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1 Nov. '87
2-4 IMAGE DENSITY SENSOR CHECK AND ADJUSTMENT
NOTE: The ID sensor adjustment is required in the following situations:
a) When the Main PCB is replaced.
b) When the drum has been replaced and Vsg is out at standard.
c) When a problem with toner supply occurs, and checking the ID
sensor voltage shows the Vsg is out of standard.
ADJUSTMENT STANDARD: 4.0 ±0.2 (CC ± 10)
METHOD A: Reading from the CPU
1. Clean the following parts:
a) image density sensor
b) optics
c) charge corona wire
d) quenching lamp.
2. Place 2 or 3 sheets of white paper
lower the platen cover.
or LT) on the exposure glass and
(A4
3-14
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