Epson TM-U950 Technical Manual page 71

CONFIDENTIAL
Switch PCB unit
FEED buttons
LEDs (power, paper status, and error)
Cover open sensor
Main PCB
Power supply circuit
Reset circuit
CPU
Memory (ROM: 512 KB, RAM: 64 KB, EEPROM)
Gate array
Operation panel control circuit
Host interface circuit
Drawer kick-out circuit
Print head drive circuit
Solenoid drive circuits
Paper feed motor drive circuit
Auto-cutter control
Carriage motor drive circuit
Actuator irregular operation protection circuit
Mechanism sensor circuits
IM-403/405 connection circuit (not supported by the TM-U950P)
MICR board (on printers with an MICR reader) (not available on the TM-U950P)
Power supply section (eliminates power supply noise)
Input section (protects against excessive voltage)
Amplifier section
Signal limiting section
Signal switching section
Self-bias current supplier
2-26 Mechanism Configuration and Operating Principles Rev. A