179
UF-5500 / 4500
11.2.16. High Voltage Value Check Point
Measurement Procedure
1. Turn Off the unit, and open the unit cover.
2. Remove the developing unit, if it is equipped.
3. Connect the wire to the terminal to be measured (Fig. 2). The wire should be put out of the unit not to interfere in other termi-
nals (Fig. 3). See Fig 4 and 5 for fixing the wire to the terminal No.4.
4. Reinstall the developing unit and close the unit cover.
5. Connect the wire fixed to the terminal to be measured and high voltage probe. Connect the earth of the high voltage probe to
the screw located under the bottom plate of the unit without the paper cassette. (Fig.7).
6. Turn On the unit. It causes the unit to start the initial operation. Be careful, high voltage is output at that moment. (Avoid mea-
suring then.)
7. Remove the wire fixed to the output terminal after measuring.
Each terminal’s output voltage
* FLUKE85 (MULTIMETER) + HIOKI (HV PROVE 9014) or the equivalent should be used as the high voltage measuring instru-
ment. (Fig.6)
* As for measuring TRA, start measuring within 4 seconds after pressing the SET button. The output value will be changed in 4
seconds.
No.
BIAS Name
Rated Output
Rated Output Range
1
CHG (Charge)
200
µ
A
200±15
µ
AOutput voltage about 4.1~4.6KV
2
GRID (Grid)
475V
475± 10V
3
DEV (Developing)
230V
200~300V
4
TRA (Transfer)
785V
785± 100V
Summary of Contents for UF-4500
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Page 248: ...248 UF 5500 4500 13 5 Test Chart 13 5 1 ITU T No 1 Test Chart ...
Page 249: ...249 UF 5500 4500 13 5 2 ITU T No 2 Test Chart ...
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