To provide an apparatus capable of mounting a printing head to a printing apparatus without using a tool.

This printing head mounting apparatus is used for mounting an ink jet printing head 1 in a continuous ink jet printing apparatus 7. The mounting apparatus comprises a printing heat mounting portion 4 which can accept a resonator assembly 2 of the printing head, a latch means for fixing the printing head to the printing head mounting portion when the printing head portion accepts the resonator assembly, related to the printing head mounting portion, a snap and stop mechanism related to a fluid inlet line 3A, a fluid outlet line 3B, and scavenger outlet line 3C, wherein the fluid inlet line and the fluid outlet line each have an inner non-return valve.