Do-it-yourself canon mg4240 printer repair

In detail: do-it-yourself canon mg4240 printer repair from a real master for the site my.housecope.com.

Do-it-yourself printer repair - what can be done at hometo save on calling a wizard or sending a printing device to a service center? Not all problems can be solved on your own, but there are things that you can diagnose yourself. However, do not forget that a serious malfunction can only be identified and corrected by the hands of a specialist with extensive experience and a specialized tool for carrying out the relevant work. Repair of printers by service center engineers YauzaOrgService guarantees high quality and speed of service without overpayments. But what can be found at home?

• The most common cause of printer failure, whether it be Canon, HP, Epson, Oki, Samsung, Ricoh, Brother, or Xerox, is to clean the machine regularly. In simple terms, it's rubbish. Because of it, an unbalance of the case often occurs, noise appears during operation, or paper capture stops. That is why it is recommended to clean the printing device at regular intervals and only when the equipment is turned off. But you need to know about the prohibition of the use of alcohol - for wiping we take only ordinary distilled water, a new sponge and cotton swabs.

• We check the correct operation: the printer must be plugged in, the tray is firmly pushed in to the very end, the sheet guides are set, the cartridges are correctly installed and there is no jamming of foreign objects in the device.

• Don't be afraid to inspect the inside of the equipment for paper residue or torn pieces, toner spills, plaster, sand, or water.

Video (click to play).

• Check if the cartridge is empty.

• If printer malfunctions are displayed as errors on the computer monitor, be sure to write down the code, number, or information from the screen for transmission to the wizard.

• Pay attention to the print quality of your documents, whether there are additional streaks or spots, what color they are.

• Monitor the frequency of paper jams.

• Listen for extraneous sounds, crackles, noises when printing.

Having considered all the above nuances, which often lead to a stop in the operation of the printer, you can speed up the process of correcting the malfunction, replace the repair procedure with prevention and save money on the visit of a specialist. An assessment of the state of the equipment’s performance, an accurate statement of the problem and a listing of the problems that have appeared will allow the master to respond to the request as quickly as possible, since he will present the scope of work in advance. If this is not a serious breakdown and the situation allows you to repair parts, replace components or restore operation quickly - printer repair can be carried out at the diagnostic stage. By calling the phone number or sending a request through the website YauzaOrgService – assistance will be provided with a guarantee for all types of operations and services performed.

The Canon MG4240 MFP was giving error 5400, which sometimes alternated with error 5100. According to Canon diagnostics, error 5400 means the MFP is overheating. However, this diagnosis has nothing to do with reality. In our case, this Canon 5400 error was caused by oxidation of the head cable contacts. To eliminate this error, I had to disassemble the entire device, remove the carriage, disassemble it, clean the contacts and reassemble. The MFP worked after assembly.

Loosen the 4 screws on the back.

Loosen the screws on the front.

Cleaning the contacts of the head cables that fit the formatting board did not give results.

Unclip the top triangular cover of the control panel.

We snap off the cover over the control buttons, unscrew all the screws, remove the control panel.

We disconnect the card reader, unscrew and remove the metal fasteners,

Unscrew the screws securing the scanner

Further, everything is simple. To remove the carriage, you need to unscrew the guide bar, encoder tape, motor belt. We disassemble the carriage, clean the contacts of the cables, assemble in the reverse order.

The print head in inkjet printers needs to be cleaned occasionally. Otherwise, it may get clogged. As a result, print quality will be greatly reduced. And if the ink "tightly" dry up, the device will stop working altogether. Canon devices have a hardware cleaning function. Run the program on your computer, and the gadget itself eliminates blockages. You can also manually wash the part. But for this it must be removed.

How to clean and align the print head of a Canon printer.

