Abstract: A recording system for driving heating elements of a thermal printing head such that the recording intensity is substantially the same at two different recording speeds. One of at least two given recording character modes is selectively set, each of the recording character modes setting a given different recording speed. At least the pulse amplitude of a driving electric power signal, which is selectively applied to the heating elements of the thermal head, is varied in accordance with the set recording character mode while keeping the pulse cycle of the driving electric power signal at a predetermined substantially constant period. The pulse amplitude of the driving electric power signal has a higher value when recording at a higher speed and a lower value when recording at a lower speed. In addition to controlling the amplitude of the driving electric power signal, it is possible to further control the pulse widths of the pulses forming the driving electric power signal.

Abstract: A picture image recording apparatus in which a picture image information input device such as a scanning type television camera, a device for binary coding the picture image information, a memory device for storing the binary-coded picture image information, a monitor device such as a CRT display for displaying the binary-coded picture image information, and a hard copy device such as an electrophotographic copy machine for producing a hard copy of the binary-coded picture image information are combined so that a picture image on a relatively large plane can be recorded economically with high resolution. The large plane to be recorded is divided into a plurality of frames, and the picture information for the frames is stored in memory and made to align so that they can be combined together in a high resolution hard copy output.