Print Controller

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September 21st, 2009 admin Leave a comment Go to comments

Print Controller

Digital printing process, quality control (I) - Digital printing, quality printing - printing industry

As well as today's CTP and digital printing, printing industry has undergone a continuous process of change. However, no matter how the printing industry changes, people's attention is none other than the transmission and reproduction of graphic information. Therefore, graphic and text information to evaluate the quality of reproduction and use of effective means of quality testing and control, has always been extremely important. Then, when the printing industry from the DTP, CTP to all-digital network production process, how should we carry out quality inspection and control? This article will discuss the issue. The main print production process Twentieth century, the rise of the DTP 7 80's technology enables the printing plate technology has greatly changed. DTP is the beginning word processing system mainly to solve the prepress part of the process; to the early 90s, the printing industry into a more mature stage of color desktop publishing, desktop publishing in this period has gradually developed into a process process. CTP is the output of digital prepress an extended form. With the CTP plate prices continue to fall and the related technology continues to mature, to the mid-90s, CTP system has entered a practical stage. "Digital printing" is essentially the digital pre-press to printing, after printing an extension. For digital printing, there are currently no unified view. Broadly speaking, the so-called digital printing, is stored in the computer in the text, images and other data in digital form with a recorded media, then transfer this information to the media, then the printing substrates. Currently, digital printing can be divided into two ways. First, the complete elimination of printing plates, electronic imaging, or ink-jet technology directly imaging the full significance of the media digital printing, such as HPIndigo and Xeikon digital presses introduced; The other half with the printed version of the digital presses, such as the Heidelberg DI (Digital Imaging System) printing press. The latter could be summarized as in the machine CTP. Different degree according to digital, the existing printing technologies can be classified into the following four means of workflow. 1.CTF process: DTP CTF traditional press printing
2.CTP process: DTP CTP (computer to plate off) traditional press printing
3. Semi-digital printing process: DTP semi-digital printing (computer to plate in the machine) print
4. All-digital printing process: DTP print digital presses we have the first CTF process known as the traditional printing process, the digital process known as the back three. Printing quality control elements and control tools
Print print quality is the combined effect of a variety of exterior features. Replication technology from the perspective of print quality should be a "faithful reproduction of the original" as the standard, whether in traditional or digital printing process flow should be achieved on the faithful to the original printed copy. For printing there are four control elements: color, level, clarity, consistency. 1. Color is the basis of product quality, product quality directly determines the advantages and disadvantages. Color printing control or management is always a hot research and analysis professionals and key technology. 2. The level tone that the color shades of the image recognizable changes in steps. It is the foundation to achieve accurate color reproduction. 3. Definition refers to the clarity of image detail, including the three aspects, the clarity of the image subtle level, the clarity of the image contour edges and the clarity of image detail. 4. Consistency is uniform, which includes two aspects. On the one hand refer to the same batch of printed ink in different parts of that area of ink of different degree of consistency, the general field with vertical and horizontal print density to measure the degree of consistency, it reflects the same time, print out the stability of different parts of printed matter.
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How does a network printer work?

I have a few questions.

Can anyone please tell me the print path ( I mean how does the print process happen starting from the application till page) for a network printer, be it wired or wireless.

My second question would be how to install a printer on network with a basic driver for windows vista?

Is it necessary for every printer to have a USB printing support entry under Universal Serial Bus controllers?

If you know then please provide me any websites name that tells me everything about wireless and network printing.

Thank you.

User gives print command to application
Application gives specific print command to windows
Windows sends print job to driver, that recodes data to suit printers needs
On a network, driver routes the data to networked printer via it's IP address, or if using Novell, via IPP print protocols.
If on a print server, data sent to print server, then forwarded to printer.