E-Tech STYLUS Pro WT7900 - Manual (Page 85)

85
Maintaining and Transporting the Printer | 85
Run the power cleaning only if the normal cleaning process is not sufficient
to clear the nozzles. The power cycle uses a large quantity of ink, so it is
recommended only as a last resort. To use power cleaning, the cartridges
need to be at least 50% full; replace a low cartridge if necessary. After
cleaning, you can reinsert the old cartridge.
1. Print a nozzle check pattern to make sure the print head needs cleaning,
as described on page 86.
2. Make sure the printer is ready and the B ink Check light on the printer’s
control panel is not on or flashing.
3. Press the cleaning button on the control panel.
4. Press u or d to select one of the following:
• NORMAL CLEANING— Press OK to start the cleaning cycle.
• CLEAN COLOR PAIRS— Press OK , select the color pair you want
to clean, then press OK to start the cleaning cycle.
• POWER CLEANING— Press OK to start the cleaning cycle.
5. When cleaning is finished and the P power light stops flashing, print
the nozzle check again to confirm that the head is clean.
For effective cleaning, always run a nozzle check between cycles.
If the nozzle check pattern is still missing segments or has deflections,
you can run a normal cleaning cycle up to three times. If that doesn’t
work, try running a power cleaning cycle. If necessary, turn the printer
off and leave it overnight to dissolve any dried ink, then clean the print
head again the following morning with a normal cleaning cycle.
If you continue to detect a problem with the white ink nozzles, perform
a white ink refresh as described on page 86.
If you still see no improvement, contact Epson for assistance.
Caution: Don’t run a
cleaning cycle while
thick media is loaded in
the printer.
Note: You must use at
least a 10
×
eye loupe to
examine the nozzle check
pattern for deflected
nozzles.
If a single nozzle in one
color remains clogged,
use SS Cleaning (see
page 93).