A print image generating program is capable of printing information that discourages fraudulent distribution of printed documents, irrespective of the type of printer. 155 or more, and a second porous body is manufactured by stretching, in biaxial directions, a sheet made of polytetrafluoroethylene. A phase of at least one diversity signal is adjusted. The device features on that: a narrow neck part with a ring groove is arranged at one end of the cylinder near the polygonal prism. Each of the additive supply tanks may contain a different colorant andor flavoring. The color recognizing device includes an emitting portion from which a beam of light is emitted to the corresponding thread, a receiving a reflection beam of light reflected from the thread, and a light shielding device provided between the emitting portion and the receiving portion for the prevention of an entrance of light into the receiving portion except for the reflection beam of light.