Scanning System Components - Samsung MultiXpress M537x series Service Manual

2. Product Specifications and Description

2.9.2. Scanning System Components

The following shows the construction and purpose of the scanning system :
1) CCDM
The CCDM reads the original on the scan glass. The CCD board in the CCDM changes the reflected light to the
electrical signal. It consists of the CCD, ADC, Logic IC. The CCD changes the reflected light to 3–color(Red, Green,
Blue) analog signal. The ADC changes the analog signal to the digital signal.
2) Drive Unit
The drive unit consists of the step motor, pulley, and belt.
The CCDM movement by driving the belt scans the document on the glass.
3) Auto Paper Sensor
The APS sensor detects the original size.
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