The printer needs service if:

Printed pages have white streaks or other imperfections.
Some color is missing. There is ink in the cartridge.
The print quality has decreased.

due to long periods of inactivity. The paint has dried up.
Using empty cartridges. Don't "squeeze" leftovers out of them. Otherwise, the nozzles will be clogged. And this will lead to destruction.
Incompatible ink. Pigment and "water" should not be mixed. It leaves a residue that clogs the head. And also do not take paints from different manufacturers. If the device is new and it already has original cartridges from Canon, replace the ink in them. Choose one type of consumable and always use it.

Nozzles get clogged over time. In any case, they will have to be washed. Even if you have good cartridges.

Blockages in inkjet printers are a common problem. After all, paint dries in all devices. Therefore, they often add a self-service function. You can clean the Canon print head without even removing it. When you connect the gadget, the system must find and install the driver. But it is better to install the software from the disk that comes with the device.

The manufacturer's website has utilities for managing the printer. They have different settings and interface. It is not necessary to download them. You can also wash the nozzles.

Fill up the cartridges.
Connect the gadget to the PC.
Insert a blank sheet of paper into it.
On your computer, open the Control Panel.
Devices and Printers menu.
Right-click the Canon icon.
Item "Properties".
Section "Service".
Choose the type of cleaning (Standard or Deep) and cartridges.
Printing will start. The printer will supply ink under high pressure. A jet of paint will break through the blockage.
After cleaning, the system will prompt you to print a test page.
To run the test yourself, click on the "Nozzle Check" button in the same "Maintenance" section.

Do a standard flush first. The first time, it might not work. Try twice and print a test page. If it doesn't work, run a deep clean. Don't forget to refill cartridges - a lot of ink is consumed. Do not remove the part yet. Wait a day. Then try cleaning again. If that doesn't help, you need to wash it manually.

How to remove depends on the device model. The documents that came with the gadget and the manufacturer's website should contain an instruction manual. It takes into account the features of the printer. Read it first. And then you can remove the Canon head.

Turn on the device.
Open the lid.
The machine will eject the cartridge carriage.
Take them out one at a time and place them on a soft, lint-free cloth. If your printer does not have a palette of colors, note the order in which the cartridges were installed.
Raise the latch.
Here is the print head. It's easy to pull it out.

Soft rags, napkins, or other lint-free material. It must absorb moisture. Suitable cotton pads, bandages, gauze.
Syringes with needles.
Plastic container with low sides: lid, tray, container.
Distilled water. Sold in pharmacies.
Cleaning agent.

Soak a washcloth in this liquid.
There are contacts on the print head that must not be touched. Gently wipe the dirt off of it. Move along the contour of the nozzles. Use multiple wipes if necessary.
Remove the rubber seals. They must be washed, dried and returned to their place.
Clean the intake grates.
Fold the cloth, wet it and place it in a plastic container.
Place the head on top with nozzles down.
Draw the cleaning agent into the syringe.
Squeeze a small drop onto the intake grates.
When the liquid "passes" through the grate and is absorbed into the napkin, drip more.
If there are too many ink stains on the napkin, change it.
Keep dripping until these spots appear.
If it does not clean, heat the detergent to 50 degrees.
When all the paint has come out, do not remove the part. Leave it on napkins for an hour or two. If the material is clean, without streaks, then everything worked out.
If necessary, clean it of flushing agent. Use a cotton pad and distilled water. Don't touch the contacts.

If the head does not let liquid through at all, then the blockage is strong. But you can get rid of it too.

As in the previous instructions, place the part on a napkin.
Take the tube from the IV.
Cut it into small pieces. Somewhere around 5-7 centimeters.
Put them on the nozzles for receiving paint.
Pour washing liquid into them.
Top up and change wipes periodically.

There are also extreme methods. For example, you can put a syringe without a needle into the nozzle and push the liquid. Or fill the cartridges with washing liquid instead of ink. But it's risky.

To reassemble the device:

Install the head in the Canon printer.
Press it down with a latch.
Replace the cartridges. There should be a palette on the carriage. Don't mix up the colors.
Close the lid.
Do a test print.

