Canon printer PIXMA MG7720 User Manual

Images Incomplete or Missing (Windows)
Check1 Select setting not to compress printing data.
If you select the setting not to compress the printing data with an application software you are using, the printing result may be improved.
Click  Print Options  on Page Setup  sheet of the printer driver. Select  Do not allow application software to
compress print data  check box and click OK.
* Clear the check box once printing is complete.
Check2  Is print data extremely large?
Click  Print Options  on Page...

Ink Blots / Paper Curl
 Ink Blots
 Paper Curl
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2 If intensity is set high, reduce intensity setting and try printing again.
If you are printing with a high intensity setting on plain paper, the paper may absorb too much ink and become
wavy, causing paper abrasion.

Paper Is Smudged / Printed Surface Is Scratched
 Paper Is Smudged
The Edges of Paper Are SmudgedPrinted Surface Is Smudged
 Printed Surface Is Scratched
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2 Check paper type.

1.
Roll up paper in opposite direction to paper curl as shown below.
2.
Check that paper is now flat.
We recommend printing curl-corrected paper one sheet at a time.
Note

In the Canon IJ Printer Utility, select Custom Settings in the pop-up menu, select  Prevent paper
abrasion  check box, and then click  Apply.
To open the Canon IJ Printer Utility, see Opening the Canon IJ Printer Utility.
Check5  If intensity is set high, reduce intensity setting and try printing again.
If you are printing with a high intensity setting on plain paper, the paper may absorb too much ink and become
wavy, causing paper abrasion.

Back of Paper Is Smudged
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2  Is the paper feed roller dirty?
Clean the paper feed roller.
Cleaning the Paper Feed Roller
Note

Vertical Line Next to Image
Check Is loaded paper size correct?
If the loaded paper is larger than the size you specified, a vertical line may appear in the margin.
Set the paper size to match the loaded paper.
Print Results Are Unsatisfactory
Note

Uneven or Streaked Colors
 Uneven Colors
 Streaked Colors
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2 Print nozzle check pattern and perform any necessary maintenance operations
such as print head cleaning.
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.For details on printing the nozzle check pattern, print head cleaning, and print head deep cleaning, see 
If Printing
Is Faint or Uneven .

If the problem is not resolved after performing print head deep cleaning, turn off the machine and performprint head deep cleaning again 24 hours later.