Ink-jet printing belongs to the print advertising industry, so if you want to learn ink-jet, enter a special print advertising training school, or you can work as a clerk in an advertising company first, you will naturally understand ink-jet. Please refer to the following:

Print advertising training schools are:

Urumqi Print Advertising Design Employment Training School?

Tongzhou computer training graphic design training class

Hefei graphic design training

Beijing graphic design class

Wait, there are many such training institutions, which are found in all cities.