
12-10
Maintenance
Chapter 12
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 MultiPASS 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 MultiPASS. This test shows if each
print head nozzle is operating properly.
Refer to the flow chart (
1
p. 12-8) for the correct order of testing and cleaning the BJ
cartridge print head.
Follow this procedure to print the nozzle check pattern:
1
Press .
2
Press .
3
Press .
• The MultiPASS prints the nozzle check pattern.
When the Color BJ cartridge is installed, the pattern includes all four colors; yellow,
magenta, cyan, and black. In the color pattern you will notice that lines are missing
between the colors. This is normal.
n
Print the nozzle check pattern again after cleaning the BJ cartridge print head to check if
cleaning corrected the problem.
24
24
24
64
24
24
24
24
YELLOW
MAGENTA
CYAN
BLACK
Nozzle Check Pattern
If the pattern is broken, missing,
or a specific color is not printed,
(
1
Cleaning the BJ Cartridge
Print Head, p. 12-11).
Set
NOZZLE CHECK
10
Cleaning
Function