The invention discloses a protective toner
cartridge device for a printer and a detection
system of the protective toner
cartridge device, and relates to the field of toner
cartridge devices.The protective toner
cartridge device comprises a toner cartridge body, a photosensitive drum, a
powder adding mechanism and a waste
discharge port, a
powder cavity is formed in the toner cartridge body, the photosensitive drum is rotationally connected to the front face of the toner cartridge body, and the
powder adding mechanism is located on the side of the toner cartridge body; the powder adding mechanism is used for performing powder falling prevention protection on powder added into the powder cavity, the waste
discharge port is formed in the top of the toner cartridge main body, a waste
discharge port plug is connected into the waste discharge port in a sliding and penetrating manner, and the toner cartridge further comprises a positioning mechanism. By means of the arrangement mode that the powder adding base, the connecting ring, the telescopic
pipe, the folding cylinder, the
butt joint cylinder, the sealing plug and the connecting piece are matched, the telescopic
pipe enables carbon powder to fall into the powder cavity through the interior of the telescopic
pipe, the
butt joint cylinder is connected with the carbon powder container in a sleeved mode, the sealing plug protects the interior of the
butt joint cylinder, and therefore when the carbon powder is added, the carbon powder is prevented from falling into the powder cavity. And anti-flying protection is carried out on the carbon powder, so that the surrounding environment is conveniently protected.