Specifications

9.7 ID SENSOR (Vsg) ADJUSTMENT (SP MODE #54)
When: 1. Check Vsg at every call, and adjust Vsg if it is
out of adjustment standard.
2. At replacement of the following parts:
• ID sensor
• Main board
• Drum
3. A toner supply problem occurs.
Purpose: To makes sure that ID sensor mode works
correctly.
Adjustment
Standard:
Vsg = 4.0 ± 0.2 volts
Measure: SP Mode #54
How: Changes the light intensity of the ID sensor LED.
The Vsg voltage is displayed in the magnification
indicator.
1. Turn off the main switch and clean the following parts:
Item No. Section Method
(1) Optics (mirrors, lens, reflectors,
shield glass, exposure glass)
Damp cotton, silicine
cloth, and blower brush
(2) ID sensor Blower brush
(3) Corona wires (charge, transfer,
and separation) and casing
Alcohol or water
(4) QL, PTL, Erase Lamp Dry Cloth
2. Reinstall all the parts.
3. Place five sheets of A3 (LDG) paper on the exposure glass.
4. Check Vsg using SP mode #54. Adjust Vsg by turning VR102 (main
board) if Vsg is out of adjustment standard.
VR102
1 December 1990
5-95