4. Press the Line Feed switch to perform the
If printing problems persist, repeat the pumping
operation several times.
In some instances, air bubbles may develop in the
print nozzles. When this happens, you encounter
printing problems. Ink supply pumping normally
solves the problem. If ink supply pumping does
not remove the bubbles, do not operate the
printer for six hours, and then perform the ink
supply pumping operation again. If a printing
problem persists even after these actions, check
the ink cartridge. Refer to "Changing Ink
Cartridges" on page 3-34.
print verification again.
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