Canon CanoScan D660U ScanGear CS-U 5.8 User's Guide - Page 84

Troubleshooting Checklist

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chapter 7 Troubleshooting Top Page Glossary Contents Index Troubleshooting Checklist The scanner diagnostics test fails. Problem: Cause: Solution: The Scanner Diagnostics test, started with the Test Scanner button on the Scanner sheet, returns a Test Failed message. The scanning unit may not be in its home position. Close the ScanGear CS-U window if it is open. Try turning the scanner off and back on again by unplugging and plugging in the USB cable. Then restart your computer. Colors not what you expect. Problem: Cause1: Solution: Cause2: Solution: The colors in the preview image appear different from the colors in the original image. The scanned colors need to be adjusted. Make sure the Auto Tone button is selected. If further adjustments are necessary, use the Tone sheet buttons. The calibration slot on the film guide is obstructed. Clear the item blocking the calibration slot. The preview image of a photograph appears blurred but the scanned image of the same photograph appears sharp. Problem: Cause: Solution: When zooming in on a photograph in the Preview area, the enlarged image appears blurred. The preview scan uses a lower resolution than the final scan. If you zoom in on a preview image so it is enlarged, the image will not maintain its resolution in the same way as the final scanned image. Select a magnified area and preview the image again. The scan should display a sharper image. 84

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84
chapter 7
Troubleshooting
Top
Page
Glossary
Contents
Index
Troubleshooting Checklist
The scanner diagnostics test fails.
Problem:
The Scanner Diagnostics test, started with the Test Scanner
button on the Scanner sheet, returns a Test Failed
message.
Cause:
The scanning unit may not be in its home position.
Solution:
Close the ScanGear CS-U window if it is open. Try turning
the scanner off and back on again by unplugging and
plugging in the USB cable. Then restart your computer.
Colors not what you expect.
Problem:
The colors in the preview image appear different from the
colors in the original image.
Cause1:
The scanned colors need to be adjusted.
Solution:
Make sure the Auto Tone button is selected. If further
adjustments are necessary, use the Tone sheet buttons.
Cause2:
The calibration slot on the film guide is obstructed.
Solution:
Clear the item blocking the calibration slot.
The preview image of a photograph appears blurred but the
scanned image of the same photograph appears sharp.
Problem:
When zooming in on a photograph in the Preview area,
the enlarged image appears blurred.
Cause:
The preview scan uses a lower resolution than the final
scan. If you zoom in on a preview image so it is enlarged,
the image will not maintain its resolution in the same way
as the final scanned image.
Solution:
Select a magnified area and preview the image again. The
scan should display a sharper image.