A printed matter creating device includes a controller configured to: acquire print data; form a first print on a printing medium while conveying the printing medium, the first print being based on first ON dots in the acquired print data; interrupt the conveyance of the printing medium after forming the first print; cut the printing medium after interrupting the conveyance; and form a second print on the printing medium while conveying the printing medium after cutting the printing medium, the second print being based on second ON dots in the acquired print data. The print data includes a specific print data corresponding to a connecting part connecting the first print and the second print. Based on the acquired print data, the controller adjusts at least one of: aspects of the first ON dots in the specific print data; and aspects of the second ON dots in the specific print data.

In a device and a method for improving the print image uniformity, at least one print image is printed by a printer with at least one print bar that has at least one print head with a plurality of print nozzles. An image detector having a plurality of dot/image detection regions detects at least one value profile of measured inking intensities. A comparator compares the value profile with at least one reference value, and generates correction values dependent thereon.

The technique provided enables, when first ink is precured and second ink is ejected thereon, ensuring sufficient adhesion of the second ink via a primer. A printer includes a transport mechanism, a primer ejection head, a second light irradiator, a white-ink ejection head, a color-ink ejection head, and a controller. The controller controls the amount of primer ejected to a unit region of a continuous base material by the primer ejection head, the amount of white ink ejected thereto by the white-ink ejection head, and the amount of color ink ejected thereto by the color-ink ejection head. The controller determines a first primer amount based on the amount of white ink and determines a second primer amount based on the amount of color ink. The controller then determines an ultimate primer amount based on the sum of the first primer amount and the second primer amount.

An image forming apparatus includes a recording head that ejects inks of different colors on a recording medium to form an image based on image data, a storage device that stores a plurality of different dot patterns for flushing, and a control device that functions as: a controller that allows the recording head to make flushing; an image area detector that detects an image area in the image data; an overlapping dot counter that counts a number of overlapping dots for each of the plurality of dot patterns according to which flushing is to be made on the image area, the number of overlapping dots being a number of dots in the dot pattern of the ink ejected on the image area; and a dot pattern assignor that assigns, according to the number of overlapping dots, the respective dot patterns for use in flushing with the inks of different colors.

In a printing apparatus, in a first mode a head ejects a first type of liquid onto a printing medium and an energy applying device applies energy to the first type of liquid to form a background, and subsequently the head ejects a second type of liquid onto the background and the energy applying device applies energy to the second type of liquid on the background so that an image is formed on the background. In a second mode the head ejects the second type of liquid onto the printing medium without forming a background, and the energy applying device applies energy to the second type of liquid. The controller performs setting a quantity of the second type of liquid to be used in the first mode, to be greater than a quantity of the second type of liquid to be used in the second mode.

A droplet discharging head executes multi-path recording in which dot recording in one main scanning line is completed by n main scans when n is an integer of 2 or more. The droplet discharging head includes: a plurality of nozzles configured to discharge a liquid as droplets; a pressure chamber defining substrate defining a pressure chamber communicating with the nozzles; a piezoelectric element including a first electrode, a second electrode, and a piezoelectric layer containing a perovskite-type composite oxide containing K, Na, and Nb as a main component; and a vibration plate forming a part of a wall surface of the pressure chamber and configured to vibrate by driving of the piezoelectric element. The number of paths n in the multi-path recording, a piezoelectric constant d.sub.31 [m/v] of the piezoelectric element, and a ratio x of a Na molar fraction to a total value of a K molar fraction and the Na molar fraction in the piezoelectric layer satisfy a relationship represented by a formula (1).

There is provided a method for rendering an image according to selected image quality attributes. Two or more image quality attributes are selected from a plurality of attributes of the image. A set of pigments for an area of the image and a density for each pixel of the area are determined. A quantity of pretreatment for deposition onto a print target is determined, where the pretreatment quantity is dependent on the pigments, the density, and the selected image quality attributes.

A method of operating a printer extends the print zone of the printer by separating at least two printhead modules in the print zone by a distance that is greater than a width of a printhead module. The printhead modules are operated to print multiple color separations of an ink image and operates an optical sensors generates image data of the printed multiple color separations. The image data of the printed color separations are used to adjust distances between printhead modules in the print zone.

A printing system is disclosed. The printing system includes at least one physical memory device to store ink model estimation logic and one or more processors coupled with the at least one physical memory device to execute the ink model estimation logic to generate color space ink model parameter data for a print system based on an ink deposition data and color space measurement data for one of a plurality of inks for the print system.

A liquid discharge method for a liquid discharge apparatus having a plurality of print modes includes determining and changing. The determining determines the print modes by a determiner. The changing changes, based on the print mode determined by the determiner, a use nozzle width and a discharge amount of a spot color head in a line feed direction such that a print mode having a low print speed has a narrower nozzle width and a larger discharge amount than a print mode having a high print speed by a controller.