Erase Lamp - Ricoh FT6645 Manual

23 April 1993
1.4 OPTICS
1. When installing the exposure glass, make sure that the mark (red for the
A095 and white for the A096) on the edge of the glass faces up. This side
has received a special treatment to be smoother and generate less static
electricity.
2. When moving the 1st or 2nd scanners, always hold them at the center.
Move them slowly, carefully, and gently.
3. Do not bend or crease the exposure lamp flat cable.
4. Do not touch the following parts with bare hands:
a) Reflectors
b) Exposure lamp
c) Mirrors and lens
d) V , ADS and V
D
5. To clean the mirrors and lens, use only a clean soft cloth damped with
alcohol or water.
6. Do not turn the vertical lamp position adjusting cam. Adjusting the vertical
lamp position is very difficult because the filament cannot be seen clearly
as the lamp is frosted.
7. The mirror surface with the reflective coating must face the light path. The
spring plates must contact the reverse side of the mirror (the side without
the reflective coating).
8. Because the toner shielding filter is coated with an anti-static solution
(which is removed when wiped with water or alcohol) clean the toner
shielding filter very gently to prevent generating static electricity, and wipe
with dry cloth.

1.5 ERASE LAMP

1. A narrower lead edge erase margin increases the possibility of fusing
jams. The margin should be at least 1.0 mm.
2. After cleaning the erase lamp unit, rub it lightly with your finger to
discharge any static electricity on the unit surface.
3. Use only a dry cloth to clean the potential sensor.
patterns
L
4-3
SERVICE REMARKS