There may be the circumstance that the printhead sometimes may hit the materials,which will damage the printhead.When this happed,the printhead may need to be replaced,which will cost a lot.Then how to solve?The anti-collision system is designed to solve this problem.If the material is higher than the printhed,when the cariage move to the matrial,the anti-collision will be hit and then the cariage will stop,prevent the printhead from damage caused by huam error or materials deformation.Dacen is always focus on printer!