Hydraulic Head Ink Supply Apparatus

The patent divides a large ink supply system into multiple smaller ink containers arranged in series. Each container holds a manageable amount of ink (e.g., 1L or 2L), and they are connected to collectively provide the capacity of a much larger container. This segmentation allows operators to handle and replace individual small containers rather than struggling with a single heavy large container, while still achieving the required total ink supply capacity for long-hour printing operations.

The patent employs pneumatic pressure regulation by introducing pressurized air into the ink container system. The pressurized air applies pressure to the ink surface, regulating the ink supply pressure to the inkjet head. This pneumatic approach provides reliable pressure control while avoiding complex mechanical pressure regulation mechanisms, thereby reducing apparatus complexity and cost compared to alternative mechanical solutions.

The patent transitions from a single vertical stacking arrangement to a multi-dimensional series arrangement of ink containers. The containers are connected in series along a horizontal or inclined path rather than strictly vertically stacked. This dimensional change allows the system to maintain the hydraulic head differential for efficient ink supply while distributing the weight and installation burden across multiple lighter containers that can be positioned at different heights and locations, reducing operator strain during installation and replacement.

The patent segments the ink supply into multiple smaller replaceable containers connected in series. When one container is depleted, operators can easily replace only that single small container while leaving others in place. This segmentation dramatically improves replacement ease compared to replacing a single large container, as the smaller containers are lighter, easier to handle, and can be replaced individually without disturbing the entire ink supply system.