Canon FAXPHONE 40 User Guide - Page 73

Testing and cleaning the BJ cartridge print

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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 fax is equipped with a print head cleaning function that does this. s 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 fax. This test shows if each print head nozzle is operating properly. 1 Press [Function]. w Press [Cleaning]. 2 Use [3] or [4] to select NOZZLE CHECK. w Press [Start/Copy]. The fax prints the nozzle check pattern. 8 Nozzle check pattern If the pattern is broken or missing, clean the BJ cartridge print head (see p. 8-6). n Print the nozzle check pattern again after cleaning the BJ cartridge print head to check if cleaning corrected the problem. SOLUTIONS TO COMMON PROBLEMS 8-5

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8-5
8
SOLUTIONS TO COMMON PROBLEMS
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 fax 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 fax. This test shows if each print head nozzle is operating
properly.
1
Press [Function].
▼
Press [Cleaning].
2
Use [
3
] or [
4
] to select NOZZLE CHECK.
▼
Press [Start/Copy].
The fax prints the nozzle check pattern.
n
Print the nozzle check pattern again after cleaning the BJ cartridge print head to check if cleaning
corrected the problem.
Nozzle check pattern
If the pattern is broken
or missing, clean the
BJ cartridge print head
(see p. 8-6).