Sharp FO 4400 - B/W Laser - All-in-One Service Manual Page 124
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FO-4400U
FO-CS1
(11-4A)
(12-6A)
( 2-4A)
( 4-5E)
( 2-4A)
( 2-5A)
( 1-3H)( 2-3A)
( 3-1A)( 4-5D)
( 7-3B)(11-3A)
(12-1A)(12-3A)
(12-5I)
( 2-3A)(12-5A)
(12-6E)
( 1-5A)
( 1-5A)
( 1-3H)( 2-3A)
( 3-1A)( 4-5D)
( 7-3B)(11-3A)
(12-1A)(12-5A)
(12-5I)
( 1-3H)( 2-3A)
( 3-1A)( 4-5D)
( 7-3B)(11-3A)
(12-3A)(12-5A)
(12-5I)
( 4-6A)( 5-4A)( 7-5C)
( 1-6H)( 2-1A)( 3-1A)
(11-6A)
( 2-4A)( 3-3A)
( 4-4A)( 5-4A)
( 4-4A)( 5-4A)
( 2-4A)(12-1A)
( 2-4A)
( 4-5G)
( 2-5A)
( 2-5A)
( 4-5G)
( 4-5G)
( 2-5A)
( 2-5A)
( 5-4H)
( 3-2F)
( 3-3E)
( 3-3E)
( 3-3E)
( 3-2E)
( 3-3E)
( 3-3E)
( 2-4A)(12-3I)
( 2-3A)(12-3A)
(12-2A)
(12-2I)
( 2-4A)( 3-3B)
( 1-3H)( 2-3A)
( 3-1A)( 4-5D)
( 7-3B)(11-3A)
(12-1A)(12-3A)
(12-5A)
(11-6A)(12-4D)
( 3-1A)( 4-6A)
( 5-4A)( 7-4C)
( 1-5H)( 2-1A)
(12-6E)
( 1-5H)( 2-2A)
( 5-4A)( 7-4C)
(11-6A)(12-2D)
( 3-2A)( 4-6A)
A5
A2
A3
MDMA0
A4
A1
MDMA4
MDMA1
MDMA0
MDMA2
MDMA1
MDMA4
MDMA2
MDMA3
MDMA3
MDMD2
MDMD5
MDMD2
MDMD6
D0
D1
MDMD3
D3
MDMD1
MDMD5
D2
MDMD0
MDMD4
MDMD4
D6
D5
MDMD3
D4
MDMD6
MDMD7 D7
MDMD0
MDMD1
MDMD7
D4
MDMD6
MDMD2
D0
D1
D7MDMD7
D5
MDMD4
D3MDMD3
MDMD5
MDMD0
D6
MDMD1
D2
OPD5
OPD7
OPD2
OPD3OPD4
OPD6
OPD0
OPD1
DG
1
DG
3
DG
5
+3.3V
7
+3.3V
9
+3.3V
11
R/W
13
DEN
15
OPD6
17
OPD4
19
OPD2
21
OPD0
23
DG
25
DG
27
DG
29
CLEO
2
ALEO
4
WP1
6
NANDWR
8
OPCS
10
BUSYOP
12
NANDRD
14
OPD7
16
OPD5
18
OPD3
20
OPD1
22
MEMDTC0
24
MEMDTC1
26
DG
28
DG
30
VCC
20
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
GND
10
DIR
1
OE
19
VCC
20
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
GND
10
DIR
1
OE
19
+5V
60
+5V
58
DG
56
DG
54
NC
52
NC
50
NC
48
NC
46
NC
44
NC
42
NC
40
NC
38
DG
36
DG
34
+24VA
32
+5V
30
LCBD0
28
LCBD2
26
LCBD4
24
LCBD6
22
LCBA1
20
LCBA3
18
LCBA5
16
IOWR
14
MDMINT1
12
+5V
59
DG
57
DG
55
NC
53
NC
51
NC
49
NC
47
NC
45
NC
43
NC
41
R/W
39
DG
37
DG
35
+24VA
33
+24VA
31
+5V
29
LCBD1
27
LCBD3
25
LCBD5
23
LCBD7
21
LCBA2
19
LCBA4
17
IORD
15
MDMCS1
13
MDMRST1
11
SPKR2
10
TXMUTE1
9
ERLY1
8
DPMUTE1
7
CML1
6
DPON1
5
CI1
4
+3.3V
3
+3.3V
2
+3.3V
1
VCC
20
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
GND
10
DIR
1
OE
19
C352
R547
R438 0
R558
R472
C340
R440 0
R435 0
R479
N.M.
R557
R616
C336
C70
N.M.
CNOP1
DHB-PB30-S131N
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
20
18
16
14
12
10
8
6
4
2
30
28
26
24
22
C351
R546
R478
IC35
R474
C357
C354
R549
R541
C371
R563
R555
R434 0
R553
R548
R556
R437 0
C342
0.1u
IC28
R544
R477
C335
R538
R502
10K
C355
C337
R500
N.M.
R554
R562
R615
0
C353
C380
R473
R517
10K
C383
N.M.
R539
R560
C338
C341
C356
C304
N.M.
