Automatic document feeder paper path
Figure 1-58 Automatic document feeder paper path
5 4 3 12
6
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8
9
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11 12
Table 1-31 Automatic document feeder paper path
Item Description Item Description
1 Input tray 7 Front-side background selector
2 Separation pad 8 Front-side scan module
NOTE: This scan module (automatic document
feeder glass) is located in the scanner base.
3 Pick roller 9 Postscan drive roller
4 Feed roller 10 Back-side scan module
5 Deskew drive roller 11 Back-side background selector
6 Prescan drive roller 12 Exit drive roller
Automatic document feeder simplex operation
Following is the basic sequence of operation for a automatic document feeder simplex job.
1. ADF jam cover sensor cover door detects when cover door is in closed position.
2. The ADF paper present sensor activates when paper is loaded onto the input tray.
3. The pick motor rotates to lower the pick roller and starts to pick the loaded paper.
4. The ADF multi-pick (ultra sonic) sensor activates when the leading edge of the media is driven past the
sensor. The product firmware registers a successful pick operation.
5. The ADF paper path deskew activates when the leading edge of the paper passes it. The product
firmware registers the leading edge of the paper position.
6. The leading edge of the paper is driven into the nip point of the deskew drive roller and the deskew
pinch rollers. A buckle of paper is created by the nip point for pick-skew correction.
ENWW Scanning/image capture system (M680) 79
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