Canon Pixma Ip4840 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...

(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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Printing 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...

(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...

(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...

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...

 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...

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...

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...