Testing And Cleaning The Bj Cartridge Print Head; Printing The Nozzle Check Pattern - Canon C75, C80, C70 User Manual

Testing and Cleaning the BJ Cartridge Print Head

The print head in the BJ cartridge contains nozzles through which ink is propelled onto the
paper. To maintain the best possible print quality, these nozzles need to be cleaned from time
to time. Your unit is equipped with a print head cleaning function that does this.

Printing the Nozzle Check Pattern

Before cleaning the print head, you may want to print the nozzle check pattern to test the
print head of the BJ cartridge installed in the unit. This test shows if each print head nozzle is
operating properly.
Refer to the flow chart (
cartridge print head.
Follow this procedure to print the nozzle check pattern:
1
Press Function.
2
Press Cleaning.
3
Press Set.
• The unit prints the nozzle check pattern.
When the Colour BJ cartridge is installed, the pattern includes all four colours; yellow,
magenta, cyan, and black. In the colour pattern you will notice that lines are missing between
the colours. This is normal.
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Print the nozzle check pattern again after cleaning the BJ cartridge print head to check if cleaning
n
corrected the problem.
12-10 Maintenance
p. 12-9) for the correct order of testing and cleaning the BJ
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Ver. 1.00
Nozzle Check
Pattern
If the pattern is
broken, missing, or a
specific colour is not
printed, clean the BJ
cartridge print head.
( p. 12-11)
Chapter 12