Printing Options sets options for printing a notebook. Mathematica saves your new settings with the notebook, so it will be printed the same way in the future.
Print cell brackets
When checked, the cell grouping brackets are printed.
Print registration marks
When checked, Mathematica prints trim marks to indicate the corners of each printed page. The trim marks are useful for visualizing how a notebook would look when printed on paper of a particular size.
Note: You can simulate a smaller page size by changing the value of the option "PageSize".
Print multiple pages for wide cells
When checked, Mathematica prints as many pages as needed to show wide cells (for example, very wide graphics cells).
Determines how much white space will be left on the page after printing. Text that is set to word wrap will wrap to the printing margin width, not the window width.