Service manual

4-1 IP-421 PRINT CONTROLLER
Chapter 4 Appendices
■ Upgrading the Firmware
The IP-421 uses a compact flash ROM and you can go two ways in upgrading the firmware.You can
update the firmware via a parallel port or you can replace the compact flash ROM.
● Rewriting the Flash ROM
Normally, use this method.
Preparation
• Connect the IP-421 through a parallel cable to the computer that is used to upgrade the
firmware.
• Prepare the replacing firmware in the hard disk of the computer or in the form of CD-ROM.
• Turn on the copier’s main and auxiliary powers.
Procedure of rewriting the firmware
1. On the monitor screen of the computer, click the Start button. Click and select [MS-DOS
Prompt] from [Program].
The [MS-DOS prompt] appears.
2. Responding to the [MS-DOS prompt], designate the folder where the firmware is held.
Execute a COPY command and press the Enter key.
<Example> C:\copy filename.xxx lpt1 /b
3. On completion of file transfer from the computer, a message indicating the completion of
transfer appears on the copier LCD control panel. Press the OK button.
Now rewriting the firmware starts.
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