| 摘要 |
<p>Dry toner removable developing cartridge (1) of the disposable type, for electrophotographic printers, comprising a photoconductive drum (7), a donor sleeve (9) contacting the photoconductive drum (7) and partially housed in a developing tank (4) having a stirrer (10) for the developing material contained therein, the donor sleeve (9) conveying to the photoconductive drum (7) a predetermined amount of developing material, and a cylindrical reservoir (6), in communication with the development tank (4) through a peripheral arc and containing radial diaphragms supported by a rotatable control shaft (28), which diaphragms define in the cylindrical reservoir a plurality of compartments (A, B, C, D, E, F) in form of cylindrical sectors, filled with developing material, the sector being sequentially brought in communication with the developing tank (4) by rotation of the shaft (28) and sequentially feeding the developing tank (4) with developing material dropped from the compartments.</p> |
