Colr prints showing plenty of lines

Here's a solution from Canon USA:

Issue: Banded or streaked prints
Solution: Print Head Alignment MP530

Perform Print Head Alignment Instructions to perform a Print Head Alignment directly from the machine. If diagrams or ruled lines are misaligned, print head alignment is required. The print head alignment can be performed automatically or manually. If the automatic print head alignment does not work, adjust the print head manually. Automatic Print Head Alignment

1. Press <ON/OFF> to turn on the machine.
   
   
2. Load a few sheets of letter-sized plain paper in the auto sheet feeder.
   
   
3. Press the Open button to open the Paper Output Tray. Then open up and set the extension by pressing down the hollow on the front side.
   
   
4. Execute automatic print head alignment.
   
5. 1. Press <COPY> button.
      
   2. Press <Menu> repeatedly to select [MAINTENACE].
      
   3. Press the left or right cursor to select [AUTO HEAD ALIGN], then press the <OK>. (A pattern is printed and the print head is automatically aligned. It takes about five minutes to finish printing the pattern.)
      
      
      
      

1. Press <ON/OFF> to turn on the machine.
   
   
2. Load two sheets of Letter-sized plain paper in the auto sheet feeder or cassette.
   
   
3. Ensure that the proper paper source is selected.
   
   
4. Execute manual print head alignment.
   
5. 1. Press <Menu> repeatedly to select [MAINTENACE].
      
   2. Press the left or right cursor to select [ALIGN PRINT HEAD], then press the <OK>. (The nozzle check pattern is printed.)
      
      
6. Check the printed patterns and use the left or right arrow to input the number of the pattern in column A that has the least noticeable streaks.
   
   
   
   
7. Press <OK> to move the cursor to column B, and then use the left or right arrow to input the number of the pattern that has the least noticeable streaks.
   
   
8. Repeat the procedure until you finish inputting the pattern number for columcolr prints showing plenty of lines - mp500_align_from_unit_1.jpguploads/images/mp500_align_from_unit_1.jpg" alt="mp500_align_from_unit_1.jpg" class="h_mi" />
   
   
9. When you have finished inputting all pattern numbers, press <OK>.
   
   Note: For columns A through N select the patterns with the least visible vertical streaks. For columns O and P select the colr prints showing plenty of lines - align_compare.jpg fewest visible horizontal streaks.
   
   
   
   <1> Example of the pattern with the fewest visible vertical streak
   
   
   <1> Example of the pattern with the fewest visible horizontal streak
   
   <2> Example of the pattern with the most visible horizontal streak