# numbers of pages don't appear on pdf printed

I created a document in latex. The numbers of pages appears on pdf, but I printed the pdf and numbers don't appear.

Somebody can help me ?

Example of one of my pages:

my preamble code:

\documentclass[12pt,twoside,a4paper,openright]{report}
\usepackage{color}
\usepackage[portuguese]{babel}
\usepackage[utf8]{inputenc}
\usepackage[official]{eurosym}
\usepackage{gensymb}
\usepackage[lmargin=3.0cm,rmargin=2.0cm,tmargin=2.0cm,bmargin=2.0cm]{geometry}
\usepackage{fancyhdr}
\usepackage{graphicx}
\graphicspath{  {fig/} }
\usepackage{mathtools}
\usepackage[round]{natbib}
\usepackage{xr}
\usepackage{siunitx}
\usepackage{booktabs, multicol, multirow}
\usepackage{pdflscape}
\usepackage{emptypage}
\usepackage{epstopdf}
\usepackage{setspace}
\usepackage{nomencl}
\usepackage{tabularx}
\usepackage{amsmath}
\usepackage{booktabs}
\usepackage{ragged2e}
\usepackage{tikz}
\usepackage{gensymb}
\usepackage{chemformula}

\onehalfspace

\pagestyle{fancy}
\fancyfoot{}
\fancyfoot[RO,LE]{\thepage}

\begin{document}
\pagenumbering{roman}

\tableofcontents
\listoffigures
\listoftables

\cleardoublepage
\clearpage
\pagenumbering{arabic}

\input{Intro}

\end{document}

• Are the page numbers appearing so close to the margin that they cannot be printed by the printer? This is the most likely explanation... – cslstr May 9 '14 at 18:34
• probably, but how I can check this problem ou change ? – user46548 May 9 '14 at 18:36
• Hard to tell without a MWE that illustrates your page geometry. – cslstr May 9 '14 at 18:37
• I edited my question with my code. Can you help me ? thanks – user46548 May 9 '14 at 18:44
• Try adding the includefoot to the existing options of geometry so that the footer is actually 2cm from the bottom, rather than the footer being included in the 2cm bottom margin. – Werner May 9 '14 at 18:44

By default, geometry's margin settings exclude the header/footer. as such, even though you specify a top/bottom margin of 2cm, the distance from the page boundary to the first textual component would be less. To be more precise in terms of this placement, geometry provides the keys includehead, includefoot, and includeheadfoot to allow the user to include either the header or footer or both in the calculations for the margins. The following is taken from the geometry documentation:
Using your case as an example, the impression is that the 2cm bottom margin puts the page number outside the printing margin for the printer. Adding includefoot (at least, but perhaps includeheadfoot) to your geometry settings should push the footer into the printing region.