Keyboards of office machines. Layout of printing and function keys

This technical specification defines the standardized arrangement of keys on keyboards designed for public typewriters. It establishes specific requirements to ensure consistency and usability across various devices utilized in shared environments. The document outlines the optimal positioning of character keys, punctuation marks, and functional controls to facilitate efficient operation for users. By implementing a uniform layout, the standard aims to reduce training time and minimize operational errors for individuals who may not be familiar with typewriter mechanisms. It specifies dimensions, spacing, and the sequence of keys to create a predictable interface. The guidelines cover the arrangement of alphabetic characters, numerical digits, and special symbols necessary for general text entry. This approach promotes interoperability and user convenience in public offices and commercial settings. The content focuses solely on the physical configuration and logical organization of the keyboard elements without addressing maintenance or electrical characteristics. It serves as a reference for manufacturers and operators seeking to align with established norms for typewriter interfaces.