Canon Pixma Mp540 User Guide
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Advanced Guide Troubleshooting
Contents > Routine Maintenance > When Printing Becomes Faint or Colors Are Incorrect > Printing the Nozzle Check
Pattern
Printing the Nozzle Check Pattern
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.
You need to prepare: a sheet of A4 or Letter-sized plain paper
Note
If the remaining ink level is low, the nozzle check pattern will not be printed correctly. Replace the
ink tank whose ink is low.
See Replacing an Ink Tank.
1.Make sure that the power is turned on.
2.Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded in
the Cassette.
3.Open the Paper Output Tray gently, and open the Output Tray Extension.
4.Print the nozzle check pattern.
(1) Select Settings on the HOME screen, and press the OK button.
(2) Select Maintenance, and press the OK button.
(3) Select Nozzle check pattern, and press the OK button.
(4) Select Yes, and press the OK button.
The nozzle check pattern will be printed and two pattern confirmation screens appear on the LCD.
5.Examine the nozzle check pattern.
See Examining the Nozzle Check Pattern.
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Page 91 of 758 pages Printing the Nozzle Check Pattern
Advanced Guide Troubleshooting Contents > Routine Maintenance > When Printing Becomes Faint or Colors Are Incorrect > Examining the Nozzle Check Pattern Examining the Nozzle Check Pattern Examine the nozzle check pattern, and clean the Print Head if necessary. 1.Check if there are no missing lines in the pattern (1) or no horizontal white streaks in the pattern (2). (A) No missing lines/No horizontal white streaks (B) Lines are missing/Horizontal white streaks are present 2.Select the pattern that is closer to the printed nozzle check pattern on the confirmation screen. For (A) (no missing lines or no horizontal white streaks) in both (1) and (2): Select All A and press the OK button. The cleaning is not required. The screen returns to the Maintenance screen. For (B) (lines are missing or horizontal white streaks are present) in (1) or (2): (1) Select Also B and press the OK button. Clean the Print Head. The cleaning confirmation screen appears. (2) Select Yes and press the OK button. The machine starts cleaning the Print Head. See Cleaning the Print Head. Page 92 of 758 pages Examining the Nozzle Check Pattern
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Advanced Guide Troubleshooting
Contents > Routine Maintenance > When Printing Becomes Faint or Colors Are Incorrect > Cleaning the Print Head
Cleaning the Print Head
Clean the Print Head if lines are missing or if horizontal white streaks are present in the printed nozzle
check pattern. 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 paper
1.Make sure that the power is turned on.
2.Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded in
the Cassette.
3.Open the Paper Output Tray gently, and open the Output Tray Extension.
4.Clean the Print Head.
(1) Select Settings on the HOME screen, and press the OK button.
(2) Select Maintenance, and press the OK button.
(3) Select Cleaning, and press the OK button.
(4) Select Yes, and press the OK button.
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 1 minute 30 seconds.
(5) Select Yes, and press the OK button.
The nozzle check pattern will be printed.
5.Check the nozzle check pattern.
See Examining the Nozzle Check Pattern.
Note
If the problem is not resolved after cleaning the Print Head twice, clean the Print Head deeply.
See Cleaning the Print Head Deeply.
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Page 94 of 758 pages Cleaning the Print Head
Advanced Guide Troubleshooting
Contents > Routine Maintenance > When Printing Becomes Faint or Colors Are Incorrect > Cleaning the Print Head
Deeply
Cleaning the Print Head Deeply
If 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 paper
1.Make sure that the power is turned on.
2.Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded in
the Cassette.
3.Open the Paper Output Tray gently, and open the Output Tray Extension.
4.Clean the Print Head deeply.
(1) Select Settings on the HOME screen, and press the OK button.
(2) Select Maintenance, and press the OK button.
(3) Select Deep cleaning, and press the OK button.
(4) Select Yes, and press the OK button.
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 minutes.
(5) Select Yes, and press the OK button.
The nozzle check pattern will be printed.
5.Check the nozzle check pattern.
See Examining the Nozzle Check Pattern.
If a particular color is not printed properly, replace the ink tank of that color.
See Replacing an Ink Tank.
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 your Canon service representative.
