DEVELOPER CARTRIDGE Russian patent published in 2015 - IPC G03G15/08 

FIELD: printing.

SUBSTANCE: invention relates to a developer cartridge intended for use in image forming devices such as laser printers. The inventive developer cartridge (30) comprises a housing (36) having a first side wall (69R) and a second side wall (69L) opposite the first side wall (69R); a developing roller (38) located between the first side wall (69R) and the second side wall (69L), at that the developing roller (38) is made with the ability to transfer the developing agent in it and rotating around a first axis line (X1); an electrode (117) located on the first side wall (69R) and comprising an end part (119) extending in a direction from the first side wall (69R), for contact with the feeding element (131) of the image forming device (1), at that the electrode (117) is electrically connected to the developing roller (38), and a driven connecting part (94) located on the second side wall (69L), at that the driven connecting part (94) is made with the ability of connection with the driving connecting part (200) of the image forming device (1) and is made with the ability of rotation about the second axis line (X2) when receiving the driving force from the driving connecting part (200), at that the second axis line (X2) is parallel to the first axis line (X1) and is located at a predetermined distance from the first axis line (X1), and the outer peripheral surface of the driven connecting part (94) forms a protruding plane which protrudes in the direction of the second axis line (X2) to the electrode (117), at that at least the end part (119) of the electrode (117) is located in contact with the feeding element (131) within the protruding plane.

EFFECT: providing a developer cartridge which carries out stable feeding and supplies stably the power to the shaft of the developing roller, even when the driving force is transferred directly from the driving connecting part of the image forming device to the driven connecting part of the developer cartridge, and to ensure stable power supply to the shaft of the developing roller, as well as providing high-quality output image.

15 cl, 25 dwg