Problems With Scanning Time
❏
Computers with Hi-Speed external USB ports can scan faster than those with external USB ports. If you are using a
Hi-Speed external USB port with your product, make sure it meets the system requirements.
&
“System Requirements” on page 146
❏
Scanning at a high resolution takes a long time.
Problems With Scanned Images
Scan quality is unsatisfactory
Scan quality can be improved by changing the current settings or adjusting the scanned image.
&
“Image Adjustment Features” on page 45
An image on the back of your original appears in your scanned image
If your original is printed on thin paper, images on the back may be visible to the product and appear in your scanned
image. Try scanning the original with a piece of black paper placed on the back of it. Also make sure the Document
Type and Image Type settings are correct for your original.
Characters are distorted or blurred
❏
In Office Mode or Home Mode, select the
Text Enhancement
check box.
❏
Adjust the Threshold setting.
Home Mode:
Select
Black&White
as the Image Type setting, click the
Brightness
button, and then try adjusting the Threshold
setting.
Office Mode:
Select
Black&White
as the Image Type setting, and then try adjusting the Threshold setting.
Professional Mode:
Select
Black & White
as the Image Type setting and click the
+
(Windows) or
r
(Mac OS X) button next to
Image
Type
. Make the appropriate Image Option setting and then try adjusting the Threshold setting.
❏
Increase the resolution setting.
Characters are not recognized correctly when converted into editable text
(OCR)
Place the document so that it is straight on the scanner glass. If the document is skewed, it may not be recognized
correctly.
User’s Guide
Troubleshooting for Scanning
141