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Page 95 of 758 pages Cleaning the Print Head Deeply
Advanced Guide Troubleshooting Contents > Routine Maintenance > When Printing Becomes Faint or Colors Are Incorrect > Aligning the Print Head Aligning the Print Head If printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position. You need to prepare: three sheets of A4 or Letter-sized plain paper Note The print head alignment pattern is printed in black and blue. To cancel the adjustment of the print head position, press the HOME button on the input screens for the head position adjustment values. 1.Make sure that the power is turned on. 2.Make sure that three or more sheets of A4 or Letter-sized plain paper are loaded in the Cassette. 3.Open the Paper Output Tray gently, and open the Output Tray Extension. 4.Print the print head alignment pattern. (1) Select Settings on the HOME screen, and press the OK button. (2) Select Maintenance, and press the OK button. (3) Select Manual head align, and press the OK button. Note Select Head alignment print to print the current head position adjustment values. (4) Select Yes, and press the OK button. The first print head alignment pattern will be printed. (5) When the message Did the patterns print correctly? appears, confirm that the pattern is printed correctly, select Yes, then press the OK button. The input screen for the head position adjustment values appears. 5.Adjust the print head position. (1) Check the printed patterns, and use the (Left) or (Right) button to input the number of the pattern that has the least noticeable streaks for column A. Page 96 of 758 pages Aligning the Print Head
Note If it is difficult to select the best pattern, select the pattern that has the least noticeable vertical or horizontal streaks. (A) Least noticeable vertical streaks (B) Noticeable vertical streaks (C) Least noticeable horizontal streaks (D) Noticeable horizontal streaks (2) Repeat the same procedure to input the pattern number for each column from B to G, and press the OK button. (3) Confirm the message, and press the OK button. The second print head alignment pattern will be printed. (4) Check the printed patterns, use the (Left) or (Right) button to input the number of the pattern that has the least noticeable streaks for each column from H to Q, then press the OK button. (5) Confirm the message, and press the OK button. The third print head alignment pattern will be printed. Page 97 of 758 pages Aligning the Print Head
(6) Check the printed patterns, use the (Left) or (Right) button to input the
number of the pattern that has the least noticeable stripes for each column from
a to j, then press the OK button.
Note
If it is difficult to select the best pattern, select the pattern that has the least noticeable
horizontal stripes.
(E) Least noticeable horizontal stripes
(F) Noticeable horizontal stripes
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Page 98 of 758 pages Aligning the Print Head
Advanced Guide Troubleshooting Contents > Routine Maintenance > Cleaning the Paper Feed Roller Cleaning the Paper Feed Roller If the Paper Feed Roller is dirty or paper powder is attached to it, paper may not be fed properly. In this case, clean the Paper Feed Roller. Cleaning will wear out the Paper Feed Roller, so perform this only when necessary. You need to prepare: three sheets of A4 or Letter-sized plain paper 1.Make sure that the power is turned on, and remove any paper from the machine. 2.Open the Paper Output Tray gently, and open the Output Tray Extension. 3.Clean the Paper Feed Roller. (1) Select Settings on the HOME screen, and press the OK button. (2) Select Maintenance, and press the OK button. (3) Select Roller cleaning, and press the OK button. (4) Select Yes, and press the OK button. (5) Select the paper source to clean (Rear tray or Cassette), and press the OK button. The Paper Feed Roller will rotate as it is cleaned. 4.Make sure that the Paper Feed Roller stops rotating, and load paper. Load three sheets of A4 or Letter-sized plain paper in the paper source you selected in the procedure of (5) in step 3. 5.Repeat the procedures of (3) to (5) in step 3 again. The paper is ejected after cleaning. If the problem is not resolved after cleaning the Paper Feed Roller (A) in the Rear Tray, turn off the power, unplug the power cord, then wipe the Paper Feed Roller located in the center inside the Rear Tray with a moistened cotton swab or the like. Rotate the roller manually in the direction of the arrow (B) as you clean it. Do not touch the roller with your fingers; rotate it with the cotton swab. Page 99 of 758 pages Cleaning the Paper Feed Roller
If this does not solve the problem, contact your Canon service representative.
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Page 100 of 758 pages Cleaning the Paper Feed Roller