C. Functional parts
(1) Sensor, detector
No.
Parts
Note
Code
Signal name
Name
Type
Function/operation
Active condition
1
MHPS
MHPS
Scanner home position
sensor
Photo
transmission
sensor
Detects the scanner home position.
This signal is used to control image
scanning operation.
HIGH (5V) when the
home position is
detected.
2
SL SENSOR
PDA/PDK
Scanner lamp light
quantity sensor
Photo diode
Detects the scanner lamp light
quantity. This signal is inputted to the
scanner lamp control PWB to control
the scanner lamp drive voltage to
maintain a constant level of light
quantity.
Analog signal (0
∼
0.5V)
3
PAPER SIZE
SW
PAPER SIZE
IN
Paper width detector
Mechanical
switch (Micro
switch)
Detects the paper width. This signal is
used to control the laser beam
radiation area.
LOW (0V) when the
max. width is detected.
4
PE SENSOR
PEMP IN
Paper empty detector
Photo
transmission
sensor
Detects paper on the paper tray.
LOW (0V) when paper
is detected.
5
SYNC
SYNC IN
Laser beam sensor
Bin diode
Detects the laser beam position. This
signal is used to control the left image
print start position.
LOW (0V) when laser
beam is detected.
6
CCD SENSOR
CCD OUT
CCD (image) sensor
CCD
Scans document images (photo
signals) and converts them into
electrical signals.
Digital signal (8Bit)
7
PIN SENSOR
PIN
Paper in detector
Photo
transmission
sensor
Detects whether the fed paper is
transported to the transfer position or
not.
LOW (0V) when paper
is detected.
8
TS
TS IN
Toner empty sensor
Photo
transmission
sensor
Detects remaining toner in the
developing cartridge.
HIGH (5V) when toner
empty is detected.
9
RTH
RTH IN
Fusing temperature
sensor
Thermistor
Detects the fusing roller surface
temperature.
Analog signal (2.0
∼
5.0V)
10
POUT
POUT IN
Paper exit detector
Photo
transmission
sensor
Detects discharge of paper.
LOW (0V) when paper
is detected.
11
DSW
DSW
Front cover open/close
switch
Micro switch
Turns on/off the
+
24V power line
(power source for the motor, the high
voltage PWB, and solenoids) when
opening/closing the front cover for
safety. (Detects open/close of the front
cover at the same time.)
Close
8) TS
9) RTH
10) POUT
11) DSW
1) MHPS
2) SL SENSOR
7) PIN SENSOR
6) CCD SENSOR
3) PAPER SIZE SW
4) PE SENSOR
5) SYNC
FO-3800M
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Содержание FO-3800M
Страница 115: ...S001 P001 S001 P007 CLN S001 P003 S001 P005 S001 P002 S001 P006 S001 P004 CLN FO 3800M 9 4 ...
Страница 142: ...S009 Ua002 S009 Ua003 S009 Ua004 S009 Ua005 S009 Ua006 S009 Ua001 S009 Ua001 002 S009 Ua001 001 FO 3800M 9 31 ...
Страница 174: ...SMP1 SMP2 FO 3800M 10 25 ...
Страница 175: ...SMP3 SMP4 FO 3800M 10 26 ...
Страница 176: ...SMP5 SMP6 a b D FO 3800M 10 27 ...
Страница 177: ...SMP7 SMP8 FO 3800M 10 28 ...
Страница 178: ...SMP9 SMP10 SMP11 Streaks and dots in the pitch of about 78mm Streaks and dots in the pitch of about 45mm FO 3800M 10 29 ...