Ink jet printer circulation ink feed mechanism

The utility model discloses an ink jet printer circulation ink feed mechanism, it comprises its characterized in that confession ink pump, a ink horn, a ink horn level control apparatus, time ink pump, B ink horn, B ink horn level sensor, negative -pressure control device, heating device, has formed the A ink horn, has returned the one -way black water circulating loop between ink pump, B ink horn, ink -jet printhead, the A ink horn, and ink pump 0 is reliable, can be used to the printing occasion that high -speed two -dimensional code, many PASS sweep type printer etc. Need the ink heating. 本实用新型公开种喷墨打印机循环供墨装置，其特征在于它由供墨泵、A墨盒、A墨盒液位控制装置、回墨泵、B墨盒、B墨盒液位传感器、负压控制装置、加热装置组成，形成了A墨盒、回墨泵、B墨盒、喷墨打印头、A墨盒之间的单向墨水循环回路，结构简单可靠，可用于高速二维码、多PASS扫描型打印机等需要墨水加热的打印场合。