Gp 9.1 Charge Scorotron Current - Xerox DocuPrint C55 Service Manual

GP 9.1 CHARGE SCOROTRON
CURRENT CHECK
PURPOSE
The purpose of this check is to ensure that the
Charge Scorotron current is within specifications.
WARNING
Switch the Main Power off.
PROCEDURE
1. (Figure 1): Disconnect the charge wire
(center, large red) from the right side of the
printer.
2. Set up the multimeter to read –700 µA.
3. (Figure 1): Connect the meter between the
wire removed in step 1 and the charge
terminal on the right frame.
4. Enter Normal Diagnostics (Menu [3] + Enter
[7], Power ON).
5. Use Menu [3] to scroll to VOL TEST MAIN
CH.
Caution
Check to ensure that the red meter lead is not
contacting the frame.
6. Press Form Feed [1] to switch on the High
Voltage Power Supply.
7. The current should be –700 +50 –20 µA.
8. 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.
GENERAL PROCEDURES
GP 9.1
Connecting The Meter
Charge Lead
Figure 1. Checking the Charge Current
2/99
6-50
K3
DocuPrint C55/C55mp/[NC60]