Scanner Drive - Gestetner B130 Service Manual

6.10.2 SCANNER DRIVE

[I]
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.
SM
CÓPIA NÃO CONTROLADA
[H]
[G]
[E]
6-19
CÓPIA NÃO CONTROLADA
[J]
[F]
[A]
[B]
[C]
[K]
B046D001.WMF
B129 Series/B044 Series
SCANNING
[D]