3. Operations of each section

A. Paper feed, paper transport section

(1) Outline

The paper feed tray contains about 200 (250) sheets of paper.

The paper is passed to the transfer section by the paper feed roller.

The paper feed operation is controlled by the paper feed roller clutch and the paper feed roller clutch solenoid. The paper feed clutch employs the mechanical spring clutch.

Paper mis-feed and paper jam are detected by the paper empty sensor and the paper entry sensor. The paper size (width) is detected by the paper size (width) detector to prevent toner from attaching to the area over the paper width.

(2) Major parts

2)

1) PE SENSOR

3)

9) PAPER SIZE SW

 

10)

11)

4)

4)

 

 

5) PUS

8)

 

6)

6)

 

 

 

 

7) PIN SENSOR

 

 

 

13)

12)

13)

 

 

 

 

14)

16)

 

 

16)

19)

 

18)

 

15)

8)

 

 

 

12)

 

17)

 

 

 

19)

 

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Sharp AL-840, Digital Copier, AL-800 service manual Paper feed, paper transport section, Outline, Major parts, Pus