Sharp AL-1622 (serv.man20) Service Manual ▷ View online
AL-1611/AL-1622
EXTERNAL VIEWS AND INTERNAL STRUCTURE
4 – 5
6. PWB UNIT
No.
Name
Function, operation
1
Copy lamp Inverter PWB
Copy lamp control
2
Power PWB
AC power input/DC power control
3
High voltage PWB
High voltage control
4
CCD sensor PWB
Image scanning
5
Main PWB (MCU)
Machine control/Image process
6
Tray interface PWB
Paper tray control
7
ERDH operation PWB
Operation panel input and display
8
Copy operation PWB
Operation panel input and display, operation panel section control
1
2
3
4
7
6
5
8
AL-1611/AL-1622
EXTERNAL VIEWS AND INTERNAL STRUCTURE
4 – 6
7. SPF UNIT <AL-1622 ONLY>
[Sensors and detectors]
8. PAPER FEED SECTION <AL-1622 ONLY>
1
2
3
4
5
6
7
9
10
12
13
14
15
No.
Code
Name
Type
Function, operation
1
W0
Document set sensor
Photo transmission
Document presence detection
2
COVER
Open/close sensor
Photo transmission
Paper feed unit open/close detection
3
W1
Document sensor (A4R, LTR, A5)
Photo transmission
Tray document width detection
4
W2
Document width sensor (B4R, B5)
Photo transmission
Tray document width detection
5
W3
Document width sensor (WLTR, A5R, A4, LT)
Photo transmission
Tray document width detection
6
PSOL
Pickup solenoid
—
—
7
PAPER
Paper entry sensor
Photo transmission
Document presence detection
9
CLH
Transport clutch
—
—
10
MOT
SPF motor
Stepping motor
Tray paper feed, transport, paper exit roller drive
12
—
Interface PWB
—
SPF control and communication with the copier body
13
L1
Document length detection SW (Short)
Photo transmission
Tray document length detection
14
L2
Document length detection SW (Long)
Photo transmission
Tray document length detection
15
COVER OPEN
Book sensor
Photo transmission
Detects SPF floating.
No.
Name
Operation
1
Document length sensor (L2)
Detects the document length on the tray.
2
Document length sensor (L1)
Detects the document length on the tray.
3
Document length sensor (W0)
Detects the presence of document.
4
Document width sensor (W1, W2, W3)
Detects the document width.
5
Pickup roller
Picks up the document.
6
Paper feed roller
Feed and transport the document.
7
Paper entry sensor (PAPER)
Detects the document transport.
8
PS roller
Makes synchronization between the document lead edge and the image lead edge.
9
PS follower roller
Makes synchronization between the document lead edge and the image lead edge.
10
Transport roller
Transports the document.
11
Transport follower roller
Transports the document.
12
Paper exit follower roller
Discharges the document.
13
Paper exit roller
Discharges the document.
1
2
3,4
5
6
7
8
9
10 11 12 13
AL-1611/AL-1622
EXTERNAL VIEWS AND INTERNAL STRUCTURE
4 – 7
9. CROSS SECTIONAL VIEW
No.
Name
Function/Operation
1
Copy lamp
Image radiation lamp
2
Copy lamp unit
Operates in synchronization with No. 2/3 mirror unit to radiate documents
sequentially.
sequentially.
3
LSU unit
Converts image signals into laser beams to write on the drum.
4
Lens unit
Reads images with the lens and the CCD.
5
MC holder unit
Supplies negative charges evenly on the drum.
6
Paper exit roller
Used to discharge paper.
7
Upper heat roller
Fuses toner on paper (with the teflon roller).
8
Lower heat roller
Fuses toner on paper (with the silicon rubber roller).
9
Waste toner transport roller
Transports waste toner to the waste toner box.
10
Drum unit
Forms images.
11
Transfer charger unit
Transfer images (on the drum) onto paper.
12
Resist roller
Takes synchronization between the paper lead edge and the image lead edge.
13
Manual paper feed tray
Manual paper feed tray
14
Manual paper feed roller
Picks up paper in manual paper feed.
15
Manual transport roller
Transports paper from the manual paper feed port.
16
2nd tray paper transport roller
Transports paper from the 2nd tray. (Excluding AL-1611)
17
2nd tray paper feed roller (semi-circular roller)
Picks up paper from the 2nd tray. (Excluding AL-1611)
18
1st tray paper feed roller (semi-circular roller)
Picks up paper from the 1st tray.
19
MG roller
Puts toner on the OPC drum.
20
No. 2/3 mirror unit
Reflects the images from the copy lamp unit to the lens unit.
8
9
10
11
12
16
15
17
18
19
20
3
2
1
4
5
6
7
13
14
AL-1611/AL-1622
UNPACKING AND INSTALLATION
5 – 1
[ 5 ] UNPACKING AND INSTALLATION
1. CHECKING PACKED COMPONENTS AND
ACCESSORIES
Open the carton and check to ensure that the following componets and
accessories are included.
accessories are included.
Note:
• If anything is not included or is damaged, contact your authorised
service representative.
• Save the carton and packing materials. These can be re-used for
transporting the machine, should it be necessary.
2. UNPAKING PROCEDURE
Be sure to hold the handles on both sides of the copier by two persons
to unpack the copier and carry it to the installation location.
to unpack the copier and carry it to the installation location.
3. INSTALLING PROCEDURE
1) Remove all pieces of tape. Then open the original cover and
remove the protective material.
2) Use a coin (or suitable object) to remove the screw.
• Store the screw in the paper tray because it will be used if the copier
has to be moved. (Refer to the description in the following.)
3) Ensure that the bypass tray is open. Raise the side coverrelease
handle and pull out the side cover until it stops.
4) Push gently on both sides of the front cover to open the cover.
Copier
TD cartridge
Operation
manual
manual
Power cord
Drum cartridge
(installed in copier)
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