B Downloading Firmware

Loading Flash Memory

Flash memory is contained in in-line memory modules (SIMMs) located on the CMX controller board. (Shown in the Maintenance Manual.) Printer emulation and operating system software are loaded into flash memory at the factory, but you will install software in the following situations:

You buy the IGP/PGL or Code V graphics option after the printer is installed

You need to upgrade printer software

You need different emulation software

You have replaced the controller board

Emulation and operating system software are stored as a compressed file on a 3.5 inch, double-density floppy diskette. The file is “executable”. You will expand it and copy it into printer flash memory with a single command.

1.Make a printout of all saved configurations. (Refer to “Print Config.” on page 72.) Installing new software erases all saved configurations. You will use the printouts to restore printer configuration.

2.Set the printer power switch to O (off).

3.Unplug the AC power cord from the printer.

4.If the printer's parallel data cable is connected to the parallel port of

an IBM or IBM-compatible computer using the PC-DOS™, MS- DOS®, Windows®3.x or Windows 95 operating system, skip to step 8. If not, go to step 5.

5.Disconnect all data input cables from the printer interface.

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Compaq 5532, 5531, 5525B user manual Downloading Firmware