Comparison Epson SureColor SC-P900 vs Epson SureColor SC-T3200

The paper size the plotter is designed to operate with. Most models use ISO 216 formats, identified by the letter A followed by a digit. These formats include the popular A4, but plotters usually work with larger paper:

• A0+. This marking means that the plotter is able to work with sheets larger than A0 (see below). The A0+ format itself provides a sheet width of 914 mm, however, in this case, support for wider media is usually provided — about 1100 mm (1050 – 1150 mm) in the most modest models of this format ( A0+ 44 ") and 1500 mm or more in the largest ( A0+ ≥ 60")
• A0. Paper of this format has a size of 1189x841 mm.
• A1. Paper size 841x594 mm — in other words, half of the A0 format.
• A2. A sheet of this format is approximately the size of a newspaper spread — 420x594 mm, half the size of A1. Considered relatively small by plotter standards.
• A3. The smallest format found in modern plotters: 297x420 mm, that is, only twice the standard A4 (in other words, with a magazine spread). Used in few desktop models (see Installation) — particularly, textile devices (see Product Type) for printing on T-shirts and other similarly sized clothes.

It is also worth noting that many models are able to work with other sizes. Moreover, we are talking not only about reduced, but also about la...rger options: the maximum media width (see below) often exceeds the standard paper size.

- Floor. Plotters designed for installation directly on the floor, on special stands; the availability of a stand for such a device is mandatory, because it carries various auxiliary equipment – particularly, a basket for completed prints. The floor models are predominantly advanced models, which are distinguished by their large weight and size. This option is convenient because the plotter does not require additional surfaces such as tables for installation. On the other hand, such a unit can create inconvenience in tight room where there is little free space on the floor. Also note that some floor models are not equipped with stands, they must be purchased separately.

- Desktop. Plotters designed to be placed on a table, workbench, or other similar stand. This installation is good in constrained conditions, because it does not require floor space. On the other hand, it imposes some restrictions on weight and dimensions, which is why desktop plotters are usually designed for relatively small paper sizes - A2, less often A1 (see above).

The highest image resolution the plotter is capable of printing on paper. It is indicated by the number of dots per inch horizontally and vertically — for example, 1440x720.

The higher the resolution, the smoother the printed image will be as a result, the less noticeable individual dots will be on it (to the point that they cannot be seen at all with the naked eye). On the other hand, the ability to print in such resolutions affects the price of the plotter accordingly. In addition, do not forget that high-quality printing requires appropriate source materials — the quality of the print cannot be higher than the quality of the original image.

Note that in this case we are talking about the maximum resolution; usually in the settings it is possible to set more modest parameters.

Approximate time taken by the plotter to print one sheet.

This indicates for the paper size that the machine was originally designed for (see "Paper Size"). And it is approximate because it is usually given for optimal or almost optimal printing conditions: low quality and resolution, relatively simple images, etc. So the actual print time of the sheet may differ from the claimed one in one direction or another, depending on the operating parameters — starting from the mentioned quality and resolution to the type of media. However, according to the figures indicated in the specs, it is quite possible to evaluate different models and compare them with each other: the difference in the claimed time, usually, will proportionally correspond to the difference in the actual printing speed.

It is also worth noting that this time is usually indicated by the duration of the printing process itself — from the capture of the sheet by the feeder to the output of the completed print from the device. Interruptions inevitably occur between printing individual sheets, so that the total printing time is longer than the printing time of a sheet multiplied by the number of sheets. For example, a device with a time consumption of 36 sec per sheet theoretically should print about 100 sheets per hour (1 h = 3600 s, 3600/36 = 100), but in fact such a plotter usually produces about 70 – 75 sheets in this time.

The smallest drop volume of ink that can be produced by the printhead of an inkjet or similar plotter (see "Product Type").

This parameter is directly related to the print resolution (see “Maximum resolution”): the more dots per inch, the smaller the separate dots and, accordingly, the drops should be. At the same time, models with the same dpi number may differ slightly in this parameter. In such cases, it should be assumed that a smaller droplet volume potentially provides better print quality, with more accurate reproduction of fine lines and borders between individual areas of the image, however, such features accordingly affect the price of the device.

Ability to print on paper or other rolled up media. Given the size of materials printed on plotters, it is much more convenient to use rolls than separate sheets. At the same time, such media require special equipment and appropriate configuration of the plotter's software. Therefore, if you plan to print from rolls, you should choose a model where this function is specified.

Note that theoretically this size is determined by the supported paper size, however, in fact, the maximum media width is often greater than that of the claimed one.

The smallest width of paper or other media that the plotter can handle. Such devices, by definition, are designed for large-format printing and are poorly suited for small media; therefore, if you plan to frequently print on sizes smaller than standard (see "Paper Size"), you should pay attention to this parameter and make sure that the selected plotter can work with all the necessary materials.

The largest width of paper or other media that the plotter can handle. The larger this parameter, the larger the materials that can be printed on the device; however, the dimensions, weight and cost of the plotter also increase markedly due to this.

The largest roll diameter that can be installed in a plotter with roll printing (see above). This parameter is useful primarily for the selection of media: the material of the same width can be produced in rolls of different diameters.