Adf And Scanner Operation - Lexmark CX825 Service Manual

ADF and scanner operation

Flatbed scanner drive
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The flatbed scanner has a scanner lamp that is used to illuminate the surface of the document. The reflections
produced are processed to create the scan image.
For flatbed scan jobs, the flatbed scanner moves across the scanner glass area to scan the bottom side of the
document. The motor (FB scanner) controls the scanner position. The scanner is detected at its home position
by the sensor (FB scanner home).
For ADF scan jobs, the flatbed scanner stays at the left side to do the first scan (bottom side) of the document.
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1 Sensor (FB scanner home)
2 Scanner glass
3 Motor (FB scanner)
4 Sensor (FB paper length)
5 Scanner lamp
6 Flatbed scanner
Appendix C: Theory of operation
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1460
7564
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