Product Support Bulletin(s)
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... 2) Upgrading your scanner and using a Perfection 4490 driver uninstaller to delete a Perfection 3490 driver will cause your scanner model, the application will force quit during start -up . For example, using the Epson Scan driver from the new scanner to delete the driver from the older scanner, and then installing the new driver Operating Systems Effected: Mac OS 10.4 to 10.4.9 Affected Epson Scan Driver Versions...
... 2) Upgrading your scanner and using a Perfection 4490 driver uninstaller to delete a Perfection 3490 driver will cause your scanner model, the application will force quit during start -up . For example, using the Epson Scan driver from the new scanner to delete the driver from the older scanner, and then installing the new driver Operating Systems Effected: Mac OS 10.4 to 10.4.9 Affected Epson Scan Driver Versions...