Abstract: An electronic typewriter includes a plurality of character keys, a specification selector, a printer circuit, and a memory for storing a plurality of specification tables, each having a plurality of key data. A data processing circuit detects a determined one of the plurality of specification tables in response to a selection signal from the specification selector, and reads out the corresponding key data from the specification table selected in accordance with the operation of the character keys, thereby driving the printer circuit in accordance with the key data. The specification selector includes a plurality of selection switches formed on the same keyboard together with the plurality of character keys.

Abstract: When a number of input key data sequentially stored in a first line buffer memory from a keyboard coincide with the contents of a right margin memory in a RAM, the line data up to the word immediately preceding the word reaching a preset right margin is sequentially transferred from the first line buffer memory to a second line buffer memory. The number of input key data from the immediately preceding word to the preset right margin is counted. In accordance with the count thus obtained, a spacing adjustment of the spaces left between words of the line data transferred to the second line buffer memory, is performed under the control of a CPU prior to printing of the words according to the contents of the second line buffer memory.