Sharp AL-2020 (serv.man2) Service Manual ▷ View online
AL-2040 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 3
ONLINE indicator
The ONLINE key is pressed and on line and off line are
changed.
changed.
Power save indicator
SCAN indicator
*4: Using the SCAN key to begin scanning
Note:
• Scanning is not possible during a copy job.
• If the SCAN (
) key is pressed during a print job, the scan
job will be stored.
• When scanning an original that has been placed in the SPF,
only one original can be placed unless you are using Sharp-
desk.
desk.
1) Press the SCAN (
) key.
The unit enters scan mode.
2) Place the original you wish to scan on the document glass/
SPF.
3) Press the right copy quantity key to display the number of
the application that you wish to use for scanning.
The application numbers are initially as follows.
4) Press the start (
) key.
Scanning will start and the scanned data will be transferred
to the application.
to the application.
On:
Indicates the unit is ready for printing or scanning is
being performed. (On line)
being performed. (On line)
Blinking: Printing or data is being received from a computer.
Off:
Copying is being performed. (Off line)
On:
Indicates the unit is in a power save mode.
Blinking: Indicates that the unit is initializing (when the side
cover is opened and closed or the power turned off
and on).
and on).
On:
The SCAN (
) key has been pressed and the unit
is in scanner mode.
Blinking: A scan job is being executed from the computer, or
scan data is stored in the unit’s memory.
Off:
The unit is in the copy mode.
Application
number
Application launched
SC1
Sharpdesk (Full color) (if installed)
SC2
Sharpdesk (Monochrome) (if installed)
SC3
E-mail (your standard e-mail program in
the Windows OS you are using)
the Windows OS you are using)
SC4
Fax (if a fax program is installed)
SC5
OCR (if an OCR program is installed)
SC6
Microsoft Word (if installed)
AL-2040 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 4
4. Motors and solenoids
3
9
2
8
4
1
5
7
6
No.
Part name
Control signal
Function / Operation
1
Main motor
MM
Drives the copier.
2
Scanner motor
MRMT
Drives the optical mirror base (scanner unit).
3
Toner motor
TM
Supplies toner.
4
Cooling fan motor
VFM
Cools the optical, fusing section.
5
Resist roller solenoid
RRS
Resist roller rotation control solenoid
6
Paper feed solenoid
CPFS1
Cassette Paper feed solenoid 1
7
Multi paper feed solenoid
MPFS
Multi manual pages feed solenoid
8
SPF motor
SPFM
Drives the single pass feeder (AL-2040 only)
9
Duplex motor
DMT
Devices the duplex paper transport section
AL-2040 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5
5. Sensors and switches
1
2
8
9
3
4
5
6
7
No.
Name
Signal
Type
Function
Output
1
Scanner unit home
position sensor
position sensor
MHPS
Transmission sensor
Scanner unit home position
detection
detection
"H" at home position
2
POD sensor
POD
Transmission sensor
Paper exit detection
"H" at paper pass
3
PPD2 sensor
PPD2
Transmission sensor
Paper transport detection 2
"L" at paper pass
4
Cassette detection switch
CED1
Micro-switch
Cassette installation detection
"H" at cassette insertion
5
PPD1 sensor
PPD1
Transmission sensor
Paper transport detection 1
"L" at paper pass
6
Door switch
DSW
Micro-switch
Door open/close detection
(safety switch for 24V)
(safety switch for 24V)
1 or 0V of 24V at door open
7
Drum reset switch
DRST
Micro-switch
New drum detection switch
Instantaneously "H" at insertion
of new drum
of new drum
8
SPF sensor
SPID/
SD SW
SD SW
Transmission sensor
Paper entry detection
Cover open/close detection
Cover open/close detection
"L" at paper pass (AL-2040 only)
9
SPPD sensor
SPPD
Transmission sensor
Paper transport detection
"L" at paper pass (AL-2040 only)
AL-2040 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6
6. PWB unit
2
4
5
8
3
6
7
9
10
1
No.
Name
Function
1
Exposure lamp invertor PWB
Exposure lamp (CCFL) control
2
Main PWB (MCU)
Copier control
3
Operation PWB
Operation input/display
4
High voltage PWB
High voltage control
5
CCD sensor PWB
For image scanning
6
LSU motor PWB
For polygon motor drive
7
TCS PWB
For toner sensor control
8
LSU PWB
For laser control
9
NIC PWB
Network print control (AL-2040 only)
10
Power PWB
AC power input, DC voltage control
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