Xerox 8830 Service Manual

ADJ 9.2 Electrostatic Series
Purpose
The purpose is to set the drum voltages to obtain
good print quality as specified in Section 3 of this
Service Manual. On IOTs With TAG 23, it is
necessary to establish the correct Average Light
•Output (ALO) of the LED Bar in order to set the
voltages.
Adjustment
1. If the IOT is Without Tag 23, go to step 8.
2. (With Tag 23): Raise and secure the Top
Cover.
NOTE: In the following steps, "Left" and "Right"
describe machine locations as observed when you
are facing the Xerographic Module at the left side of
the Printer.
3. (With Tag 23): Look in on the right side of the
Image Module for the ALO Label, attached to
either the front or the rear of the LED Bar.
4. (With Tag 23): Record the ALO value as
follows.
a. On an early build printer, read the Bar
number on the AOL Label and find the
Average Light Output value from the table at
the end of this procedure.
b. On a newer printer, read the Average Light
Output value directly from the label. Round
the value to the second decimal point. (1.035
becomes 1.04, .983 becomes .98, for
example.)
5. (With Tag 23): Lower the Top Cover.
6. (With Tag 23): Enter Diagnostics.
7. (With Tag 23): Program in the Average Light
Output value.
a. Enter code [09 03].
b. Enter the ALO value.
c. Press the Enter button in order to store the
value in NVM.
d. Press the Exit button two times.
8. Raise and secure the Top Cover.
9. Open the Image Module.
10. (Figure 1): Prepare the Electrometer and connect
it to the DMM.
1
Connect the leads between
the DMM and the
Electrometer
Figure 1. Connecting the
Electrometer to the DMM
8830
1/98
4-101
ADJ 9.2

Xerox 8830 Specifications

General

Brand	Xerox
Model	8830
Category	Printer
Language	English