Canon Pixma Ip4850 User Guide

							Advanced GuideTroubleshooting
Contents > Routine Maintenance > W hen Printing Becomes Faint or Colors Are Incorrect > Printing the Nozzle Check
Pattern
C094 
 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 th e
ink tank whose ink is low. 
See Replacing an Ink Tank.
Printing the nozzle check pattern w ithout a compute r
 You can also print the nozzle check pattern from the printer itself using the RESUME/CANCEL
button.
1. Make sure that the power is turned on and one or mo re sheets of A4 or Letter-sized plain paper
are loaded in the Cassette.
2. Open the Paper Output Tray gently, and extend th e Output Tray Extension to open.
If the Inner Cover is open, close it.
3. Hold down the 
RESUME/CANCEL button until the POWER  lamp flashes green twice, then release
it immediately. 
The nozzle check pattern will be printed.
Do not perform any other operations until the print er completes the printing of the nozzle check
pattern.
Examine the nozzle check pattern and take an approp riate action.
See step 1 in Examining the Nozzle Check Pattern.
1.Make sure that the power is turned on.
2.Make sure that one or more sheets of A4 or Letter-s ized plain paper are loaded in
the Cassette.
3.Open the Paper Output Tray gently, and extend the O utput Tray Extension to open.
 Important
 If the Inner Cover is open, close it.
4.Open the printer driver setup window.
See Opening the Printer Driver Setup W indow.
5.Print the nozzle check pattern.
(1) Click the Maintenance tab.
(2) Click Nozzle Check. Page 51 of 468 pages
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							(3) Confirm the message and click Print Check Pattern.
The nozzle check pattern will be printed.
Do not perform any other operations until the printer completes the printing of the nozzle check patte rn.
 Note
 Clicking Initial Check Items displays the items to be checked before printing the nozzle
check pattern.
6.Examine the nozzle check pattern.
See Examining the Nozzle Check Pattern.
      
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							Advanced GuideTroubleshooting
Contents > Routine Maintenance > W hen Printing Becomes Faint or Colors Are Incorrect > Examining the Nozzle Check
Pattern
C095 
 Examining the Nozzle Check Pattern 
Examine the nozzle check pattern, and clean the Pri nt Head if necessary.
1.Check if there are missing lines in the pattern (1)  or horizontal white streaks in the
pattern (2).
If there are missing lines in the pattern (1):
Clean the print head nozzles of the Black ink group  (PGBK).
(A) Good
(B) Bad (Lines are missing)
If there are horizontal w hite streaks in the patter n (2):
Clean the print head nozzles of the Color ink group (C, M, Y, BK).
(A) Good 
(B) Bad (Horizontal white streaks are present)
If there are missing lines in the pattern (1) and a lso there are horizontal w hite streaks in the
pattern (2):
Clean the print head nozzles of the All Colors ink  group.
2.Take the appropriate action.
When cleaning is not required:
Click Exit on the Pattern Check dialog box to exit th e nozzle check pattern examination.
When cleaning is required:
(1) Click Cleaning. Page 53 of 468 pages
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							(2) Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded
in the Cassette.
Follow the procedure from (3) in step 5 in Cleaning the Print Head to clean the Print Head.
      