If jagged lines appear on the sheet, calibrate the device. Most likely, the carriage has shifted. Canon heads need to be aligned.

Fill up the cartridges.
Insert 3 sheets of paper into the tray.
Start - Control Panel - Printers.
Right click on the device from Canon.
Item "Properties".
"Special Options".
Check the "Align manually" option.
Save.
Maintenance tab.
Click on Alignment.
In the next window, also click on "Alignment".
The printer will print samples.
Enter the numbers of the samples that you found to be of good quality. Choose examples in which white stripes are invisible.

You can also wipe the positioning tape along which the carriage moves. Use soft paper towels and service fluids. Then dry the tape. If the printer is properly maintained, it will last longer. And with regular cleaning, severe blockages will never appear. In the last article, I wrote about why the printer does not pick up paper. The fault is usually the paper pickup roller. In this article I want to tell and show step by step how to get to it in the Canon MG 4240 inkjet printer. This is not an easy and very long business, because. the printer will have to be disassembled almost completely. But I did it, and so can you. Go…1. Take out the cartridges. Be sure to wrap them in some kind of bag or special packaging so as not to fill everything with paint.2. Remove the screws on the back of the printer.3. Unfasten the upper parts of the button panel.4. Unscrew the screws under the panel. There are 4 of them, the second from the top is short5. Remove the left cover. Everyone's favorite zippers are here. Pry from below, front, back, press into the hole from above6. Remove the panel with buttons, shifting to the left. Watch out, loops!7. Remove the corner with the off button8. Untie the blue wire from the case. You can first untie, then remove the corner.Pay attention to the train - it is glued to the bar, remove it along with it10. Remove the right cover. The latch at the bottom will make you suffer11. It's the scanner's turn. We remove it in several stages:We unscrew the screws: one on the right, 3 on the left and a cable.Unhook WiFi adapter cableThen remove the entire scanner12. Disconnect all cables and wires from the board13. Remove the front door.Not required, but not to interfere14. Unhook the spring tensioning the tape. Remove the tape itself very carefully, do not bend it and do not get it dirty - the carriage is guided by it when moving.15. Remove the cartridge cover. 3 screws, yellow wire18. Remove the plastic strip19. We proceed to the removal of the leading bar. 2 screws on the left, one on the top right

21. Take off the white round thing22. Unscrew the screws of the bar. 7 pieces23. Remove the leading bar. Up24. Remove the metal plate. 1 screw25. We find the gear on the right and turn it so that the slot inside turns vertically26. Unscrew the screws of the white plastic panel28. Remove the spring from the shaft29. Unfasten the shaft on both sides and remove. The white bushings should be unfastened - the tongue is slightly bent and the entire bushing is rotated to the desired position30. Let's start removing the "dirty" barBend the white latch on the left31. Remove the white thing on the left side32. We take out the panel with foam rubberLoosen the screws on the left and rightSo we got to the desired detail. Difficult, but possible. Perhaps, in order to get to the video, some elements were not required to be removed, but I changed more than one detail, so I took everything apart.By the way, there was another detail that periodically jammed and slowed down the capture of paper: a kind of “pedal” with a spring. It is located right there: under the rollerWell, since we got to the base, it would be nice to wash or replace diapers. On this, perhaps, I will finish. I will not describe the assembly of the printer, since the same article will turn out, but in the reverse order.I almost forgot, here the guy posted his video on disassembling the same printer. True, there he does everything silently and his actions are not always clear, but perhaps this will come in handy for you:

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        There is ink. I have a CISS
        
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        Not surprising.
        If the hands are not from the priests, then 200-300 thousand prints go.
        
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        Post has been edited by localhost: 25 March 2014 – 15:48
        
        Quite often, Canon inkjet printers and MFPs encounter a situation where, when trying to print something, either several sheets of paper are captured, or vice versa - the paper is not captured. At the same time, all the mechanics seem to work out normally, the paper feed tray correctly feeds paper to the capture roller.
        In such cases, paper jams often occur (mainly due to multi-feeding or insufficient paper advance/feed speed).
        
