Canon CanoScan D646U User Manual page 62

chapter 5
Scanning an
Original
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Glossary
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Index
8.
Click the Preview button to pre-scan the image and display it in the
Preview Area.
When the amount of light of the lamp inside the scanner is
insufficient, the message "Now adjusting lamp..." may be
displayed. Wait as is, until the amount of light increases enough. If
you click the [Cancel] button in this dialog, the preview scan will be
executed with insufficient amount of light, and the previewed
image will not have the correct color balance. Click the [Cancel]
button only if you need to obtain the previewed image quickly
although without the correct color balance, before the amount of
light is sufficient.
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