Muratec F-565 Specifications download pdf (Page 54)

2-1

2 Machine Composition

2.1 Document Scanning Sequence

2.1.1 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 top document is separated from the remaining documents by friction of the

separator roller.

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-2050 / MFX-1450

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-565 / F-525