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Confidential
3.2.2 ADF unit
The ADF unit is equipment which sends one document or the document for every plurality to
the ADF scanning part of the document scanner unit, and performs continuous scanning.
â– Performance of the ADF
- The number of maximum capacity: Up to 35 sheets
- Maximum resolution: Up to 1,200 (main scanning) x 600 (sub scanning) dpi
- Maximum scanning speed: 17 pages/minute (Letter size) 16 pages/minute (A4 size)
(Simplex scanning)
- Maximum input media size: Width 215.9 mm, Length 355.6 mm
- Minimum input media size: Width 147.3 mm, Length 147.3 mm
(1) Function of each roller
- Suction roller
Suction roller sends the inserted document to the inside of the ADF.
- Separation roller
Separation roller separates the sent document one by one.
- Paper feed roller
Send the document.
- Ejection roller
Eject the document.
(2) Function of each sensor
- Document front sensor
Detects whether the document is set in the ADF.
- Document rear sensor
Detect the timing of the scanning start of the document.
- ADF cover open sensor
Detects whether the ADF cover is opened or not. If the ADF cover is not closed,
scanning from the ADF will not start.
(3) Function of each motor
- ADF motor
Driving source of overall ADF.
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