When cassette tray is opened and paper is loaded and the tray is closed, the base plate gets unlocked to
lift the papers toward pickup roller (D-roller) and enables feeding stand-by status. When feeding signal
is sent from the machine, solenoid is operated and segment gear gets unlocked to rotate pickup roller to
picks up the paper on top in the tray to the machine.
At here, the paper fed by the feeding pressure between pickup roller and base plate is fed one by one
with the friction from the friction pad.
Paper is fed to return roller when pickup roller rotates once and the paper after that goes through return
roller and Registration roller for feeding.
When the pickup roller rotated once due to paper or other feeding condition, but paper was not fed to
return roller, the pickup roller rotates once more to pick up paper.
When all loaded papers were used, the paper detecting sensor detects it and indicates that all papers
have been used.