9.3. OperationThis section describes each operation (or status indication), according to the function item list shown in Sec. 9.2.9.3.1. Scanner StatusThis function indicates scanner status, updating it every few seconds. The status messages and its contents are as follows.Classified Code Status Message Contents— Scanner has no error. No errorU10 No Paper!Please set the paper.No paper errorU11, U12, U13, U16 Jam occurred!Please open the door and remove the paper.U11: Paper Feed Jam, U12: Jam1(around conveyor)U13: Jam 2 (around conveyor), U16: Jam (around exit roller)U18 Document remains in scanner!Please open the door and remove the paper.Document remains in scanner, or dust is attached around asensor.U23 Double Feed occurred!Please open the door and remove the paper.Double feed error.U30 Scanner Door is open!Please close the door.Door is open.Fxx System error occurred!Please consult with a service representative.Service level error occurred.— *** Warning ***The rollers need to be cleaned.Please clean the rollers.Warning for cleaning rollers.— *** Warning ***The rollers need to be replaced.Please replace the rollers.Warning for replacing rollers.— Scanner is not connected! Scanner is not connected to PC properly.Fig. 9.3.1 Scanner Status9.3.2. Error CodeClassified and Error codes are as follows. And troubleshooting for this error message and codes is shown in Sec. 10.2.Contents Contents ContentsU1- Document H1- F1-U2- Document H2- F2- HardwareU3- Door H3- F3-U4- H4- F4-U5- H5- F5- SensorU6- H6- F6- ScanningU7- H7- F7-U8- H8- F8-U9- H9- F9-Table 9.3.2 Classified Code OutlineST1 Error contents0× Communication error1× Paper jam error2× Door open error3× Mechanical function error4× Paper sensor error5× Scanning error6× —7× —8× Hardware error9× Hardware errorA× —B× —C× —D× —E× —F× —Table 9.3.3 Error Code Outline62KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series