Table of Contents
Advertisement
SCANNER UNIT
2.3.8 OTHERS
Anti-condensation Heater
There is an anti-condensation heater [A] on the right side of the SBU. It turns on
when the main switch or operation switch is off, to prevent moisture from forming
on the optics.
Fans
1. Optics Cooling Fans
The optics cooling fans [B] are on the left side of the optics cavity. There fans
draw air into the optics cavity to prevent the exposure lamp and optics cavity
from overheating during copy cycles. They turn on at the same time as the
exposure lamp, and they turn off 10 seconds after the exposure lamp turns off.
2. IPU Cooling
The IPU cooling fan [C] is on the left rear side of the optics cavity. This fan
moves air out of the optics cavity to keep the IPU from overheating. This fan is
always on when the operation switch is on. Normally it turns at half-speed.
However, it goes to full-speed when the exposure lamp turns on, and it returns
to half speed 10 seconds after the exposure lamp turns off.
[B]
[C]
A269D004.WMF
2-30
30 March, 1999
[A]
Advertisement
Table of Contents
