The actual material being printed on is usually paper which is out of wood, how ever the printer may be made out of metal, and I am confused on which one you are asking about.
<span>Decorative patterns should be selected to harmonize with structural patterns.
Structural pattern is the main pattern that eases the design. If we wanted to add a decorative pattern into it, we have to make sure that the decorative pattern and the structural pattern enhance one another and not making both of those patterns become redundant</span>
Religious themes that were meant to both instruct and fascinate. Hope this helps !