Plotters are output devices used to obtain drawings with the help of a computer, in activities such as CAD / CAM. Unlike printer, the drawing can be done by returning the print head on paper and can use large format (A0, A1, etc.). Fields of application are: making technical drawings, maps, architectural projects, and so on.

To understand better how this device works you need to know first what an output device is. It is a device that converts information from the internal format of representation in the computer in an external format accessible to people – alphanumeric, graphic, image or sound.

The plotter is a device that automatically operates a mechanical system of writing tips. It works by making an image using a vector system that unites the points through a series of lines with the help of writing tips.

These devices are of two types: fixed (head drawing) and mobile (electrostatic).

The first version is also named INKJET PLOTTERS. This version is older and is the classic way: the tip is moved on the drawing surface paper similar with the movement of the pencil in a human hand. Drawing table is horizontal, and the paper is electro statically attached to it. While working, the design color may be changed.

The second version is also named LASER PLOTTERS. Nowadays they are becoming more widespread. They work with toner, similar to a laser printer or copier. Paper is carried vertically on a drum, while the head design is moving horizontally.

There are several important differences between these two categories listed above.

First one and the most important refer to the quality of printing. The second version on the device which is based on the concept of laser has a very good print quality (if you appreciate the artistic point of view), but the accuracy is lower than the one in the first type.

Secondly we can talk about the cost of such acquisitions. This is also a defining factor in choosing the type of plotter that we want to work with and meets our requirements.

If you want to buy a plotter this are the features that should interest you:

- Print technology

- Print width

- Resolution

- Print speed

- Delivery ink

- Memory

- Software

- Dimensions plotter

- Net weight

- Gross Weight

- Number of colors