Ricoh A217 Service Manual page 12

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14 August 1997
Symbol
Index
No.
H3
22
Thermistors
TH1
45
Thermofuses
TF1
44
Thermoswitch
TS1
4
Counters
CO1
25
CO2
N/A
Others
CB1
17
HDD
82
Description
Tray
(option)
Fusing
Fusing
Exposure Lamp
Total
Key
(option)
Circuit Breaker
(220 ~ 240V
machines only)
Hard Disk Drive
ELECTRICAL COMPONENT DESCRIPTIONS
Turns on when the main switch is off to keep
paper dry in the paper tray.
Monitors the temperature at the central area
of the hot roller.
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.
Used for control of authorized use. The
copier will not operate until it is installed.
Provides back-up high current protection for
electrical components.
Scanned image data is compressed and held
here temporarily during copying; also holds
user stamp data.
9
Note

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