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