Gestetner A294 Service Manual page 42

ELECTRICAL COMPONENT DESCRIPTIONS
Symbol Name
M25 SICU Cooling Fan
M26 Drum Cooling Fan
Development Unit
M27
Cooling Fan 1
Development Unit
M28
Cooling Fan 2
Paper Cooling Pipe
M29
Fan
M30 Duplex Cooling Fan
M31 Exhaust Fan
M32 Steam Removal Fan
M33 PSU Cooling Fan 1
M34 PSU Cooling Fan 2
Sensors
Scanner HP
S1
Original Width
S2
Original Length 1
S3
Original Length 2
S4
S5 Drum Potential
S6 Toner Density (TD)
Image Density (ID)
S7
S8 Toner Hopper
S9 Toner Supply Motor
S10 Upper Toner Bottle
S11 Lower Toner Bottle
Upper Bottle Inner
S12
Cap
Lower Bottle Inner
S13
Cap
Toner Collection
S14
Bottle
S15 Toner Overflow
S16 Toner Near End
1st Paper Feed
S17
2nd Paper Feed
S18
3rd Paper Feed
S19
1st Tray Lift
S20
A294/A295
CÓPIA NÃO CONTROLADA
Removes heat from around the SICU.
Removes heat from the drum.
Removes heat from the development unit.
Removes heat from the development unit.
Removes heat from the paper cooling pipe.
Removes heat from around the duplex unit.
Removes heat from around the fusing unit.
Removes water vapor from around the fusing unit.
Removes heat from the PSU.
Removes heat from the PSU.
Informs the CPU when the 1st and 2nd scanners are
at home position.
Detects original width.
This is one of the APS (Auto Paper Select) sensors.
Detects original length.
This is one of the APS (Auto Paper Select) sensors.
Detects original length.
This is one of the APS (Auto Paper Select) sensors.
Detects the drum surface potential.
Detects the amount of toner in the developer.
Detects the density of the ID sensor pattern on the
drum.
Detects toner in the toner hopper.
Monitors the toner supply motor.
Detects when the upper toner bottle is set.
Detects when the lower toner bottle is set.
Detects when the inner cap of the upper toner bottle
is opened.
Detects when the inner cap of the lower toner bottle is
opened.
Detects when the waste toner collection bottle is set.
Detects when the waste toner collection bottle is full.
Detects toner near end in the toner bank unit.
Controls the 1st paper feed clutch on/off timing and
the 1st pick-up solenoid off timing.
Controls the 2nd paper feed clutch on/off timing and
the 2nd pick-up solenoid off timing.
Controls the 3rd paper feed clutch on/off timing and
the 3rd pick-up solenoid off timing.
Detects when the paper in tray 1 is at the correct
height for paper feed.
1-14
CÓPIA NÃO CONTROLADA
Function
SM