Ah, should I use CMYK or RGB for inkjet printing?

CMYK is used for inkjet printing

RGB can also be used but there is color difference

Inkjet printing is mainly for light box cloth, general slogans and large outdoor wall advertisements. Materials

Inkjet printing uses oil-based ink for outdoor use

Photography is divided into indoor and outdoor areas, usually with adhesive posters and light sheets. These materials are like advertisements and display racks posted on shopping mall counters. They are all photo-based

Indoor portraits with real ink generally need to be coated with mainly solid light film and sub-film photo film. There are very few

That's about it