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							Advanced GuideTroubleshooting
Contents > Routine Maintenance > W hen Printing Becomes Faint or Colors Are Incorrect > Cleaning the Print Head
C096 
 Cleaning the Print Head 
Clean the Print Head if lines are missing or if hor izontal white streaks are present in the printed no zzle
check pattern. Cleaning unclogs the nozzles and res tores the print head condition. Cleaning the Print
Head consumes ink, so clean the Print Head only whe n necessary.
You need to prepare: a sheet of A4 or Letter-sized  plain paper
 Note
Cleaning the Print Head w ithout a computer
 You can also clean the Print Head (print head nozzles of all ink colors) from the printer itself using
the RESUME/CANCEL button.
1. Make sure that the power is turned on. 
2. Hold down the 
RESUME/CANCEL button until the POWER  lamp flashes green once, then release
it immediately.
The printer starts cleaning the Print Head.W hen the  POWER lamp is lit green after flashing, the cleaning wil l be completed.
Print the nozzle check pattern to check the print h ead condition after cleaning.
See Examining the Nozzle Check Pattern.
If you click Cleaning on the Pattern Check dialog box  that appears after printing the nozzle check pattern
(See 
W hen cleaning is required:.), the printer starts cleaning the Print Head. Mak e sure that one or more
sheets of A4 or Letter-sized paper are loaded in th e Cassette, then go to (3) in step 5.
1.Make sure that the power is turned on.
2.Make sure that one or more sheets of A4 or Letter-s ized plain paper are loaded in
the Cassette.
3.Open the Paper Output Tray gently, and extend the O utput Tray Extension to open.
 Important
 If the Inner Cover is open, close it.
4.Open the printer driver setup window.
See Opening the Printer Driver Setup W indow.
5.Clean the Print Head.
(1) Click the Maintenance tab.
(2) Click Cleaning. Page 55 of 468 pages
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							(3) Select the ink group to clean.
 Note
 This printer has two kinds of black ink: PGBK (pigment ink) and BK (dye ink).
Check the nozzle check pattern, then click Black if  there are missing lines in PGBK, or click
Color if there are horizontal white streaks in BK. 
For details on the nozzle check pattern, see Examining the Nozzle Check Pattern.
(4) Click Execute.
The printer starts cleaning the Print Head when the  
POWER lamp starts flashing green.
Do not perform any other operations until the print er completes the cleaning of the Print Head. This t akes
about 1 minute.
 Note
 Clicking Initial Check Items displays the items to  be checked before cleaning the Print Head.
(5) Confirm the message and click Print Check Pattern.
The nozzle check pattern will be printed.
Do not perform any other operations until the print er completes the printing of the nozzle check patte rn.
6.Examine 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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							Advanced GuideTroubleshooting
Contents > Routine Maintenance > W hen Printing Becomes Faint or Colors Are Incorrect > Cleaning the Print Head
Deeply
C097 
 Cleaning the Print Head Deeply 
If print quality does not improve by the standard clea ning of the Print Head, clean the Print Head deeply.
Cleaning the Print Head deeply consumes more ink th an 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 extend the O utput Tray Extension to open.
 Important
 If the Inner Cover is open, close it.
4.Open the printer driver setup window.
See Opening the Printer Driver Setup W indow.
5.Clean the Print Head deeply.
(1) Click the Maintenance tab.
(2) Click Deep Cleaning.
(3) Select the ink group to clean deeply.
 Note
 This printer has two kinds of black ink: PGBK (pigment ink) and BK (dye ink).
Check the nozzle check pattern, then click Black if  there are missing lines in PGBK, or click
Color if there are horizontal white streaks in BK. 
For details on the nozzle check pattern, see Examining the Nozzle Check Pattern.
(4) Click Execute. Page 57 of 468 pages
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							 Note
 Clicking Initial Check Items displays the items to be checked before cleaning the Print Head
deeply.
(5) Confirm the message and click OK.
The printer starts cleaning the Print Head deeply w hen the 
POWER lamp starts flashing green.
Do not perform any other operations until the print er completes the deep cleaning of the Print Head. T his
takes about 2 minutes 30 seconds.
(6) Confirm the message and click Print Check Pattern.
The nozzle check pattern will be printed.
Do not perform any other operations until the print er completes the printing of the nozzle check patte rn.
6.Examine the nozzle check pattern.
See step 1 in 
Examining the Nozzle Check Pattern.
If a particular color is not printed properly, repl ace 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 the service center.
      
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							Advanced GuideTroubleshooting
Contents > Routine Maintenance > W hen Printing Becomes Faint or Colors Are Incorrect > Aligning the Print Head
C098 
 Aligning the Print Head 
If printed ruled lines are misaligned or print resu lts 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 sheet will not be printed correctly.
Replace the ink tank whose ink is low.
See Replacing an Ink Tank.
 If you run out of supplied paper (Canon Matte Phot o Paper MP-101) or the specified Canon genuine
paper is not immediately available or obtainable, y ou can use plain paper and align the Print Head
manually.
Refer to the on-screen manual: Advanced Guide.
 The print head alignment pattern is printed in black and blue.
Aligning the Print Head w ithout a computer
 You can also align the Print Head from the printer  itself using the RESUME/CANCEL button.
1. Make sure that the power is turned on, and load a sh eet of A4 or Letter-sized supplied paper or
Canon Matte Photo Paper MP-101 in the Rear Tray. Load it with the printing side (whiter side)
facing you in the Rear Tray.
2. Open the Paper Output Tray gently, and extend the Output Tray Extension to open.
If the Inner Cover is open, close it.
3. Hold down the 
RESUME/CANCEL button until the POWER lamp flashes green four times, then
release it immediately. 
The print head alignment sheet will be printed and  the printer will adjust the print head position
automatically. 
Do not perform any other operations until the print er completes the printing of the print head
alignment pattern.
1.Make sure that the power is turned on.
2.Load a sheet of A4 or Letter-sized supplied paper o r Canon Matte Photo Paper MP-
101 in the Rear Tray.
Load the paper with the print side (whiter side) facin g 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.
3.Open the Paper Output Tray gently, and extend the O utput Tray Extension to open.
 Important
 If the Inner Cover is open, close it.
4.Open the printer driver setup window.
See Opening the Printer Driver Setup W indow.
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							5.Adjust the print head position.
(1) Click the Maintenance tab.
(2) Click Print Head Alignment.
(3) Confirm the message and click Align Print Head.
The print head alignment sheet will be printed and the print head position will be adjusted automatically.
Do not perform any other operations until the print er completes the printing of the print head alignme nt
pattern. This takes about 5 minutes.
 Note
 If the automatic adjustment of the print head posi tion has failed, the Alarm lamp flashes.
Refer to Eleven flashes: of Alarm Lamp Flashes O range in 
Troubleshooting of the on-
screen manual: Advanced Guide .
 If the print results are still not satisfactory af
ter adjusting the print head position as described
above, adjust the print head position manually. 
Refer to the on-screen manual: 
Advanced Guide.
 
     
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