Sharp AL-1451 Spécifications Page 106
- Page / 126
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
AL-1551 ELECTRICAL SECTION 12-17
11.CL invertor PWB (circuit)
A. Circuit description
The Two transistors connected in series to the transformer are switched on/off by the control signal (CL-) from the MCU. By this switching operation, the
signals are converted into switching pulses and a high frequency power is supplied to the CL (Xenon lamp) by the transformer.
12.CCD PWB operational description
The CCD PWB is provided with the CCD (Charge-Coupled Device), the differential amplifier which amplifies CCD signals, and the AD convertor which
converts the amplified signals into digital signals.
The DC power and the pulse supply pins necessary for operating the CCD image sensor are the power source (CD pin), GND (SS pin), shift pulse (SH
pin), transfer pulse (ø1 pin), (ø2 pin), reset pulse (/RS pin), clamp pulse (/CP pin), and sampling (/SP pin).
Photo data are stored in the light receiving element at the center of the CCD by the SH signal. Even number pixel data are sent to one of the two shift
registers which are positioned at both ends of the light receiving element, and odd number pixel data are sent to the other shift register. The time
interval between inputting two SH signals is called the photo accumulation time.
The signals are transfered to the register, then to the shift register sequentially by transfer pulsesø1 and ø2 and to the floating capacitor section where
electric signals are voltage-converted. Electric charges from the even number pixel shift register and the odd number pixel shift register are flowed to
the floating capacitor section alternatively.
The /RS signal is the reset signal of the CCD output signal. The CCD output is expressed as electric charges equivalently accumulated in the capacitor.
Therefore, to take the CCD output data one pixel by one pixel, one output data must be cleared after it is outputted. The /RS signal is used for that
operation.The /SP pulse signal is the peak hold signal of the signal voltage.
The output signal from the CCD is amplified by about 4.7 times greater in the differential amplifier circuit in the CCD PWB.
Differential amplification is made for the signal output (OS) and the compensation output (DOS).
The amplified CCD signal output is sent to the clamp circuit. In the clamp circuit, the black level is clamped to 2V at the BCLK signal timing by the
analog switch. The clamped voltage is maintained for one line by the coupling capacitor. The clamped analog signal is impedance-converted and
inputted to the AD convertor.
The analog signal inputted to the AD convertor is converted into 8bit digital data and passed to the PCU PWB.
The machine employs the TCD1501C as the image sensor. The TCD1501C is the reduction type high sensitivity CCD linear sensor of one-output
system. 5000 pixels of 7um x 7um are arranged in line to allow scanning of A3 document at 400dpi (16 lines/mm).
Invertor circuit and transformer
Output 1.5kV (effective voltage)
CL (Xenon lamp)
CL- (CNT)
Input +24V
CCD analog shift register 1
CCD analog shift register 2
Photo diode
12V
Output
Photo diode
Accumulation electrode
Shift electrode
To Shift register
Photo energy
- DIGITAL COPIER 1
- CAUTION 2
- CONTENTS 4
- [1] GENERAL 5
- [2] SPECIFICATIONS 6
- 3. Copy performance 8
- 4. Printer specifications 9
- [3] CONSUMABLE PARTS 10
- Production control 11
- 1. Appearance 12
- 2. Internal 12
