an improved output unit used in recording information on a recording medium is disclosed which comprises a plurality of output parts and in which recording of information is carried out while changing the relative position between the output from the output parts and the recording medium . the improved output unit according to the invention is characterized in that the output parts are arranged in rows in a predetermined direction and are disposed in such a manner that information may be put out selectively from the output parts so as to prevent information from being recorded in overlapping fashion on the recording medium in a manner as often occurs in the conventional unit . spacing between the output parts is selected large enough that the output parts are easy to manufacture . since a plurality of output parts can be operated very effectively , extremely high recording efficiency is achieved using the information output unit according to the invention . also , it is possible to use a recording medium having a relatively low sensitivity and which is generally cheap in cost , for carrying out a high speed recording .