Page Layout ⇒ Change page numbering style for \chapter

[Egor_MIPT]

Dear colleagues,
I have a trouble with changing header style of \chapter... I need to change position of page number from the right to the center.
As I know \chapter uses 'plain' style by default. Thus, I use the further code to modify it:

\usepackage{fancyhdr}
\fancypagestyle{plain}{
\fancyhf{}
\fancyhead[C]{\thepage}
\renewcommand{\headrulewidth}{0pt}
\rhead{\thepage}}

But... After compilation I have two page numbers in my header at the right and at the center. Seems like in some reasons \fancyhf{} command doesn't clear the header.

chqpter.png (40.87 KiB) Viewed 1773 times

Please, help me delete the number at the right position and leave only at the center.

Sincerely,
Egor

[Ijon Tichy]

Have you noticed the \rhead{\thepage}?

BTW: I cannot test, whether or not removing this will help, because you've not posted a minimal working example, which is always recommended.