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EPSON Stylus COLOR 860/1160
Revision C
Operating Principles
Electrical Circuit Operating Principles
44
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
CPU
IC20
• Sets the current value for the ASF/Pump motor.
• Measures the printhead temperature.
• Several interrupting functions
• Outputs the system clock signal.
ASIC
IC8
• Controls interfaces.
• Controls the printhead drive waveform circuit.
• Transfers serial data to the printhead.
• Controls the ASF/Pump motor
• Receives panel control signals and sensor signals
• EEPROM
• Controls detection of the signals output from the
encoder.
Slave CPU
for DC
motors
IC15
• Sets the current value for the PF motor and CR
motor.
• Controls the PF motor and CR motors.
Summary of Contents for Stylus COLOR 1160
Page 8: ...C H A P T E R PRODUCTDESCRIPTION ...
Page 28: ...C H A P T E R OPERATINGPRINCIPLES ...
Page 53: ...C H A P T E R TROUBLESHOOTING ...
Page 74: ...C H A P T E R DISASSEMBLYANDASSEMBLY ...
Page 116: ...C H A P T E R ADJUSTMENT ...
Page 150: ...C H A P T E R MAINTENANCE ...
Page 160: ...APPENDIX C H A P T E R ...