        Most often, this situation occurs due to the fact that the axis of the paper feed roller breaks - this can be checked by moving the roller by hand: a significant play of the roller is noticeable. The roller is generally not fixed very rigidly, and even in the normal state there should be a slight play in the horizontal direction; but in the event of an axle failure, significant vertical play is noticeable.
        You can see the process of paper capture: at the moment when the feed tray presses the paper to the roller, its strong displacement inside the machine is noticeable.
        
        Actually repairing the roller is not too complicated: it is necessary to repair the broken axle, which can be done in various ways.
        Much more questions (judging by the discussions of this issue in various forums and conferences) are caused by the disassembly of the devices themselves in order to get to this video.
        
        I will try to facilitate your work on restoring the performance of equipment; we will talk about Canon Pixma iP 1200, 1300, 1600, 1700, 1800, 2200, 2500, 3300 printers and MP150, 160, 170, 180 MFPs (I have not encountered this malfunction on other devices).
        
        Let's look at an example Canon Pixma iP 3300, as the most inconvenient to disassemble.
        
        How to disassemble other printers from the above - see the materials at the links at the end of this article.
        
        Read also: VAZ 2115 do-it-yourself engine overhaul
        First remove the side covers. To do this, you need to release the latches from the bottom by pressing them (through the holes in the printer tray) and pulling the bottom of the cover away from the case.
        
        Then, pushing the lower part of the cover away, press the upper part of the cover (from top to bottom) to remove it from the hooks with which it holds the upper part of the case, while simultaneously moving the cover down and to the side.
        
        Next, remove the front pads. They are easier to remove when the latches on the front of the printer case are released.
        
        With a thin screwdriver, release the latch 1. Then, from the inside, pry off the latch 2 and move this part of the lining towards us (more than 3-4 mm, it will not move). After that, we insert a thin screwdriver into the gap between the trim and body 3 (at the right trim, the screwdriver is inserted above the power button), and, pressing the trim down, pull the outer edge of the trim, trying to leave the inside in place.
        When the lining is released (except for the inner part), the outer part of the lining must be tilted down to release the inner part.
        Look carefully at how she holds on to the body - you will have to assemble in the reverse order.
        
        We release the case latches - two on each side and three on the back; remove the printer case.
        
        Now you can see the broken “under the root” axis of the paper feed roller.
        
        To make it easier to remove the broken roller for repair, you need to remove the “bracket” that included the broken axle.
        From the front side, unscrew the self-tapping screw that secures the “bracket” to the bed; pressing the latch and moving it to the left, we take it out.
        
        Further, it is desirable to remove the sensor, because. when bending the latches that hold the roller, the tool may slip and damage the optocoupler of the sensor.
        
        The roller is held by two latches. We press the latches while pulling the roller.
        
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        Recently, the printer has been bad and sometimes completely refuses to supply cardboard for printing.
        I will say right away that he printed it, the problem got out after the same cardboard got stuck and I took it out through the feed tray. At the Canon service center - MTI Service Center, they told me that everything is ok, I’m sure that no one understood, they just checked ordinary paper, and he takes it, that’s all the help from the service. At the same time, I explained to them that I had already successfully printed on this paper.
        I looked through the feed tray to see how the feed process was going and saw that their 2 rollers simply slide and couldn’t pull up the paper, there was a feeling that there was a mechanism behind the rollers that helps lift the paper, which in my case does not work well.
        
        If anyone can write good advice or in theory tell what could be, I will be glad.
        
