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Functional Overview6-12
Paper Paths and Components
Output Transmission
Number Of Teeth
Function S/No Gear Name
Big Small
(1) Gear-Drive roller 80
(2) Gear 1-LF 60 20
Line feed
Transmission
(3) LF Motor Pinion 16
(4) Gear-OP 1 40 27
(5) Gear-Rock 31
(6) Gear-OP2 81
Output
Transmission
(7) Gear-OP 3 81
Diameter of drive roller = 38.808 mm
Diameter of output roller = 19.800mm
Gear ratio of Gear-OP3/LF Motor Pinion = (40/16) * (81/27) = 7.5
Gear ratio of Gear-Drive roller/LF Motor Pinion = (60/16)*(80/20) = 15
Gear ratio of Line feed/Output wrt. LF motor = 15/7.5
Linear velocity of output roller/ Linear velocity of drive roller
= (15/7.5) *(19.8/38.808) = 1.02
Hence the linear velocity of output roller is 2% faster than drive roller.