Canon imageFORMULA CR-190i imageFORMULA CR-135i / CR-190i Operation and Mainte - Page 12

7 Close the Front Maintenance Cover in the order shown in the diagram below. Feeding Trouble If the document is not fed properly or the detection functions do not work properly, remedy the problem by checking the following conditions. Condition Cause and Remedy Condition Cause and Remedy A paper jam has occurred. • Check to make sure that the size and thickness of the document are within the supported range of the scanner, and if the quality of the paper is appropriate. For cautions on handling documents, see "Documents" on p. 6. • Documents with rough surfaces may cause a paper feed error to occur. Scan one sheet at a time in the separation OFF mode. (See "Separation OFF Mode," on p. 37 in Instructions.) • Dirty or worn rollers inside the scanner may cause a paper jam. Clean the rollers if they are dirty. (See "Cleaning the Scanning Glass and Rollers" on p. 16.) Worn rollers must be replaced. Some rollers are replaceable. (See "Replacing the Rollers" on p. 26.) If the rollers are not replaceable, contact your local authorized Canon dealer or service representative to have the scanner serviced. • The Separation Roller gap is too wide. Adjust the Separation Roller gap. (See "Adjusting the Separation Roller Gap" on p. 29.) A double feed error often occurs. A double feed error may occur when documents with different thicknesses are mixed. If you are using the CR-190i scanner, you can align the documents using the jogger. If the above-mentioned method is not effective or you are using the CR-135i scanner, adjust the Separation Roller gap. (See "Adjusting the Separation Roller Gap" on p. 29.) 12