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AL2020
Sharp AL2020 Service Manual
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AL-2020/2035/2040/2050/2060 CIRCUI
T DIAGRAM 14 - 27
VCL
VCL
AFE_DB#0
AFE_DB#3
AFE_DB#4
VCL
AFE_DB#6
AFE_DB#1
AFE_DB#2
AFE_DB#5
AFE_DB#7
AFE_DB6
AFE_DB3
AFE_DB4
AFE_DB7
AFE_DB0
AFE_DB5
AFE_DB#1
AFE_DB2
AFE_DB#7
AFE_DB#2
AFE_DB#6
AFE_DB1
AFE_DB#5
AFE_DB#0
AFE_DB#4
AFE_DB#3
AFE_DB2
AFE_DB3
AFE_DB7
AFE_DB5
AFE_DB0
AFE_DB4
AFE_DB1
AFE_DB6
PGND
24V
12V
EN5V
VCC3
PGND
PGND
CL
(2)
AFE_
S
CK#
(5)
ADCLK#
(5)
AFE_
S
EN#
(5)
AFE_
S
DI#
(5)
V
S
AMP#
(5)
B
S
AMP#
(5)
m
t
_
at
_
ho
m
e
(5)
CCD_CP#
(5)
CCD_PHI1#
(5)
CCD_R
S
#
(5)
CCD_PHI2#
(5)
CCD_TG#
(5)
AFE_DB[7
..
0]
(2)
3
2
1
Copy
Lamp
Inverter
To
Scanner
unit
TP886
R318
910J
C340
0
.
1U/50V<1608>
C132
47P
C313
47P
R321
5
.
6KJ1/4W<3216>
+
C339
47U/35V
C319
47P
D49
11EQ
S
06
C314
47P
L12
220UH
TWKA-221K
R323
15KJ
R324
56KJ
C315
47P
CN4
FF4-32-
S
15D5
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
C341
33P
Q6
KTC3198
BR86
33JX4
1
2
3
4
8
7
6
5
R319
15KJ
C316
47P
R322
12KJ
L17
1J
<1608>
CP18
0603
S
FF150FM/32-2
C342
1000P
R320
1KJ
BR87
33JX4
1
2
3
4
8
7
6
5
D48
KD
S
226
2
1
3
CP14
0603
S
FF150FM/32-2
C318
47P
C109
47P
CP15
0603
S
FF150FM/32-2
+
C338
47U/35V
Q5
2
S
J537
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
MCU
PWB
(Scanner
I/F
section)
(AL-2050/2060)
14/16
203
205
Table of Contents
Table of Contents
4
Default Chapter
1
Service Manual
1
Major Functions
6
Model
6
Specifications
7
Basic Specifications
7
Operation Specifications
7
Copy Performance
8
GDI Printer (AL-2020/2035/2040)
9
SPLC Printer (AL-2050/2060)
9
Scan Function
9
Spf (Al-2035/2040)
10
Rspf (Al-2050/2060)
10
FAX Specifications (AL-2060 Only)
10
Consumable Parts
16
Environmental
17
Production Control Number (Lot No.) Identification
17
External Views and Internal Structures
18
Appearance
18
Internal
18
Operation Panel
19
Al-2020/2035/2040
19
Al-2050/2060
20
Motors and Solenoids
22
Al-2020/2035/2040
22
Al-2050/2060
23
Sensors and Switches
24
Al-2020/2035/2040
24
Al-2050/2060
25
PWB Unit
26
Al-2020/2035/2040
26
Al-2050/2060
27
Cross Sectional View
28
Al-2020/2035/2040
28
Al-2050/2060
29
Unpacking and Installation
30
Copier Installation
30
Cautions on Handling
30
Checking Packed Components and Accessories
30
Unpacking
31
Removing Protective Packing Materials
31
Installing the TD Cartridge
31
Loading Paper
32
Power to Copier
32
Software
32
Before Installation
33
Installing the Software
33
Setting up Button Manager
37
Interface
38
Usb
38
Rj45
38
Moving
38
Scanner Moisture-Proof Kit
38
Components
38
Precautions at Installation
38
Attachment Method
38
Copy Process
42
Functional Diagram
42
Outline of Print Process
43
Actual Print Process
43
Operational Descriptions
46
Outline of Operation
46
Scanner Section
47
Scanner Unit
47
Optical System
47
Drive System
47
Laser Unit
48
Basic Structure
48
Laser Beam Path
48
Composition
48
Fuser Section
48
General Description
49
Paper Feed Section and Paper Transport Section
49
Paper Transport Path and General Operations
49
Process Unit New Drum Detection Mechanism
52
SPF/RSPF Section
52
Outline
52
Document Transport Path and Basic Composition
53
Operational Descriptions
53
SPF/RSPF Open/Close Detection (Book Document Detection)
54
D-D (Duplex to Duplex) Mode Paper/ Document Transport (Duplex Model)
54
Initial State
54
Front Copy
54
Back Copy
55
Shifter (AL-2050/2060)
55
Disassembly and Assembly
56
High Voltage Section
56
List
56
Disassembly Procedure
56
Assembly Procedure
56
Charger Wire Cleaning
56
Charger Wire Replacement
57
Operation Panel Section
57
List
57
Disassembly Procedure
57
Assembly Procedure
58
Optical Section
