Chapter 5 Troubleshooting
Symptoms | Text or images on the rear side of your document appear in the scanned |
| image. |
Problem | The [Brightness] setting is too low, or the paper is too thin. |
Solution | Set a higher [Brightness] setting. If the paper is too thin, make a copy of the |
| documents and then scan the copy. Alternatively, enable the [Prevent bleed |
| through/remove background] setting. |
Symptoms | |
Problem | “Scanning Side” is set to [Simplex]. |
Solution | Set “Scanning Side” to [Duplex]. |
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Symptoms | A black margin appears around the scanned document. |
Problem | A document smaller than the preset paper size has been scanned. Or, the loaded |
| document has shifted out of position. |
Solution | Set [Page size] to |
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Symptoms | The scanned image is skewed. |
Problem | The document has been fed at an angle. (skew) |
Solution | Use the document guide adapter to prevent document skew, and set [Deskew] to |
| on. |
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Symptoms | Lines, smudges, or dirt appear on the scanned image. |
Problem | The scanning glass or rollers inside the scanner are dirty. |
Solution | |
| If lines still appear on the image even after cleaning the scanning glass and rollers, |
| the scanning glass inside the scanner may be scratched. Contact your local |
| authorized Canon dealer or service representative. |
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Symptoms | The scanned image is abnormal for certain documents. |
Problem | Functions such as |
| when scanning documents containing text or photos up to their edges. (The |
| scanner cannot accurately process the edges of documents.) |
Solution | Disable functions such as |
| scanning documents containing text or photos up to their edges. |
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Symptoms | The scanned image is abnormal in some applications. |
Problem | A function not supported by the application was used. |
Solution | Some applications do not support functions such as |
| size. Scanning documents with an application such as this will result in an |
| abnormal scanned image. Try scanning with |
| “off.” |
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