Canon BJ-30 - Manual (Page 50)

42 Using the Printer Chapter 3
Ripple Pattern
Print the Ripple pattern to verify the operation of your printer.
All available characters are printed in a repeating pattern using the default
print mode and character pitch. The following sample shows the Ripple
pattern in BJ mode.
Nozzle Pattern
Print the Nozzle pattern to check that each print head nozzle is operating
correctly. The following sample shows the Nozzle pattern: