Ricoh FT5034 Service Manual page 119

Dirty Background
1 Charge Corona
Toner Shield
2
Glass
Image Density too
3
high
Seal on the Dev.
4
Unit
Exposure Lamp
5
To be continued on
the following page
Action
1. Clean the charge corona wire
2. Check the mounting position of the
wire
2-1. Clean the toner shield glass
2-2. Clean the surface of the mirrors
1. Adjust the image density
1. Check inlet seal and side seals
2. Clean the exit seal
1. Check the exposure lamp
2. Check the lamp regulator voltage
- 118 -
Remarks
After attaching the pad
soaked with launa oil,
don't attach the
exposure glass. Then
perform 10 copies in
free run mode.
Lamp regulator
output
adjustment
1. Open the front
cover and remove
the inner cover.
2. Make a copy at
image density level
4, and adjust the
lamp regulator
voltage, using the
OS-A3 chart
(greyscale level 2
should be faintly
visible).
Check the lamp
voltage.
(It should be less
than 160 V.)