The printer's ink supply is empty. What should I do if I forget that the ink filling duct is empty?

The usual method is to insert the syringe into the ink cartridge to pump out air until the ink is seen to be pumped out. However, this method can easily destroy the sealing performance of the ink cartridge. Any slight air leakage of continuous supply will lead to printing failure that is difficult to judge. For example, the print nozzle test pattern is not broken, but horizontal stripes appear when printing photos. This situation is mostly due to the use of syringes to extract air. At the same time, the nozzle is always exposed to the air during pumping operation, which is also easy to cause nozzle blockage. The best way is to use safe exhaust technology. No syringe is used, and there is no need to insert or remove ink cartridges, so it will not affect any parts of the printer. It is absolutely safe for the printer.