1, Specifying STARTPAGE= NO prevents forced page breaks. You can turn on forced page breaking again by specifying STARTPAGE=YES. You can insert a page break at any time by specifying STARTPAGE=NOW.
2, When you use break statement, remember to define that variable (e.g., "pagen" for you) as group or order variable.
/* Necessary to force a new page */
ods pdf startpage=now;
proc print data=sashelp.cars(firstobs=10 obs=20 keep=make model);
run;
proc print data=sashelp.cars(firstobs=10 obs=20 keep=make model);
run;
ods pdf close;