Ricoh FT4460, Service Manual, Page: 68 / 413

28 February 1989
3.8 RED ERASE MECHANISM
This model has a red erase function. In red erase mode, the red erase
solenoid [A] is energized (ON) to move the red filter [B] into the optical path.
(Normally, the green filter [C] is in the optical path.)
The red filter allows only red to pass through, thus decreasing the contrast in
light intensity between the red and white areas on the original.
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