Eprom Update Procedure - Xerox DocuPrint P8e Service Manual

5.7 EPROM Update Procedure

There are two components in the P8e printer that may be upgraded in the field, a Flash EPROM and an
EPROM. The Flash EPROM contains the OS Version and PCL5e Version. The Flash EPROM can be
upgraded without any physical work on the printer. The EPROM, on the other hand, must be upgraded
by physically changing a chip on a circuit board. The EPROM contains the Engine Version. The two work
together, you can not mix and match different version numbers.
The update procedure works in the following environments:
• MS-DOS version 6.22
• Windows 95, F8 Command Prompt Only boot
• Windows 95, MS-DOS Command Prompt
• Windows 95, Shutdown - Restart computer in MS-DOS mode
• Windows 3.1, Exit Windows and go to plain DOS version 6.22
NOTE: This procedure does not work with the Windows NT Version 4.0 MS-DOS Command Prompt.
The procedure requires two zipped files which contain the following files:
• fprt.exe
• xerox-lt.110 (if default paper size is letter)
or xerox-a4.220 (if default paper size is A4)
• rom.XXX (XXX represents the version level, i.e. 103 for version 1.03)
• boot.XXX (XXX represents the version level, i.e. 103 for version 1.03)
The computer's parallel port should be assigned as standard LPT1 (hex 378) before beginning the
procedure.
Procedure
1 Unzip the files to a temporary directory.
2 Make sure the printer is powered off and the parallel cable is IEEE-1284 compliant and
connected properly.
3 Hold the On/Off-line button and switch on the printer. Continue holding the button for 3-4 seconds
until the LEDs are scrolling in this fashion: error, paper, ready, error, paper, error. Release the On/
Off-Line button.
4 At the C> prompt, type: fprt boot.XXX lpt1 (XXX represents the version level, i.e. 103 for version
1.03).
5 When all the LEDs are blinking simultaneously, approximately 10 seconds, switch off the printer.
6 Hold the On/Off-line button and switch on the printer. Continue holding the button for 3-4 seconds
until the LEDs are scrolling in this fashion: error, paper, ready, error, paper, error. Release the On/
Off-Line button.
7 At the C> prompt, type: fprt rom.XXX lpt1 (XXX represents the version level, i.e. 103 for version
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5-27 General Procedures and Information