Gestetner A193 Service Manual page 53

ELECTRICAL COMPONENT DESCRIPTIONS
Index
Symbol
No.
MC4 40
MC5 41
MC6 44
MC7 39
MC8 38
Solenoids
SOL1 48
Lamps
L1 60
L2 2
L3 8
Heaters
H1 18
H2 34
Thermistors
TH1 24
TH2 22
Thermofuses
TF1 7
Counters
CO1 25
CO2 ---
Others
LSD1 30
NF 56
(A193)
Description
By-pass Feed
Upper Paper Feed
Lower Paper Feed
Registration
Development
Junction Gate
Quenching
Scanner
Fusing
Tray (option)
Anti-condensation
(option)
Charge Roller
Fusing
Fusing
Total
Key
(option)
Laser
Synchronization
Detector
Noise Filter
(230V machine only)
1-10
Note
Starts paper feed from the by-pass feed
table.
Starts paper feed from the upper paper tray.
Starts paper feed from the lower paper tray.
Drives the registration rollers.
Drives the development roller.
Moves the junction gate to direct copies to
the face up or face down copy tray.
Neutralizes any charge remaining on the
drum surface after cleaning.
Applies light to the original for exposure.
Provides heat to the hot roller.
Turns on when the main switch is off to keep
paper in the paper tray dry. Tray heaters are
also available for the optional paper feed unit.
Turns on when the main switch is off to
prevent moisture from accumulating.
Monitors the temperature of the drum charge
roller.
Monitors the temperature of the hot roller.
Provides back-up overheat protection in the
fusing unit.
Keeps track of the total number of copies
made.
Used for control of authorized use. The
copier will not operate until it is installed.
Detects the laser beam at the start of the
main scan.
Removes electrical noise from the AC input
line.
SM