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 the cartridge is full to see if it has run out.

• 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, noise 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.

Image - Do-it-yourself canon mg4240 printer repair

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.

Image - Do-it-yourself canon mg4240 printer repair

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.

  1. Fill up the cartridges.
  2. Connect the gadget to the PC.
  3. Insert a blank sheet of paper into it.
  4. On your computer, open the Control Panel.
  5. Devices and Printers menu.
  6. Right-click the Canon icon.
  7. Item "Properties".
  8. Section "Service". Image - Do-it-yourself canon mg4240 printer repair
  9. Choose the type of cleaning (Standard or Deep) and cartridges.
  10. Printing will start. The printer will supply ink under high pressure. A jet of paint will break through the blockage.
  11. After cleaning, the system will prompt you to print a test page.
  12. To run the test yourself, click on the "Nozzle Check" button in the same "Maintenance" section.
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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 item 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.

  1. Turn on the device.
  2. Open the lid.
  3. The machine will eject the cartridge carriage. Image - Do-it-yourself canon mg4240 printer repair
  4. 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.
  5. Raise the latch.
  6. 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.
  1. Soak a washcloth in this liquid.
  2. 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.
  3. Remove the rubber seals. They must be washed, dried and returned to their place.
  4. Clean the intake grates. Image - Do-it-yourself canon mg4240 printer repair
  5. Fold the cloth, wet it and place it in a plastic container.
  6. Place the head on top with nozzles down.
  7. Draw the cleaning agent into the syringe.
  8. Squeeze a small drop onto the intake grates. Image - Do-it-yourself canon mg4240 printer repair
  9. When the liquid "passes" through the grate and is absorbed into the napkin, drip more.
  10. If there are too many ink stains on the napkin, change it.
  11. Keep dripping until these spots appear.
  12. If it does not clean, heat the detergent to 50 degrees.
  13. 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.
  14. 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.

  1. As in the previous instructions, place the part on a napkin.
  2. Take the tube from the IV.
  3. Cut it into small pieces. Somewhere around 5-7 centimeters.
  4. Put them on the nozzles for receiving paint. Image - Do-it-yourself canon mg4240 printer repair
  5. Pour washing liquid into them.
  6. 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:

  1. Install the head in the Canon printer.
  2. Press it down with a latch.
  3. Replace the cartridges. There should be a palette on the carriage. Don't mix up the colors.
  4. Close the lid.
  5. 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.

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