Epson IP-100 Setup And Direct Printing Manual page 77

The printer prints a nozzle check pattern. Here is a typical
printout:
The above sample is in black and white, but the actual test prints in color
(CMYK).
3. Press the P Power button to turn off the printer after it
finishes printing the nozzle check pattern.
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 5-10.
5-8
Maintenance and Transportation