Canon printer PIXMA MG7520 User Manual

							For (A) (no missing lines or no horizontal white streaks) in both the pattern (C) and pattern (D):1.
The cleaning is not required. Tap All A.
2.
Confirm the message, then tap  OK.
The screen will return to the  Maintenance screen.
For (B) (lines are missing or horizontal white streaks are present) in the pattern (C) or pattern (D),
or in both patterns:
1.
The cleaning is required. Tap  Also B.
The cleaning confirmation screen will appear.
2.
Tap  Yes.
The machine starts cleaning the print head.
Cleaning the Print Head
Note
•
The total number of sheets printed so far is shown in increments of 50 sheets on the printout of the nozzle check pattern.
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							Cleaning the Print HeadClean the print head if lines are missing or if horizontal white streaks are present in the printed nozzle checkpattern. Cleaning unclogs the nozzles and restores the print head condition. Cleaning the print head
consumes ink, so clean the print head only when necessary.
You need to prepare: a sheet of A4 or Letter-sized plain paper1.
Make sure that the power is turned on.
2.
Load a sheet of A4 or Letter-sized plain paper in the cassette 2.
After inserting the cassette into the machine, the paper information registration screen is displayed on
the touch screen. Select  A4 or  Letter  for Page size  and Plain paper  for Type , then tap  Register.
If a message is displayed on the screen, follow the directions in the message to complete registration.
3.
Open the paper output tray.
1.
Holding both sides of the paper output tray, gently open it.
The output tray extension will open automatically when the paper output tray is opened.
2.
Extend the paper output support.
Important
•
If the disc tray guide is open, close it.
4.
Clean the print head.
1.
Flick the HOME screen, then tap   Setup .
Using the Operation Panel
The setup menu screen will appear.
2.
Tap   Maintenance .
The  Maintenance  screen will appear.
3.
Tap Cleaning .
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							The confirmation screen will appear.
4.
Tap Yes.
The machine starts cleaning the print head.
Do not perform any other operations until the machine completes the cleaning of the print head. This takes about 2 to 3 minutes.
The pattern print confirmation screen will appear.
5.
Tap  Yes.
The nozzle check pattern will be printed.
5.
Examine the nozzle check pattern .
Note
•
If the problem is not resolved after cleaning the print head twice, clean the print head deeply.
223 
						

							Cleaning the Print Head DeeplyIf print quality does not improve by the standard cleaning of the print head, clean the print head deeply.
Cleaning the print head deeply consumes more ink than the standard cleaning of the print head, so clean the print head deeply only when necessary.
You need to prepare: a sheet of A4 or Letter-sized plain paper1.
Make sure that the power is turned on.
2.
Load a sheet of A4 or Letter-sized plain paper in the cassette 2.
After inserting the cassette into the machine, the paper information registration screen is displayed on
the touch screen. Select  A4 or  Letter  for Page size  and Plain paper  for Type , then tap  Register.
If a message is displayed on the screen, follow the directions in the message to complete registration.
3.
Open the paper output tray.
1.
Holding both sides of the paper output tray, gently open it.
The output tray extension will open automatically when the paper output tray is opened.
2.
Extend the paper output support.
Important
•
If the disc tray guide is open, close it.
4.
Clean the print head deeply.
1.
Flick the HOME screen, then tap   Setup .
Using the Operation Panel
The setup menu screen will appear.
2.
Tap   Maintenance .
The  Maintenance  screen will appear.
3.
Tap Deep cleaning .
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							The confirmation screen will appear.
4.
Tap Yes.
The machine starts cleaning the print head deeply.
Do not perform any other operations until the machine completes the deep cleaning of the print head. This takes about 2 to 3 minutes.
The pattern print confirmation screen will appear.
5.
Tap  Yes.
The nozzle check pattern will be printed.
6.
When the completion message appears, tap  OK.
5.
Examine the nozzle check pattern .
If a particular color is not printed properly, 
replace the ink tank  of that color.
If the problem is not resolved, turn off the power and clean the print head deeply again after 24 hours.
If the problem is still not resolved, the print head may be damaged. Contact the service center.
