Example ; Printer Language Switching ; 4.6.1. Explicit switching - Page 216

2001/10/02 

CHAPTER 5 PJL - 12 

Example 

<ESC>%-12345X@PJL<CR><LF> 

@PJL COMMENT -----------------------------<CR><LF> 

@PJL COMMENT --    PCL & PS JOB         --<CR><LF> 

@PJL COMMENT -----------------------------<CR><LF> 

@PJL <CR><LF> 

@PJL SET RET = ON <CR><LF> 

@PJL ENTER LANGUAGE = PCL <CR><LF> 

<ESC>E.......PCL JOB........<ESC>E 

<ESC>%-12345X@PJL<CR><LF> 

@PJL COMMENT Start of Postscript job <CR><LF> 

@PJL ENTER LANGUAGE = POSTSCRIPT <CR><LF> 

%!PS-ADOBE......Postscript JOB.....^D 

<ESC>%-12345X@PJL<CR><LF> 

@PJL COMMENT End of Postscript job <CR><LF> 

<ESC>%-12345X 

4.6. 

Printer Language Switching 

There are three methods of switching printer languages.   

4.6.1.  Explicit switching 

Explicit switching means the method which uses the PJL ENTER LANGUAGE command to switch to the 
desired emulation.  As the desired emulation is explicitly specified, this method is the most reliable. 

4.6.2.  Implicit switching 

If a default printer language is configured, and the PJL ENTER command is not described on a PJL line, the 
printer uses the default printer emulation.  This may not always select your desired emulation. 

4.6.3.  Context switching 

If the printer is set to 'automatic emulation selection' and the PJL ENTER command is not described in the PJL 
command, the printer investigates the incoming data and decides the required printer emulation.  The printer 
can select the printer language by this  switching, however, the PJL ENTER command is recommended to 
select the printer language accurately.