Ricoh FT5034 Service Manual page 32

When the second scanner moves from enlargement to reduction or from reduction to
enlargement, it does not move to the home position.
NOTE
1) When the zoom key is pressed, the buzzer rings at reproduction ratios between
50 ~ 155% but does not ring at 156 ~ 200% and the speed of the reproduction
ratio indicator is higher.
2) The effective original area is restricted at reproduction ratios of 156 ~ 200%. This
causes partial enlargement because the lens restricts exposure lamp movement.
ex): Effective original area at 200% enlargement.
Copying can be in the range as shown.
With 200% enlargement, an A5 original
can be copied onto A3 paper but the
trailing 84 mm does not appear on the
copy image. So, the trailing 42 mm of the
A5 original is not copied.
Formula of the effective vertical
enlargement area:
180
Where M: reproduction ratio
- 31 -
– 180 M + 438
M
(200% is 2)
180: focus distance
438: maximum amount of
movement