This is more a printer problem, but I have no way to solve it on the printer side.
When printing a two sided document, the sides do not match vertically. That means for example the line of \pagestyle{fancy}
is not continuous from the left to the right page but shifted by 2 mm (0.08 inches). Is there a way take this into account when generating the file?
\addtolength{\voffset}{-2mm}
shifts all pages, not only the e.g. odd ones.
\documentclass{book}
\usepackage{lipsum}
\usepackage{fancyhdr}
\pagestyle{fancy}
\usepackage[a4paper]{geometry}
\addtolength{\voffset}{-2mm}
\begin{document}
\lipsum
\end{document}