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        Radio engineering, electronics and do-it-yourself circuits Canon Print Head Repair
        Some printer models Canon the following error occurs: The printer software reports that The print head is not installed in the printer. Moreover, this malfunction is very typical for a whole line of Canon i320-iP1500 printers. First of all, you should check the health of the cable and head contacts. If they are working, then the problem is in the thermal sensor, which is built into the print head. In combination, the printer checks for the presence of the head itself using this signal. Therefore, when the thermal sensor breaks, the printer considers that the head is not installed and a corresponding message is displayed.
        
        In most cases, a printer head with this problem can be repaired. To do this, the sensor is replaced by almost any small-sized diode, for example 1N4007. It must be soldered directly to the pads of the head, while being careful.
        
        The head contacts are numbered from right to left from bottom to top. The anode of the diode is soldered to pad 37, the cathode to pad 36. After installing the diode, the printer sees the head again.
        However, damage to the thermal sensor could be caused by overheating and the malfunction may not be the only one. For example, sometimes the black decoder burns out and the printer starts to streak through one line, which looks like black ink is running out.
        
        Unfortunately, repairing the decoder is not possible, but there is still a solution, and it is software.
        You need to set the maximum print quality in the printer properties:
        
        This restores the print.
        Unfortunately, old printers, no matter how good and convenient they are, do not last forever. And when it comes time to replace an old printer with a modern one, an important question of choice arises: how to choose a printer that can be easily refilled without buying cartridges for the price of half a printer? We hope our article on printers and cartridges will help you with this. After reading it, you will learn that it is not at all necessary to fall for the marketing tricks of manufacturers and yet it is relatively easy to find a printer that can be cheaply refilled many times.
        
        PS: . if it does not burn the head with error B200.
        
        In this article, we will look at common problems with all-in-ones and how to fix them. Repair tips are relevant for almost all MFP models - HP, Canon, Epson, Xerox, Brother, Samsung, Ricoh, Toshiba and others.
        
        If the scanner unit is broken in the MFP, then, most likely, it will not be possible to repair it at home. This may require replacement of the backlight or scanning head.
        
        In principle, a malfunction of the scanning part of the MFP can be caused by breakdowns in the electronic part: it is necessary to check the capacitors for swelling, ring the power circuit with a multimeter, and also make sure that there are no burned-out elements.
        
        If there are problems with the printer unit, then repairing it is usually not difficult at home.
        
        Paper does not feed. It is necessary to check the correct installation of the cartridge (this applies to both inkjet and laser MFPs), there are situations when a foreign object gets stuck in the paper path. It must be removed and checked for physical damage that it could cause to the device.
        
        Read also: Do-it-yourself grain crusher repair
        The laser MFP may not be able to print due to cartridge chip not reset. This may happen after refueling. In this case, you need to either contact the service center to replace the chip, or purchase a new cartridge. You can replace the chip yourself. To do this, you need to find and buy a new chip (they cost from 30 to 150 rubles), and insert it in place of the old one. But for this you need to make sure that there is toner in the cartridge, otherwise replacing the chip is pointless.
        
        Streaks on sheets (laser MFP). In this case, you need to clean the drum unit. Remove the cartridge from the MFP, gently slide the protective cap (some models may not have it). Do not touch the photoconductor with your hands! Take a clean, dry, lint-free cloth and wipe any waste toner from the drum. Then install the cartridge back.
        
        Printing Issues (Inkjet MFP). White spots, incomplete color reproduction and other defects are all common in inkjet MFPs. First you need to try to troubleshoot software problems: cleaning the nozzles, calibrating the print head. If these steps do not help, you can purchase inkjet nozzle cleaner and clean with it. In no case do not use tap water, ordinary alcohol and other household products! You will only make it worse.
        
        We hope you find these repair tips helpful. If so, call, consultation is free!
        
        Clogged steam generators are far from the only reason why printers stop printing. However, there is a high probability that this is the problem if on your device:
        white streaks appear across the paper movement;
        
        one or more colors are missing;
        
        nothing is printed even though the printer does not warn and the carriage is moving properly.
        
