Ricoh M5 Service Manual page 66

Exposure Glass
The master's rotation speed is the same as the forward speed of the slider. So, after exposure, the
charge pattern remaining on the master surface is an exact mirror replica of the original image as
This charge pattern is called the latent image.
shown above.
This model uses a photos ensor to monitor the intensity of the light output from the exposure
If the intensity of the light decreases
lamp.
detects the' change and the
A 5-watt heater is used to warm up the exposure lamp.
lamp's light intensity within the compensation range of the photosensor. The warm up time
depends on the intensity of the exposure lamp output.
the light intensity is too low for the selected Image Density level, the exposure lamp turns on and the
selected Image Density indicator blinks.
correct light intensity for the selected image density level is reached.
Original
I
I
Copy Paper
(such as
CPU
increases the voltage to the exposure lamp.
At this time the slider waits
3 - 9
when the
lamp surface is dirty), the sensor
This decreases the time required to bring the
If the exposure intensity sensor detects that
the home position until the
in
25,
May, 1985
Slider
I