Fluid material dispensing apparatus

A fluid material dispensing apparatus comprising;

• a setting section of a cartridge containing a fluid material;
• a material chamber to which the fluid material is supplied;
• a valve seat constituting a part of the material chamber and including a dispensing port;
• a piston configured to move inside the material chamber in a direction toward and away from the dispensing port;
• and
• a drive unit for the piston, wherein
• the cartridge is detachable, the fluid material dispensing apparatus being configured to accept, as the cartridge, a plurality of cartridges respectively containing different types of the fluid material,
• at least one of the valve seat and the piston is a detachable member that is detachably mounted, the fluid material dispensing apparatus being configured to accept, as the detachable member, a plurality of detachable members respectively having different structures, and
• the detachable members each include a structure information provider of a corresponding structure,
• the fluid material dispensing apparatus further comprising an information reader that reads information from a material information provider of a corresponding fluid material, provided in each of the cartridges, and information from the structure information provider.