CJP stands for ColorJet Printing.
It builds colorful models by spraying color onto layers of white powder.
This method is fast and low-cost.It works well for toys, samples, and display parts.
A layer of white gypsum powder is spread over the build platform.
Then, a printhead selectively deposits colored binder (CMY or CMYK) onto the powder, just like a 2D inkjet printer.
The binder hardens the powder and adds color at the same time. Layer by layer, the full model is formed.
CJP is fast and cost-effective for non-functional models that focus on visual appearance only.
However, prints are fragile and require post-processing (e.g. infiltrants or coatings) to improve strength.