Model: HP D640, Version 18.104.22.1681
Operating System: Windows NT 4.0 (Note: might work with other versions of this os.)
The HP Custom PCL Driver
The HP Custom PCL Driver is designed exclusively for the HP D640 Printer. The driver is compatible with PCs running Windows NT 4.0. The printer must have engine firmware E01V03L39 and function code E02V02L03 (or greater) installed.
Installation Instructions: Create installation diskette by saving disk image (.exe file) to your PC, double-clicking on the disk image icon, inserting floppy, and pressing ENTER. Use the Windows "add printer" wizard to install the driver; when the Manufacturer and Model window appears, click "Have Disk". For more information please see the Installation Notes file for installation and configuration instructions. For a complete listing of drivers please see the HP D640 Driver Matrix