Sharp AR-M550 (serv.man4) Service Manual ▷ View online
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 14
E. Lamp
Code
Signal name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
CL1
CL1
Scanner lamp
Xenon lamp
Radiates lights onto a document for the
CCD to scan the document image.
CCD to scan the document image.
CCFT
CCFT
LCD backlight
CCFT cool CRT
LCD backlight
DL
DL
Discharge lamp
Lamp
Discharges electric charges on the OPC
drum.
drum.
LEDCL
LEDCL
CIS lamp (LED)
LED
Radiates lights onto a document for the
CCD to scan the document image.
CCD to scan the document image.
LEDCL
DL
CCFT
CL1
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 15
F. Fan motor
Code
Signal
name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
CFM-DC1
CFM-DC1
Power cooling fan motor
DC brushless
motor
motor
Cools the DC power unit.
CFM-DC2
CFM-DC2
Power cooling fan motor
DC brushless
motor
motor
Cools the DC power unit.
CFM-DV
CFM-DV
Developing section cooling fan
motor
motor
DC brushless
motor
motor
Cools the developing
section.
section.
PWM control
CFM-HDD
CFM-HDD
HDD cooling fan motor
DC brushless
motor
motor
Cools the HDD.
PWM control
CFM-ICU
CFM-ICU
Controller cooling fan motor
DC brushless
motor
motor
Cools the controller.
PWM control
CFM-R1
CFM-R1
Process cooling fan motor 1
(LSU/process section)
(LSU/process section)
DC brushless
motor
motor
Cools the LSU/ process
section.
section.
PWM control
CFM-R2
CFM-R2
Process cooling fan motor 2
(LSU/process section)
(LSU/process section)
DC brushless
motor
motor
Cools the LSU/ process
section.
section.
PWM control
CFM-R3
CFM-R3
Process cooling fan motor 3
(LSU/process section)
(LSU/process section)
DC brushless
motor
motor
Cools the LSU/ process
section.
section.
PWM control
CFM-U1
CFM-U1
Fusing section cooling fan
motor 1 (Paper exit/duplex
(ADU) section) (Top surface)
motor 1 (Paper exit/duplex
(ADU) section) (Top surface)
DC brushless
motor
motor
Exhaust heat from the
fusing section.
fusing section.
PWM control
CFM-U2
CFM-U2
Fusing section cooling fan
motor 2 (Paper exit/duplex
(ADU) section) (Paper exit rear
side)
motor 2 (Paper exit/duplex
(ADU) section) (Paper exit rear
side)
DC brushless
motor
motor
Exhaust heat from the
fusing section.
fusing section.
PWM control
CFM-U3
CFM-U3
Fusing section cooling fan
motor 3 (Paper exit/duplex
(ADU) section)(Top surface)
motor 3 (Paper exit/duplex
(ADU) section)(Top surface)
DC brushless
motor
motor
Exhaust heat from the
fusing section.
fusing section.
PWM control
CFM-U4
CFM-U4
Fusing section cooling fan
motor 4 (Paper exit/duplex
(ADU) section)(Paper cooling
fan motor)
motor 4 (Paper exit/duplex
(ADU) section)(Paper cooling
fan motor)
DC brushless
motor
motor
Cools paper which is
discharged to the inner
tray.
discharged to the inner
tray.
PWM control
SPFFAN
SPFFAN
SPF fan motor
DC brushless
motor
motor
Exhausts heat generated
by the motor clutch in the
SPF.
by the motor clutch in the
SPF.
PWM control
1
CFM-HDD
CFM-DV
SPFFAN
VFM-BKU
CFM-U2
CFM-U4
VFM-BKR
CFM-ICU
CFM-DC1
CFM-DC2
VFM-BKL
CFM-R1
CFM-R2
CFM-R3
CFM-U3
VFM-EX1
VFM-EX2
VFM-EX3
CFM-U1
1
1
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 16
G. PWB (Main unit section)
VFM-BKL
VFM-BKL
Process exhaust fan motor 4
DC brushless
motor
motor
Exhaust ozone and heat
from the process section.
from the process section.
PWM control
VFM-BKR
VFM-BKR
Fusing exhaust fan motor
DC brushless
motor
motor
Exhaust heat from the
fusing section.
fusing section.
