Ricoh Aficio FX10 Service Manual page 24

OVERALL MACHINE INFORMATION
VIDEO DATA PATH
Reduction and Enlargement
Sub-scan: The machine changes the scanner motor speed.
Main-scan: The machine deletes certain specified bits from each line to re-
duce the image. The machine changes the laser clock pulse for each pixel to
enlarge the image.
During reduction and enlargement, the scanning positions of ADF and book
scanner are different as shown. This is because the document set position for
ADF is at the center of the scan line, while the book scanner is from the indi-
cated corner.
ADF
5 0 %
Book Scanner
5 0 %
1-16
June 10th, 1997
2 0 0 %
H523v509.wmf
2 0 0 %
H523v510.wmf