
Printed Paper Curls or Has Ink Blots
| Cause | Action | 
| Paper is too thin. | When printing data with high color saturation such as photographs or images in | 
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 | deep color, we recommend using Photo Paper Pro or other Canon specialty | 
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 | paper. See “Using Specialty Media” on page 8. | 
Printed Surface Is Scratched/Paper Is Smudged
| Cause | Action | 
Printing on inappropriate type of paper. z Check to see if the paper you are printing on is not too thick or curled.
| 
 | See “Media Types You Cannot Use” on page 10 to make sure that the paper | 
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 | you are using is suitable. | 
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 | If the paper is curled, see “Paper is curled.” on page 49 to correct paper curl. | 
| 
 | z When performing Borderless Printing, print quality may be reduced at the top | 
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 | and bottom edges of the paper. Make sure that the paper you are using is | 
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 | suitable for Borderless Printing. | 
| 
 | For details, refer to “Printing Area” in the User’s Guide  | 
| Inappropriate Paper Thickness Lever | Adjust the position of the Paper Thickness Lever according to the type of paper | 
| setting. | you are printing on. | 
| 
 | See “Paper Handling” on page 9. | 
| 
 | Depending on the printing content, the printing surface may become scratched | 
| 
 | or the corners or edges of the paper may become smudged even for the types | 
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 | of paper to set the lever to the left. In this case, set the Paper Thickness Lever | 
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 | to the right. | 
| 
 | * Reset the Paper Thickness Lever to the left when you finish printing. If the | 
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 | lever is not set back to the left, the inside of the printer is more likely to get dirty | 
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 | due to the wider clearance between the print head and the loaded paper. It may | 
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 | also reduce print quality. | 
| Printing beyond the recommended | If you are printing beyond the recommended printing area of your printing paper, | 
| printing area. | the lower edge of the paper may become stained with ink. | 
| 
 | Resize your original document in your application software. | 
| 
 | For details on recommended printing area, refer to “Printing Area” in the User’s | 
| 
 | Guide  | 
| Paper Feed Roller is dirty. | Cleaning the Paper Feed Roller will wear the roller, so perform this procedure | 
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 | only when necessary. | 
| 
 | For details on cleaning, see “Cleaning the Paper Feed Roller (Roller Cleaning)” | 
| 
 | |
| Inside of the printer is dirty. | When performing duplex printing, if the specified paper size does not match the | 
| 
 | actual size of paper loaded in the Rear Tray, the inside will become stained with | 
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 | ink, causing printed paper to become smudged. | 
| 
 | Perform the Bottom Plate Cleaning to clean the inside of the printer. | 
| 
 | For details, see “Cleaning the Inside of the Printer” on page 39. | 
| 
 | Note | 
| 
 | To prevent the inside of the printer from stains, set the paper size correctly. | 
| Printing graphics with the intensity | Especially if you are using plain paper to print images with high intensity, the | 
| setting set too high. | paper may absorb too much ink and become wavy, causing paper abrasion. | 
| 
 | Refer to “Print Results Not Satisfactory” in the User’s Guide  | 
48Troubleshooting