This printer driver is only used for the 4287A with the following serial numbers and for operating the HP DeskJet 5550 with the 4287A. This driver is not required if the driver has already been installed into the 4287A.
4287A JP1KJ00101 through 754
Step1. Prepare one floppy disk.
Step2. Insert the floppy disk into your computer's FDD.
Step3. Click on the "Printer driver" listed below.
Step4. Copy the file onto the disk.
Step5. Click on the "Printer Driver (for HP DeskJet 5550) Installation" listed below,
and follow the installation manual.