HP 400 - Manual (Page 61)

4-4 Printer Drivers
Minimum Configuration for Hewlett-Packard’s Printer Drivers
Hewlett-Packard’s printer drivers require the following minimum system configuration:
CPU 80386 processor or greater
Memory 2 MB of RAM for monochrome printing
4 MB of RAM for color imaging
Free Disk Space 10 MB free of disk space (for installation of printer driver)
Software
Compatibility Microsoft Windows version 3.1 and above
DOS 3.3 and above
Note Although the HP DeskJet 400 printer can print with the above minimum configuration, the printing
performance may be unsatisfactory to users. Increasing the computer's processing power or RAM
may improve printing performance to a satisfactory level.