- 1234567 891011 12 13
- 181716151413 13
- (AL-1551) 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
- 4 or 5 times 20
- Paper guide (B) 20
- Paper guide (A) 20
- 8. Power to copier 21
- B. Windows 98: 22
- C. Windows Me/Windows 2000: 22
- D. Windows 3.1x: 22
- 10.Parallel interface 23
- [6] COPY PROCESS 24
- 2. Outline of print process 25
- 3. Actual print process 25
- About DC 5.2kV 26
- Process controlling 27
- [7] OPERATIONAL DESCRIPTIONS 28
- 2. Scanner section 29
- No Component Function 30
- (1) Heat roller 31
- (2) Separator pawl 31
- (3) Thermal control 31
- (4) Fusing resistor 31
- 7. SPF section 35
- C. Operational descriptions 36
- A. Initial state 36
- B. Front copy 36
- Upper Side of Gate 37
- Gate OFF 37
- Transfer 38
- Lock pawl rear 38
- Lock pawl front 38
- 2. Operation panel section 39
- 3. Optical section 40
- Thermistor 41
- PPD2 sensor 42
- Hearter lamp 42
- Heat roller 43
- B. Disassembly procedure 44
- Clutch unit 48
- Paper feed 48
- Wire treatment 49
- 7. Rear frame section 52
- 8. Power section 53
- A. Sensor PWB 54
- B. Pickup solenoid 54
- C. Clutch 54
- F. SPF motor 55
- G. Paper entry sensor 55
- 10.2nd cassette section 56
- D. Transport roller 57
- E. Paper feed clutch 57
- F. 2nd paper feed roller 57
- B. Cassette detection switch 57
- C. Paper feed solenoid 57
- (1) Remove the rear cabinet 58
- (2) Remove the shield plate 58
- (3) Remove the RSPF 59
- (1) Remove the clutch unit 60
- (2) Remove the clutch 60
- J. Transport unit removal 61
- K. Belt 1 61
- (1) Remove the parts 62
- (2) Remove the parts 63
- (1) Remove the reverse gate 64
- (2) Remove the solenoid 64
- Fixing Screws 65
- Set screw 66
- Scanner unit drive pulley 66
- LL and LR: 67
- Distance between the copy 67
- (1) Outline 68
- Shizuoka 69
- (1) Lead edge adjustment 70
- Lens unit number 70
- ( ) direction 70
- Reference line (0) 70
- (+) direction 70
- 2.0mm or less 71
- 2. Copy density adjustment 72
- Non toner 73
- Toner save 73
- The front edge of the 74
- Front edge of paper 74
- [10]SIMULATION, TROUBLE CODES 75
- 2. List of simulations 76
- 4. Trouble codes 88
- [11]USER PROGRAM 89
- [12]ELECTRICAL SECTION 90
- B. MCU PWB unit 91
- (1) CPU signal table 92
- (2) ASIC (Signal table) 94
- 3. Reset circuit 99
- A. Outline 100
- 5. Driver circuit (Solenoid) 101
- 7. Main motor drive circuit 101
- 8. Mirror motor circuit 102
- 9. Duplex motor circuit 102
- A. Block diagram 103
- (1) Main section 104
- (2) FW signal 105
- (3) Heater lamp drive circuit 105
- (4) High voltage section 105
- 11.CL invertor PWB (circuit) 106
- 13.Operation section 107
- [13]CIRCUIT DIAGRAM 108
- AL-1551 CIRCUIT DIAGRAM 13-2 109
- AL-1551 CIRCUIT DIAGRAM 13-3 110
- AL-1551 CIRCUIT DIAGRAM 13-4 111
- AL-1551 CIRCUIT DIAGRAM 13-5 112
- AL-1551 CIRCUIT DIAGRAM 13-6 113
- AL-1551 CIRCUIT DIAGRAM 13-7 114
- AL-1551 CIRCUIT DIAGRAM 13-8 115
- AL-1551 CIRCUIT DIAGRAM 13-9 116
- GDI MEMORY PWB (6MB) 117
- POWER SUPPLY (120V/127V) 118
- POWER SUPPLY (200V Series) 119
- ACTUAL WIRING DIAGRAM 1/5 120
- AL-1551 CIRCUIT DIAGRAM 13-14 121
- AL-1551 CIRCUIT DIAGRAM 13-15 122
- AL-1551 CIRCUIT DIAGRAM 13-16 123
- AL-1551 CIRCUIT DIAGRAM 13-17 124
- CAUTION FOR BATTERY DISPOSAL 125
- COPYRIGHT 126
- 2001 BY SHARP CORPORATION 126
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Inhaltsverzeichnis
Y / C* / M
10
Wall Plate
12
HE/HG Switch
17
HG for a gas
18
Note: In
21
Span Adjust
23
Heat 24V or
28
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