DEVICE TO APPLY BAR CODES ON PAPER MEDIUM Russian patent published in 1997 - IPC

FIELD: trade. SUBSTANCE: device to apply bar codes on paper medium includes printing drum and set of inking, supporting and distributor rollers touching drum with their surfaces, synchronization unit, driving electric motor with belt transmissions, unit of striking hammers, coil with paper tape, paper tape pulling mechanism, control unit and power supply unit. Bar code rule made from elastic materials with high paint wettability is put and fixed on drum. Viscous printing ink is used in the capacity of this paint. Device is additionally inserted with feed roller, unit to feed printing ink with inclined vessel (slot between edge of vessel and feed roller is adjustable), unit with vessel for drain of printing ink under feed roller with controlled slot between its edge and feed roller. Shaft of electric motor carries gear wheel and driven gear wheel is put on axle of distributor roller. EFFECT: enhanced quality and expanded range of sizes of printed bar codes. 2 cl, 13 dwg