Venting plug in toner cartridge

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 27/18 (2006.01) B41J 2/175 (2006.01) G03G 15/08 (2006.01)

Patent

CA 2225242

Hopper plug (143) vents out air pressure build-up which cause toner leaks. One side of the plug has a series of entrance openings (491) which communicate with the inside of the hopper (61). Air, potentially containing some toner particles, passes through those openings and enters a first chamber (507). The first chamber has exit holes (499) which do not face the entrance openings. Air passing through the exit holes of the first chamber enters a second chamber (509). The second chamber has exit holes (495) which are at the opposite end and do not face the entrance openings. Third chamber (511) of this labyrinth faces a mat toner filter (501) which leads to exit holes (503).

Bouchon de mise à l'air libre de trémie (143) rejetant la pression accumulée qui provoque des fuites de toner. Un des côtés du bouchon comporte une série d'ouvertures d'entrée (491) qui communiquent avec l'intérieur de la trémie (61). De l'air, pouvant contenir des particules de toner, passe à travers ces ouvertures et entre dans une première chambre (507). La première chambre comporte des orifices de sortie (499) qui ne sont pas vis-à-vis des ouvertures d'entrée. De l'air passant à travers les orifices de sortie de la première chambre entre dans une deuxième chambre (509). La deuxième chambre comporte des orifices de sortie (495) qui sont à l'extrémité opposée et ne sont pas vis-à-vis des orifices d'entrée. La troisième chambre de ce labyrinthe est vis à vis d'un filtre de toner (501) conduisant à des orifices de sortie (503).

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