Xerox Phaser 3450 Service Manual page 62

6.1.2.6 HVPS Test Item : High Voltage Power Supply
- These Functions are used to check whether the control for HVPS is normal or not.
1. Press the "Menu Key", until finding "Developing Test" is displayed on the panel.
2. Press the "Select Key", when it's found.
3. Press the "Arrow keys" (< / >), until finding a suitable function
(Refer to the table below).
4. Press the "Select Key", when it's found.
5. Press the "Select Key" for execution or the "Cancel key" for stop.
Sub Menu
Dev Bias Test Dev bias(- 470V) and Supply bias(- 650V) are
supplied and after the execution key is chosen
and it stops when the stop key is chosen.
Charge Roll Charge roll voltage (- 1500V) is supplied after
Voltage Test the execution key is chosen and it stops when
the stop key is chosen.
Transfer (+) Test Transfer positive voltage (+1000V) is supplied after
the execution key is chosen and it stops when
the stop key is chosen.
Transfer (-) Test Transfer negative voltage(- 600 ~ -1000 V) is
supplied after the execution key is chosen and it
stops when the stop key is chosen.
PTL Test PTL(Pre-Transfer Lamp) is on after the execution
key is chosen and it stops when the stop key
is chosen.
6.1.2.7 Developing Test Item : Fuser,Laser Scanning Unit
- These Functions are used to check whether functions related to the development are normal or not. (Fuser,
OPC, LSU)
1. Press the "Menu Key", until finding "Developing Test" is displayed on the panel.
2. Press the "Select Key", when it's found.
3. Press the "arrow keys" (< / >), until finding a suitable function
(Refer to the table below).
4. Press the "Select Key", when it's found.
5. Press the "Select Key" for execution or the "Cancel key" for stop.
Sub Menu
Setting Temperature When "Temp" is displayed, Input a temperature
you would like to set with the "arrow keys(
value]
It will be displayed on the bottom line.
Laser Diode Test "Diode On" is displayed, when the laser diode is on.
On the other case "Diode Off" is displayed.
Laser Ready Test "Laser Leady" is displayed, When the Laser
Scanning Unit is ready to print. On the other case
Description
Description
Alignment & Adjustments
Display (LCD)
Dev Bias On (Off)
Charge : -1500V [Value]
Transfer : +1000V [Value
Transfer(-) On(Off)
PTL On(Off)
Display (LCD)
[Temperature] : Test
)".
Ld On(Off)
Laser Leady (Error)
Remarks
ADC value
displayed
ADC value
displayed
Voltage in
the range
Remarks
T :[target value]
C :[current
on/off
Service Manual
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