So, here are some tips from cleaning services London professionals on how to have the cartridges cleaned from the ink:

Disable your printer using a screw driver. This is the easiest part but keep in mind that you have to orders the screws in such a way which to allow you to find them later and to place them in the exactly the same holes where they were. This is important. In order to do it easier, take a white sheet of paper and put the screws on it in the order you unscrew them.

• Once the printer opened, put rubber gloves on and removes the cartridges carefully.
  
• Boil some water and put it in a bowl.
  

Tip: if you want even better results, put some rubbing alcohol in the bowl.

• Submerge the cartridge in the water and leave it there for about a minute.
  

Hint: do not be afraid that you will damage something because you will not. They are made to contain liquid and therefore when put in water they are not in danger of getting harmed.

• Wipe the heads of the cartridges in a paper towel.
  

This is the easiest and the fastest way to make your printer to work better. However, you can use ultrasonic cleaning or centrifuges but they are more expensive and harder to find.

Tip:

If you are not careful enough, you may spot your upholstery with ink, but if you act fast enough, this also will be something that will not disturb you. Follow the tips given by most cleaning services London companies:

1. Never scrub the carpet

2. Dab a cloth with alcohol and damp well

3. Spray some lubricant on the stain and let it stay for about a minute (a good choice of solution here is the WD-40)

4. Rinse well with water and let It air dry. (If you want, you can use a fibre softener which to make the upholstery nicer to touch)

According to http://www.fantasticcleaners.com/ it is important to know that some materials are more gentle than others, so before the cleaning, test the solutions on a hidden are and make sure that it is safe.