A memory circuit for a print component including a plurality of I/O pads, including an analog pad, to connect to a plurality of signal paths which communicate operating signals to the print component. A memory component stores memory values associated with the print component, and a control circuit, in response to a sequence of operating signals on the I/O pads representing a memory read, provides an analog signal to the analog pad to provide an analog electrical value at the analog pad representing stored memory values selected by the memory read.

A printing system is disclosed. The printing system includes at least one physical memory device to store ink model logic and one or more processors coupled with the at least one physical memory device to execute the ink model logic to generate first ink model parameter data for a first print medium based on first ink deposition data for a second print medium and first optical density measurement data for the first print medium.

Methods of performing a rotational and translational calibrations of a print control system of an inkjet printer system having an inkjet printhead assembly with one or more inkjet printheads are disclosed. Rotational calibration is performed by printing a first rotational calibration pattern from a first standoff distance and a second rotational calibration pattern from a second standoff distance on a first calibration object. The print control system is calibrated until the rotational calibration patterns are within a direction difference tolerance of each other. Translational calibration is performed by printing a first translation calibration pattern on a second calibration object, rotating the inkjet printhead assembly 180°, and printing a second translational calibration pattern on the second calibration object. The print control system is calibrated until the translational calibration patterns are within a direction difference tolerance of each other.

A print device is provided with a background head that discharges a background ink onto a recording medium, a color head that discharges a color ink onto the recording medium, and a CPU that controls the background head and the color head. The CPU of the print device divides the background ink into a plurality of layers including a first background layer and a second background layer, and discharges the background ink from the background head. A first discharge region of the first background layer is further to an inner side than a second discharge region of the second background layer.

A printing system is disclosed. The printing system includes at least one physical memory device to store ink model logic and one or more processors coupled with the at least one physical memory device to execute the ink model logic to generate first ink model parameter data for a first print medium based on first ink deposition data for a second print medium and first optical density measurement data for the first print medium.

An element substrate comprises a plurality of stages of shift registers that inputs and holds a serial data signal; a latch circuit that latches the serial data held by the shift registers; a decoder circuit that inputs an output of the latch circuit and outputs a selection signal for selecting a block of the print elements or the memory elements; and a mask circuit that masks the output of the selection signal for selecting the block of the memory elements from the decoder circuit in accordance with an input bit data signal. The block of the print elements or the memory elements includes a plurality of print elements or memory elements in which one element is selected in each of the plurality of groups.

In the technology of the present disclosure, multiple nozzles included in a printing head are stably driven while disparity in the usage frequency of each nozzle is suppressed. The dot counter scans the digital halftone data in the X direction and performs accumulation-counting on the pixel value Ixy (the number of printing dots) of each pixel for each address y with the accumulation counter CntCum(y). The signal value Gxy of the corresponding pixel address (x, y) is obtained from the division pattern memory unit. The nozzle selection unit selects the nozzle to be used for forming a printing dot, based on the counted values of the accumulation counter CntCum and the signal value Gxy of the division pattern. Then, the address n of the nozzle memory corresponding to the selected nozzle to form a printing dot is determined.

A method for regulating a deposition characteristic of a rendering material in a rendering apparatus includes determining a status of material deposition structure, and adjusting a physical attribute of the material deposition structure.

A compensation method and a device for nozzle abnormality, and a printer are provided. The method includes determining position information of an abnormal nozzle of an inkjet head (S100); acquiring printing parameters, determining first data corresponding to the abnormal nozzle, and based on the position information of the abnormal nozzle and the printing parameters, determining position information of a compensation nozzle for compensating the first data corresponding to the abnormal nozzle (S200); and based on the printing parameters, acquiring second data of the compensation nozzle in a normal printing state which includes ink out data and ink holding data, determining an address of the ink holding data, and generating compensation data by writing the first data into the address of the ink holding data (S300).

An inkjet printing apparatus includes a head that ejects ink toward a recording medium transported by a transport unit, and an ejection controller that causes the head to eject ink. The ejection controller is configured to perform process including: process of calculating a transport speed of the recording medium; process of generating reference timing of ejection of ink by the head; process of determining a target delay amount by which timing of ejection of ink by the head is delayed from the reference timing on the basis of a transport speed coinciding with the reference timing; process of updating a target delay amount, on the occurrence of change in the transport speed before the recording medium is transported by a distance corresponding to the target delay amount, the target delay amount being updated in response to the transport speed as changed; and process of delaying timing of ejection of ink by the head on the basis of the target delay amount as updated.