Sharp AL-1566 (serv.man7) Service Manual ▷ View online
AL-1556/1566 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5
6. PWB unit
No.
Name
Function
1
Exposure lamp inverter PWB
Exposure lamp (CCFL) control
2
Main PWB (MCU)
Copier control
3
Operation PWB
Operation input/display
4
Power PWB
AC power input, DC voltage control, High voltage control
5
CCD sensor PWB
For image scanning
6
LSU motor PWB
For polygon motor drive (In the LSU)
7
TCS PWB
For toner sensor control
8
LSU PWB
For laser control (In the LSU)
9
NIC PWB
10 BASE-T Network I/F
10
FAX-operation PWB
FAX operation input (AL-1566)
11
Modem PWB
FAX control (AL-1566)
1
5
9
2
8
6
7
3
4
10
11
AL-1556/1566 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6
7. Cross sectional view
No.
Part name
Function and operation
1
Scanner unit
Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD).
2
Exposure lamp
Exposure lamp (CCFL) Illuminates original
3
LSU (Laser unit)
Converts the original image signal into laser beams and writes onto the drum.
4
Paper exit roller
Roller for paper exit
5
Main charger
Provides negative charges evenly to the drum surface.
6
Heat roller
Fuses toner on the paper. (Teflon roller)
7
Pressure roller
Fuses toner on the paper. (Silicon rubber roller)
8
Drum
Forms images.
9
Transfer unit
Transfers images onto the drum.
10
Pickup roller
Picks up the manual feed paper. (In multi feed only)
11
Manual paper feed tray
Tray for manual feed paper
12
Manual paper feed roller
Transport the paper from the manual paper feed port.
13
PS roller unit
Takes synchronization between the lead edge and the rear edge of the paper.
14
Paper feed roller
Picks up a sheet of paper from the cassette.
15
Pickup roller
Picks up documents.
16
Separation roller
Separates documents to feed properly.
17
PS roller
Feeds documents to the scanning section.
18
Paper exit roller
Discharges documents.
1
4
3
5
18
15
6
7
8
9
10
11
12
14
13
16
17
2
AL-1556/1566 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6
7. Cross sectional view
No.
Part name
Function and operation
1
Scanner unit
Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD).
2
Exposure lamp
Exposure lamp (CCFL) Illuminates original
3
LSU (Laser unit)
Converts the original image signal into laser beams and writes onto the drum.
4
Paper exit roller
Roller for paper exit
5
Main charger
Provides negative charges evenly to the drum surface.
6
Heat roller
Fuses toner on the paper. (Teflon roller)
7
Pressure roller
Fuses toner on the paper. (Silicon rubber roller)
8
Drum
Forms images.
9
Transfer unit
Transfers images onto the drum.
10
Pickup roller
Picks up the manual feed paper. (In multi feed only)
11
Manual paper feed tray
Tray for manual feed paper
12
Manual paper feed roller
Transport the paper from the manual paper feed port.
13
PS roller unit
Takes synchronization between the lead edge and the rear edge of the paper.
14
Paper feed roller
Picks up a sheet of paper from the cassette.
15
Pickup roller
Picks up documents.
16
Separation roller
Separates documents to feed properly.
17
PS roller
Feeds documents to the scanning section.
18
Paper exit roller
Discharges documents.
1
4
3
5
18
15
6
7
8
9
10
11
12
14
13
16
17
2
AL-1556/1566 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 6
7. Cross sectional view
No.
Part name
Function and operation
1
Scanner unit
Illuminates the original with the copy lamp and passes the reflected light to the lens unit(CCD).
2
Exposure lamp
Exposure lamp (CCFL) Illuminates original
3
LSU (Laser unit)
Converts the original image signal into laser beams and writes onto the drum.
4
Paper exit roller
Roller for paper exit
5
Main charger
Provides negative charges evenly to the drum surface.
6
Heat roller
Fuses toner on the paper. (Teflon roller)
7
Pressure roller
Fuses toner on the paper. (Silicon rubber roller)
8
Drum
Forms images.
9
Transfer unit
Transfers images onto the drum.
10
Pickup roller
Picks up the manual feed paper. (In multi feed only)
11
Manual paper feed tray
Tray for manual feed paper
12
Manual paper feed roller
Transport the paper from the manual paper feed port.
13
PS roller unit
Takes synchronization between the lead edge and the rear edge of the paper.
14
Paper feed roller
Picks up a sheet of paper from the cassette.
15
Pickup roller
Picks up documents.
16
Separation roller
Separates documents to feed properly.
17
PS roller
Feeds documents to the scanning section.
18
Paper exit roller
Discharges documents.
1
4
3
5
18
15
6
7
8
9
10
11
12
14
13
16
17
2
Display
