The .begin page command executes a .break command followed by an advance to a new page. The page number is incremented and the page heading (if set) is printed.
.begin page
.bp
The .begin page command must begin in position one of the attribute. If it is in the middle of an attribute, it is ignored and printed as text. The text immediately following the .begin page command is printed on the next page.
The .begin page command terminates the current page, prints the optional footing, ejects a page, increments the page counter, and prints the optional heading.
.nf This is page one. .begin page This is page two attribute 1. This is page two attribute 2. .bp This is page three.