Planmeca Proline EC ceph, Technical Manual

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Chapter G - TROUBLESHOOTING
Planmeca Proline EC X-ray unit G-11
PROBLEMS IN RADIOGRAPHS
Technical Manual
9.3 Exposure on - no picture
9.4 Very light radiographs
9.5 Stripes on the film
9.6 Exposed area incorrectly limited
Film has certain tolerance in the holder which causes considerable variations.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Film unexposed Primary slot does not let in radi-
ation to film.
In the developer the fixative
and developer changed places.
Film completely black Light leakages to dark room.
Film otherwise exposed.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Very light radiographs Film cassette upside down in
its holder.
Primary slot positioned so that
the radiation beam goes trough
the secondary slot.
Secondary slot moved.
Wrong film/intensifying film
combination.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Horizontal stripes From developing machine.
Primary slot tilted so that part of
the film meets secondary slot.
Patient has jewels, large fillings
in teeth, etc.
Vertical stripes From rolls of developing
machine.
Cassette mechanism gets tuck.
Generator working improperly.
SYMPTOM POSSIBLE REASON CORRECTIVE ACTION
Radiograph incorrectly limited
in vertical direction. Child limit chosen by accident.
Primary slot limits adjusted
incorrectly.