2. A printing apparatus according to claim 1, wherein said selection signal generating means includes a comparator for comparing each character code stored in said buffer means with a reference code.
1. A printing apparatus, comprising: a processor of stored-program type with a data bus and an address bus for controlling the printing operation sequence of the apparatus; a keyboard for entering character codes; buffer means for storing a character code entered by said keyboard; a character generator connected to the output of said buffer means to be addressed by the character code stored in said buffer means for generating one of a group of character patterns, which corresponds to the addressed one, at the output thereof; a processor-accessible memory connected to the address bus of said processor to be addressed by an address signal issued from said processor and producing data at the addressed location on the data bus, said memory storing character patterns other than the group of character patterns; and means for generating a first selection signal when the character code stored in said buffer means corresponds to one of said group of character patterns and a second selection signal when the character code stored in said buffer means corresponds to one of said other character patterns; wherein said processor in response to the first selection signal directs said buffer means to address said character generator by the character code stored in said buffer means for generating one of said group of character patterns from said character generator, and in response to the second selection signal receives the character code stored in said buffer means to convert the received character code into an address signal and accesses said memory by the converted address signal through the address bus for generating one of said other character patterns on the data bus, wherein said processor does not participate in addressing said character generator for the first selection signal.