Patent ID: 7986900

Claim:
A method of sealing a toner opening port of a printer cartridge, the toner opening port being defined by a printer cartridge portion, the toner opening port being accessible from a toner exit port, the toner exit port being configured to be covered by a toner exit port plug, the method comprising: a. providing a seal, the seal comprising: i. a seal frame comprising a first side and a second side, the second side being positioned opposite the first side; ii. a first pull tab attached to the first side, a portion of the first pull tab being configured to cover the toner opening port; iii. a heat sensitive adhesive in between the first side and the first pull tab; iv. a second pull tab attached to the second side, the second pull tab being attached to the second side by a pressure sensitive adhesive; b. inserting the seal through the toner exit port with the second pull tab folded back such that the second pull tab end is allowed to exit the toner exit port; c. removing the second pull tab from the seal; d. allowing the first pull tab to cover the toner opening port; e. covering the toner exit port with the toner exit port plug to prevent toner leakage around the toner exit port.