The utility files are written in the PostScript Level 2 programming language, and in a few cases you may have to edit the files to change the default parameters.
Task
Where to find details
About Control-D characters When using the printer connected to the parallel or serial port, a Control-D character is used to indicate the end of a file. Without a Control-D character in the file, the printer will continue waiting for more input. All PostScript utility files, except RESET.PS, must end with a Control-D character when sent from a workstation to the printer over a parallel or serial interface. In the file descriptions, Control-D is denoted as CTRL-D. For more information about PostScript programming, refer to the PostScript Language Reference Manual, second edition, Adobe Systems Incorporated. Removing Control-D characters from utility files
delctrld filename1.ps filename2.ps
where filename1.ps is the utility file you want to remove Control-D characters from, and filename2.ps is the revised file with a new name. (Both filename1.ps and filename2.ps can have the same name, but the original file will be overwritten by the revision.)
Send the utility file to the printer as you would any PostScript file.
addctrld filename1.ps filename2.ps
where filename1.ps is the utility file you want to add Control-D characters to, and filename2.ps is the revised file with a new name. (Both filename1.ps and filename2.ps can have the same name, but the original file will be overwritten by the revision.)