Canon PIXMA MP450 MP450 User's Guide - Page 90

Examining The Nozzle Check Pattern, There are no white stripes./All patterns are printed normally.

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„ Examining The Nozzle Check Pattern The nozzle check pattern should appear as follows when ink is discharged properly. Examine the nozzle check pattern output by the machine. (A) z If the lines are broken (1), or white lines (2) are present in the pattern (A), replace the relevant ink tank. (See "Replacing A FINE Cartridge" on page 76.) (1) (2) z There are no white stripes./All patterns are printed normally. (1) Select and press [OK]. The screen returns to the Maintenance screen. 88 Routine Maintenance Chapter 10

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88
Chapter 10
Routine Maintenance
Examining The Nozzle Check Pattern
The nozzle check pattern should appear as follows when ink is discharged properly.
Examine the nozzle check pattern output by the machine.
If the lines are broken (1), or white lines (2) are present in the pattern (A), replace the relevant
ink tank. (See “Replacing A FINE Cartridge” on page 76.)
There are no white stripes./All patterns are printed normally.
(1)
Select <All A> and press [OK].
The screen returns to the Maintenance screen.
(A)
(1)
(2)