Muratec MFX-1330 Specifications download pdf (Page 20)

2.6 Document Scanning Sequence

2.6.1 ADF Detection

When a document is placed into the document feeder, Document Sensor 1 (DS1) is activated and you

will hear the short beep.

The document will be transferred when the start key is pressed.

Document separation is the process that allows a multi-page document to go through the scanner one

page at a time. The bottom document is separated from the remaining documents by the friction of the

separator pad.

Following the 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 position. The machine uses the

distance from DS2 to the scan position and the diameter of the feed roller to determine the number of

rotations necessary to feed the document to the scan position.

When the document reaches the scan position, 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.

When DS2 detects the trailing edge of the document, the image signal output is turned off. The scanner

continues to remain active for a few more seconds in case there is another document to follow.

The scanned document is discharged through the document exit by the exit roller.

MFX-1330

Pickup roller

DS1 (Feeler)

Separator roller

Separator pad

Feed roller

DS2 (Feeler)

Press roller

CCD

Mirror B

Mirror A

Mirror C

Scanner unit

Lens

Home sensor

Exit roller

F-300