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MX-M550/M620/M700 PWB LOCATION CHART / 基板（PWB）ロケーション 1 - 1
[1] PWB LOCATION CHART / 基板（PWB）ロケーション
No
Name
Function/Operation
NOTE
1
AC power PWB
Controls the AC power.
2
CCD PWB
Scans document images to converts analog signal to digital signal.
3
CIS control PWB/CIS unit
Scans document images (back surface) and controls the CIS unit.
4
DC main power PWB
Generates the DC power.
5
DC sub power PWB
Generates the DC power in the power save mode.
6
LVDS PWB
Generates the LCD display signal.
7
LCD INV PWB
Generates a high voltage for backlight.
8
MFP FLASH ROM PWB
Stores the MFP control program.
9
MFP controller PWB
Controls the image-related items and controls all over the machine.
10
Mother PWB
Interfaces the MFP control PWB and the PCU PWB.
11
PCU FLASH ROM PWB
Stores the PCU control program.
12
PCU PWB
Controls the engine section.
13
DSPF PWB
Drives the DSPF section loads./ Interfaces the sensor and detector
signals.
signals.
14
DSPF paper width detection PWB
Detects the DSPF paper tray paper width.
15
Image density sensor PWB
Detects the toner patch density in the image density correction.
16
OPC drum mark sensnor PWB
Detects the OPC drum mark.
17
Document size detection light reception PWB
Generates the document size detection signal.
18
Document size detection light emitting PWB
Generates lights to detect the document size.
19
High voltage power PWB (MC/DV/TC)
Generates the main charger voltage, the developing bias voltage, the
transfer voltage and the transfer belt cleaning voltage.
transfer voltage and the transfer belt cleaning voltage.
20
Transfer bias high voltage PWB (TD CL)
Provides the bias voltage for the transfer cleaning roller and the print
mode.
mode.
21
Dehumidifier heater relay PWB
Controls ON/OFF of the dehumidifier heater.
22
Discharge lamp PWB
Generates light for discharging.
23
Scanner Flash PWB
Stores the scanner control program.
24
Scanner control PWB
Controls the scanner section.
25
Scanner relay PWB
Interfaces the scanner control PWB, the CCD PWB, the operation
control PWB and the LVDS/INV PWB.
control PWB and the LVDS/INV PWB.
26
Operation control PWB
Controls the display operation panel.
27
Soft NIC PWB
Controls the network.
28
Manual feed paper width detection PWB
Detects the manual paper feed tray paper width.
29
Driver PWB
Drives the motors.
30
Paper size detection PWB (Paper feed tray 3, 4)
Detects the paper size.
31
Detector PWB (Paper feed tray 1, 2)
Detects the paper empty and upper limit tray.
32
Photoconductor temperature sensor PWB
Temperature detection around the photoconductor
1
21
3
4
10
11
29
29
12
13
20
24
23
15
16
22
14
30
31
32
2
25
26
5
7
9
27
8
28
17
18
19
6
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