Gp 9.2 Charge Grid Voltage Check - Xerox DocuPrint C55 Service Manual

GP 9.2 CHARGE GRID
VOLTAGE CHECK
PURPOSE
The purpose of this check is to ensure that the
Grid Voltage is within specifications.
Note: During normal operation the Grid voltage
will be one of three voltages –500, –600, –700.
PROCEDURE
1. Set up the multimeter to read –700 VDC.
2. (Figure 1): Connect the meter to the Grid
terminal (blue wire, right).
3. Enter Normal Diagnostics (Menu [3] + Enter
[7], Power ON).
4. Use Menu [3] to scroll to VOL TEST MAIN
CH.
Caution
Check to ensure that the red meter lead is not
contacting the frame.
5. Press Form Feed [1] to switch on the High
Voltage Power Supply.
6. The voltage should be –557 ±7 V.
7. Press Media Server [2] to switch the Power
Supply off.
NOTE: Do not keep the power supply on any
longer than necessary. The constant charge can
fatigue the print drum.
DocuPrint C55/C55mp/[NC60]
Connecting The Meter
Figure 1. Checking the Grid Voltage
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Right Terminal
K4
GENERAL PROCEDURES
GP 9.2