For HP models, the ink is sprayed through dozens of fine holes in the nozzle (the gold plate at the bottom of the cartridge). The quality of output depends on the condition of this part, and if it is neglected for a long time or it is excessively used while the color is faint, the nozzle can dry up and be damaged, which directly affects the quality of output.

When you have faint colors, blank page output, or white lines, mostly the reason is dried up or damaged nozzle. When this happens, you must put it on a wet tissue for about one hour to induce recovery, and after confirming that the nozzle is wet with ink, perform “Cartridge Cleaning”.

[Caution] In order for the nozzle to be reused many times for a long time, it should be used regularly (at least once per month), and you must check the nozzle status and remained quantity for each color based on the output of “Cartridge Cleaning,” and refill the ink at the right time.

For Canon printers, the output quality depends on the condition of the existing cartridge.

Therefore, if you print after not using it for a long time or when the ink is exhausted, the nozzle can become dry or damaged, in which case it will not print normally even after refilling.

When this happens, put it on a wet tissue and when the ink leaks at the nozzle, and clean the cartridge after removing wet around it.

The time when the ink of a color in color cartridges is exhausted vary according to the users.

When even one color is exhausted, it is a good idea to refill the color immediately. When too much ink is injected or ink is injected too fast, the ink may not come out normally for a short time.

When this happens, put the cartridge on a wet tissue for one hour, and when all the three colors leak at the nozzle, clean the cartridge after removing wet around it. It is also effective to extract a little ink using a refill tool.