Epson Stylus Photo 2000P Setup Manual page 12

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Caution:
.
5. Align the tabs on each ink cartridge so that they are resting on the
tabs protruding from the base of the opened ink cartridge clamps.
Do not apply excessive force to the cartridges.
You must remove the yellow tape seals from the cartridges
before installing them; otherwise, the cartridges will become
unusable and you will be unable to print.
If you have installed an ink cartridge without removing the
yellow tape seal, you must remove the cartridge and install a
new one. Prepare the new cartridge by removing the yellow tape
seal, then install it in the printer.
Do not remove the EPSON label from the cartridges; otherwise,
the cartridges may become clogged and unable to print.
Do not remove the tape seals from the bottom of the cartridges;
otherwise, ink will leak.
Do not remove the green IC chip from the side of the cartridge.
If you install ink cartridges without an IC chip, the printer may
be damaged.
Do not touch the green IC chip on the side of the cartridge.
Doing so may prevent normal operation and printing.
Do not touch this part.