Modifying Printer Attributes

For example, assume that you created a new file based on the existing 4201-3 printer. The customized file for the 4201-3 printer contains the following template that the printer formatter uses to initialize the printer:

%I[ez,em,eA,cv,eC,eO,cp,cc, . . .

The formatter fills in the string as directed by this template and sends the resulting sequence of commands to the 4201-3 printer. Specifically, this generates a string of escape sequences that initialize the printer and set such parameters as vertical and horizontal spacing and page length. You would construct a similar command string to properly initialize the new printer and put it into 4201-emulation mode. Although many of the escape sequences might be the same, at least one will be different: the escape sequence that is the command to put the printer into the specific printer-emulation mode. Assume that you added an ep attribute that specifies the string to initialize the printer to 4201-3 emulation mode, as follows:

\033\012\013

The Printer Initialization field will then be:

%I[ep,ez,em,eA,cv,eC,eO,cp,cc, . . .