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98 Canon BJC-8500 User’s Manual
Cleaning the print heads
This section shows you how to start print head cleaning with the RESUME
button on the printer operation panel. For details about starting print head
cleaning with the printer driver, see the Windows Print Guide or the
Macintosh Print Guide.
■ Print head cleaning consumes ink, so perform print head cleaning only
after you notice a deterioration in the quality of printed pages or when
the Nozzle Check Pattern is abnormal. (☞ 97)
■ Before you begin, make sure both the printer and the computer are
switched on.
■ Print head cleaning is performed with the BJ Cartridges mounted in the
printer. Never remove the BJ Cartridges from the cartridge holder in an
attempt to clean them manually.
■ You can also execute print head cleaning with the printer driver. For
details, see the Windows Print Guide or the Macintosh Print Guide.
1
Make sure the printer is switched on.
2
Press and hold down the RESUME button for over three seconds and
release after the printer beeps once.
3
To check the print heads, print a Nozzle Check Pattern. (☞ 96)
4
If the results of the Nozzle Check Pattern are not satisfactory, repeat
print head cleaning then print another Nozzle Check Pattern.
Repeat print head cleaning and printing the Nozzle Check Pattern
until the test pattern is safisfactory.
After five repetitions of alternately cleaning the print heads and print-
ing the Nozzle Check Pattern, if the results of the Nozzle Check
Pattern are still not satisfactory, replace the BJ Cartridge. (☞ 99)