Maintenance 9-3
The printer prints an operation check page that includes your 
printer’s ROM version information, the ink counter code, and a 
nozzle check pattern. Below are sample printouts.
Good sample
Print head needs to be cleaned
The above sample may be shown in black and white, but the actual test prints 
in color (CMYK).
If the nozzle check page does not print satisfactorily (for example, 
if any segment of the printed lines is missing), there is a problem 
with the printer. This could be a clogged ink nozzle or a 
misaligned print head. See the next section for details on cleaning 
the print head. For information on aligning the print head, see 
“Aligning the Print Head” on page 9-8.
Cleaning the Print Head
If you find that the printed image is unexpectedly faint or dots in 
the printed image are missing, you may be able to solve these 
problems by cleaning the print head, which ensures that the 
nozzles are delivering ink properly.
You can clean the print head from your computer using the Head 
Cleaning utility in the printer software, or from the printer itself 
by using the printer’s control panel buttons.
Segments are missing