Ricoh Aficio 1013 Service Manual page 158

SCANNING
6.7.2 SCANNER DRIVE
[J]
[F]
[H]
[A]
[D]
[I]
[B]
[G]
[C]
[K]
[E]
B046D001.WMF
The scanner motor [A] (a stepper motor) drives a gear that turns a small drive belt
[B], driving the scanner drive shaft [C]. Pulleys [D, E] on the ends of the shaft
drive timing belts [F] and [G], driving the 1st scanner [H]. The first scanner is
secured to timing belts [I] and [J], which drive the 2nd scanner [K] through the 2nd
scanner's pulleys.
During scanning in book mode, the 2nd scanner moves at half the speed of the
1st scanner. Scanner speed increases for reduction printing, and drops for
enlargement printing—generating reduction or enlargement in the sub-scan
direction. (The FCU uses image processing to generate the corresponding
reduction or enlargement in the main-scan direction.)
You can adjust magnification in the sub-scan direction using SP4-101 (which will
adjust the motor speed). You can adjust in the main scan direction using
SP4-008.
For information about scanning in DF mode, refer to the ADF manual.
B044/B045/B046 6-16 SM