Abstract: A pressurization device for a toner cartridge includes an inner cover, an airbag and a sliding member. The inner cover is arranged at a toner feeding port of the toner cartridge; the airbag is made of elastic material; the airbag includes a fixed end that is fixed to the inner cover and a free end that extends outward from the fixed end; the fixed end is provided with an airbag opening interconnected to an interior of the toner cartridge; a remaining portion of the airbag is arranged as closed except for the airbag opening; a first end of the sliding member is connected to the free end of the airbag and moves toward the fixed end of the airbag back and forth, so that the airbag ejects gas into the toner cartridge by means of being compressed.

Abstract: A toner outlet structure includes: an outlet front cover communicating with a toner bottle containing toner, wherein the outlet front cover has a toner outlet; a toner lever rotatably arranged in the outlet front cover, wherein a plurality of blades are provided on the toner lever; and a toner outlet elastic sheet having a fixed end and a free end opposite to the fixed end, wherein the fixed end is fixed in the outlet front cover; the toner outlet elastic sheet extends in a circumferential direction of the toner lever, and extends into a circular track formed by rotation of the blades; wherein the blades rotate together with the toner lever to scrape the toner sent from the toner bottle to one side of the toner outlet elastic sheet; as the blades rotate, the blades contact and press the toner outlet elastic sheet.

Abstract: A toner outlet structure includes: an outlet front cover communicating with a toner bottle containing toner, wherein the outlet front cover has a toner outlet; a toner lever rotatably arranged in the outlet front cover, wherein a plurality of blades are provided on the toner lever; and a toner outlet elastic sheet having a fixed end and a free end opposite to the fixed end, wherein the fixed end is fixed in the outlet front cover; the toner outlet elastic sheet extends in a circumferential direction of the toner lever, and extends into a circular track formed by rotation of the blades; wherein the blades rotate together with the toner lever to scrape the toner sent from the toner bottle to one side of the toner outlet elastic sheet; as the blades rotate, the blades contact and press the toner outlet elastic sheet, in such a manner that the free end of the toner outlet elastic sheet is deformed along a centrifugal direction of edges of the blades; when the blades rotate to separate from the toner outlet elasti