62
Troubleshooting
Symptom
Possible Cause
Remedy
The double feed detection
sensor is not operating.
There is dust from the paper on the
double feed detection sensor.
Please clean the double feed detection
sensor with the included blower.
(See
page 48
.)
The double feed detector sensitivity
setting does not match the scanning
document.
Change the double feed detector
sensitivity setting. (See
page 25
.)
Black dots or white
patches occur when
scanning with flatbed.
The document glass and cover sheet are
dirty.
Clean the document glass and cover
sheet. (See
page 51
.)