Error Code "U4:40" Is Displayed on the Touch Screen While Scanning
Check the following points
● Is the ADF closed firmly? (page 197)
If the problem persists, check the items in Before You Contact the Scanner Service Provider (page 213)
first, then contact the distributor/dealer where you purchased this product. Or, make an inquiry by
referring to the contact information at the Contact for Inquiries section in Safety Precautions bundled with
this product.
● Is the ADF closed firmly?
Solution
Close the ADF firmly.
For details, refer to How to Close the ADF (page 63).
Troubleshooting
197