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							Aligning the Print HeadIf printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print headposition.
Note
•
If the remaining ink level is low, the print head alignment sheet will not be printed correctly.
Replace the ink tank  whose ink is low.
You need to prepare: a sheet of A4 or Letter-sized plain paper (including recycled paper)*
* Be sure to use paper that is white and clean on both sides.
1.
Make sure that the power is turned on.
2.
Load a sheet of A4 or Letter-sized plain paper in the cassette 2.
After inserting the cassette into the machine, the paper information registration screen is displayed on
the touch screen. Select  A4 or  Letter  for Page size  and Plain paper  for Type , then tap  Register.
If a message is displayed on the screen, follow the directions in the message to complete registration.
3.
Open the paper output tray.
1.
Holding both sides of the paper output tray, gently open it.
The output tray extension will open automatically when the paper output tray is opened.
2.
Extend the paper output support.
Important
•
If the disc tray guide is open, close it.
4.
Adjust the print head position automatically.
1.
Flick the HOME screen, then tap   Setup .
Using the Operation Panel
The setup menu screen will appear.
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							2.
Tap  Maintenance .
The  Maintenance  screen will appear.
3.
Tap Auto head alignment .
The confirmation screen will appear.
4.
Tap Yes.
The print head alignment sheet will be printed and the print head position will be adjusted automatically.
This takes about 3 to 4 minutes.
Important
•
Do not open the operation panel while printing is in progress.
Note
•
If the automatic adjustment of the print head position has failed, the error message appears on the
touch screen.
A Message Is Displayed
5.
When the completion message appears, tap  OK.
Note
•
If the print results are still not satisfactory after adjusting the print head position as described above,
align the print head manually .
You can also align the print head manually from a computer.
Aligning the Print Head Position Manually from Your Computer
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							Aligning the Print Head ManuallyIf printed ruled lines are misaligned or print results are still not satisfactory after adjusting the print head
position automatically, adjust the print head position manually.
Note
•
For details on adjusting the print head position automatically, see Aligning the Print Head .
You need to prepare: three sheets of A4 or Letter-sized plain paper
1.
Make sure that the power is turned on.
2.
Load three sheets of A4 or Letter-sized plain paper in the cassette 2.
After inserting the cassette into the machine, the paper information registration screen is displayed on
the touch screen. Select  A4 or  Letter  for Page size  and Plain paper  for Type , then tap  Register.
If a message is displayed on the screen, follow the directions in the message to complete registration.
3.
Open the paper output tray.
1.
Holding both sides of the paper output tray, gently open it.
The output tray extension will open automatically when the paper output tray is opened.
2.
Extend the paper output support.
Important
•
If the disc tray guide is open, close it.
4.
Print the print head alignment pattern.
1.
Flick the HOME screen, then tap   Setup .
Using the Operation Panel
The setup menu screen will appear.
2.
Tap   Maintenance .
The  Maintenance  screen will appear.
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							3.Tap Manual head alignment .
The confirmation screen will appear.
Note
•
To print and check the current head position adjustment values, select  Print the head alignment
value .
4.
Tap Yes.
The print head alignment pattern is printed.
Important
•
Do not open the operation panel while printing is in progress.
5.
When the message " Did the patterns print correctly? " appears, confirm that the pattern is
printed correctly, tap  Yes.
6.
Confirm the message, then tap  Next.
The input screen for the head position adjustment values will appear.
5.
Look at the first pattern and adjust the print head position.
1.
Tap A to check the printed patterns, and tap the number of the pattern in column A that has
the least noticeable vertical streaks.
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							Note
•
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical
streaks.
(A) Unnoticeable vertical streaks
(B) Noticeable vertical streaks
2.
Repeat the same procedure until you finish inputting the pattern number for columns B to H, then tap  OK.
For columns G and H, pick the setting that produces the least noticeable horizontal streaks at the position
indicated by an arrow.
Note
•
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal
streaks.
(C) Unnoticeable horizontal streaks
(D) Noticeable horizontal streaks
3.
Confirm the message, then tap  OK.
The second pattern is printed.
230