Note:To modify the DEVPARAM.PS file, you should be familiar with the PostScript setdevparams command. You should also know how to use PostScript dictionaries and key value pairs.

The following example sets these parameters:

• Flow control to Xon/Xoff
• Parity to none
• Data bits to 8
• Stop bits to 2
• Baud rate to 9600 In this example, the changes are persistent across jobs and across printer power cycles; they remain in effect until you change them again.

  (%Serial_NV%) 6 dict begin
  
  	/Password      	() def
  
  	/FlowControl    /XonXoff def
  
  	/Parity      	/None def
  
  	/DataBits	8 def
  
  	/StopBits	2 def
  
  	/Baud     9600 def
  
  currentdict end setdevparams
  
  

1. Copy the utility files from the Phaser 300X printer's CD-ROM.
2. View the DEVPARAM.PS file in a text editor and substitute the values you want to use for the current values. The possible values for each parameter are listed in the following table (see "Parameter values"); the values are case-sensitive and must be entered exactly as shown in the table.
3. Save the file.
4. Configure the printer's port to receive PostScript; see "Printing PostScript files" for instructions.
5. Use one of the following methods to send the file to the printer:
   • PC users: Use the DOS COPY command to send the file to the printer. (Windows 3.1 users can also use the Copy command in the File Manager.)
   • Workstation users: Send the file to the printer as you would any PostScript file.

     Parameter key	Allowed values	Type
     FlowControl	XonXoff (software) Dtr (hardware)	string
     Parity	Even Odd None Space	string
     DataBits	7 8	integer
     StopBits	1 2	integer
     Baud	300 600 1200 2400 4800 9600 19200 38400	integer
     Enabled	true false	boolean
     CheckParity	true false	boolean
     On	true false	boolean
     Interpreter	PostScript	string
     Protocol	Normal Raw Binary	string