A dispenser which assists an individual in dispensing a substance from a squeezable tube. The EAMR head includes a laser, a slider, and an EAMR transducer. The first area is reserved in a surface of a silicon substrate for forming an infrared detection element. The locations on the mask are heated with the respective radiation intensities by means of a radiation projector means with a radiation source positioned outside the lithography beam path; the heating of the mask thus effected generates distortions in the mask pattern due to local thermal expansion. Finally, a processor is included to activate the selected information on the navigation device, upon receipt of the requested information to activate. The toner particle has a structure such that when the particle is heated at a temperature ranging from 65 to 90\xb0 C.