The recently discovered phenomena of intermittent pulsed radio emission from pulsars obtains much attention of
observers and theoreticians. These challenging new types of radio pulsars emit sporadically on time-scales of hours, to
weeks and even years. Despite many suggestions, there no certain mechanism is defined behind this puzzling
phenomena. Understanding these extraordinary sources would play a big role for getting closer to defining single
emission model for pulsars. In present research project, it is suggested that these sources are “normal” radio pulsars,
which having certain parameters reveal emission intermittency. Particularly, the emission is not generated with other
mechanism than in normal radio pulsars and it is also not generated just in times when we observer it. It is assumed that
certain type of nonlinear process naturally developing in the pulsar’s electron-positron plasma cause the change of
direction of radio emission beam for these sources, resulting the disappearance of the pulsed emission from the observer’s
sight. The same processes can run in all radio pulsars, giving different picture due to different pulsar parameters.