Control Codes

Control CodesA control code is a character that initiates a printer function, for exampleCarriage Return (CR), Line Feed (LF), Form Feed (FF), etc.Carriage Return (CR)A carriage return is a special code that moves the cursor (or print head) to the beginning of the current line. In the ASCII character set, […]

What is DTP?

In the age of computers, it is relatively simple to create documents and to produce professional printouts. Nevertheless, the results of the work with the computer clearly show the differences between specialists and amateurs. A few years ago, many specialists were involved in order to produce professional printouts: a graphic […]


In the era of several different media types, there is the need of multifunctional file types. The format which is suitable extremely well for this demand, is the Adobe Portable Document File (PDF) as one of the most flexible solutions.The biggest advantages of this kind of format are:• the small […]

About TCP/IP

TCP/IP has become an almost universal standard in network communications. Networks of all sizes, and in particular the Internet, depend upon TCP/IP protocols to enable communications between different segments and devices. Some examples of where TCP/IP is used: The Internet, which facilitatescommunications between computers all over the world, and access […]

Differences of DTPs to Word processors

While desktop publishing software still provides extensive features necessary for print publishing, modern word processors now have publishing capabilities beyond those of many older DTP applications, blurring the line between word processing and desktop publishing.In the early days of graphical user interfaces, DTP software was in a class of its […]

PCL5 or PCL6?

A comparison of PCL6 and PCL5 is given below: PCL6 Advantages: It has better WYSIWYG (what you see is what you get) printing, improved print quality, Tuer document fidelity. PCL6 is specially designed for graphics while gray-scale images, which are processed as objects, appear smooth and even, offering superior and […]

What is Port?

In computer and telecommunication devices, a port (noun) is generally a specific place for beingphysically connected to some other device, usually with a socket and plug of some kind. Typically, apersonal computer is provided with one or more serial ports and usually one parallel port. Types of Ports Parallel PortsAn […]

What is LAN

LAN stands for local area network. It is a group of two or more workstaions that share a common communication line within a small defined area. LANs are typically used in the home, office or on one or more floors of a building. They have the flexibility to connect as […]

Manufacturer Specific Printer Language

I have described some details of HP PCL and Adobe Postscript. There are other languages which individual printer manufactur use. In some cases the manufacturers provide their own language to use with the printer. Manufacturer also wish to have their language adopted as the industry standard, but in the real […]

PJL Commands

Printer Job Language (PJL) was developed by Hewlett-Packard to provide a method for switching printer languages at the job level, and for status readback between the printer and the host computer. PJL adds job level controls, such as printer language switching, job separation, environment, status readback, device attendance and file […]