Print head for printer

Inkjet printers have spread fromAmerican company Hewlett-Packard, although Japanese specialists (Epson, Canon) also worked on the development. The printhead (PG) is the most complex and expensive device. According to the position and duration of its operation, printers can be conditionally divided into three large groups.

Types and features

• GHG in the cartridge. As an example - the print head of HP. In this version, it works out the only resource for refilling the cartridge by the manufacturer and burns out when the ink runs out.
• Printers with ink cartridges. The SG in them is removable and serves as an expendable material (print head CANON, for example). The cost of producing such ink cartridges is much less, and the cost of the most removable and replaceable PG at a price is 40-80% of the cost of the printer. Printheads of this type are more durable than the first ones.
• Printers with ink cartridges and PGnon-removable, separately printing, which itself does not apply to consumables (for example, Epson). These heads are considered particularly durable and designed to work until the end of the life of the printer.

A similar concentration of technological innovationsthe main mechanism of inkjet printing has led to the fact that the cartridges in the cheapest models are estimated at almost half of the total cost of the printer, which is absolutely unprofitable for intensive use of the product. In order to somehow reduce costs, it is necessary to master the procedure for refilling cartridges.

The device of ink-jet cartridges

In any printer, the printing unit consists of two parts:

- ink tank;

- a capillary system, supplying ink to the nozzles, and from there, "firing" them on paper.

Inkwell in black and almost in all colorThe cartridges are filled with an absorbent sponge (foam rubber). For refilling this is the most suitable execution. In other models ink retention occurs due to the difference in pressure - external and internal. In some cases, this is due to the presence of a special bag of air.

The printhead is the most important part of the unit. Modern cartridges are often equipped with embedded chips, which control the consumption of ink to combat their reuse.

The ink for them is also different. Manufacturers claim, for each model of the printer comes its own, precisely defined type. However, in recent years, ink has already been sold (often large containers), suitable, according to the sellers, to different models of inkjet printers.

They are referred to the group of standard (simple) and theysuitable for printing simple text, with low resolutions. There are also specialty ink for high-quality printing, but they are expensive, and they are not suitable for refilling in handicrafts.

The print head will work longer ifWhen refilling with ink from an original manufacturer, the cartridge is pre-cleaned thoroughly and rinsed. For this, distilled water or special liquids that do not contain alkali are used. If the type of ink does not change during refueling, it is recommended not to wait for the cartridge to empty and refuel it in a timely manner.

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