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6 January 1990
SYMBOL
NAME
Lamps
L1
Exposure Lamp
L2
Quenching
Lamp
L3
Fusing Lamp
L4
Pre-Transfer
Lamp (PTL)
Power Packs
P1
Charge/Bias
Power Pack
P2
Transfer/Sepa-
ration Power
Pack
Thermistors
TH1
Hot Roller
Thermistor
TH2
Pressure Roller
Thermistor
TH3
Exposure Lamp
Thermistor
Thermofuses
TF1
Fusing
Thermofuse
TF2
Exposure Lamp
Thermofuse
Heaters
H1
Lamp Heater
H2
Anticondensa-
tion Heater
FUNCTION
Provides light to reflect the original's
image onto the drum.
Neutralizes any charge remaining on
the drum surface after cleaning.
Provides heat to the fusing unit.
Reduces the charge on the drum
surface prior to image transfer.
Provides high voltage power for the
charge corona, charge grid, and
development bias.
Provides high voltage power for the
transfer corona and separation
coronas.
Monitors the hot roller's surface
temperature.
Monitors the pressure roller's surface
temperature.
Monitors the fluorescent lamp's
temperature.
Protects against fusing overheat. (Two
thermofuses in parallel.)
Protects against exposure lamp
overheat.
Warms the scanning lamp.
Keeps moisture from forming inside
the copier.
1-16
LOCATION
27
41
46
30
3
47
49
53
----
52
27
----
65
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