Epson Stylus Photo 870 Daily Use page 48

6. Remove the new ink cartridge from its protective bag. Next,
remove only the yellow tape seal from the cartridge.
black ink cartridge (T007)
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Caution:
You must remove the yellow tape seal from the cartridge
before installing it; otherwise, the cartridge 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 blue portion of the tape seal from the
top of the cartridge; otherwise, the print head may
become clogged and be unable to print.
Do not remove the tape seal from the bottom of the
cartridge; otherwise, ink will leak.
Do not touch the green chip on the side of the cartridge;
otherwise, normal operation and printing may not be
possible.
color ink cartridge (T008)
Do not touch this part.