An ink chamber frame structure includes an ink chamber frame including a lower ink chamber frame component and an ink shield having a lower side connected to the lower ink chamber frame component and a front surface provided with an ink roller with left and right ends thereof corresponding to the left and right ends of the ink shield, two first ink stopper blocks placed on the front surface of the ink shield, and a lower scraper installed on the lower ink chamber frame component and incorporated with the ink shield, the ink stopper blocks and the ink roller to form an ink chamber. when the ink roller is in use, the ink accumulated in the ink chamber will only accumulate to the height of the two first ink stopper blocks, and will not accumulate to the entire ink chamber.