Quality of scanned text or lines is unsatisfactory, Appendix, Glossary introduction index contents top – Fujitsu Ricoh Fujitsu fi-7700 Document Scanner User Manual
Page 143

Chapter 7 Troubleshooting
143
Quality of scanned text or lines is unsatisfactory.
*1: When you scan in grayscale or in color mode, the scanned image may not become sharp and clear.
ADF:
Are the glass and rollers inside the ADF clean?
Flatbed [fi-7700/fi-7700S]:
Are the document pad and the document bed clean?
No
Clean the dirty parts.
For details, refer to
"Chapter 5 Daily Care" (page 104)
.
Yes
Is the resolution appropriate?
No
Specify a higher resolution in the scanner driver.
Yes
Did you configure the settings in the scanner driver to scan
in grayscale or color mode?
Yes
Configure the settings in the scanner driver to scan in black & white mode. (*1)
No
Is there any foreign matter (such as dust or paper dust) on
the document?
Yes
Remove any foreign matter off the document.
Foreign matter may get on the glass that is inside the ADF or the document bed of
the flatbed [fi-7700/fi-7700S], and cause the image to appear dirty.
No
If the problem persists, check the items in
"7.4 Before You Contact the Scanner
first, then contact the distributor/dealer where you
purchased this product.