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AL-2051
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Sharp AL-2051 Service Manual Page 132
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Table of contents
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AL-2051 CIRCUIT DIAGRAM 13 - 13
A
B
C
D
8765
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8765
4
3
21
1
2
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4
5
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7
8
D
C
B
A
A
B
C
D
8765
4
3
21
1
2
3
4
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7
8
D
C
B
A
A
B
C
D
8765
4
3
21
1
2
3
4
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D
C
B
A
13/14
KronosII USB/LSU section
1
2
...
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SERVICE MANUAL
1
CAUTION
2
CONTENTS
4
[1] GENERAL
6
[2] SPECIFICATIONS
7
3. Copy performance
8
4. Network board
9
5. Printer
9
6. Scan function
9
[3] CONSUMABLE PARTS
10
2. Environmental
11
1. Appearance
12
2. Internal
12
3. Operation panel
13
4. Motors and solenoids
14
5. Sensors and switches
15
6. PWB unit
16
7. Cross sectional view
17
1. Copier installation
18
2. Cautions on handling
18
4. Unpacking
19
7. Loading paper
19
8. Power to copier
20
9. Software
20
B. Installing the software
21
(2) Connecting a USB cable
22
D. Setting up button manager
26
10. Interface
27
11. Moving
27
C. Attachment method
28
20mm - 25mm
29
[6] COPY PROCESS
32
2. Outline of print process
33
3. Actual print process
33
About DC 5.2kV
34
Semiconductor laser
35
[7] OPERATIONAL DESCRIPTIONS
36
2. Scanner section
37
3. Laser unit
38
4. Fuser section
38
A. General description
39
Gear 20T
42
Process detection switch
42
Gear 38T
42
7. RSPF section
43
D. RSPF open/close detection
44
(book document detection)
44
A. Initial state
44
B. Front copy
44
C. Back copy
44
9. Shifter
45
[8] DISASSEMBLY AND ASSEMBLY
46
2. Operation panel section
47
3. Optical section
48
4. Fusing section
50
PPD2 sensor
51
Heater lamp
51
Heat roller
52
C. Assembly procedure
53
B. Disassembly procedure
53
PS semi-circuler
57
7. Rear frame section
61
8. Power section
62
9. Duplex motor section
62
10. Reverse roller section
63
11. RSPF section
63
C. Document tray unit
64
F. Drive unit
64
G. Shutter solenoid
65
I. Paper empty sensor
66
J. PS roller
67
K. Upper transport roller
67
L. Paper sensor
68
M. Lower transport roller
68
N. Paper exit sensor
68
[9] ADJUSTMENTS
69
B. Image position adjustment
70
B4 or 8 1/2″ × 14″ paper
71
A4 size rear edge
71
Paper rear edge
71
Scale image
71
2. Copy density adjustment
72
3. High voltage adjustment
73
4. Duplex adjustment
74
Document guide
75
The trailing edge has a scale
75
Table glass
75
2. Key rule
77
3. List of simulations
77
(Example)
101
(Main cassette paper feed)
102
Chart back surface
106
5. Trouble codes
108
[11] USER PROGRAM
112
[12] ELECTRICAL SECTION
115
2. Actual wiring diagram
116
RSPF UNIT
117
3. Signal name list
118
[13] CIRCUIT DIAGRAM
120
2/14Memory section
121
3/14Buffer section
122
4/14Driver section 1
123
5/14Driver section 2
124
6/14Connector section 1
125
7/14Connector section 2
126
8/14Connector section 3
127
9/14Pull Up/Down section
128
11/14KronosII SDRAM section
130
13/14KronosII USB/LSU section
132
14/14Power Source section
133
1/3LED/LCD section
134
2/3KEY / Buzzer section
135
3/3Connector section
136
LEAD-FREE SOLDER
137
CAUTION FOR BATTERY DISPOSAL
138
Trademark acknowledgements
139
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