METHOD AND DEVICE FOR TRANSFERRING INFORMATION TO PRINTING HEAD Russian patent published in 2006 - IPC B41J2/05 

FIELD: engineering of jet printing devices.

SUBSTANCE: device contains jet printing head, having a set of electric contacts: address contacts and resolution contacts for unblocking drop generators 42, and excitation currents contacts for feeding excitation currents for enabling drop generators for selective discharge of ink from them. Generated in printing device are periodic signals of address (A(1-13)) and signals of resolution (E(1-2)) for contacts of address and resolution on printing head. Also, fed selectively from printing device are excitation currents (P(1-16)) to perform generation of images on print carrier. Each individual heating element 44 is controlled by excitation circuit, containing three field transistors 48,50,52. Under effect of first and second signals, E(1) and E(2), and address signal A(1), switching device 48 selectively switches on for letting current through heating element 44, in case if excitation current is received from excitation source P(1).

EFFECT: decreased number of contacts between printing head and printing device, high quality of printing due to provision of possible positioning of large amount of drop generators in printing heads.

4 cl, 11 dwg