B41J2/04535

Real time drop information measurement unit and real time discharging droplet compensating apparatus and method using the same

The present invention relates to real time discharging droplet compensating apparatus and method capable of compensating a discharging degree in real time by feeding-back drop information. To this end, the present invention provides a real time discharging droplet compensating apparatus which is configured by including a discharge control unit controlling the driving of an inkjet head; and a drop measurement unit provided below a substrate to measure drop information of a droplet to be discharged on the substrate and feed-back the measured drop information to the drop measurement unit, wherein the discharge control unit compensates a nozzle waveform of discharging the droplet by using the drop information. Therefore, according to the present invention, the position, size, and volume information of the drop are measured at the same time to be fed-back to the inkjet head unit in real time, thereby acquiring drop information without movement of a separate head unit.

IMAGE RECORDING APPARATUS, METHOD FOR IMAGE RECORDING, AND COMPUTER-READABLE STORAGE MEDIUM

An image recording apparatus, having a discharging head, a fan, and a controller, is provided. The discharging head includes a discharging surface and a plurality of nozzles arranged along a sub-scanning direction, which intersects orthogonally with a main scanning direction. The discharging head is configured to move in the main scanning direction. The fan is configured to generate an airflow for collecting mist of ink discharged through the nozzles. The controller is configured to obtain a droplet size of the ink to be discharged through the nozzles from one of a print job and a printing mode set in advance, obtain a distance between the discharging surface and a printable medium, and control a rotation speed of the fan based on the droplet size and the distance.

DELAY ELEMENTS FOR ACTIVATION SIGNALS

In some examples, a fluidic die includes a set of fluid actuators arranged in an order, and a controller to determine, based on input control information relating to controlling actuation of the plurality of fluid actuators, whether a first fluid actuator of the plurality of fluid actuators is to be actuated and whether a second fluid actuator within a specified proximity of the first fluid actuator in the order is to be actuated, and in response to determining that the first fluid actuator is to be actuated and the second fluid actuator within the specified proximity of the first fluid actuator in the order is not to be actuated, activate a delay element associated with the first fluid actuator, the delay element to delay an activation signal propagated to selected fluid actuators of the set of fluid actuators in response to an actuation event.

INHIBITING MEDIA DEFORMATION

A deposition module within a web press for inhibiting media deformation may include a fluid deposition device located on a side of a media, and a processing device to control the fluid deposition device to selectively apply a wetting agent to the media. The deposition of the wetting agent may be based on the location of content printed on the media as defined by print data.

APPARATUS FOR MANUFACTURING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE DISPLAY DEVICE
20210296375 · 2021-09-23 · ·

Provided are an apparatus for manufacturing a display device and a method of manufacturing the display device. The apparatus for manufacturing a display device includes a droplet discharge unit including a nozzle that discharges a droplet, at least one sensor that senses a partial shape of an outer surface of the droplet projected onto a plane and a cross-sectional shape of the droplet discharge unit projected onto the plane, the plane being on a falling path of the droplet discharged from the droplet discharge unit, and a controller that calculates, based on a result sensed by the at least one sensor, at least one of a volume of the droplet, a falling speed of the droplet, a discharge angle at which the droplet is discharged from the nozzle, and a falling path of the droplet moving from the nozzle to a substrate.

UNCALIBRATED INK DEPOSITION GENERATION MECHANISM
20210268794 · 2021-09-02 · ·

A system is disclosed. The system at least one physical memory device to store ink estimation logic and one or more processors coupled with the at least one physical memory device, to execute the ink estimation logic to receive calibrated ink deposition data, receive a first transfer function associated with a printing system, generate a first inverse transfer function based on the first transfer function and generate first uncalibrated ink deposition data based on the calibrated ink deposition data and the first inverse transfer function.

Image recording apparatus
11014371 · 2021-05-25 · ·

The image recording apparatus has a head, a tank, a case that receives a cartridge, and a controller. When the cartridge is installed in the case of the image recording apparatus, the liquid in the cartridge flows to the tank by a difference between a liquid level in the cartridge and a liquid level in the tank. The controller controls a display to display a first notification indicating an ink cartridge based on receiving a first signal output from a sensor when a liquid level in an ink chamber reached a specific position. The controller, after receiving the first signal from the sensor, counts a count value indicating an amount of discharged liquid from the head. Further, the controller, in response to the count value reaching a first threshold, controls the display to display a second notification.

Fluidic die with drop weight signals

A fluidic die includes an array of nozzles, each nozzle to eject a fluid drop in response to a corresponding actuation signal having an actuation value. Nozzle select logic provides for each nozzle a nozzle select signal having a select value or a non-select value. Actuation logic provides the respective actuation signal for each nozzle, the actuation logic to receive one or more drop weight signals, and for each nozzle select signal having the select value, to provide an actuation signal having an actuation value to the corresponding nozzle and/or to one or more neighboring nozzles based on a state of the one or more drop weight signals.

Method for printing an image using liquid ink

A method for printing an image with improved printing quality using liquid ink includes using a pump to pump ink to a print head for printing rows of the image onto a moving printing substrate. A respective value correlated with the amount of ink required to print the rows is calculated for a plurality of individual rows or a plurality of grouped rows of the image. The pump receives a preemptive control signal based on the calculated values.

POTENTIAL PRINTHEAD STRIKE DETERMINATION

According to examples, an apparatus may include a processor and a memory on which are stored machine readable instructions. The instructions, when executed by the processor, may cause the processor to access a property value respectively corresponding to each of a plurality of firing actuators in a printing system and determine a count of the firing actuators having property values that are outside of a predefined threshold value range. Based on the count exceeding a predefined maximum threshold value, the instructions may cause the processor to determine locations of the plurality of the firing actuators having property values that are outside of the predefined threshold value range, determine a standard deviation of the determined locations, and based on the determined standard deviation being below a predetermined threshold, output an indication concerning a potential printhead strike.