Refilling inkjet cartridges. Encyclopedia of radio electronics and electrical engineering

Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies

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In the mid-50s of the last century, magazines wrote that a burnt-out electric light bulb is a real treasure for those who like to make everything with their own hands. In particular, it was reported how to make magnifying glasses from retort flasks and other very useful things. Nowadays, a real treasure for do-it-yourselfers are ... used disposable medical syringes. It is no secret that they are already being used by craftsmen as oilers, neat coils that are easily mounted on circuit boards. I am sure that such syringes can also occupy a worthy place in the arsenal of computer scientists when refilling inkjet printer cartridges, which (I know for myself) is difficult to do at home. It is especially difficult when refueling black (by the way, the most common) color.

Anyone who decides to take on board the tips below, you first need to decide: whether to buy a new cartridge or limit yourself to purchasing a bottle of ink that costs an order of magnitude lower than which can be enough for several refills. Please note that the numbers given in the recommendations for customers and in the operating instructions for an inkjet printer (for example, 15 - black and 78 - color) refer only to the cartridge itself and not to the ink that fills it.

When buying ink, it is enough to meet the minimum conditions - to give preference to products intended for cartridges of the company that manufactured your printer. And this is the first thing.

Second. The cartridge has a sticker warning about its single use. As practice shows, this is only the manufacturer's reinsurance, it must be overcome and assure yourself that refueling can be repeated. Finally, the third. On the box of ink you buy, there may be an encouraging inscription like Easy To Use, which means "easy to use", but ... Do not flatter yourself. On the contrary, you should start work with extreme caution and extreme care, following the reasonable advice from the instructions for refilling ink. In particular, adhere to the recommendation that that it is necessary to wipe the jet nozzles only with a soft cloth moistened with warm water, because the cotton wool can leave villi.

Of the technological devices attached to the ink box (Fig. 1), only the essentials are left (Fig. 2), including the ink bottle. However, the latter should not be used for direct pouring of ink into the cartridge by squeezing along the designated accordion. To do this, it is better to use more accurate dispensers - two medical syringes (one with a working volume of 5 - 10 cm3, the other is smaller, with a minimally thin needle). Of course, both should be rinsed with warm water before use.

Rice. 1. Marketed Inkjet Printer Refill Kit

Rice. 2. A set really necessary for refilling an inkjet printer

On the cartridge, cut off the sticker, find the factory filling hole and open it. If you find any valve there in the form of a valve-nipple, remove it; if it is a ball, then it is enough to press it inward and lead it by the bottom, to the side. When there is no hole, it must be drilled, watching the exit of the chips and preventing them from getting inside the cartridge. The drill is thin and reliable.

It is possible that the jet nozzles of the cartridge will be on the side opposite the filling hole. In this case, it is necessary to close them - firmly press a piece of microporous rubber to the exit plane of the nozzles and fix it, for example, with adhesive tape.

Further. Ink is drawn into the syringe through the needle from the vial and the cartridge is filled with the required amount. Let it be, for example, 14 ml. With the help of a syringe, such an operation can be done very accurately, after which the hole must be sealed with a rubber patch.

Rubber should be chosen thick (at least 3 mm), say, from a car camera. And as a fastening agent, it is recommended to use glue No. 88, observing the method of its application - with double lubrication and drying.

If the thickness of the patch interferes with the installation of the cartridge in the slot, then you will have to take measures to grind down the interference spot on the glued rubber. With the occurrence of situations when rubber, when installing the cartridge, prevents its movement to dock with the connector, it is necessary to lubricate the outer surface of the patch with petroleum jelly.

In the future, the rubber patch, firmly closing the hole, will act as a kind of nipple when pierced with an empty syringe with a thin needle, both to fill the appropriate amount of ink and to equalize the pressure in the cartridge. And one more important feature.

After gluing the patch, it is necessary to stop the flow of ink through the nozzles.

The instructions for refilling ink indicate that you need to force air into the cartridge, and not suck it out of there. But common sense and the laws of physics suggest a different algorithm of actions. Of course, when air is forced inside, ink will appear from the nozzles even if they are vertical, which can be seen by piercing the glued patch with an empty syringe with a thin needle (Fig. 3) and forcing air into it. In short, if the cartridge immediately starts to leak from the nozzles after refilling and sealing (you can check this by slightly and briefly tilting it), you need to pump out a few cubes of air (without taking the ink from the cartridge). The pumping is carried out until the release of ink from the nozzles stops at any inclination of the cartridge. To find out the exact volume of pumped out air, the measured divisions on the side wall of a small syringe will help.

Rice. 3. Working pressure instrument inside the printer cartridge with small capacity medical disposable syringe

Having installed the cartridge in the printer, it is unlikely that you will immediately get the required print quality. To print a graphic image, the cartridge must be configured.

Having removed the cartridge, inject 1 cm3 of air into it with a syringe (or half of what was pumped out before). Wipe the nozzles and set the printer to print again. If necessary, repeat the above operations several times until the desired result is obtained. At the same time, do not forget that in the printer's software settings there are "low-high ink consumption" and "fast-slow drying" modes - they are directly related to the pressure inside the cartridge. And it may turn out that the "bold" print will be in the "low ink consumption" mode of the program settings.

Author: V.Silchenko

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