To provide a printing system and a printing apparatus which can ensure high-speed, normal printing with small memory requirements even when lots of print commands are sent to a printer. The printing apparatus includes a print mode determination unit which judges whether intermediate-language data can fit in a page memory when print command data is converted in normal print mode and selects the normal print mode if the data can fit in, but selects compressed print mode if the data cannot fit in. ...

The present invention provides a printing method comprising a selecting method of selecting defective print elements to be corrected on the basis of, for example, the positional relationship among the defective print elements in a print head so that if there are a plurality of defective print elements such as non-ejection nozzles, not all pixels otherwise printed by the defective print elements are to be corrected but efficient corrections can be achieved on the basis of correlations with the li...

A printing attachment for a rotary printing press comprises first and second cooperating cylinders rotatably mounted on respective first and second shafts. The first shaft is supported by holding devices for movement by a power operated device and the second shaft is mounted on a frame. Each shaft has at each end a support member, such as an annular or disc-shaped member, which faces a respective support member on the other shaft. Each support member on the first shaft can be brought into contac...

A timing signal generator generates an ejection timing signal each time a printing paper travels a predetermined distance relative to a head, and a driving signal generator inputs a driving signal based on writing data to the head each time an ejection timing signal is generated. In the course of printing, when an interval between two continuous ejection timing signals is equal to or longer than twice a basic time period of input of driving signal which is fixed for a head, a non-ejection drivin...

A printing apparatus that can prevent unexpected operation of an element is to be achieved. The printing apparatus is provided with: a drive signal generating circuit that can generate a plurality of drive signals, an element to which the plurality of drive signals can be applied and that performs operation for ejecting ink according to the applied drive signals, and a prevention circuit for preventing the plurality of drive signals from being simultaneously applied to the element.

A printing apparatus executes printing by arranging plural printheads, each including a plurality of print elements in a direction of a print width so as to obtain the print width corresponding to a width of a printing medium and conveying the printing medium in a direction perpendicular to the direction of the print width. The printing positions of part of the print elements of a first printhead in the direction of the print width overlap with part of the print elements of a second printhead in...

A printer 1 has transportation paths for conveying media in two directions, that of a first transportation path P1 and that of a second transportation path P2 (or third transportation path P3) perpendicular to the first transportation path P1. With this printer 1 a single compact unit can be used for media processing by reading and printing the media, as well as for printing receipts and validation printing.

In printing onto a creased paper with a fold portion, a printing method of the invention performs a warning step (S203) that gives a warning about the need of smoothening out of the fold portion; and a printing step that starts printing after the warning is given in the warning step. The printing method further performs a reception step (S204, S206) that receives a confirmation instruction with respect to the warning given in the warning step, and the printing step does not start printing until ...

A printing method includes: at a certain timing, controlling a first drive element so that a dot can be formed for each pixel with a first number of gradations, and controlling a second drive element so that a dot can be formed for each pixel with a second number of gradations that is lower than the first number of gradations, the first drive element being driven to form a dot by ejecting an ink of a first color from a nozzle, and the second drive element being driven to form a dot by ejecting a...

A printing apparatus generates print data with a priority given to a processing speed over a quality of images, even without explicit instructions, when printing images which do not require a high quality. The printing apparatus includes a priority decision unit for deciding whether to prioritize a speed of processing the image data or a quality of the images at the time of printing, based on print content description data including information on layout instructions for printing the images. The...