Hewlett-Packard has published this statement regarding the update:
DeskJet and DeskWriter Driver Patch Application for v.9.4.0 and v.9.4.1
You should apply this driver updater if you are using Mac OS 9 with one of the printers listed below. Do not apply if your current operating system is not Mac OS 9. This program is designed to perform updates to versions 9.4.0 and 9.4.1 of the DeskJet printer driver for Mac OS.
When it is run, this program will perform the following driver updates: 2. AppleTalk (AT) drivers for DeskWriter 600, 660, 680 and 690 series; v.9.4.1 updated to v.9.4.3
3. Serial drivers for DeskJet 850, 855 and 870 series; v.9.4.0 updated to v.9.4.2
4. AppleTalk (AT) drivers for DeskJet 850, 855 and 870 series; v.9.4.0 updated to v.9.4.2
1. Serial drivers for DeskWriter 600, 660, 680 and 690 series; v.9.4.1 updated to v.9.4.3.
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