| 摘要 |
A toner supply device for supplying a toner to a developing apparatus of an electrophotographic copier or similar image recorder is implemented by a cylindrical toner tank mounted on the apparatus and a toner cartridge filled with a toner and removably loaded in the toner tank. A hook-like yieldable stop is fitted on the toner tank, while lugs having contiguous inclined surface are provided on the toner cartridge for urging the stop when the cartridge is inserted into the tank. The stop and lugs allow only a toner cartridge of exclusive kind associated with the image recorder to be inserted into the toner tank.
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