58
List
58
Disassembly Procedure
58
Assembly Procedure
60
Fusing Section
60
List
60
Disassembly Procedure
60
Assembly Procedure
63
Tray Paper Feed/Transport Section
63
List
63
Disassembly Procedure
63
Assembly Procedure
69
Manual Paper Feed Section
69
List
69
Disassembly Procedure
69
Assembly Procedure
71
Pressure Plate Holder Attachment
71
Rear Frame Section
71
List
71
Disassembly Procedure
71
Assembly Procedure
73
Power Section
73
List
73
Disassembly Procedure
73
Duplex Motor Section
73
Reverse Roller Section
74
List
74
Disassembly Procedure
74
Assembly Procedure
74
RSPF Section (AL-2050/2060)
74
Front Cabinet, Rear Cabinet
74
Upper Door Unit
74
Document Tray Unit
75
Upper Door Open/Close Sensor
75
Reverse Clutch, Paper Exit Roller
75
Drive Unit
75
Shutter Solenoid
76
Pickup Roller, Take-Up Roller
77
Paper Empty Sensor
77
PS Roller
78
Upper Transport Roller
78
Paper Sensor
79
Lower Transport Roller
79
Paper Exit Sensor
79
SPF Section (AL-2035/2040)
80
SPF Motor
80
Pick-Up Roller, Paper Feed Roller
81
Paper Exit Roller
81
Set Sensor, Scan Front Sensor
82
Transport Roller
82
Adjustments
83
Optical Section
83
Copy Magnification Ratio Adjustment
83
Copy Image Dimensions Original Dimension
83
100 (%)
83
Original (Scale)
83
Shizuoka
83
B. Image Position Adjustment
84
Default Chapter
84
Image Position Adjustment
84
MM JAPAN 1/2Mm
84
1 Print Start Position
85
(Main Cassette Paper Feed)
85
2 Print Start Position (Manual Paper Feed)
85
3 Image Lead Edge Void Amount
85
4 Image Scan Start Position
85
5 Image Rear Edge Void Amount
85
(Manual Paper Feed)
85
7 Print Center Offset
85
Copy Density Adjustment
86
Copy Density Adjustment Timing
86
Note for Copy Density Adjustment
86
Necessary Tool for Copy Density Adjustment
86
Features of Copy Density Adjustment
86
Copy Density Adjustment Procedure
87
High Voltage Adjustment
87
Main Charger (Grid Bias)
87
DV Bias Check
88
Duplex Adjustment
88
Adjusting the Paper Reverse Position in Memory for Duplex Copying
88
Adjusting Trailing Edge Void in Duplex Copy Mode
88
SPF/RSPF Scan Position Automatic Adjustment
89
SPF/RSPF Mode Sub Scanning Direction Magnification Ratio Adjustment
90
Automatic Black Level Correction
90
Simulation, Trouble Codes
91
Entering the Simulation Mode
91
Key Rule
91
List of Simulations
91
Descriptions of Various Simulations
92
Main Cassette Paper Feed
106
8 Print Center Offset (Manual Paper Feed)
117
Print Center Offset
117
(Main Cassette Paper Feed)
119
Trouble Codes
130
Trouble Codes List
130
Details of Trouble Codes
130
FAX Communication Error Codes (AL-2060 Only)
133
Error Code Identification
133
User Program
135
Functions that Can be Set with User Programs
135
Toner Save Mode (AL-2020/2035/2040)
135
User Programs (AL-2020/2035/2040)
135
User Programs (AL-2050/2060)
136
Copy Mode
136
Print Mode
138
Fax Soft Switch
139
FAX Soft Switch Setting Change Quick Reference Table
139
Soft Switch List
140
Soft Switch Descriptions
160
Electrical Section
170
Block Diagram
170
Overall Block Diagram
170
Actual Wiring Diagram
172
Mcu Pwb (Al-2020/2035/2040)
172
Mcu Pwb (Al-2050/2060)
173
SPF Unit (AL-2035/2040)
174
RSPF Unit (AL-2050/2060)
174
Nic Pwb (Al-2040/2050/2060)
174
Signal Name List
175
Circuit Diagram
178
Mcu Pwb (Al-2020/2035/2040)
178
Ope Pwb (Al-2020/2035/2040)
190
Mcu Pwb (Al-2050/2060)
191
Operation Pwb (Al-2050/2060)
207
Fax Main Pwb (Al-2060)
210
Fax Operation Pwb (Al-2060)
216
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Online Manual
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Sharp AL2020 Specifications
General
Brand
Sharp
Model
AL2020
Category
All in One Printer
Language
English
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