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EPSON Stylus Photo R800
Revision A
OPERATING PRINCIPLES
Electrical Circuitry Operating Principles
34
The following is the block diagram of the power supply circuit.
Figure 2-14. Power Supply Circuit Block Diagram
2.3.2 C550 MAIN Circuit Operating Principle
The C550 MAIN Board consists of the following circuits and sensors.
Logic Circuits (CPU-ASIC 2 in 1, PROM, SDRAM)
Motor control/Drive circuits
(CR Motor, PF Motor, APG Motor, ASF Motor, Pump Motor)
Head control/Drive circuit
Interface Circuits
USB 2.0, IEEE1394
Sensor circuits
Reset circuits
EEPROM circuit
D/A converter circuit
Download Service Manual And Resetter Printer at http://printer1.blogspot.com