Problem The scanning glass or rollers inside the scanner are dirty.
Solution Clean the scanning glass and rollers. (See “Regular Maintenance,” on p. 102.)
If lines still appear on the image even after cleaning the scanning glass and rollers, the scanning glass inside the scanner may be scratched. Contact your local authorized Canon dealer or service representative.
Symptoms The scanned image is abnormal for certain documents.Problem Functions such as
Solution Turn off functions such as
Problem A function not supported by the application was used.
Solution Some applications do not support functions such as
Symptoms
Problem The auto color detection setting is not set appropriately.
Solution Adjust [Color Sensitivity] and [Color Pixel Ratio] on the [Auto Color Detection Settings] dialog box. Decrease those to force the scanner to recognize the document as
130Chapter 4