\PassOptionsToPackage{fontsloadable=true}{xepersian}  % Load xepersian with a few options
\documentclass{report}
\usepackage{xcolor}
\usepackage[Kashida=on]{xepersian}
\settextfont[Scale=4.5,Colour=000001]{XB Kayhan}
\setlatintextfont[Scale=1.5,Colour=0000FF]{XB Kayhan}

\defpersianfont\XBKayhanEn[Scale=1.2,Colour=000001]{XB Kayhan}
\defpersianfont\XBKayhanIt[Scale=4.5,Colour=000001]{XB Kayhan Italic}
\defpersianfont\XBKayhanOb[Scale=4.5,Colour=000001]{XB Zar Oblique}
\defpersianfont\XBKayhanOl[Scale=4.5,Colour=000001]{XB Kayhan Pook}
\defpersianfont\XBKayhanSd[Scale=4.5,Colour=000001]{XB Kayhan Sayeh}
\defpersianfont\XBKayhanPo[Scale=4.5,Colour=000001]{XB Kayhan Pook}
\defpersianfont\XBKayhanSa[Scale=4.5,Colour=000001]{XB Kayhan Sayeh}
\defpersianfont\XBKayhanNa[Scale=4.5,Colour=000001]{XB Kayhan Navaar}

\def\SampleText{
  راهی جایی تابی چاپی چاههی تلاشهایی
  شتابهایی تابی چاپی راهی تلاشهــایی
  که کتابهایی که کلاههایی که کتابهایی }

\def\SampleTitle#1#2#3{{{\begin{latin}\XBKayhanEn Engine: {\color{blue}\texttt{#1,}} \\
     Style: {\color{blue}\texttt{#2,}} \\ Kashida: {\color{blue}\texttt{#3}}\end{latin}}}\hbox{}\vskip 5mm}

\setlength\parindent{0pt}
% \pagestyle{empty}
\setcounter{page}{16}
\let\tmppage=\thepage
\gdef\thepage{\scriptsize\lr\tmppage}

\begin{document}

\begin{latin}
\begin{center}
{\Huge\textsf{\XePersian} \\
 \vspace{20pt} Example of Use \\
 \vspace{20pt}\texttt{Engine: XeTeX {\normalsize using xepersian}} \\
 \vspace{20pt}\texttt{Kashida=leaders+hrule}} \\
 \vspace{20pt}\makebox{\textsf{File:} \texttt{TEXMFDIST/doc/latex/texnegar/xepersian-XB.tex}} \\
 \vspace{20pt}

{\Large
\begin{tabular}{ll}
  \textsf{Font:} & \textsf{XB Kayhan} \\
  \textsf{Font Scale:} & \texttt{4.5} \\
  \textsf{color:} &  \texttt{red}
\end{tabular}
}
\end{center}

\end{latin}

\color{red}
\newpage \KashidaOff \SampleTitle{XeTeX using xepersian}{Regular}{Off}               \par \SampleText

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Regular}{leaders+hrule On}  \par \SampleText

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Italic}{leaders+hrule On}   \par {\XBKayhanIt \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Oblique}{leaders+hrule On}  \par {\XBKayhanOb \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Outline}{leaders+hrule On}  \par {\XBKayhanOl \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Sayeh}{leaders+hrule On}    \par {\XBKayhanSd \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Pook}{leaders+hrule On}     \par {\XBKayhanPo \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Sayeh}{leaders+hrule On}    \par {\XBKayhanSa \SampleText}

\newpage \KashidaOn  \SampleTitle{XeTeX using xepersian}{Navaar}{leaders+hrule On}   \par {\XBKayhanNa \SampleText}

\end{document}