        Most often, the print head does not want to work well:
        
        When the ink has dried up. In this case, several nozzle cleaning sessions through the printer's utility program may help. If the cleaning carried out twice did not help, use the "Deep Cleaning" function, you can repeat it in a day. Didn't work again? This means that the problem is much more serious, flushing may be needed.
        
        Water-based and pigment inks categorically do not want to cooperate, curl up, precipitate, quickly clog nozzles. Well, if you noticed the problem in time and the nozzles did not have time to burn out. It may also be incompatible paint of the same type from different manufacturers. Ideally, ink tanks should be refilled with the same consumables. Some experts even advise not to print with new original cartridges if you are going to refill them later, but immediately rinse and fill in exactly the ink that will always be used.
        
        Carefully monitor the condition of the ink tanks, fill them in time, as printing with ink residue quickly disables the PG. First, the nozzles get clogged, and then, if you do not pay attention to the print quality in a timely manner, the nozzles burn out. Here, flushing will not help, such a head cannot be restored.
        
        Flushing liquid OPC RSL100
        
        Specialized ink shops also sell washing liquids. For instance, OCP RSL100 or more concentrated Bursten PDK. But they are quite expensive, and a large amount of product may be needed to wash a very dried head.
        
        You can make an alkaline solution yourself according to the following recipe. For 7 parts of distilled water, take one part:
        
        ammonia,
        
        isopropyl alcohol,
        
        glycerin.
        
        Mix the resulting mixture thoroughly and strain. It does not make sense to use distilled water separately, since it is ineffective for water-based ink and does not dissolve pigment paint at all.
        
        Flushing fluid Mister Muscle
        
        Important: Do not wash blockages with alcohol and vodka. Dried or curdled paint gives the remaining liquid to ethyl alcohol, further soaking becomes problematic or impossible.
        
        The best glass cleaner Mister Muscle blue or green. Its effect is comparable in results with specialized flushing fluids, but the price is significantly lower. You can use other window cleaners, the composition of which is close to Mister Muscle and contains ammonia.
        
        Open the cover while the printer is on to drive the carriage out of the parking space. Turn off the printer. Take out the cartridges. The print head is clearly visible, but it is too early to get it out.
        
        Canon iP3600 print head lock
        
        In different printer models, the latch holding the PG looks different, although the principle of operation is the same in almost all models. On the right side there is a lever, or the frame has a certain shape. You need to lift it up.
        
        A slightly different principle in the MG5440 model. The latch here is a bar with the image of ink colors, which does not rise up: you need to pull it towards you until it clicks. Now the PG is free, tilt it forward and carefully remove it from the printer.
        
        Make sure that the PG of your printer does not have burnouts near the nozzles, the nozzles are intact, and flushing
        
        Burnouts in the nozzle area (Click to enlarge)
        
        has the meaning. If so, prepare:
        
        washing liquid;
        
        gauze, napkins or bandage;
        
        syringe;
        
        a low plastic container that will fit the steam generator;
        
        tube from a medical dropper.
        
        Cover the table with newspapers and place a piece of bandage folded several times soaked in flushing liquid under the PG. With another piece of cloth, also dipped in cleaner, gently blot the intake grates.
        
        Remove the rubber seals, wash them, carefully wipe the head body around the intake holes. Drying of ink in these places is fraught with depressurization of the system. As a result, air may be sucked in, the paint will flow intermittently. It's a good idea to periodically clean the O-rings as a preventive measure, even when there are no printing problems.
        
        Read also: Do-it-yourself radar detector repair
        Instillation of PG (Click to enlarge)
        
        A little liquid is instilled into each lock with a syringe with a needle. As soon as the drop is absorbed, add more. Change the bandage as it becomes dirty and continue to drip until the liquid passing through the head no longer stains the color of the ink. If the liquid is not absorbed very well, warm it up to 50-60 degrees. To enhance the effect, you can use a more aggressive agent, following the instructions for its use.
        
