Power Supply Circuit - Epson LX-810 Technical Manual

The E05A30 functions are as follows
1. Parallel l/F
2. Address decoder
3. Data address multiplexer
4. PF motor control
5. CR motor control
6. Control panel LED drive
7. Printhead drive control
The EEPROM has a 256-bit memory, and remembers the current paper position.
Other control circuits are as follows:
' Paper feed motor drive circuit
The paper feed motor drive circuit drive:; the paper feed motor. The paper feed motor is a 4 phase-step
motor. The rotation of the motor (position and speed) is controlled by outputting the phase switching
signal by the E05A30 gate array.
Carriage motor drive circuit
The carriage motor drive circuit drives the carriage motor. The carriage motor is a 4 phase-step motor.
The rotation of the motor (position and speed) is controlled by outputting the phase switching signal
by the E05A30 gate array.

Power supply circuit

The circuit converts the AC power source to the DC voltages required by the unit. Specifically, the circuit
converts the AC power to +24, +5, and + 12 V DC.
2-9
REV.-A