User Manual

TrobleShooting

Preface

Frequently Asked Question

Preface

This section describes some abnormal conditions that may appear in the scanner.

If your scanner fails to operate normally, first look through the symptoms listed

below and find the one that is closest to your scanner's symptom. Try to solve the

problem according to the recommended remedies listed under each symptom.

Frequently Asked Question

If your scanner fails to operate normally, first look through the symptoms listed

below and find the one that is closest to the symptom of your scanner. Then

follow the recommended remedies listed for that symptom.

No Symptom Remedy

Scanner does not react. Please follow these steps:

1. Make sure the USB cable is properly

connected.

2. Reselect the scanner source in the application.

3. Reinstall the scanner driver.

4. Reboot your computer.

Scanning speed is too slow.

• Lower the resolution (reduce the DPI)

You cannot find the "Power

Switch".

• The scanner does not have a power switch. It

is normal for the green LED to remain on.

The image on the screen is

too dark or too bright.

• Monitors of different brands have different

Gamma values which affect the brightness of

the image displayed in the Preview Window.

Please open the TWAIN source, and click the

Monitor Calibration icon on the Preferences

page to adjust the Gamma value of the image.

You should use the same procedure if this

problem occurs in image processing software.

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TrobleShooting Preface Frequently Asked Question Preface This section describes some abnormal conditions that may appear in the scanner. If your scanner fails to operate normally, first look through the symptoms listed below and find the one that is closest to your scanner's symptom. Try to solve the problem according to the recommended remedies listed under each symptom.
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05 The scanned image is too dark or too bright. • Remove the display screen filter if you have one. • Adjust the light source on your desk. • Adjusting the monitor’s Gamma value only changes the brightness of the monitor, not that of the scanned image itself. Please open the TWAIN source and adjust the brightness on the Main page. You can also click the Gamma icon in the Advance page to adjust the Gamma value. • Remove the display screen filter if you have one.