Canon printer PIXMA MG7720 User Manual

To remove the jammed paper, see List of Support Code for Error (Paper Jams).
Note

Print Results Are Unsatisfactory
If the print results are unsatisfactory due to white streaks, misaligned lines, or uneven colors, check thepaper and print quality settings first.
Check1  Do page size and media type settings match size and type of loaded paper?
If these settings do not match, it is not possible to obtain the proper result. If you are printing a photograph or an illustration, an incorrect paper type setting may reduce the quality of the
printout color.
Also, if you print with an incorrect...

See also the sections below:
Cannot Complete Printing
Part of Page Is Not Printed (Windows)
Paper Is Blank/Printing Is Blurry/Colors Are Wrong/White Streaks Appear
Lines Are Misaligned
Lines Incomplete or Missing (Windows)
Images Incomplete or Missing (Windows)
Ink Blots / Paper Curl
Paper Is Smudged / Printed Surface Is Scratched
Back of Paper Is Smudged
Vertical Line Next to Image
Uneven or Streaked Colors
943 

Cannot Complete Printing
Check1 Select setting not to compress printing data. (Windows)
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 the  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? (Windows)
Click  Print Options...

Part of Page Is Not Printed (Windows)
Check Are you using automatic duplex printing?
If you are using automatic duplex printing, the printable area at the top of the page will be 0.08 inches / 2 mm
shorter than usual.
Therefore, the bottom of the page may not be printed. To prevent this, set reduced printing on the printer driver.
Important

Paper Is Blank/Printing Is Blurry/Colors Are Wrong/White Streaks
Appear
 Paper Is Blank
 Printing Is Blurry
 Colors Are Wrong
946 

 White Streaks Appear
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2 Check status of ink tanks. Replace ink tank if ink has run out.
Replacing Ink
Check3 Is orange tape or protective film still on ink tank?
Make sure all the protective film is peeled off to expose the Y-shaped air hole, as shown below (A).
If the orange tape remains on the ink tank (B), peel it off.
Check4  Print nozzle check pattern and perform any necessary maintenance operations
such as print...

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.

Lines Are Misaligned
Check1 Check paper and print quality settings.
Print Results Are Unsatisfactory
Check2 Perform print head alignment.
If printed lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position.
Aligning the Print Head
Note

Lines Incomplete or Missing (Windows)
Check1 Are you using Page Layout Printing or Binding Margin function?
When the Page Layout Printing or Binding margin function is in use, thin lines may not be printed. Try thickening
the lines in the document.
Check2  Is print data extremely large?
Click  Print Options  on Page Setup  sheet of the printer driver. Then set  Prevention of Print Data Loss to On in
the dialog that appears.
* This may reduce print quality.
950