Epson Stylus Pro 4000 Printer Manual page 99

Note: If you can't insert
the cartridge smoothly,
you may have the wrong
cartridge. Check the
package and product
code. If the B ink light
remains on after installing
the cartridge, it may not
be inserted fully.
Caution: Do not remove
and re-insert cartridges
more often than
necessary. Doing so can
compromise the needle
valve seal and allow air to
enter the ink tubes,
causing nozzle loss.
Maintaining and Transporting the Printer
7. Hold the cartridge with the arrow pointing toward the printer. Then
insert the cartridge into the slot. Don't force it in.
8. Lower the ink lever to its locked position.
9. If you're using 110 ml cartridges, close the ink compartment cover. If
you're using 220 ml cartridges, you'll have to leave the cover open.
Once the cartridges are installed, the printer returns to its
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state.
READY