No. Description No. Description
1 Sheet-through exposure glass 9 Sensor board unit (SBU)
2 Exposure glass 10 CCD
3 2nd mirror 11 Pre-sensor lens
4 Scanner lamp unit (LED) 12 Lens
5 4th mirror 13 1st mirror
6 3rd mirror 14 5th mirror
7
Scanner motor
15
Anti-condensation heater* (Scanner
heater)
8 APS sensors
*Service part
Reading system
Two scan modes are available: book mode (platen mode) and ADF mode (sheet-through method).
In book mode (platen mode), the scanner scans the document from left to right.
When the ADF is used (ADF mode), the scanner is fixed in the home position on the left side, and the
document is transported and read (sheet-through method).
7. Detailed Descriptions
1194