
EPSON Stylus Photo 1390/1400/1410
Revision B
OPERATING PRINCIPLES
Electrical Circuit Operating Principles
36
2.3.1 Power Supply Circuit Operating Principle
The power supply circuit board of this product is the C589 PSB.
Basic circuit structure
Flyback switching system
+42VDC and +3.3VDC are supplied to the Printer Mechanism and Control
Board
The following indicates the applications of the voltages generated in this power supply
circuit.
The following is a block diagram of the power supply circuit.
Figure 2-13. Power Supply Circuit Block Diagram
Table 2-9. Supplied Power
Voltage
Applications
+42VDC
Rated output current: 0.45A
• CR Motor
• PF Motor
• PG Motor
• ASF Motor
• Pump Motor
• Head drive voltage
+3.3VDC
Rated output current: 0.5A
• Logic sensor circuit
• Sensor circuit
• Nozzle selection circuit (on the Printhead)
• Interface control circuit
C51, C52
C11
D11, D12,
D13, D14
C1, FL1
F1, TH1
AC Input
QF1
D51
ESAVE
PSC Signal
+5VDC
+3.3VDC
+42VDC
F51
IC51
Over Current
Protection
TRANS: T1
Smoothing
Circuit
Over Current Limitation
Over Voltage Limitation
Secondary Power
Supply SW function
Low Power mode
Separate-excited
Simulated Resonance
Flyback Converter
Filter Circuit
Full Wave
Rectifier
Circuit
Main Switching
Circuit
Smoothing
Circuit
+3.3V Chopper
Circuit
Fuse for LPS
Содержание 1400 - Stylus Photo Color Inkjet Printer
Страница 1: ...EPSONStylusPhoto1390 1400 1410 Color Inkjet Printer SEIJ06009 SERVICE MANUAL ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 21: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 39: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 71: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 131: ...C H A P T E R 5 ADJUSTMENT ...
Страница 148: ...C H A P T E R 6 MAINTENANCE ...
Страница 157: ...C H A P T E R 7 APPENDIX ...
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Страница 164: ...Model PM G4500 Stylus Photo 1390 1400 1410 Board C655 Main Rev A Sheet 2 2 ...
Страница 165: ...Model PM G4500 Stylus Photo 1390 1400 1410 Board C589 PSB Rev D Sheet 1 1 ...
Страница 166: ...Model PM G4500 Stylus Photo 1390 1400 1410 Board C589 PSE Rev B Sheet 1 1 ...
Страница 167: ...Model PM G4500 Stylus Photo 1390 1400 1410 Board C589 Panel Rev B Sheet 1 1 ...
Страница 168: ...Model PM G4500 Stylus Photo 1390 1400 1410 Board C653 Head Rev B Sheet 1 1 ...