2WA/2NJ/2RK
3-35
(3-2) Paper feeder (PF-740(B))
PWBs and Sensors
Figure 3-20
1. PF main PWB ....................................... Controlling the electric parts in the PF.
2. PF conveying cover switch ................... Breaks the safety circuit when PF conveying cover isopened, and
resets paper jam detection.
3. PF paper sensor 1 ................................ Detecting the presence of paper (cassette 3).
4. PF paper sensor 2 ................................ Detecting the presence of paper (cassette 4).
5. PF lift sensor 1 ...................................... Detecting the upper limit when lifting the bottom plate (cassette
3).
6. PF lift sensor 2 ...................................... Detecting the upper limit when lifting the bottom plate (cassette
4).
7. PF paper feed sensor 1 ........................ Detecting the paper jam in the paper feed section (cassette 3).
8. PF paper feed sensor 2 ........................ Detecting the paper jam in the paper feed section (cassette 4).
9. PF upper paper gauge sensor 1 ........... Detecting the paper gauge (cassette 3).
10. PF lower paper gauge sensor 1............ Detecting the paper gauge (cassette 3).
11. PF upper paper gauge sensor 2 ........... Detecting the paper gauge (cassette 4).
12. PF lower paper gauge sensor 2............ Detecting the paper gauge (cassette 4).
13. PF paper size detection switch 1 .......... Detecting the size of paper (cassette 3).
14. PF paper size detection switch 2 .......... Detecting the size of paper (cassette 4).
15. PF cassette detection switch 1 ............. Detecting the presence of cassette 3.
16. PF cassette detection switch 2 ............. Detecting the presence of cassette 4.
17. PF conveying sensor 1 ......................... Detecting paper jam in the vertical conveying section.
18. PF conveying sensor 2 ......................... Detecting paper jam in the horizontal conveying section.
19. PF conveying unit switch ...................... Detecting the presence of PF conveying unit.
Machine front side
Machine inside
Machine rear side
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