Brother International HL 5030 Service Manual - Page 89
Paper Transfer, 2.2.1 Paper supply, 2.2.2 Paper registration, Paper supply
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HL-5030/5040/5050/5070N SERVICE MANUAL 2.2 2.2.1 Paper Transfer Paper supply The paper pick-up roller picks up one sheet of paper from the paper cassette every time it is rotated and feeds it to the paper feed roller. First feed roller First feed pinch roller Paper feed pinch roller Paper feed roller Regist front actuator Paper pick-up roller Pressure plate Separation pad Fig. 3-32 The paper is gripped between the paper pick-up roller and the separation pad and separated into individual sheets. The pick-up roller is directly connected to the clutch mechanism, whose rotation is stopped by the stopper arm. When the pick-up solenoid is activated, the clutch mechanism is engaged by the solenoid action and the paper pick-up roller is driven. The paper drawn out of the tray by the pick-up roller pushes against the regist front actuator and the paper top position/absence of paper is detected by sensing the motion of the actuator. 2.2.2 Paper registration After the paper top position is detected by the regist front actuator, the paper, separated into individual sheets by the paper pick-up roller, is fed further for a specified time, and the paper top position reaches the paper feed roller so that the paper skew is adjusted. Then, the solenoid is turned off, the paper feed roller starts turning, and the paper is fed to the transfer block in the drum unit. Photosensitive drum Transfer roller Regist rear actuator Regist front actuator Paper feed roller Fig. 3-33 The regist rear actuator in the path from the feed roller to the transfer roller controls the first print position on the paper. 3-21