Ricoh Aficio FX10, Service Manual

Page: 35 / 284

3. Scanner Position Adjustment
When the machine is turned on, the machine detects scanner home posi-
tion.(scanner initialization)
During scanner initialization, the scanner moves to the right until the home po-
sition sensor turns off. Then it changes the direction until the home position
sensor turns back on.
At the start of scanning, the scanner moves from the scanner home position
([E] in the above figure), to the position [B] to scan the black sheet to adjust
the black level. At that time, the xenon lamp is turned on. Then the scanner
moves to the positions [C] to [D] to adjust shading.
•
Book Scanner
After shading, the scanner moves to the scanning start position (posi-
tion F) to start scanning. Shading is done before scanning each page.
•
ADF
After shading, the scanner moves to the ADF scanning position (posi-
tion [A]) and stays while the document is fed through the ADF. Shading
is done only once before scanning.
Exposure Glass
[A] [B] [C] [D] [E] [F]
Black Sheet White Shading Sheet
H523D508.wmf
DETAILED SECTION DESCRIPTIONS June 10th, 1997
SCANNER
2-6