R439 0
R433 0
R436 0
CNLNC1
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
41
43
45
47
49
51
53
55
57
59
21
23
25
27
29
31
33
35
37
39
19
17
15
13
11
10 9
87
65
43
21
R542
R561
C372
100p
C69
N.M.
R476
R540
C373
N.M.
IC34
R559
R567
R551
R475
C381
R501
R545
R552
C350
C370
R543
C334
R550
C339
+3.3V
DG
DG
DG
+3.3V
+5V
+3.3V
DG
DG
DG
+3.3V
DG
+5V
+24VA
DG DG
+5V
+24VA
+3.3V
DGDGDG
+3.3V
DG
+3.3V
DG
+3.3V
DG
DG
+3.3V
/OPDEN
/OPDEN
RD/WR
MDMA[4:0]
MDMD[7:0]
/IOWR /MDMCS1
/MDMRST1MDMINT1
TXMUTE1
DPMUTE1
DPON1
ERLY1
CML1
/NANDWR
ALEO
/NANDOPCS
/WP1
/NANDRD
/BUSYOP
CLEO
OPD[7:0]
MEMDTCT0
MEMDTCT1
MDMA[4:0]A[25:0]
/IORD
/CI1
SPKR2
RD/WR
RD/WR
MDMD[7:0]
RD/WR
/MDMCS1
D[31:0]
D[31:0]OPD[7:0]
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6 6
5 5
4 4
3 3
2 2
1 1
Connector block 4 12/12
6 – 15
- SERVICE MANUAL 1
- FACSIMILE 1
- CONTENTS 2
- [1] Specifications 4
- [2] Life of consumable 4
- [3] Operation panel 5
- [4] Transmittable documents 6
- [5] Installation 7
- Attach a letter or 9
- SPEED DIAL 14
- CHAPTER 2. ADJUSTMENTS 15
- MEMORY CLEAR ? 16
- S W 0 1 = 0 0 0 0 0 0 0 0 17
- Soft switch mode screen 17
- PANEL CHECK MODE 18
- ALL KEY OK !! 18
- : Speed dial number 19
- HHHHHHHHHHHHHHHHHHHH 20
- • Blank paper aging mode 21
- 4. Soft switch description 24
- • Soft switch 24
- [3] Troubleshooting 49
- [4] Error code table 50
- 2. Service call error massage 51
- Super G3 mode 51
- [1] Mechanical description 53
- [2] Printer description 54
- 8. LASER EXPOSURE 57
- 9. DEVELOPMENT 57
- 9-1. Overview 57
- Temperature (°C) 58
- 12. PRINT SEQUENCE 59
- 13. Timing chart 60
- 13-1. Print Starting 60
- 13-2. Print Ending 60
- 2 Rear cabinet 62
- PWB plate, Right cabinet 63
- 4 PWB unit 64
- Inner left cabinet unit 67
- 9 Power supply PWB 68
- Scanner frame unit (1/2) 69
- Scanner frame unit (2/2) 70
- Document guide upper unit 71
- Operation panel unit 71
- 13 Upper cover 72
- Wire treatment 73
- High voltage PWB unit (HV1) 74
- Main motor (M1) 75
- Fusing unit (1/2) 77
- Heater Lamp 78
- Voltage Mark 78
- Paper cassette (FO-CS1) 79
- Cassette case unit 80
- Drive system unit (FO-CS1) 81
- Cassette cabinet (FO-CS1) 82
- Cassette case (1/2) (FO-CS1) 83
- Cassette case (2/2) (FO-CS1) 84
- (FO-45VS) 85
- CHAPTER 4. DIAGRAMS 87
- [1] Circuit description 91
- FO-4400U 100
- (3) Modem block 101
- (2) Backup memory block 101
- 0 I1 Output Current 104
- E) = IOUT 104
- E) = IOUT x 2/3 104
- E) = IOUT x 1/3 104
- 2. Waveforms 105
- CPU block 110
- MAIN CPU 111
- HD6417706F133 111
- Main ASIC block 112
- IC5 SDRAM 113
- MT48LC4M16A2TG-75/ 113
- W986416DH-7 113
- Sub ASIC block 114
- R284 10K 115
- Memory block 4/12 116
- Modem block 5/12 117
- LCD controller block 7/12 119
- Connector block 1 9/12 121
- Connector block 2 10/12 122
- Connector block 3 11/12 123
- Connector block 4 12/12 124
- [2] LIU PWB circuit 1/1 127
- M38079EFFS_12MHZ 130
- Printer PWB circuit 2/2 131
- HEATER ON 134
- HEATER-RELAY OFF 134
- INTERLOCK 134
- Power Supply PWB parts layout 135
- Joint PWB 138
- No. DESCRIPTION PARTS CODE 139
- C LED PWB unit DCEKP425CXHI1 139
- [1] G3 Protocol 144
- [2] Super G3 Protocol 145
- [3] Power On Sequence 146
- CHAPTER 8. OTHERS 147
- Fig. 5 Connected cable 149
- FO-4400 PC 150
- PARTS GUIDE 151
- [5] Document guide upper unit 156
- [4] Operation panel unit 156
- [10] Drive/Transfer unit 162
- PARTS CODE 163
- DESCRIPTION 163
- I n d e x 183
- © 2002 BY SHARP CORPORATION 190
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