geometry options problem

Question

I am using geometry package with \LoadClass[twocolumn]{article}. But when I use geometry, the options for left,right,top,bottom are effecting only in even pages not in odd pages.

How can i change globally in geometry package.

the Class file:

\LoadClass[twocolumn]{article}

\RequirePackage{geometry}
\geometry{
left={15mm},
right={15mm},
top={15mm},
bottom={15mm},
}

Answer 1

The following example shows that everything is as expected:

19551.cls

\LoadClass[twocolumn]{article}

\RequirePackage{geometry}
\geometry{
left={15mm},
right={15mm},
top={15mm},
bottom={15mm},
}

19551.tex

\documentclass{19551}
\geometry{showframe}
\usepackage{kantlipsum}
\begin{document}
\kant[1-20]
\end{document}

The first two pages side by side