PRINTING MATERIAL CARTRIDGE AND PRINTING MATERIAL SUPPLY SYSTEM Russian patent published in 2017 - IPC B41J2/175 

FIELD: machine building.

SUBSTANCE: printing device has part for attachment of cartridges, including outputs unit, having device terminals arranged on its inclined surface, and printing material supply tube. Among device terminals one device earthing terminal, arranged in their center in Y direction, projects on higher height compared to other multiple device terminals. Printing material cartridge has printed-circuit board, printing material supply port and part for board mounting, which is inclined at acute angle relative to plane, extending from printing material supply port opening surface. Printed circuit board is arranged so, that cartridge one output on printed-circuit board comes in contact with device earthing terminal before other cartridge terminals in process of printing material cartridge attachment to cartridges attachment part. This design provides possibility to attach printing material cartridge, which is in proper correct orientation or aligned position, to printing device.

EFFECT: this design also reduces possibility of damage caused by high-voltage supply to printing material cartridge circuits.

10 cl, 30 dwg