| 摘要 |
A toner hopper seal insert incorporating a tear strip for refilled toner cartridge used in printers and copying machines comprises (a) a length of tape (2) which has uni-directional fibres orientated along the longitudinal axis of the tape, (b) a narrower strip of material (1) which is laminated onto the surface of this tape, which extends beyond the length of the tape and acts as a tear strip, (c) a semi-rigid die cut plastic substrate (4) onto which one face has an adhesive (3) so that the wide tape to be bonded to the substrate, the substrate having an apertured (7) covered by the tear strip and being positioned slightly off-centre according to the horizontal axis of the substrate and (a) a 'U' shaped length of adhesive (5) laminated to the narrower edge by the substrate (4). When the tear strip (1) is pulled, it will cause a length of tape to be torn from the surface and expose the aperture (7) in the substrate. The lower adhesive 'U' section (5) will ensure that the seal is bonded to the cartridge preventing the seal to lift off from the surface of the cartridge hopper. Also the seal is mechanically retained by locating the widest edge (6) of the substrate into a groove in the hopper opening. <IMAGE> |
