You could have downloaded HP 600/800 Series Printer Driver 9.4 for Mac from our software library for free. This free Mac application was originally developed by Hewlett Packard.
From the developer:
HP DeskJet and DeskWriter Drivers contain and updater that will make your 600 and 800 series printer drivers MacOS 9 compatible.
You may want to check out more software for Mac, such as psc 1200 series, HP-15C or Print-Tool, which might be similar to HP 600/800 Series Printer Driver.
Device Assistants
Device Assistants