Issue
The scanner does not work when a scanner button on the main unit is pressed.
An error message appears when a scanner button is pressed.
Cause and Solution
The scanner button may be pressed for too short.
Press the scanner button for a few seconds.
The lock switch holding the scanning unit is not released completely.
Disconnect the interface cable from the scanner and release the lock switch completely.
Then reconnect the scanner.
Unlocking the Scanner
MP Navigator EX may not be installed on your computer.
1. Check if MP Navigator EX is installed on your computer.
2. If MP Navigator EX is not installed on your computer, install it.
Checking if MP Navigator EX is installed
If MP Navigator EX is installed on your computer, you can start it by following the procedure below.
Installing MP Navigator EX from the CD-ROM (Windows)
Read this page carefully before starting the installation.
Installing MP Navigator EX from the CD-ROM (Macintosh)
The scanner buttons may not be set up properly.
Specify the settings of the scanner buttons from your computer.
Setting up the Scanner Buttons to start MP Navigator EX (Windows)
In the following example, CanoScan LiDE90 will be set to start MP Navigator EX when a Scanner Button is pressed.
Scanner Button Settings (Mac OS X 10.3/10.2.8)
In order to start MP Navigator EX automatically when a scanner button is pressed, you need to set the scanner buttons to work with MP Navigator EX in [Image Capture] in [Applications] folder in Mac OS X.
If you configure the scanner buttons with MP Navigator EX, you can scan easily for your purposes.