B41J2/16508

Pressure control system for print head
11701894 · 2023-07-18 · ·

A pressure controlling system for an inkjet printer includes a pressure chamber, a pump fluidically connected to the chamber and adapted for increasing or decreasing the pressure within the pressure chamber, a controllable three port two way valve, and a sensing unit including one or more pressure sensors. The pressure sensing unit is in fluidic communication with the pressure chamber for sensing the pressure therein. The valve has a first port controllably fluidically connectable to the pressure chamber, a second port controllably fluidically connectable to an inkjet print head, and a third port controllably fluidically connectable with atmospheric air. The sensing unit is adapted for sending signals representative of the pressure within the pressure chamber to at least one processor/controller. The pump and the valve are controlled by receiving control signals from the processor/controller(s). There are provided a method for operating the system and a printer including the system.

INKJET PRINTING DEVICE
20230211609 · 2023-07-06 ·

The present application provides an inkjet printing device, which includes a print head, a first container, a first pipeline, and a first valve. The print head is configured to discharge printing material. The first container is configured to store a solvent for cleaning the print head. An input end of the first pipeline is in communication with the first container, and an output end of the first pipeline is in communication with the print head. The first valve is provided on the first pipeline.

CAPPING STATIONS WITH POSITIONING MECHANISMS

Examples relate to capping stations having caps with positioning mechanism. The capping station for a printing system may comprise a cap to seal a printhead and a positioning mechanism to move the cap between a first cap position and a second cap position.

Printing apparatus with modular printhead system

A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain. Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

Inkjet recording apparatus

Provided is an inkjet recording apparatus that performs inkjet recording on a recording medium in a recording region. The inkjet recording apparatus includes a recording head that includes an ejection port surface where an ejection port for ejecting ink is provided, is the recording head being movable within a range including the recording region and a non-recording region where the recording is not performed, a cap capable of letting the ejection port in a capping state in the non-recording region, a blade that is placed between the recording region and the cap in a moving direction of the recording head, the blade being capable of wiping the ejection port of the recording head as the recording head moves from the non-recording region to the recording region, a blade moving unit capable of moving the blade up and down, and a control unit that controls the blade moving unit.

PRINTING APPARATUS, STAND AND MOVEMENT CONTROL METHOD
20230001693 · 2023-01-05 · ·

A printing apparatus includes a body, a print head, a mover, a stand and a sensor. The body has an opening that faces a printing target during printing. The print head is provided in the body and performs the printing on the printing target. The mover is provided in the body and moves the print head to a first position and a second position. The first position corresponds to the opening, and the second position is different from the first position. The stand is detachable from the body. The sensor at least senses that a distance between the body and the stand is equal to or shorter than a predetermined distance. The mover moves the print head from the second position to the first position in response to the sensor sensing that the distance between the body and the stand is equal to or shorter than the predetermined distance.

LIQUID EJECTION DEVICE

A liquid ejection device includes a head having a nozzle, an element causing the nozzle to eject liquid, a reservoir configured to store the liquid to be supplied to the nozzle, and a controller. The controller is configured to change a drive signal to drive the element based on a quantity of the liquid stored in the reservoir.

INKJET PRINTER
20230001694 · 2023-01-05 ·

A printer includes an ink head including a nozzle, a damper connected with the ink head, a pressure sensor to detect a damper pressure in the damper, a cap attachable to the ink head so as to cover the nozzle, an upward/downward moving mechanism to move the cap upward and downward with respect to the ink head, a suction pump connected with the cap, and a controller. The controller is configured or programmed to include a suction controller to execute a suction process to drive the suction pump in a state where the cap is attached to the ink head, a pressure acquisition controller to acquire the damper pressure from the pressure sensor during the suction process, and an upward/downward movement controller to control the cap to move upward toward the ink head when a change amount of the damper pressure is no larger than a reference change amount.

CAP AND INKJET PRINTER INCLUDING THE SAME
20220402271 · 2022-12-22 ·

A cap includes a holder and a body fitted into the holder. The body covers a nozzle surface such that an enclosed space is defined between the body and the nozzle surface. The holder includes a first side wall extending upward from a first bottom wall and having a frame shape in a plan view, and a protrusion on an inner surface of the first side wall and extending in an up-down direction. The body includes a second side wall extending upward from a second bottom wall and having a frame shape in the plan view, a lip on an upper end of the second side wall and contactable with the nozzle surface, and a recessed groove in an outer surface of the second side wall, extending in the up-down direction, and in engagement with the protrusion.

Liquid ejecting apparatus and controlling method for the same

There is provided a liquid ejecting apparatus including: a head having a nozzle; a carriage; a receiver; and a controller. The controller is configured to execute: a first flushing processing; a second flushing processing including at least one of a discharge flushing driving and a non-discharge flushing driving of driving; and a printing processing. The first flushing processing is executed in a case that a first count value is not less than a first threshold value, the first count value being an elapsed time since a completion of the first flushing processing. The second flushing processing is executed in a case that a second count value is not less than a second threshold value, the second count value being an elapsed time since a completion of the printing processing.