This file forms a character set for banners that should work on almost any printer. Differs from banner program characters, they have an extra line above for characters like %,},etc and vertical bar is split in banner program but full here.
Index: lpdchar.c =================================================================== RCS file: /cvs/src/usr.sbin/lpr/lpd/lpdchar.c,v retrieving revision 1.6 diff -u -p -r1.6 lpdchar.c --- lpdchar.c 27 Oct 2009 23:59:52 -0000 1.6 +++ lpdchar.c 27 Jan 2016 21:31:49 -0000 @@ -1017,7 +1017,7 @@ const char scnkey[][HEIGHT] = /* this is c__1____, c__1____, c__1____, - c___11__ }, /* } */ + c___11__ }, /* { */ { c___1___, c___1___,