Note: You are currently viewing documentation for Moodle 1.9. Up-to-date documentation for the latest stable version is available here: wiki print.
Many wikis are intended to be read and updated online. It is among the many Web 2.0 technologies that normally do not depend on printing.
As a beginning step, copying wiki pages and assembling your own document in a separate word processor may be the fastest way to print the contents of a wiki.