Parallel 
1. Download the printer system code into any working/temporary directory on your PC hard drive. 
2. Turn the printer on and wait until it is idle. 
3. Verify the connection of the parallel cable. 
4. On PC get to DOS prompt. 
5. Type 'copy /b sytem.ps lpt1 
6. Press 'Enter' key. 
7. Wait 30 minutes. 
8. The printer should reboot itself. Startup page should reflect new version of printer system code. 
    
Over the network(TCP/IP) 
1. Download the printer system code into any working/temporary directory on your PC hard drive. 
2. On PC get to DOS prompt. 
3. Type 'ftp xxx.xxx.xxx.xxx', where xxx.xxx.xxx.xxx is the IP address of your printer. 
4. You will be prompted for a username ... press 'Enter' key. 
5. You will be prompted for a password ... press 'Enter' key. 
6. Type in 'binary' and press 'Enter' key.  
7. Type in 'put system.ps' and press 'Enter' key. 
8. Wait 30 minutes. 
9. Printer should reboot itself. Startup page should reflect new version of printer system code.