We apologize for the late response. Have you tried installing all of your cartridges? Did you happen to update your firmware for your printer recently? One way or another, we'll get this issue resolved for you promptly. Can you please email us with a number we can reach you at and your order number? Send this information to sales@CisInks.com
We appreciate your feedback on the video. I will add annotations to the video to suggest to take the tape off after the cartridges are installed. We have encountered the same leakage problem here, which we attempt to minimize by quickly flipping the cartridges over or by plugging up the air vent hole with our finger. These 'sponge-type' cartridges tend to have this leakage issue.