Pressing The Button On The Scanner Does Not Start Scanning; Scanned Image By Using The Button Is Missing; Upgrading From Windows 98 To Windows 2000 - Epson Perfection 640U Reference Manual

❏ Change the Image Type setting. See "Image Types" on page
3-6 to make sure your settings are correct.
❏ Printed colors do not exactly match the colors on your
monitor, since printers and monitors use different color
systems: monitors use RGB (red, green, and blue), while
printers typically use CMYK (cyan, magenta, yellow, and
black).
Pressing the button on the scanner does not start
scanning.
❏ Make sure EPSON SMART PANEL for Scanner is installed
and the EPSON SMART PANEL's Launch Application path
is set correctly.
❏ For Windows users:
Click the Events tab in your scanner's Properties dialog box
and make sure the Disable device events check box is clear.
Also, make sure the desired button is selected as the Scanner
events, and at least one scanner event recognizable
application in the Send to this application list is selected.

Scanned image by using the button is missing.

Make sure desired application is assigned to the button.

Upgrading from Windows 98 to Windows 2000

If EPSON TWAIN is already installed, you need to uninstall it,
upgrade the system to Windows 2000, and then reinstall it, as
follows:
1. Uninstall EPSON TWAIN. See "Uninstalling EPSON
TWAIN" on page 5-19.
5-18
Maintenance and Troubleshooting