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96 Canon BJC-8500 User’s Manual
Maintaining print quality
This section shows you how to test and clean the print heads and replace
ink tanks or BJ Cartridges when required. You should always check the
results of your printouts to detect signs of a deterioration in print quality.
Specifically, you should look for these signs of diminished performance:
■ Broken lines in graphic images or broken characters in text
■ Light areas in areas filled with colour
■ Light or white vertical streaking in the image
Printing a Nozzle Check Pattern
Print a Nozzle Check Pattern so you can check the operation of the print
heads.
Printing the Nozzle Check Pattern consumes ink, so print one only
when you see fading, streaking, or other signs of uneven printing on
a page.
1
Insert one sheet of A4 or Letter paper into the sheet feeder.
Do not use a paper size smaller than A4 or Letter.
2
Switch off the printer and wait a few seconds.
3
Press down and hold the POWER button until you hear one beep. The
Nozzle Check Pattern print begins.
4
Check the results of the Nozzle Check Pattern. (☞ 97)
You can also start printing the Nozzle Check Pattern with the printer
driver. For details, refer to the
Windows Print Guide
or
Macintosh
Print Guide
. Before you start a Nozzle Check Pattern, make sure
the paper cassette is loaded with A4 or Letter size paper.