Samsung SF-76x series Service Manual page 85

► Error Code
U3–3313
U3–3314
► Error message
Document jam. Remove jam.
Document jam. Remove jam.
► Symptom
A document jam was detected in the ADF unit.
► Troubleshooting method
1) Remove the jammed paper from ADF unit.
2) If the error persists, turn the machine off then on.
3) If the document jam occurs continually, check that the ADF roller is contaminated or worn out. Clean or replace it.
4) If the ADF roller is OK, check that the ADF motor is working normally.
5) If the problem persists, replace the ADF unit.
► Error Code
U3–4110
► Error message
Scanner Door Open
► Symptom
ADF unit is opened.
► Troubleshooting method
1) Close the ADF unit.
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4. Alignment and Troubleshooting
4-26