During lithographic printing, a measure of the amount of water present on the water receptive areas of the printing plate is obtained by determining the amount of water present on the surface of a monitoring zone. The monitoring zone comprises electrodes spaced by electrically insulating material and the amount of water present on the surface of the zone is determined by measuring the electrical resistance between the electrodes. The electrical resistance may be measured using a phase sensitive ...

A method and apparatus for transferring an image of predetermined length onto a substrate by selective energisation of a row of printing elements in a printhead of a printing apparatus. The printing apparatus may be arranged with a print ribbon located between the printhead and the substrate such that ink is selectively transferred from the ribbon to the substrate as a result of energisations of the printing elements. The image to be printed is rendered in memory as a series of rows of pixels an...

A printing member, especially a planographic printing member, comprising a first layer which includes a fibrous material, especially a cellulosic fibrous material or a ceramic fibrous material, and a binder, for example a resin or the like, is described. An image defining means is provided over the first layer.

A printing head device including movable elongate marker elements projectable against an anvil during striking of a selected character is disclosed. The device includes generally flat cross-section electromagnets disposed radially within a common section of a cylindrical body and each electromagnet has a movable low inertia armature for actuation of the marker elements. This arrangement improves the operating conditions of the printing head.

A printing method includes determining a first correction value corresponding to a first print mode, determining a second correction value corresponding to a second print mode, and correcting an ink ejection amount of each row region individually, using a combined correction value obtained by combining the first correction value and the second correction value. The first print mode is a print mode that is applied to a rear end area, with respect to a transport direction, of a medium. Dot rows ar...

In a printing apparatus and method, both high-speed and high-quality formation of images can be achieved. The apparatus has a full-line printhead that includes printhead chips. A plurality of printing element arrays are disposed in parallel on the same printhead chip, and a distribution ratio of print data is controlled so as to at least differ in an overlap area in which end portions of the printing element arrays overlap each other.

A printing method for printing an image on a medium according to the present invention includes the following steps: printing a correction pattern based on a first gradation value by ejecting ink from a plurality of nozzles moving in a predetermined movement direction and forming a plurality of dot lines in an intersecting direction that intersects the movement direction; obtaining, for each dot line, first information corresponding to the first gradation value by measuring a darkness of the cor...

A printing apparatus of the present invention is provided with a carry unit for carrying a medium in a carrying direction, and a print head that has a plurality of nozzle rows each made up of a plurality of nozzles for ejecting ink lined up in the carrying direction, and that moves in an intersecting direction intersecting the carrying direction. The print head includes a first nozzle row and a second nozzle row for a first color, and a first nozzle row and a second nozzle row for a second color...

A correction of density is effectively performed. The printing method includes the following steps. A step of performing correction of density for only a predetermined color, among a plurality of colors, for each dot row region so as to suppress the unevenness in density between rows of dots on a medium formed with the rows of dots arranged along a movement direction by each of the nozzles, when a plurality of the nozzles, that ejects a plurality of colors of different ink and that are arranged ...

Disclosed is a printing system suitable for use at photo studio(s) and permitting printing of color photograph(s) as desired by user(s). Client machine(s) 5A, 5B may acquire photo image(s) from digital camera(s) 6 and may carry out editing (retouching and/or print layout/design editing) of photo image(s). At the start of editing, working color profile(s) may be set for photo image(s) editing operations, and color matching may be carried out on photo image(s) using color profile(s) for digital ca...