{HEAD ~ An electrostatic copier} having {TAIL ~ a control system} wherein switches are used to detect conditions that would lead to paper jams 
having
{ HEAD ~ An electrostatic copier } having { TAIL ~ a control system } wherein switches are used to detect conditions that would lead to paper jams
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH