Canon Color Bubble Jet BJC-4550 User Manual page 70

Test A
This test prints a repeating pattern of characters.
Demonstration
This test prints a sample page describing the printer's features.
Nozzle Test
Use this test print to check that each print head nozzle is operating
properly.
When the BC-21 Color BJ Cartridge is installed, the pattern includes all
four colors: yellow, magenta, cyan, and black. In the color pattern,
you'll notice that lines are missing between the colors. This is normal.
The following sample shows the Nozzle Test when the BC-20 Black
BJ Cartridge is installed.
5-5
Chapter 5
Maintaining the Printer