Inkjet Printers Printhead Cleaner Nozzle Cleaning kit for WF-7620 WF7710 WF-7720 WF 7210 WF 3630 WF-2630 WF-2660 WF-7520 WF-7510 WF-7010 WF-3540 WF-3530 WF-3520 WF-3720 XP-440 XP-340 XP-446-A1 100ml*2

Directions:
1. Heat the cleaning fluid.
2. Print the "nozzle checking" test page to confirm the color to be cleaned.
3. Pick out the ink cartridge.
4. Inject the cleaning fluid into the print head that needs cleaning with a syringe, and wait for 10-12 hours,as shown in Figure 3.
5. Install the ink cartridges and run the "nozzle cleaning" function twice in printer driver.

After cleaning, if the clogging is more serious, maybe it's because the cleaning liquid hasn't been totally discharged and still stays inside the print head. Please follow the following steps:
1. If you have the refill ink for this printer, you can inhale ink 4ML with a syringe and inject it into the ink inlet of the print head, then install the cartridge and run the driver's "Print head cleaning" function 1 times.
2. If you do not have the refill ink for this printer, you can use an empty syringe (do not need to inhale anything)to connect with the ink inlet of the print head, repeatedly push and pull the plunger of the syringe to discharge the cleaning liquid. Then install the ink cartridge, and run the driver "print head cleaning" function 1 times.
3. If there is no improvement, you will need to wait 2 hours and try again to run the driver's "Print head cleaning" function 1 times. The above methods can be tried several times.

P.S.:More detail instructions and tools are included in the package.

Package content:
3.4 oz Printhead Cleaning Fluid
1×Syringe(10ML)
1×silicone tube
1×instruction manual

Cautions:
It may not work for serious clogging or when there is insoluble material inside the nozzle. You need to replace a new print head to solve the problem.