Film
Tooth of sprocket
Roller guide S1
Flange
Perforations (holes)
Sprocket
Tooth of sprocket
No gap
Film
Flange
Gaps
No gap
Roller guide S2
Film entrance
DEGITAL FILM SOUND READER
Drum
Roller
Film retainer roller
guide T1
Film exit
1-28 (E)
DFP-R3000