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2.6 Document Scanning Sequence
2.6.1 Document Detection
When a document is placed into the document feeder, Document Sensor 1 (DS1) is activated and
you will hear the short beep.
2.6.2 Document Separation
Document separation is the process that allows a multi-page document to go through the scanner one
page at a time. Separation occurs through the action of the separator roller and retard roller.
As shows in the illustrations, documents in the feeder are pressed against the separator roller. The
bottom document is separated from the remaining documents by the friction of the retard roller.
2.6.3 Document Transport
Following document separation, the feed roller causes the document to advance. As it advances, the
leading edge of the document activates the Document Sensor 2 (DS2) sensor. Once DS2 is
activated, the feed roller continues to rotate until the document reaches the scan wait position. The
machine uses the distance from DS2 to the scan wait position and the diameter of the feed roller to
determine the number of rotations necessary to feed the document to the scan wait position.
2.6.4 Document Scanning
When the document reaches the scan wait position, the machine waits for the next command. It will
start scanning the document when either the start or copy key is pressed. The light from the scanner
lamp strikes the face of the document and is reflected into the lens through mirrors A, B, and C. In
case the light intensity along the length of the scanner lamp is not uniform, shading compensation is
provided to ensure even illumination.
As the reflected image passes through the lens, it is focused onto the charged coupled device(CCD).
The CCD then converts the dark and light areas of the image into electrical impulses, or image data.
Circuits on the main control PCB encode the image data and send it to the modem where it is
modulated. The modulated signal is then placed onto the telephone line by the NCU.
Содержание OKIOFFICE 120
Страница 7: ...vi ...
Страница 17: ...1 10 1 7 Dimensions Dimension in mm ...
Страница 23: ...1 16 1 11 ID Label Specification 1 12 Labels location ...
Страница 24: ...2 1 Section2 Machine Composition 2 1 Interconnect Block Diagram ...
Страница 25: ...2 2 ...
Страница 87: ...3 46 Unique Switch F 7 and F 9 Factory use only ...
Страница 190: ...5 60 Note If you re attach the feed roller B put the right and left nibs into the fixing hole as shown ...
Страница 195: ...5 65 10 Move the cassette PCB by sliding it 11 Disconnect the all connectors on the cassette PCB ...