A printing apparatus divides printing elements of a printhead into blocks, time-divisionally drives the printing elements, and prints a halftone image on a printing medium in accordance with a result obtained by performing digital-halftoning for input multi-valued image data in each matrix of a predetermined size. The apparatus includes a scanner for reciprocally scanning the printhead, a conveyor for conveying the printing medium in a direction different from a scanning direction of the printhe...

The invention relates to a printing method that repeats in alternation a carrying operation of carrying a medium in a carrying direction, and a formation operation of forming an image on the medium by ejecting ink from a plurality of nozzles that are aligned in the carrying direction and that move in a movement direction. In this method: (a) a first blank section arranged along the movement direction is detected from an image to be printed in a certain formation operation; (b) a second blank sec...

Provided is a printing method and the like in which the copying time can be shortened. A printing method for printing a print image on a medium comprises: a step of storing, in a memory area, image data that has been generated by reading an image in an original; a step of determining whether or not the whole image data corresponding to the print image can be stored, in terms of size, in the memory area; and a step of performing printing up to a preset number of sheets based on the image data in ...

In a conventional printing apparatus with a plurality of paper feed ports, since a paper type limits the paper feed port usable for paper feed, a user must know in advance a paper feed port to set a paper sheet. This arrangement is not user-friendly. A printing apparatus according to the present invention, however, holds table information indicating the correspondence between paper types and paper feed ports usable for paper feed. When a paper type is designated together with input print data, i...

A printing apparatus includes a head having a plurality of ink discharging portions provided in a juxtaposed linear relationship. A discharging direction of an ink droplet to be discharged from each ink discharging portion can be deflected in a plurality of directions. A printing resolution is determined in response to print data from among a plurality of printing resolutions, and the ink discharging portion from which an ink droplet is to be discharged are selected based on the determined print...

Printing inks for the production of auxiliary carriers for transfer printing on acid-modified textile fiber materials, characterized in that they contain at least A. as a dyestuff intermediate, a carbinol base of cationic dyestuffs, which can be sublimed at 160-240.degree. C, of the formula ##EQU1## wherein A, B and D represent an aryl or heteryl radical, B can also denote hydrogen or can, conjointly with A, form the remaining members of a heterocyclic ring system, E represents a direct bond or ...

The invention relates to aqueous printing inks for the production of printed temporary supports, for transfer printing, by the film printing or screen printing process. The inks contain a sublimable disperse dyestuff, a binder, a filler and a thickener. The binder/filler weight ratio of the inks is 1 : 2 to 1 : 8, preferably 1 : 6 to 1 : 7.

The invention relates to a printing plate for offset printing comprising a number of printing patterns, having similar outer contours, which are located on the printing plate parallel to one another and adjoining one another but displaced in longitudinal direction in relation to one another. The printing plate is made in one piece with a width which corresponds with the combined width of the individual printing patterns and the printing plate is provided along its front edge and its rear edge wi...

A printing cylinder for printing machines comprising a shaft, a sleeve adapted to support a printing block and mounted on the shaft with radial clearance, and an adjusting mechanism provided at each end of the sleeve. Each adjusting mechanism comprises a guide ring and a clamping ring having cooperating conical guide surfaces. A fit between the shaft and the guide ring is so easy that the guide ring may be somewhat tilted relative to a plane at right angles to the longitudinal axis of the shaft,...

Printing inks for the production of auxiliary carriers for transfer printing on acid-modified textile fiber materials, characterized in that they contain at least (a) as a dyestuff intermediate, a carbinol base of cationic dyestuffs, which can be sublimed at 160.degree.-240.degree. C, of the formula ##STR1## (b) a practically anhydrous neutral organic solvent and (C) A NEUTRAL RESIN WHICH IS SOLUBLE IN THIS SOLVENT.