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1 December 1993
4.2 PAPER FEED ROLLER/UPPER SEPARATION ROLLER MECHANISM
[C] [A] [B] [D] [M] [L] [K] [J] [I] [H] [G] [E] [F]
The sector gear [J], located on the non-operation side, rotates the paper feed roller [M] and the upper separation roller [A]. When the paper feed solenoid [G] turns on, the link [F] is pulled. When the cam roller [D] is positioned on top of the paper feed roller cam [C], the sector stopper [E] turns counterclockwise as a clearance is formed between the pin [I] and the stopper [E]. Then, the cam roller [D] of the sector gear moves along the cam face of the paper feed roller cam [C]. When moving the cam roller [D] from the bottom to the top of the paper feed roller cam [C], the sector gear [J] turns clockwise and the gear [H] is turned counterclockwise. The rotation of the gear [H] is transmitted to the upper separation roller shaft [B] by a one-way clutch inside the gear [H], and the upper separation roller [A] turns counterclockwise. At the same time, the pulley [K] mounted on the upper separation roller shaft [B] turns, and the belt [L] rotates the paper feed roller [M] counterclockwise to feed the printing paper. When the cam roller [D] moves from the top to the bottom of the paper feed roller cam [C], the sector gear [J] turns counterclockwise and the gear [H] is turned clockwise. However, due to the one-way clutch inside the gear [H], the upper separation roller [A] and the paper feed roller [M] do not turn.
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