Description: A document jam was detected in the ADF unit.
Remedy: 1) Remove the jammed paper from ADF unit. (Refer to 4.1.3.1) 2) If the error persists, turn the machine off then on. 3) If the document jam occurs continually, open the ADF cover-top. Check if the ADF pick up roller is contaminated or worn out. Clean or replace it. 4) If the pick up roller is OK, check the followings. a) Check if the ADF motor is working normally. b) Check if the connector on the ADF joint board is connected correctly. 5) If the problem persists, replace the ADF unit.
Code: U3-4110
Display: Door of scanner is open.
Description: ADF or ADF top cover is opened.
Remedy: 1) Close the ADF unit. 2) Close the ADF top cover.