FLUID FEED UNIT Russian patent published in 2018 - IPC B41J2/175 

FIELD: computer devices.

SUBSTANCE: technology is offered for improving the connection of the fluid supply unit to the liquid ejection device. First ink cartridge and the second ink cartridge are connected to the carriage of the printing device through the holder structure. Each of the first and second ink cartridges includes a printed circuit board having a plurality of pin terminals, which are electrically connected to the terminal block on the device side provided on the holder structure. Each of the first and second ink cartridges also includes a main engaging portion, which is adapted to engage the lever-type element of the holder structure as an engaging portion so as to limit the movement of the printed circuit board in a direction away from the structure of the holder. Printed circuit board includes a first contact terminal and a second terminal, disposed at respective ends in the direction of an ordered arrangement of the terminal leads. Main engaging portion has a width greater than the spacing between the contact portions of the first and second terminals in the direction of the ordered arrangement of the terminal leads.

EFFECT: proposed solution improves the connection of the ink cartridge to the carriage.

14 cl, 27 dwg