F. means, operative upon the occurrence of {HEAD ~ a malfunction} in {TAIL ~ said signal generating means} for continuing operation of said writer means until the writer is ready to form images of a page in the predetermined sequence which page has not yet been stored in said buffer memory 
in
F. means , operative upon the occurrence of { HEAD ~ a malfunction } in { TAIL ~ said signal generating means } for continuing operation of said writer means until the writer is ready to form images of a page in the predetermined sequence which page has not yet been stored in said buffer memory
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH