Repair Analysis Procedures
Phaser® 3500 Laser Printer Service Manual
2-8
Tray 2 Out
Sensor
Remove Tray 2 from the
printer.
Tray 2
IN/OUT
Tray 3 Out
Sensor
Remove Tray 3 from the
printer.
Tray 3
IN/OUT
Fuser Door
Sensor
Open the rear cover and
actuate the fuser door
sensor.
Fuser Door Sensor
Closed/Opened
HVPS Dev Bias
DC
Developer Bias DC is
applied when the OK button
is pressed, and then goes
off when the Cancel button
is pressed.
Dev Bias DC
ON/OFF
Dev Bias
AC
Developer Bias AC is
applied when OK is pressed
and goes off when Cancel is
pressed.
Dev Bias AC
ON/OFF
Charge
Roll
Voltage
Charge Roller Voltage
(+1200V) is supplied when
OK is pressed and goes off
when Cancel is pressed.
Charge Roll
ON/OFF
Transfer
Roll (+)
Positive Transfer Voltage
(+1200V) is supplied when
OK is pressed and goes off
when Cancel is pressed.
[%d] is the value of the ADC.
Transfer Roll (+)
[%d]
ON/OFF
Transfer
Roll (-)
Negative Transfer Voltage
(-800V) is supplied when
OK is pressed and goes off
when Cancel is pressed.
Measure voltage with a
DMM, if required.
Transfer Roll (-)
ON/OFF
Pre-
transfer
Lamp
(PTL)
PTL turns on when OK is
pressed and goes off when
Cancel is pressed. Visual
confirmation is possible with
the cover open and the Print
Cartridge removed.
Pre-transfer Lamp
ON/OFF
Laser Scan
Unit
Laser
Diode_0
Laser Diode0 On is
displayed when the laser
diode is on. In the other
case Laser Diode0 Off is
displayed.
Laser Diode0
ON/OFF
Laser
Diode_1
Laser Diode1 On is
displayed when the laser
diode is on. In the other
case Laser Diode0 Off is
displayed.
Laser Diode1
ON/OFF
Main Menu Sub Menu Description/Function Control Panel Display
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