        When each of the sluices begins to absorb well and skip flushing, set the head to stand. After an hour, the fabric should not show strong streaks of ink. This means that the flushing was successful, the head can be returned to the printer. Before printing, be sure to clean the nozzles of cleaning agent using the printer's utility program.
        
        But washing is not always so easy. Perhaps one or two locks do not allow liquid to pass through: the drop is not absorbed for a long time. For some time you need to remove it with a bandage and drip again, but if nothing has changed in an hour, it's time to proceed to the next step.
        
        Pour 2–3 mm of flushing liquid heated to 40 ° into a plastic container, lower the print head there with nozzles down and put it in a warm place to soak, after covering the gateways from above with a wet bandage from drying out and covering the PG with a plastic bag. If no change is observed the next day, reheat the cleaning fluid and leave for another day. In general, flushing the print head is a long process; saving a part can only be done slowly.
        
        Flushing liquid filled
        
        If the sluices still do not let fluid through, you can try to create some pressure from above. It is necessary to put tubes about 5 cm long on each of the intake holes and fill them with cleaning liquid.
        
        In this form, the structure can be left for a long time, periodically adding flushing. If the liquid from the tube through the problematic gateways still leaves, continue the procedure for two days.
        
        When the liquid level in one of the tubes does not decrease, you can try the next trick. Pour a little product into the container, put a piece of cloth and press the PG nozzles against it. Insert a syringe without a needle into the tube and, carefully moving the piston towards you, stretch the cleanser through the nozzles.
        
        Do this several times, adding clean liquid to the pan.Pour the used wash out of the syringe, then refill the tube and leave for another hour. The process can be repeated several times.
        
        Important: The head must be pressed firmly against a wet cloth so as not to draw air into the nozzles.
        
        If now the liquid leaves the tubes at approximately the same speed, the steam generator has been flushed out.
        
        If after two days of soaking the liquid still does not pass well, you can
        
        Pumping liquid through PG (Click to enlarge)
        
        try pumping it with a syringe in both directions. Still press the nozzles to the wet bandage, drawing in the liquid in the same way. Extrusion in the opposite direction must be carried out with a filled tube.
        
        Liquid is drawn into the syringe in such a way that there is a layer of air between the piston and the flushing agent. This technique helps to avoid a sharp push that can damage the nozzle plate.
        
        You need to press the piston very carefully, no more than 2-3 divisions at once, then even more slowly, depending on the liquid leaving.
        
        That, in fact, ended the ways in which there was a high chance to save the print head. If the goal was not achieved, you can apply several more much more risky methods:
        
        1. Squeeze liquid with a full syringe without an air cushion. The pressure on the nozzles will increase significantly, as will the risk of damaging them. Do not press the head against the fabric, but slightly raise it. Press the piston carefully, as before, the pressure is much greater due to the lack of an air cushion.
        
        2. Hold the SG nozzles over the steam for several minutes and push through the flush heated to 40–50 degrees.
        
        3. Lower the head for a few minutes on the surface of hot water, without dipping more than a millimeter, and pull the liquid through the nozzles.
        
        The printhead is washed (picture taken from (Click to enlarge)
        
        4. Use a more aggressive agent: mix 9% vinegar and distilled water in a ratio of 1:9. Such a composition cleans well, but has a destructive effect on internal parts, and after its use it is necessary to rinse with an alkaline solution to neutralize the acidic environment. Do not use this method unless you are prepared for the print head to fail in two to three months.
        
        If one of these extreme methods helped achieve the desired goal, do not rush to return the PG to the printer. After such extreme measures, be sure to dry it with a hairdryer. You can’t overheat the head: take breaks for twenty minutes. If you doubt that everything has dried well enough, leave it near the battery for two days, and before installing, drip a little flushing liquid into each gateway.
        
        Video (click to play).
        
        You can also order the washing of the print head by leaving a request.
        
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