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REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)
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15. REVERSING AUTOMATIC DOCUMENT FEEDER (RADF)
15.1 General Description
The Reversing Automatic Document Feeder (RADF) transports original sheets to the RADF original
glass and then to the original exit tray after they have been scanned. In scanning double-sided
originals, the original is reversed in the exit paper path exclusive to original reversing after the back side
has been scanned and then it exits. Therefore the next original can be scanned without waiting for the
previous one to exit.
Fig. 15-1
No. Name No. Name
1 Original tray 19 Original empty sensor (SR3)
2 Original exit tray 20 Original reading end sensor (SR4)
3 Original glass 21 Original registration sensor (SR5)
4 RADF original glass 22 Original width detection sensor-1 (SR6)
5 Pickup roller 23 Original width detection sensor-2 (SR7)
6 Feed roller 24 Original width detection sensor-3 (SR8)
7 Separation roller 25 Original intermediate transport sensor (SR9)
8 Original registration roller 26 Original reading start sensor (SR10)
9 Intermediate transport roller 27 Original exit/reverse sensor (SR11)
10 Reading start roller 28 Original exit sensor (SR12)
11 Reading end roller 29 Original jam access cover opening/closing sensor (SR13)
12 Reverse roller 30 Original reverse unit opening/closing sensor (SR14)
13 Reverse registration roller 31 Jam access cover opening/closing switch (SWR1)
14 Exit intermediate roller 32 RADF opening/closing switch (SWR2)
15 Exit/reverse roller 33 Reverse paper path
16 Exit roller 34 Exit paper path
17 Original tray sensor (SR1) 35 RADF opening/closing sensor (SR15)
18 Original tray width sensor (SR2)
1
2
32 35
34
56
7
8
9
10
11
21
25 30
12
13
14
15
16
17
18
19 29
31
3334
20
22, 23
24
26
27 28