The original feed section consisting of the parts shown in the figure feeds and conveys the original on the original tray to the original conveying section by the rotation of the DF forwarding pulley and DF feed roller. The 2nd side of the conveyed original is scanned when passing the CIS and the 1st side at the optical section (CIS) in the main unit when passing the DF slit glass. The original already scanned is ejected to the original exit tray by the exit roller.
IM 600F/600SRF only: Double-feed check signals, which are emitted by the DF double feed detector TX PCB (PCB25) and received by the DF double feed detector RX PCB (PCB26), are used to detect original double-feeding.
| No. | Name | No. | Name |
|---|---|---|---|
| 1 | DF pickup pulley | 15 | DF conveying pulley B |
| 2 | DF feed roller | 16 | DF conveying roller C |
| 3 | DF pickup holder | 17 | DF conveying pulley C |
| 4 | DF friction pad | 18 | DF reading pulley |
| 5 | DF separation pad | 19 | DF original timing sensor (S5) |
| 6 | DF actuator (DF original sensor (S1)) | 20 | DF scanning guide |
| 7 | DF registration roller A | 21 | DF conveying roller D |
| 8 | DF registration pulley A | 22 | DF conveying pulley D |
| 9 | DF registration sensor (S2) | 23 | DF actuator (DF exit sensor (S4)) |
| 10 | DF backside original timing sensor | 24 | DF exit roller |
| 11 | DF CIS contact glass | 25 | DF exit pulley |
| 12 | DF CIS (PCB27) | 26 | DF original width guide |
| 13 | CIS roller | 27 | DF original tray |
| 14 | DF conveying roller B | 28 | DF exit tray |
