Light Source - Ricoh PRIPORT VT 2000 Series Service Manual

28 February '91

2.2 LIGHT SOURCE

[D]
[B]
[K]
[B]
The high frequency fluorescent lamp [A] is used as a light source for the
high speed reading of 16 pixels/mm. The light exposes at two angles using
a sub mirror [B] to prevent the shades at the edges of paste-ups on the
original [C]. The original guide plate [F] blocks part of the direct light from
the fluorescent lamp to make the light intensity of both direct and reflected
light the same. A heater [E] is wrapped around the fluorescent lamp. It
prevents light intensity reduction due to low temperature.
<Fluorescent Lamp>
Form: 15.5
Lamp Voltage : 59
---- Platen Cover ----
The platen cover [D] is used as a standard white level reference to correct
for shading distortion.
[G]
[A]
[D]
[E]
x 436 mm
∅
6 V
±
[H]
[C]
[F]
[A]
2-12
[I]
[J]
[G]: Exposure Glass
[H]: Lens
[I]: CCD
[J]: A/D Converter
[K]: Mirror