Canon PIXMA MX870 - Manual (Page 145)

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 missing lines in the pattern (1) or 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) :
(1)
The cleaning is not required. Select All A and press the
OK
button.
(2)
Confirm the message and press the OK button.
The screen will return to the Maintenance screen.
Note
To use other available functions, press the corresponding mode button.
For (B) (lines are missing or horizontal white streaks are present) in (1) or (2), or in both (1) and
(2) :
(1)
The cleaning is required. Select Also B and press the
OK
button.
Page 145 of 1127 pages Examining the Nozzle Check Pattern