Canon PIXMA iP3000 Series Quick Start Manual page 50

Printing Maintenance
4
Prepare a replacement tank.
(1) Unpack the new ink tank and pull off the orange tape.
(2) Remove the orange protective cap from the bottom of the ink tank and discard it.
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Be sure to remove the clear film from the ink tank in the exact
order shown in step 4-(1), as failure to follow this step may cause
the ink to leak and stain your clothes and hands.
Do not squeeze the side of ink tanks as this may cause the ink to
leak out and stain your clothes and hands.
Do not re-attach the protective cap once you have removed it.
Once the protective cap is removed, do not touch the open ink
port.
Ensure that all the orange tape has been peeled off along the
perforation. If there remains a part of the orange tape, ink may
not be ejected correctly.