and to 0 if you want white space to appear. 



Images are printed from left to right. 



Images are printed at a horizontal resolution of 60 dots per inch and at an approximate vertical resolution of 
72 dots per inch. 



You can only use this command in portrait orientation. 

10 WIDTH "LPT1:", 255 
20 LPRINT "*** ESC K n1 n2 ***" 
30 FOR I=1 TO 5 
40 '* STANDARD DENSITY BIT IMAGE MODE * 
50 LPRINT CHR$(27);"K";CHR$(160);CHR$(0); 
60 FOR J=1 TO 8 
70 FOR K=1 TO 20 
80 N=2^J-1 
90 LPRINT CHR$(N); 
100 NEXT K 
110 NEXT J 
120 LPRINT  
130 NEXT I:END 

*** ESC K n1 n2 *** 

Sample 11 

Print double-density image 

EscLn

1

n

2

<image data>   (27)(76)n1n2.... 

<1Bh><4Ch>n1n2.... 



This command enables you to define and print a single line raster bit image on a single text line.   



n

1

 and 

n

2

 define the number of bytes that comprise the image. 



The image consists of 256*

n

2

+

n

1

 bytes of data, each byte representing a single vertical column of 4/30". 



Each byte represents a vertical column of eight dots, the most significant bit representing the dot at the top.  
Simply set a bit to 1 if you want a dot to appear in that position, and to 0 if you want white space to appear. 



Images are printed from left to right. 



Images are printed at an approximate horizontal resolution of 120 dots per inch and at an approximate 
vertical resolution of 72 dots per inch. 



You can only use this command in portrait orientation. 

10 WIDTH "LPT1:",255 
20 LPRINT "*** ESC L n1 n2 *** 
30 FOR I=1 TO 5 
40 '* DOUBLE-DENSITY BIT IMAGE MODE * 
50 LPRINT CHR$(27);"L";CHR$(160);CHR$(0); 
60 FOR J=1 TO 8 
70 FOR K=1 TO 20 
80 N=2^J-1 
90 LPRINT CHR$(N); 
100 NEXT K 
110 NEXT J 
120 LPRINT  
130 NEXT I:END 

*** ESC L n1 n2 *** 

Sample 12