Epson 640 - Manual (Page 31)

28
Oahu
short.bk
Rev. C
A5 size KAUS.FM
11/4/98 Pass 2
L Proof Sign-off:
E.Otera
_______
N.Nomoto _______
K.Norum _______
The printer prints an operation check page including your
printer’s ROM version information, the ink counter code, and
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).
2. 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 30.
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 with the Head
Cleaning utility in the printer software, or from the printer itself
by using the printer’s control panel buttons.