Epson Stylus COLOR 1160 Service Manual page 44

EPSON Stylus COLOR 860/1160
Table 2-11 shows the functions of the CPU, ASIC, and slave CPU.
Table 2-11. Functions of the CPUs and ASIC
IC Location Function
• Sets the current value for the ASF/Pump motor.
• Measures the printhead temperature.
CPU IC20
• Several interrupting functions
• Outputs the system clock signal.
• Controls interfaces.
• Controls the printhead drive waveform circuit.
• Transfers serial data to the printhead.
• Controls the ASF/Pump motor
ASIC IC8
• Receives panel control signals and sensor signals
• EEPROM
• Controls detection of the signals output from the
encoder.
• Sets the current value for the PF motor and CR
Slave CPU
motor.
for DC IC15
motors • Controls the PF motor and CR motors.
Operating Principles Electrical Circuit Operating Principles
Revision C
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