Hetero-structure semiconductor devices having first and second-type semiconductor junctions are disclosed. Next, an uplink temporary block flow is established. The molded body is composed of a porous body having a porosity of 10 to 30%. In yet another additional or alternative embodiment of the method, the method may include sending a message to the end-point indicating that the message has been blocked. Upon determining that the limit to prohibit the printing using the spot color printing material is imposed on the object set to be printed using the spot color printing material, control is performed to prohibit issuance of a rendering command to print the object using the spot color printing material.