\documentclass[a4paper,10pt,BCOR=10mm,twoside]{scrartcl}

\parskip=10mm

\usepackage{fullminipage}
\usepackage{xcolor}

\newdimen\mydimenkern \mydimenkern=0pt
\newdimen\mydimensize \mydimensize=1pt
\newcount\mycount \mycount=0

\begin{document}

\begin{fullminipage}
  \loop\ifnum\mycount<5500
    x
    \advance\mycount by1
  \repeat
\end{fullminipage}

\begin{fullminipage}[top=1cm,left=1cm,right=1cm,bottom=1cm]
  upper left\hfill upper right
  \vfill
  \centering
  center\\
  (all margins: 1cm)
  \vfill
  lower left\hfill lower right
\end{fullminipage}

\begin{fullminipage}[top=1cm,left=1cm,right=1cm,bottom=1cm]
  \rule{\hsize}{\vsize}
\end{fullminipage}

\begin{fullminipage}[bgcolor]
  \color{white}%
  \loop\ifnum\mycount<14
    \par\nointerlineskip\leavevmode
    \kern\mydimenkern\rule{\mydimensize}{\mydimensize}%
    \advance\mydimenkern by\mydimensize
    \mydimensize=1.5\mydimensize
    \advance\mycount by1
  \repeat
  \vfill
  \rule{3pt}{3pt}\hfill\rule{0.96\hsize}{3pt}\hfill\rule{3pt}{3pt}
\end{fullminipage}

\end{document}
