Ricoh FT8680 Service Manual page 17

ELECTRICAL COMPONENT DESCRIPTIONS
Name
Anticondensation
Error Reset
LCT Cover
Left Door 1
Left Door 2
Main
Right Door 1
Right Door 2
Heaters
1st Tray
2nd Tray
3rd Tray
Anticondensation
Drum
Exposure Lamp
LCT
Lamps
Exposure
Fusing
Pre-Transfer
Quenching
Eraser
Thermistors
Drum
Fusing
Other Components
Total Counter
FL Stabilizer
Thermofuse
Anticondensation
Thermoswitch
Turns on the tray heaters.
Resets error condition.
Turns off components when the LCT top cover is
open.
Turns off the main motor when the left door is open.
Turns off dc 24 volts lines when the left door is open.
Supplies power to the copier.
Turns off dc 24 volts lines when the right door is open.
Turns off the main motor when the right door is open.
Removes humidity from the paper in the 1st tray.
Removes humidity from the paper in the 2nd tray.
Removes humidity from the paper in the 3rd tray.
Prevents moisture from forming on the lens and
mirrors.
Warms the drum when it gets too cool.
Warms the exposure lamp when it gets too cool.
Removes humidity from the paper in the LCT.
Exposes the original with high intensity light.
Provides heat to the hot roller and keeps the roller at
the operating temperature.
Removes excessive positive charge from the drum
surface to the transfer and separation process.
Electrically neutralizes the drum surface prior to
charging.
Discharges the drum outside the image area.
Provides lead/trail edge erase.
Monitors the drum temperature.
Monitors the hot roller temperature.
Keeps a count of the number of copies made.
Stabilizes power to the exposure lamp.
Provides back-up overheat protection in the fusing
unit.
Turns off the anticondensation and drum heaters.
1-14
Function
31 July 1995
Index. No.
23
11
152
25
24
26
21
17
91
92
94
101
95
86
145
85
89
98
97
96
99
88
116
109
90
102