Ricoh FT5535 Service Manual page 644

ELECTRICAL COMPONENT DESCRIPTIONS
Symbol Name
Secondary Fusing
L3
Pre-transfer
L4
Quenching
L5
Erase
L6
Heaters
Drum
H1
Optics Anti-condensation
H2 (option)
Lower Tray (option)
H3
Thermistors
Main Fusing
TH1
Secondary Fusing
TH2
Optics
TH3
Drum Charge
TH4
Thermofuses
Main Fusing
TF1
Secondary Fusing
TF2
Exposure Lamp
TF3
Counters
Total
CO1
A212/A214
CÓPIA NÃO CONTROLADA
Provides heat to both ends of the hot roller.
Modified - see the "Fusing" section for
details.
Reduces the charge remaining on the
drum surface before transfer.
Neutralizes any charge remaining on the
drum surface after cleaning.
After exposure, this eliminates the charge
on areas of the drum that will not be used
for the image.
Turns on when the main switch is off to
keep the temperature around the drum
charge roller at a certain level. Also
prevents moisture from forming around the
drum.
Turns on when the main switch is off to
prevent moisture from forming on the
optics.
Turns on when the main switch is off to
keep paper dry in the lower paper tray.
Monitors the temperature at the central
area of the hot roller.
Monitors the temperature at the ends of the
hot roller.
Monitors the temperature of the optics
cavity.
Monitors the temperature of the drum
charge roller.
Provides back-up overheat protection in
the fusing unit.
Provides back-up overheat protection in
the fusing unit.
Opens the exposure lamp circuit if the 1st
scanner overheats.
Keeps track of the total number of copies
made.
5-14
CÓPIA NÃO CONTROLADA
Function Index No.
60
4
5
2
33
40
32
63
64
41
43
62
61
17
35
SM