Xerox 2510 Service Manual page 288

13. (Figure 6): Adjust the charge voltage.
d. Wait 15 seconds, and then select PEAK
HOLD
(
+
) on the DMM.
TP 1 C
ADJUST CHARGE
VOLTAGE:
e. Wait 10 seconds and record the meter
readings.
If the voltage measured in Step 15e
is
more than 0.300
VDC,
go to the
CQ27
Exposure
RAP.
I . Solocl ouch sul-polnl from 9 l o 1,
pressing the
Start
button, and
recording the DMM reading after each
set-point.
VDC
Figure 6. Charge Voltage Adjustment
14. Press the Stop button.
Q
Do not disturb DMM or leads when
using PEAK HOLD to adjust the
exposure voltage; any movement will
affect the reading.
IS. Adjust the exposure voltage as follows.
a. Select test 5.
b. Press and hold the
Start
button for one
revolution of the photoreceptor
drum.
c. Select 9 and press
Start.
19. Press Stop and switch off the power.
20. Remove the electrometer.
21. Install:
the developer module.
the document transport belt.
all the covers
22. Switch the copier ON.
23, Make one copy of the test pattern
(82E5020) and check the copy quality.
g. Stop at the set-point that displays a
voltage reading of 0.025 t o 0.050 VDC
more than set-point 9.
Q
lfyou cannot set the exposure voltage,
go to the CQ27 Exposure RAP.
16,
Press
Stop
button and switch off the
electrometer.
17. Switch off PEAK HOLD on the DMM.
18,
Chock tho chargo vol
lago.
a. Connect the red lead
(
+
) t o TP1
(Figure 6).
b. Press the
Start button.
c. Ensure that the DMM does not exceed
0.475 VDC. If the reading exceeds
0.475VDC1 replace the charge
corotron.
I
d. If voltage cannot be set t o
specification, refer t o the OF 5 Charge
Corotron Out of Specification
RAP.
8196
ADJ 9.2
4-62
3510