Canon printer PIXMA MG3620 User Manual

Maintenance
If Printing Is Faint or Uneven
Performing Maintenance Functions from Your Computer (Windows)
Performing Maintenance Functions from Your Computer (Mac OS)
Cleaning
171 

If Printing Is Faint or Uneven
Maintenance Procedure
Printing the Nozzle Check Pattern
Examining the Nozzle Check Pattern
Cleaning the Print Head
Cleaning the Print Head Deeply
Aligning the Print Head
172 

Maintenance ProcedureIf print results are blurred, colors are not printed correctly, or print results are unsatisfactory (e.g. misalignedprinted ruled lines), perform the maintenance procedure below.
Important

From the computer
Cleaning the Print Heads (Windows)
Cleaning the Print Heads (Mac OS)
After cleaning the print head, print and examine the nozzle check pattern: 
 Step1
If the problem is not resolved after performing from step 1 to step 3 twice:
Step4  Clean the print head deeply.
From the machine
Cleaning the Print Head Deeply
From the computer
Cleaning the Print Heads  (Windows)
Cleaning the Print Heads (Mac OS)
If the problem is not resolved, turn off the power and clean the print head deeply again...

Printing the Nozzle Check PatternPrint the nozzle check pattern to determine whether the ink ejects properly from the print head nozzle.
Note

Examining the Nozzle Check PatternExamine the nozzle check pattern, and clean the print head if necessary.1.
Check if there are missing lines in the pattern A or horizontal white streaks in the pattern B.
C: Number of sheets printed so far
If there are missing lines in the pattern A:
Cleaning the print head  is required.
D: Good
E: Bad (lines are missing)
If there are horizontal white streaks in the pattern B:
Cleaning the print head  is required.
F: Good
G: Bad (horizontal white streaks are present)
Note

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.1.
Make sure that the power is turned on.
2.
Hold down the  Stop button until the  Alarm lamp flashes twice, then release it immediately.
The machine starts cleaning the print head.
The cleaning will be complete...

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.1.
Make sure that the power is turned on.
2.
Hold down the  Stop button until the  Alarm lamp flashes three times, then release it
immediately.
The machine starts cleaning the print head deeply. The cleaning will be complete...

Aligning the Print HeadIf printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head
position.
Note