\documentclass[a4paper]{article}
\usepackage[amiga]{umlaute}
\usepackage[german]{babel}
\usepackage[]{casio}
\begin{document}
\section{This is a short test for {\sffamily CASIO}-font}
First copy the files \texttt{casio.sty} and \texttt{ucasio.fd} to path used for \LaTeX2e.
Check aout the \TeX\ source for the syntax of the little style-file.
Here are the keys:
\begin{itemize}
    \item[funktionkeys] {\casiofont q w e r t z}
    \item[1. Row] {\casiofont a s d f}
    \item[2. Row] {\casiofont y x c v}
    \item[3. Row] {\casiofont A B C D E F}
    \item[4. Row] {\casiofont G H I J K L}
    \item[5. Row] {\casiofont k l}
    \item[numberkeys] {\casiofont 1 2 3 4 5 6 7 8 9 .}
    \item[mathkeys] {\casiofont S T X Y u i o}
    \item[arrowkeys] {\casiofont <>MN}
\end{itemize}


\end{document}
