Sharp FO-3800M, Руководство по обслуживанию

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i. Cross sectional view
No.
Parts
Model Note
Code Signal name Name Type Function/operation Active condition
1 Fusing temperature
sensor Thermistor Detects the heat roller surface
temperature. Analog signal (2.0
∼
5.0V)
2 No. 3 mirror (LSU) Leads the laser beam to the OPC
drum.
3 No. 1 mirror (LSU)
4 No. 2 cylindrical lens Corrects the laser beam deflection
caused by variations in the surface
angle of the scanning mirror. Also
prevents agaist dirt in the optical
section.
5 OPC drum OPC Forms latent electrostatic images.
6 Laser scanner Scans laser beams to perform
imaging.
7 frror (No. 2 mirror)
(LSU) Corrects the laser beam form and
pitch.
8 Laser diode Generates the laser beam.
(Controls ON/OFF for imaging.)
9 PE SENSOR PEMP IN Paper empty
detector Photo
transmission
sensor Detects paper on the paper tray. LOW (0V) when
paper is detected.
10 Paper pressure
spring Presses paper onto the paper feed
roller at a proper pressure.
11 Paper pressure plate Presses paper onto the paper feed
roller at a proper pressure.
12 Paper feed roller Feeds paper.
13 Paper separator Separates paper in paper feed.
14 PIN
SENSOR PIN Paper in detector Photo
transmission
sensor Detects whether the fed paper is
transported to the transfer position
or not. By the timing of this
detector signal, the relative
positions of the paper and the print
image are controlled. LOW (0V) when
paper is detected.
29)
35)
28) MHPS 30) SL SENSOR 31)
34)
32)
33) CCD SENSOR
1) 2) 3) 4) 5) 6) 7)
8)
9) PE SENSOR
10)
11)
12)
13)
14) PIN SENSOR
15)
16)
17)
22)
21)
23)
24) POUT
25)
26)
18)
36)
FO-3800M
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