Deploye printer – Wikipedia, Free Encyclopedia

Samsung SPP-2040 sublimation printer

Deploye printer the sublimation – Printer type using heat to transfer dye to a specific printing medium.

At the beginning, the name of this printer was referred to as “the depot”, because it was believed that the dye was moving from the permanent to gas, bypassing the liquid state. As it turned out later, this understanding of the processes took place incorrect. From that moment, this process is sometimes referred to as dye diffusion, but despite this, the name of the printer has not been changed ^[first] .

The dyes are placed on a special, usually three -colored ribbon (Cyan, Magenta, Yellow), often with an additional waterproof layer and protecting against UV radiation (overcoating), in the CMYO system. In cases where there is a need to print text or bar codes, an additional color (black) is used in the Ymcko system.

In most well -known depression printers, each color is applied separately, the dye is stored on a polyester ribbon in such a way that each color is placed on a separate panel. Each such colorful panel has the size of a medium on which the printout will be made.

During the printing roller printing cycle, they move the carrier with one of the colorful panels under the printing head, which usually has the same width as the shorter side of the printed medium. Small heating elements of the head react very quickly to temperature changes, applying different amounts of dye depending on the amount of heat given. After switching to the gas state, the dye differs to the printing carrier and solidifies. After covering the carrier with one color, the ribbon is turned on to the next color panel and partly pull the carrier out of the printer to prepare for the next cycle. The whole process is repeated four or five times depending on the amount of color layers applied. The first three applied colors (CMY) form a complete image; Then, depending on the need, the process of applying black (K) can be performed, and finally the last layer (O) creates a laminate on top. This layer protects the dyes against degradation or resubulimation in the case of gripping with your hands or exposing the printout to an elevated temperature.

The main advantage of this type of printing is the high, photographic image quality, in many respects better than inkjet prints. The method of applying the dye causes that the raster structure of the printout is practically not visible, it is also possible to precisely control the shade of each point of the image by changing the temperature and duration of the transfer, which allows you to get a real 24-bit color depth for each pixel. Typical resolution of the depressed printers – 300 dpi – is usually compared to inkjet printers with a resolution of approx. 4,800 dpi.

Another feature, giving printouts of the MEPMOVIATION, the advantage of inkjetic is their durability. The dyes used in typical inkjet printers fade under the influence of UV radiation and chemical processes much faster than more stable dyes used in the described technology. In addition, the printing prints are immediately dry and resistant to water.

An important disadvantage of technology used in consumer printers of this type is to reduce the size of the print and low performance when printing the text, as well as the need to use special papers. These features exclude the use of these printers as office tools.