Aligning the Print Head - MP990

Article ID: ART132420 | Date published: 05/12/2015 | Date last updated: 07/31/2019
 

Description

If printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position.

 

Solution

If printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position.

You need to prepare: a sheet of A4 or Letter-sized Canon Matte Photo Paper MP-101

 Note

  • If the remaining ink level is low, the print head alignment pattern will not be printed correctly. Replace the ink tank whose ink is low.
     
  • The print head alignment pattern is printed in black and blue.
     
  • If you run out of the supplied paper (Canon Matte Photo Paper MP-101) or the specified Canon genuine paper is not immediately available or obtainable, you can use plain paper and align the Print Head manually.

 

  1. Make sure that the power is turned on.
     
  2. Load a sheet of supplied paper or A4 or Letter-sized Canon Matte Photo Paper MP-101 in the Rear Tray.
    Load the paper with the print side (whiter side) facing you in the Rear Tray.

 Important
  • You cannot use the Cassette to align the Print Head automatically. Be sure to load paper in the Rear Tray.
 
  1. Open the Paper Output Tray gently, and open the Output Tray Extension.

 Important
  • If the Inner Cover is open, close it.
 
  1. Print the print head alignment pattern.
 
  1. Select Settings on the HOME screen, and press the OK button.
    The Settings screen will appear.
     
  2. Select Maintenance , and press the OK button.
    The Maintenance screen will appear.
     
  3. Select Auto head align, and press the OK button.



    The confirmation screen will appear.
     
  4. Select Yes, and press the OK button.
    The print head alignment pattern will be printed and the print head position will be adjusted automatically.
    This takes about 7 minutes.

 Note
  • Press the HOME button to exit the Settings menu and display the HOME screen.
     
  • If the automatic adjustment of the print head position has failed, the error message "Auto head align has failed." appears on the LCD.
     
  • If the print results are still not satisfactory after adjusting the print head position as described above, adjust the print head position manually.



Manual Print Head Alignment

If the results of Automatic Print Head Alignment are not satisfactory, follow the procedure below to perform Manual Print Head Alignment to precisely align the Print Head.


 Note

  • Close the Inner Cover if it is opened.
     
  • The print head alignment pattern is printed in black and blue only.
  • Close the Inner Cover if it is opened.The print head alignment pattern is printed in black and blue only.
 
  1. Make sure that the machine is turned on.
     
  2. Load three sheets of A4 or Letter-sized plain paper in the Cassette.
     
  3. Open the Paper Output Tray and extend the Output Tray Extension.
     
  4. Select Settings on the HOME screen, then press the OK button.
    The Settings screen is displayed.
     
  5. Select Maintenance, then press the OK button.
    The Maintenance screen is displayed.
     
  6. Select Manual head align, then press the OK button.
    The confirmation screen is displayed.


 Note

  • If you select Head alignment print, the machine exits the process after printing the current head position adjustment values.
 
  1. Select Yes, then press the OK button.
    The print head alignment pattern is printed.


 Important

  • Do not open the Scanning Unit (Cover) while printing is in progress.
 
  1. When Did the patterns print correctly? is displayed, confirm that the pattern is printed correctly, select Yes, then press the OK button.
    The input screen for the head position adjustment values is displayed.


     
  2. Check the printed patterns, and use the  or  button to input the number of the pattern in column A that has the least noticeable vertical streaks.


 Note

  • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.



    (A) Less noticeable vertical white streaks

    (B) More noticeable vertical white streaks
 
  1. Repeat the same procedure until you finish inputting the pattern number for columns B to G, then press the OK button.
    For columns F and G, pick the setting pointed by an arrow that produces the least noticeable horizontal streaks.


 Note

  • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white streaks.



    (C) Less noticeable horizontal white streaks

    (D) More noticeable horizontal white streaks
 
  1. Confirm the displayed message and press the OK button.
    The second pattern is printed.

 Important
  • Do not open the Scanning Unit (Cover) while printing is in progress.
 
  1. Check the printed patterns, and use the or button to input the number of the pattern in column H that has the least noticeable vertical streaks.


 Note

  • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.



    (E) Less noticeable vertical white streaks

    (F) More noticeable vertical white streaks
 
  1. Repeat the same procedure until you finish inputting the pattern number for columns I to Q, then press the OK button.
     
  2. Confirm the displayed message and press the OK button.
    The third pattern is printed.

 Important
  • Do not open the Scanning Unit (Cover) while printing is in progress.
 
  1. Check the printed patterns, and use the or button to input the number of the pattern in column a that has the least noticeable horizontal streaks.


 Note

  • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal streaks.



    (G) Less noticeable horizontal white streaks

    (H) More noticeable horizontal white streaks
 
  1. Repeat the same procedure until you finish inputting the pattern number for columns b to j, then press the OK button.

 

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