When adding ink to see if the ink cartridge is completely nondestructive, you can install water test in advance. If the replacement of new ink should be the original ink cartridge thoroughly cleaned, otherwise there will be two different ink mixing and resulting in chemical reactions, resulting in plugging phenomenon. Some users in order to facilitate the use of the machine comes with the cleaning function, in fact, this is not good, it is best to wash a few more times with water, until you see clear water. When changing ink must be appropriate, some users in order to save time, each ink added full, which will lead to ink cartridges in the use of ink leakage phenomenon, and leaking ink may wet the digital printing machine inside the other parts, so that damage to the digital printing machine.
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