PWM control
VFM-BKU
VFM-BKU
Paper cooling fan motor
DC brushless
motor
motor
Exhaust heat from paper in
the inner tray.
the inner tray.
PWM control
VFM-EX1
VFM-EX1
Process exhaust fan motor 1
(Front side)
(Front side)
DC brushless
motor
motor
Exhaust ozone and heat
from the process section.
from the process section.
PWM control
VFM-EX2
VFM-EX2
Process exhaust fan motor 2
(Center)
(Center)
DC brushless
motor
motor
Exhaust ozone and heat
from the process section.
from the process section.
PWM control
VFM-EX3
VFM-EX3
Process exhaust fan motor 3
(Rear side)
(Rear side)
DC brushless
motor
motor
Exhaust ozone and heat
from the process section.
from the process section.
PWM control
No
Name
Function/Operation
MODEL
NOTE
1
AC power PWB
Controls the AC power.
2
CCD PWB
Scans document images.
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/INV PWB
Generates the LCD display signal, and generates a high voltage for
backlight.
backlight.
7
MFP FLASH ROM PWB
Stores the MFP control program.
8
MFP controller PWB
Controls the image-related items and controls all over the machine.
9
Mother PWB
Interfaces the MFP control PWB and the PCU PWB.
10
PCU FLASH ROM PWB
Stores the PCU control program.
11
PCU PWB
Controls the engine section.
12
SPF PWB
Drives the SPF section loads./ Interfaces the sensor and detector
signals.
signals.
13
SPF paper width detection PWB
Detects the SPF paper tray paper width.
14
Image density sensor PWB
Detects the toner patch density in the image density correction.
15
OPC drum mark sensnor PWB
Detects the OPC drum mark.
16
Document size detection light
reception PWB
reception PWB
Generates the document size detection signal.
Code
Signal
name
Name
Type
Function/Operation
Active
condition
MODEL
NOTE
1
1
1
1
1
1
1
22
2
26
27
3
4
5
6
8
28
7
9
10
30
30
11
12
20
25
24
14
15
23
13
16
17
31
32
19
33
1
1
: Feb. 9 2004
1
AR-M550/M620/M700 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 17
H. FAX section
17
Document size detection light
emitting PWB
emitting PWB
Generates lights to detect the document size.
19
High voltage 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)
(TD CL)
Provides the bias voltage for the transfer cleaning roller and the print
mode.
mode.
22
Dehumidifier heater relay PWB
Controls ON/OFF of the dehumidifier heater.
23
Discharge lamp PWB
Generates light for discharging.
24
Scanner Flash PWB
Stores the scanner control program.
25
Scanner control PWB
Controls the scanner section.
26
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.
27
Operationcontrol PWB
Controls the display operation panel.
28
Soft NIC PWB
Controls the network.
29
Manual feed paper width
detection PWB
detection PWB
Detects the manual paper feed tray paper width.
30
Driver PWB
Drives the motors.
31
Paper size detection PWB
(Paper feed tray 3, 4)
(Paper feed tray 3, 4)
Detects the paper size.
32
Detector PWB
(Paper feed tray 1, 2)
(Paper feed tray 1, 2)
Detects the paper empty and upper limit tray.
33
Photoconductor temperature
sensor PWB
sensor PWB
Temperature detection around the photoconductor
No
Name
Function/Operation
MODEL
NOTE
1
MDMC PWB
Controls the Modem and the TEL/LIU PWB.
Modem control
FAX unit
2
FAX IF PWB
• Interfaces the MDMC PWB and the main unit controller PWB.
• Installs the FAX image memory. (Expansion memory AR-MM9 can be
• Installs the FAX image memory. (Expansion memory AR-MM9 can be
installed.)
3
TEL/LIU PWB
• Controls the line. (Call-out, polarity reversion detection, CI detection,
line monitor, etc.)
• Connection of an externally connected telephone line.
4
FAX AC power 100
Generates the FAX DC power of 100V.
5
FAX AC power 200
Generates the FAX DC power of 200V.
No
Name
Function/Operation
MODEL
NOTE
1
1
3
4,5
1
1
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