Light Lntensity Adjustment - Ricoh FT5540 Service Manual

7.5 Light Intensity Adjustment
When: Every call
To maintain the correct light intensity.
Purpose:
Target:
Second level of the standard test chart is slightly
visible or there is no background on the copy when
the second ID level is selected.
Measure: SP 48
How: Changes the lamp regulator output voltage.
1. Clean the optics, ID sensor, and charge corona wires.
2. Check/adjust uneven exposure and horizontal magnification.
3. Select the fourth manual ID level and make ten A3/LDG copies to stabilize drum sensitivity.
4. Select the second manual ID level and make three A3 copies.
5. Adjust the light intensity using SP 48.
5-53
31 August 1989