Wet-type electrophotographic image forming apparatus and a setting method thereof

A wet-type electrophotographic image forming apparatus, comprising:

• a main body;
• a developing unit disposed inside the main body;
• a developer cartridge for providing developer to and collecting developer from the developing unit;
• and
• a fitting unit for connecting the developer cartridge with the developing unit, the fitting unit including, a first fitting part disposed in the main body, a second fitting part disposed in the developer cartridge, and a third fitting part disposed in the developing unit;
• wherein the fitting unit is connected and disconnected by raising and lowering either the second fitting part or the third fitting part;
• and
• the first fitting part is a male fitting part fixed in the main body, the second fitting part is a first female fitting part disposed inside the developer cartridge, the third fitting part is a second female fitting part disposed inside the developing unit, and the first and second female fitting parts are detachably connected to the male fitting part.

A method for setting up a wet-type electrophotographic image forming apparatus including a developing unit, a developer cartridge, and a fitting unit for connecting the developing unit with the developer cartridge, the fitting unit including a male fitting part disposed in a main body of the image forming apparatus and first and second female fitting parts being disposed inside the developer cartridge and the developing unit, respectively, and connected to the male fitting part, the method comprising the steps of:

• (a) maneuvering a lever formed on the first female fitting part;
• (b) raising the first female fitting part;
• and
• (c) connecting the male fitting part and the first and the second female fitting parts of the fitting unit with each other by the raising of the first female fitting part.

A fitting unit for connecting a developer cartridge to a developing unit in a wet-type electrophotographic image forming apparatus, comprising:

• a first fitting part disposed in a main body of the image forming apparatus;
• a second fitting part disposed in the developer cartridge;
• and
• a third fitting part disposed in the developing unit;
• wherein the second fitting part and the third fitting part are connected and disconnected with the first fitting part by raising and lowering either the second fitting part or the third fitting part.

A fitting unit for connecting a developer cartridge to a developing unit in a wet-type electrophotographic image forming apparatus, comprising:

• a first fitting part disposed in a main body of the image forming apparatus,
• a second fitting part disposed in the developer cartridge, and
• a third fitting part disposed in the developing unit;
• wherein the fitting unit is connected and disconnected by raising and lowering either the second fitting part or the third fitting part;
• the first fitting part is a male fitting part fixed in the main body;
• the second fitting part is a first female fitting part disposed inside the developer cartridge;
• and
• the third fitting part is a second female fitting part disposed inside the developing unit.