Samsung SLM3875FW Error Codes List page 12 All About this machine Error Code: All codes A1-1110 C1-1110 C1-1120 C1-1144 C1-1150 C1-1160 C1-1170 C1-1310 C1-1411 C1-1512 C1-1710 C1-1711 C1-1712 C2-1110 C2-1120 C2-1150 C2-1160 C2-1170 C2-1411 C2-1512 C2-1710 C2-1711 C2-1712 C3-1110 C3-1120 C3-1144 C3-1410 C3-1510 C9-1112 C9-1115 C9-1122 C9-1125 H1-1210 H1-1220 H1-1230 H1-1240 H1-1252 H1-1254 M1-1110 M1-1610 M1-5112 M1-5113 M1-5120 M1-5612 M1-5712 M2-1110 M2-2210 M3-1110 M3-2130 S1-2411 S1-4210 S2-4120 S3-3122 S4-2111 S4-2112 S6-3123 S6-3128 U1-2315 U1-2320 U1-2330 U1-2334 U1-2340 U2-1112 U2-1113 U3-3113, U3-3313, U3-3314 U3-3413, U3-3513, U3-3514 U3-4110 page 1 2 3 4 5 6 7 8 9 10 11 12 Code: U3-4110 Display: Door of scanner is open. Description: ADF top cover is opened. Remedy: 1) Close the ADF top cover.